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SBA Communications

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FY2017 Annual Report · SBA Communications
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SBA COMMUNICATIONS CORPORATION
ANNUAL REPORT 2017

PAGE

4

PAGE

9

CUSTOMERS

EMPLOYEES

OUR  
VISION

To be the most respected organization in our industry by 
our customers, employees, shareholders and communities. 

PAGE

16

PAGE

22

SHAREHOLDERS

COMMUNITIES

SBA Generates Revenue from Two Primary Businesses

SITE LEASING

SBA leases antenna space on our multi-tenant towers to a variety of wireless 
service providers under long-term lease contracts. We own and operate over 
28,000  sites  across  the  Western  Hemisphere.  In  addition,  SBA  manages 
approximately  9,000  communication  site  locations  on  behalf  of  third-party 
owners. Site Leasing represented 94% of our total 2017 revenue.

SITE DEVELOPMENT SERVICES

SBA  offers  wireless  service  providers  assistance  in  developing  their  own 
networks. Our extensive site development experience includes participation in 
the development of over 120,000 communication sites over our 29-year history.

3

SBA COMMUNICATIONSAnnual Report 2017OUR  
CUSTOMERS

Our customers include 
wireless companies and 
government entities that use 
our infrastructure for essential 
communications networks. 

SBA  COMMUNICATIONS  PROVIDES  THE 
WIRELESS  INFRASTRUCTURE  AND  SERVICES 
THAT  ENABLE  OUR  CUSTOMERS  TO  FULFILL 
THEIR  NETWORK  NEEDS  ACROSS  THE 
WESTERN  HEMISPHERE. 

SBA  owns  and  operates  wireless  towers  in  13 
countries,  supporting  wireless  network  operators 
as  they  provide  communications  services  to  their 
subscribers. Our customers include wireless carriers, 
broadcasters,  and  government  entities.  These 
customers have invested heavily in communications 
networks,  including  approximately  $500  billion  in 
the  U.S.  alone  since  the  inception  of  the  wireless 
industry.*  Today,  there  are  more  wireless  devices 
than people in the United States. Wireless service is 
an increasingly important part of people’s  everyday 
life. The average U.S. consumer checks their phone 
50 times throughout the day.* 

infrastructure 

SBA  provides  critical  infrastructure  for  wireless 
communications.  Our 
is  used 
by  wireless  companies  to  house  transmission 
equipment.  Deployment  and  optimization  of 
spectrum,  to  meet  demand  growth,  often  leads 
to additional site leasing revenue for SBA towers. 
As  wireless  usage  has  grown,  our  business 
has  followed.  More  growth  is  expected:  Cisco 
forecasts  global  mobile  data  traffic  will  increase 
seven-fold by 2021. 

*Source: CTIA

4

SBA COMMUNICATIONSAnnual Report 2017This is forecast to increase to 77% by 2020.*61%

Sustained  growth  in  wireless  usage  and  high-capacity 
applications: In 2016, 61% of mobile traffic was from video. 

5

SBA COMMUNICATIONSAnnual Report 2017RESILIENT  
INFRASTRUCTURE 

2017 was a particularly active year for major storms. Four storms 
hit the United States and its territories where 2/3 of our towers are 
located, and our assets performed well. Only 1 out of more than 2,000 
sites in the storms’ path was significantly damaged. Immediately 
following the passing of the storms, SBA worked with our customers 
to quickly help them restore their wireless networks. 

6

SBA COMMUNICATIONSAnnual Report 2017One way to meet growing demand is to develop new infrastructure. SBA has 
been building towers since its inception. SBA builds towers for itself and for 
wireless  service  providers.  SBA  provides  construction  services  on  a  single 
tower basis or by delivering a complete turnkey network deployment solution 
tailored  to  meet  specific  needs.  For  wireless  service  providers,  our  proven 
ability  to  adhere  to  customer  budget  restrictions,  deadlines  and  technical 
requirements,  combined  with  our  knowledge  of  local  requirements  and 
superior safety record, makes SBA the first choice provider for our customers. 
SBA has participated in the development of more than 120,000 sites over our 
29-year history. 

t-mobile

Our largest customers as a percentage of 
site leasing revenue are:
26% at&t
16%
15%
15%
8%
20%

other Telephony

verizon

sprint

oI

+2

SBA  entered  two  new  markets  in  2017:  

Peru  and  Argentina,  where  America  Movil  and  Telefonica  are  the  primary 
mobile service providers. Our extensive portfolio of Central and South American 
assets has grown through acquisitions and new tower builds.

7

SBA COMMUNICATIONSAnnual Report 2017We support government 
agencies with wireless 
infrastructure solutions, 
including the expected 
deployment of the FirstNet 
public safety network. 

8

SBA COMMUNICATIONSAnnual Report 2017OUR  
EMPLOYEES

Our employees seek and 
achieve excellence in all 
they do.

The  success  SBA  has  achieved  as  a  company  is 
based  upon  the  focused  passion  and  dedication  of 
our  people.  Our  employees’  commitment  to  SBA 
provides  better  service  to  our  clients,  creates  an 
inclusive  and  collegial  working  environment  and 
generates long-term value for our shareholders and 
the communities in which we serve.

SBA encourages an inclusive work environment and 
we respect the diversity our employees bring to the 
organization through their unique ideas, opinions and 
contributions. Our employees exemplify our mission 
statement  of  seeking  and  achieving  excellence  in 
all we do at SBA. We have offices around the world 
and,  no  matter  where  we  are  located,  we  embrace 
and foster a unified culture that embodies our guiding 
principles. All of our employees are shareholders at 
SBA – we have the ownership mindset. 

SBA  is  committed  to  hiring  military  veterans  and 
has been recognized on the 2017 Military Friendly® 
Employers  list  by  Victory  Media.  The  2017  list  of 
Military  Friendly®  Employers  distinguishes  elite 
the 
companies  who  boast 
strongest 
job  opportunities, 
hiring  practices  and  retention 
transitioning 
programs 
service  members 
seeking 
civilian employment.

for 

9

SBA COMMUNICATIONSAnnual Report 2017One of our top priorities is the 
safety of our tower climbers. 

Since  2001,  tower  climber  training  has  been  required 
for SBA employees and taught in the field. In 2013, SBA 
took a quantum step forward in the safety area when we 
opened our internal facility “Tower U”, headquartered in our 
Southeast Region, to consolidate training in one location. 
This  facility  was  developed  in  response  to  the  need  for 
highly skilled tower professionals and provides a four-day 
safety  certification  program  that  all  SBA  employed  tower 
climbers must complete before climbing. From time to time, 
we also train first responders and others in tower rescue 
and related skills, and we are pleased and fortunate to be 
able to share our skills and resources with the communities 
where we work and live.

10

SBA COMMUNICATIONSAnnual Report 2017TM

11

SBA COMMUNICATIONSAnnual Report 2017ANIMALS 

CHILDREN

Over the years our organization has been able to impact 
over 100 different charitable organizations through our 
corporate  philanthropic  program  “SBA  Cares”.  We 
have a large corporate giving program. We offer team 

and individual volunteer time off each year as well as 
contributions to match employee charitable donations. 
Dozens  of  diverse  nonprofits,  located  across  a  wide 
geography,  have  benefited  over  the  years  from  the 

12

SBA COMMUNICATIONSAnnual Report 2017Philanthropy is a key focus for SBA and we are proud of the 
impact our employees have in supporting their communities. 

HEALTH

SOCIAL SERVICES

support  of  our  employees.  Participation  is  voluntary, 
but  has  continued  to  grow  year  after  year  with  2017 
being  our  largest  year  ever  in  terms  of  aggregate  
giving.  In  2017,  the  main  area  of  focus  for  our  

employees fell into four categories: Animals, Children, 
Health and Social Services. SBA is committed to our 
philanthropic endeavors and proud of how our people 
truly “Change Lives”.

13

SBA COMMUNICATIONSAnnual Report 2017+5.7%

Site 
leasing  segment 
operating  profit  for  the 
year  2017  was  $1,264 
million  compared 
to 
$1,196  million  for  the 
year  2016;  an  increase 
of 5.7%.

+5.5%

leasing 

revenue 
Site 
for  the  year  2017  was 
$1,623 million compared 
to $1,538 million for the 
year  2016;  an  increase 
of 5.5%.

1,481

1,360

1,133

846

1,059

1,156

862

657

1,623

1,538

1,264

1,196

2012

2013

2014

2015

2016

2017

14

Site Leasing Revenues in Millions

Site Leasing Operating Profit in Millions

SBA COMMUNICATIONSAnnual Report 2017FINANCIAL HIGHLIGHTS
2016 vs 2017

In thousands (except per share data) 
for year ended December 31, 

2016

2017

% Change

Revenues

Site Leasing

Site Development

Total Revenues

Cost of Revenues

Site Leasing

Site Development

$1,538,070

$1,623,173

$95,055

$104,501

$1,633,125

$1,727,674

$342,215

$78,682

$359,527

$86,785

Total Cost of Revenues

$420,897

$446,312

Operating Profit

Site Leasing

Site Development

$1,195,855

$1,263,646

$16,373

$17,716

Total Operating Profit

$1,212,228

$1,281,362

Selling, general & administrative expenses

$143,349

$130,697

Net income attributable to  
SBA Communications Corporation

Basic & diluted net income per share

Weighted average number of shares (basic)

Weighted average number of shares (diluted)

$76,238

$103,654

$0.61

124,448

125,144

$0.86

119,860

121,022

As of December 31, cash, cash equivalents, short-term 
investments and short-term restricted cash

$183,118

$101,937

Total Assets

$7,360,945

$7,320,205

Total Principal Amount of Indebtedness

$8,875,000

$9,405,000

5.5%

9.9%

5.8%

5.1%

10.3%

6.0%

5.7%

8.2%

5.7%

-8.8%

15

SBA COMMUNICATIONSAnnual Report 2017OUR  
SHAREHOLDERS

Our shareholders include large 
institutions, individual investors, 
employees and others.

TO OUR SHAREHOLDERS:

2017  was  an  exceptionally  strong  year  for  SBA 
Communications,  a  page  torn  directly  from  the 
historical SBA play book. We posted solid operational 
results,  deployed  capital  wisely,  grew  the  portfolio 
organically, expanded our domestic and international 
footprint,  maintained  our  leverage  ratio  within  our 
stated range, and improved operating margins while 
still reducing our share count. Our shareholders were 
handsomely  rewarded  with  our  stock  appreciating 
58%, the best performing year since 2012. We were 
among the top 50 performers within the S&P 500 in 
2017 and outperformed the index by 36%, a display 
of our ability to create value well beyond the general 
market’s  ebb  and  flow.  In  September,  SBA  was 
selected to replace an outgoing member of the S&P 
500  Index,  joining  our  U.S.  public  tower  company 
peers among the index constituents. We view this as 
a  great  honor  and  a  testament  to  what  we’ve  been 
able to accomplish over the 19 years as a U.S. listed 
public company.

In  2017,  our  operational  results  were  solid.  Total 
revenue grew 5.8%, site leasing revenue grew 5.5%, 
tower  cash  flow  grew  6.6%,  adjusted  EBITDA  grew 
8.8% and AFFO per share grew 16.8%. We posted the 
highest annual adjusted EBITDA margin in Company 

16

history at 70.4%. An impressive feat as we continued 
to grow our international footprint, add employees and 
overhead  in  new  markets,  and  layer  in  less  mature 
and  lower  margin  sites  into  the  overall  portfolio.  We 
ended  the  year  with  27,909  sites  and  achieved  our 
goal  of  five  to  ten  percent  annual  portfolio  growth, 
actually  growing  6.5%.  Our  international  business 
reached  $300  million  of  site  leasing  revenue  and 
$200 million of tower cash flow, a material jump from 
where we were just five years ago. We continued to 
expand our operations, entering into two new markets, 
totaling 12 geographies outside the United States. We 
ended the year with over 16,000 tenants and 11,930 
communication sites in our international markets. We 
built a company high 412 international sites in one year, 
building in 11 out of the 12 markets we operate in. Of 
those new builds, roughly 200 were built in Brazil, the 
largest number of sites we’ve ever built in a given year 
in  a  country  outside  the  United  States.  Beyond  our 
new  build  program,  we  purchased  over  940  sites  in 
Brazil in the largest international transaction since our 
Oi transaction in June of 2014. We continue to remain 
bullish on all of our international markets, particularly 
Brazil,  as  our  customers  continue  to  improve  on 
network quality in a manner similar to what we have 
seen in the United States.

SBA COMMUNICATIONSAnnual Report 2017S&P500

In 2017, we were added to the S&P 500 Index.

17

SBA COMMUNICATIONSAnnual Report 20172017 was a milestone 
year for our international 
business. 

We continued to stay focused on both direct and non-
direct expenses. In 2017, our cash cost of site leasing 
revenues  represented  20.5%  of  cash  site  leasing 
revenues, down approximately 50 basis points from 
2012.  We  attributed  this  reduction  primarily  to  the 
success  of  our  general  cost  control  initiatives,  land 
buyout  program,  and  the  fact  that  our  contracted 
revenues  outpaced  our  contracted  expenses.  We 
also continued to focus on securing the land beneath 
our  sites  and  the  associated  ground  rent  expense, 
our  largest  expense  within  our  cost  structure.  In 
2017, in conjunction with our land buyout program we 
spent an aggregate of $67.4 million buying land and 
easements as well as extending ground lease terms, 
levels  similar  to  that  of  2015  and  2016.  We  believe 
there is much to do on this front, particularly as we 
enter new markets with untapped savings potential. 

Second  to  operational  excellence,  we  view  capital 
allocation  as  the  most  important  tool  for  value 
creation. In 2017, SBA allocated $1.5 billion with the 
large  majority  going  toward  acquisitions  and  share 
repurchases.  Of  the  $1.5  billion,  $456  million  went 
to  acquisitions  in  nine  different  markets,  two  being 
new  geographies  for  SBA,  Peru  and  Argentina. 
We’re  excited  about  these  new  markets  as  both 
geographies complement our existing Latin America 
footprint.  In  Peru,  there  are  four  competitive  active 
wireless  carriers  and  rapid  growth  occurring  in  the 
percentage  of  the  population  accessing  wireless 
mobile  Internet  services.  Argentina  is  one  of  the 
largest  markets  in  South  America  and  we  believe 
will be a source of meaningful growth opportunities 
over  the  coming  years.  The  investment  in  wireless 
in 
infrastructure  has  been  significantly 
Argentina  for  many  years.  We  expect  competition 
and  lagging  wireless  network  performance  to  be 
drivers  of  meaningful  investment  by  the  wireless 
service providers for years to come. Our strategy in 
these  new  markets  will  be  the  same  as  throughout 

lacking 

18

the rest of Latin America: establish SBA as a long-
term  player  with  superior  financial  and  operational 
resources  and  cultivate  deep  relationships  with  our 
customers  based  on  trust  and  performance.  While 
we’re  certainly  satisfied  with  our  decision  to  focus 
on the Western Hemisphere, we continue to remain 
open to new geographies across the globe. However, 
we are also deeply committed to staying disciplined. 
Our core strengths and stringent investment criteria 
will continue to govern our decision making. As with 
all of our investments, superior risk-adjusted returns 
and what’s best for our shareholders will always drive 
the final investment decision.

While our preference is portfolio growth, we’ve seen 
good opportunities to repurchase our common stock 
at  attractive  prices.  In  2017,  we  spent  $855  million 
to  repurchase  our  shares,  the  most  in  any  year  in 
Company  history.  We  retired  5.8  million  shares,  or 
approximately 5% of our current shares outstanding. 
On average, we repurchased shares at $146.11 per 
share,  levels  we  believe  to  be  well  below  intrinsic 
value. Since reinitiating our buyback program in 2015, 
we’ve purchased $1.9 billion worth of common stock, 
outpacing  all  other  capital  allocation  activities.  We 
continue to view share repurchases as opportunistic 
and remain at the ready to take advantage of short-
term market dislocations. Moving forward, we expect 
share  repurchases  to  be  an  integral  part  of  our 
capital allocation decisions and view this program as 
an important component of our efforts to achieve our 
goal of $10.00 or more of AFFO per share by 2020.

The debt capital markets continued to treat SBA as 
a  preferred  issuer.  In  2017,  we  successfully  issued 
$1.5 billion of debt with an average weighted coupon 
of 3.6%, levels similar to that of our overall weighted 
average  coupon  across  all  debt  instruments.  At 
current prices, we intend to maintain leverage within 
our stated range of 7.0x to 7.5x net debt to annualized 
adjusted  EBITDA  and  invest  incremental  capital. 

SBA COMMUNICATIONSAnnual Report 2017Conversely, we feel very comfortable with our ability 
to de-lever quickly should we feel the need to alter our 
balance  sheet  strategy.  Our  built-in  escalators  and 
high tenant renewal rates provide us the opportunity 
to organically de-lever, should we deem it appropriate 
to do so. We continue to believe our capital structure 
strategy remains a key differentiator among our peer 
group.

Steven E. Bernstein
Founder and Chairman of the Board

Jeffrey A. Stoops
Director, President and  
Chief Executive Officer

As a predominantly U.S. macro tower company, the 
future looks as bright as ever. We believe the United 
States  wireless  market  is  the  best  in  the  world  and 
SBA is at the center of a robust spending cycle which 
should  lead  to  years  of  elevated  organic  growth. 
From  smartphones  to  tablets,  the  U.S.  consumer 
continues  to  embed  wireless  devices  into  their 
everyday  life  and  their  dependency  on  a  reliable 
wireless  network  is  ever-growing.  According  to 
Cisco’s white paper titled, “Visual Networking Index: 
Forecast and Methodology, 2016-2021,” published on 
June 6, 2017, Cisco projects mobile data traffic over 
the  next  five  years  to  grow  47%  and  34%  per  year 
in  Latin  America  and  North  America,  respectively. 
Demand has never been higher for wireless services 
and  our  customers  continue 
to  invest  in  their  network  in  an 
effort  to  satisfy  their  customers’ 
insatiable appetite for ubiquitous 
mobile wireless services.

they 

Source: CTIA

We’re  actively  engaged  with  all 
four major U.S. wireless carriers 
as 
focus  on  network 
upgrades  and  densification. 
We  believe  2018  will  provide 
opportunities for SBA to sign up 
new business above and beyond 
levels seen in 2017. Our customers have a lot to do. 
One  of  these  opportunities  is  the  FirstNet  initiative. 
FirstNet  is  an  independent  authority  within  the  U.S. 
Department of Commerce, authorized by Congress

93%

Competitive 
Carrier Market
93% of Americans 
have more than 
4 choices of a 
wireless provider.  

Kevin L. Beebe
Director

Brian C. Carr
Director

Mary S. Chan
Director

Duncan H. Cocroft
Director 

George R. Krouse Jr. 
Director

Jack L. Langer
Director

19

SBA COMMUNICATIONSAnnual Report 2017in  2012,  to  provide  broadband  services  through 
dedicated  spectrum  to  first  responders.  As  of  the 
end  of  2017,  all  50  states  opted  in  for  the  FirstNet 
program  and  AT&T,  FirstNet’s  partner,  should  be 
very busy over the next several years deploying 700 
megahertz  spectrum  nationwide.  Other  near-term 
opportunities include 2.5 GHz, AWS-3, WCS and 600 
MHz spectrum and 600 MHz spectrum deployments. 
We expect to be very busy in 2018 as our application 
backlog continues to grow in connection with these 
projects. In the not-too-distant-future, 5G will be here, 
paving the way for future growth opportunities. We’re 
excited  about  SBA’s  potential  to  benefit  from  5G 
wireless  business  use  cases  such  as  autonomous 
driving, 
IoT  services  and  business-to-business 
communication. We continue to strategically pursue 
opportunities  that  leverage  our  existing  assets  and 
expertise in order to maximize our growth as the world 
of wireless continues to evolve. While we can’t state 
with certainty what the future will hold, we do believe 
macro cell sites will continue to be the backbone for 
future wireless networks.

5G

2017  was  a  difficult  year  for  natural  disasters,  from 
wild fires in California to multiple hurricane landings 
in  the  United  States  and  its  territories.  Among  the 
four  major  hurricanes, 
Harvey, 
Irma,  Maria 
and  Nate,  we  were 
pleased  to  report  only 
one  structure  out  of 
thousands 
the  many 
in 
hurricanes’ 
path  suffered  material 
damage.  While  these 
occurrences 
are 
never  welcomed,  we 
pleased  with 
were 
and 
strength 
the 

Further Wireless 
Innovation
5G will unlock 
new cycles of 
innovation and 
investment  
across  
the mobile  
ecosystem.  

Source: CTIA

the 

20

20B

IoT devices 
worldwide 
Number of IoT  
devices worldwide  
is forecast 
to surpass  
20 billion  
in 2020. 

underscored 

durability  of  our  affected 
sites,  and  the  responses  of 
our  employees.  These  major 
storms 
and 
highlighted  the  importance  of 
our  meticulous  approach  to 
building and purchasing sites, 
sites which are constructed to 
survive  even  in  the  harshest 
conditions.

Source: Gartner

review,  SBA  performed 
In 
exceptionally  well  this  year 
against the backdrop of strong 
operational results and an enhanced outlook for the 
future of our industry. We believe we have the best 
tower assets in the world and 2017 was a reflection 
of that. We remain on track to achieve our goal of at 
least $10 or more of AFFO per share by 2020 and will 
work diligently to achieve that goal. 

In conclusion, I would like to personally thank each 
and every employee for their hard work. I truly believe 
we have the best employees in the industry and I have 
the utmost confidence in their ability to deliver strong 
results year in and year out. To our shareholders, we 
remain grateful for your support and I look forward to 
communicating in the future.

Sincerely,

Jeffrey A. Stoops
President and Chief Executive Officer

SBA COMMUNICATIONSAnnual Report 2017SBAC

Publicly traded and listed  
on the 
 NASDAQ exchange 

28,000

Approaching 28,000 sites  
across the  
Western Hemisphere

REIT

Specialized real estate  
business elected REIT status  
January 2016

Stellar Shareholder Return

”

Since our IPO in  
June 1999, SBA share 
price has grown an 
average of 17% per 
year, something we 
are very proud of.
Jeffrey A. Stoops
President and 
Chief Executive Officer

Nasdaq: SBAC
June 1999 - Dec 2017

94%

Site Leasing
94% of revenue comes 
from our site leasing 
business, where we 
lease antenna space 
to wireless service 
providers on towers that 
we own or operate

1.8x

Customers
Average of 1.8 tenants 
per tower structure 
and an average 
capacity of 4.0 tenants. 
Increasing mobile data 
consumption will drive 
demand for tower space

13Countries 

Own 27,909 sites in  
13 countries. Our 
biggest international 
market is Brazil with 
over 7,300 sites  
which we entered in  
December 2012

20+

Management Team 
Extensive experience in
site leasing and site 
development. On average, 
management has over 21 
years of experience in the 
telecom industry and 18 
years with SBA

58%

Stock Price  
Performance  
in 2017

21

99

16

17

SBA COMMUNICATIONSAnnual Report 2017OUR  
COMMUNITIES

Our communities are 
spread throughout the 
Western Hemisphere. 

SBA owns and operates infrastructure that supports 
wireless communications in 13 countries including 
the United States. We have approximately 16,000 
towers in the United States representing a significant 
portion of the domestic infrastructure necessary to 
support  wireless  communication,  including  voice 
calls, texting and video consumption. 

SBA  IS  AN  INTEGRAL  PART  OF  WIRELESS 
COMMUNICATION  AND  HAS  SUPPORTED 
THE  RAPID  GROWTH  OF  THE  WIRELESS 
INDUSTRY  SINCE  OUR  FOUNDING  IN  1989.

Our investment in tower assets is meant to support 
sustained  growth  in  wireless  communication  for 
many  years.  As  shared  infrastructure,  towers  are 
an efficient solution for wireless networks.

SBA  works  with  local  zoning  boards  to  meet  their 
requirements for new towers. Zoning restrictions limit 
tower deployment, thus creating efficient use of real 
estate and a more aesthetically pleasing landscape. 
Municipalities  benefit  from  a  relationship  with  SBA 
through  enhanced  wireless  service  and  revenue 
generation.  SBA  leases  land  from  hundreds  of 
municipalities in the United States.

By working together with its municipal partners, SBA 
has been able to determine the best municipal-owned 
lands on which to place new towers in order to meet 
both wireless needs and community concerns. SBA 
has  been  building  wireless  infrastructure  since 
1989,  and  has  developed  efficient  processes  to 
meet  both  municipal  zoning  requirements  and 
community needs. 

22

*Source: CTIA

SBA COMMUNICATIONSAnnual Report 20174.6MThe  wireless  industry  directly  supports  the  greater  community  with  more 

than 4.6 million jobs in the United States ecosystem.*

23

SBA COMMUNICATIONSAnnual Report 2017Superior service  
and strong long-term 
relationships 

We  have  very  close  relations  with  our  property 
owners, working together with thousands of property 
and venue owners to provide our infrastructure. We 
communicate  regularly  with  property  owners  in  an 
effort  to  build  strong,  long-term  relationships.  We 
provide  these  owners  real  estate  income,  and  will 
consult with them on other options. Often, we acquire 
land or rights and offer a competitive price and quick 
closing.  SBA  looks  to  potential  future  opportunities 
in which to collaborate with our property partners to 
develop new profitable relationships. SBA is a trusted 
tenant, who provides superior service, predictability 
and a commitment to preserve valued relationships 
with property owners.

Network Operations  
Control Center (NOCC) 
provides dependable 
support 

Our  Network  Operations  Control  Center  (NOCC) 
provides  dependable  support  for  towers  in  local 
communities from our headquarters in Boca Raton, 
Florida and currently provides monitoring throughout 
the  United  States  and  Canada,  helping  to  ensure 
compliance  with  all  Federal  Aviation  Authority, 
Federal Communications Commission and Canadian 
Regulations. 

The NOCC is staffed 24/7, 365 days a year by trained 
specialists,  and  is  equipped  with  a  fully  redundant 
emergency back-up system. In addition to monitoring 
the  NOCC  also 
infrastructure, 
communications 
serves  as  a  national  and  international  call  center, 
fielding various types of service calls from South and 
Central America, Canada and the United States, all 
tracked through a reliable ticketing system. 

24

SBA COMMUNICATIONSAnnual Report 2017FORM 10-K
2017 Financial 
Information

UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
WASHINGTON, D.C. 20549 

FORM 10-K 

  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

For the fiscal year ended December 31, 2017 
OR 

  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

For the transition period from                       to                      

Commission file number: 001-16853 

SBA COMMUNICATIONS CORPORATION 
(Exact name of Registrant as specified in its charter) 

Florida 
(State or other jurisdiction of 
incorporation or organization) 

8051 Congress Avenue 
Boca Raton, Florida 
(Address of principal executive offices) 

65-0716501 
(I.R.S. Employer 
Identification No.) 

33487 
(Zip Code) 

Registrant’s telephone number, including area code (561) 995-7670  
Securities registered pursuant to Section 12(b) of the Act:  

Title of Each Class 
Class A Common Stock, $0.01 par value per share 

Name of Each Exchange on Which Registered 
The NASDAQ Stock Market LLC 
(NASDAQ Global Select Market) 

Securities registered pursuant to Section 12(g) of the Act:  
None  

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  

    No  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    Yes  

    No  

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 
during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing 
requirements for the past 90 days.    Yes  

    No  

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required 
to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was 
required to submit and post such files).    Yes  

   No  

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the 
best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to 
this Form 10-K.  

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an 
emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth 
company” in Rule 12b-2 of the Exchange Act. 

Large accelerated filer 

Non-Accelerated filer 

Accelerated filer 

Smaller reporting company 

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Emerging growth company 

If an emerging growth company, indicate by checkmark if the registrant has elected not to use the extended transition period for complying with any new or 
revised financial accounting standards provided pursuant to Section  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)    Yes  

    No  

The aggregate market value of the voting stock held by non-affiliates of the Registrant was approximately $16.2 billion as of June 30, 2017.  
The number of shares outstanding of the Registrant’s common stock (as of February 21, 2018): Class A common stock — 116,507,867. 

Documents Incorporated By Reference  

Portions of the Registrant’s definitive proxy statement for its 2018 annual meeting of shareholders, which proxy statement will be filed no later than 120 
days after the close of the Registrant’s fiscal year ended December 31, 2017, are hereby incorporated by reference in Part III of this Annual Report on Form 
10-K.  

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Table of Contents  

PART I 

BUSINESS 

ITEM 1. 
ITEM 1A.  RISK FACTORS 
ITEM 2. 
ITEM 3. 
ITEM 4.  MINE SAFETY DISCLOSURE 

PROPERTIES 
LEGAL PROCEEDINGS 

PART II 

ITEM 5.  MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER 
MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES 

ITEM 6. 
ITEM 7.  MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 

SELECTED FINANCIAL DATA 

RESULTS OF OPERATIONS 

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 
ITEM 8. 
ITEM 9. 

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 
CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 

FINANCIAL DISCLOSURE 

ITEM 9A.  CONTROLS AND PROCEDURES 

PART III 

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE 
ITEM 11.  EXECUTIVE COMPENSATION 
ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND 

RELATED STOCKHOLDER MATTERS 

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR 

INDEPENDENCE 

ITEM 14.  PRINCIPAL ACCOUNTING FEES AND SERVICES 

PART IV 

ITEM 15.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES  
ITEM 16.  FORM 10-K SUMMARY  

Signatures  

Page 

1  
8  
22 
23  
23 

23  
25  

26  
53  
56  

57  
57  

59 
59  

59  

59  
59  

59 
65 

66  

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ITEM 1. BUSINESS  

General  

We are a leading independent owner and operator of wireless communications infrastructure, including tower structures, 
rooftops, and other structures that support antennas used for wireless communications, which we collectively refer to as “towers” or 
“sites.” Our principal operations are in the United States and its territories. In addition, we own and operate towers in South America, 
Central America, and Canada. Our primary business line is our site leasing business, which contributed 98.7% of our total segment 
operating profit for the year ended December 31, 2017. In our site leasing business, we (1) lease antenna space to wireless service 
providers on towers that we own or operate and (2) manage rooftop and tower sites for property owners under various contractual 
arrangements. As of December 31, 2017, we owned 27,909 towers, a substantial portion of which have been built by us or built by 
other tower owners or operators who, like us, have built such towers to lease space to multiple wireless service providers. We also 
managed or leased approximately 9,000 actual or potential sites, approximately 500 of which were revenue producing as of December 
31, 2017. Our other business line is our site development business, through which we assist wireless service providers in developing 
and maintaining their own wireless service networks.  

Site Leasing Services  

Our primary focus is the leasing of antenna space on our multi-tenant towers to a variety of wireless service providers under 

long-term lease contracts in the United States, Canada, Central America, and South America. We derive site leasing revenues 
primarily from wireless service provider tenants. Wireless service providers enter into tenant leases with us, each of which relates to 
the lease or use of space at an individual site. Our site leasing business generates substantially all of our total segment operating profit, 
representing 96.8% or more of our total segment operating profit for the past three fiscal years. Our site leasing business is classified 
into two reportable segments, domestic site leasing and international site leasing. 

Domestic Site Leasing 

As of December 31, 2017, we owned 15,979 sites in the United States and its territories.  For the year ended December 31, 
2017, we generated 80.6% of our total site leasing revenue from these sites. We derive domestic site leasing revenues primarily from 
AT&T, T-Mobile, Sprint, and Verizon Wireless. Wireless service providers enter into tenant leases with us, each of which relates to 
the lease or use of space at each individual site. In the United States, our tenant leases are generally for an initial term of five to ten 
years with five 5-year renewal periods at the option of the tenant. These tenant leases typically contain specific rent escalators, which 
average 3-4% per year. Our ground leases in the United States are generally for an initial term of five years or more with multiple 
renewal terms of five-year periods, at our option, and provide for rent escalators which typically average 2-3% annually. As of 
December 31, 2017, (1) no U.S. state or territory included more than 10% of our total tower portfolio by tower count, and (2) no U.S. 
state or territory accounted for more than 10% of our total revenues for the year ended December 31, 2017. 

International Site Leasing 

We currently operate in 12 international markets throughout Canada, Central America, and South America. Our largest 
international market is Brazil. As of December 31, 2017, we owned 11,930 towers in our international markets. As of December 31, 
2017, 30.1% of our total towers are located in Brazil and less than 3% of our total towers are located in each of our other international 
markets (each country is considered a market). We continue to focus on growing our international site leasing business through the 
acquisition and development of towers. During 2017, we continued our international expansion with our acquisition of sites in Peru 
and Argentina, as well as additional sites in existing international markets. We believe that we can create substantial value by 
expanding our site leasing services into select international markets which we believe have a high-growth wireless industry and 
relatively stable political and regulatory environments. Our operations in these countries are solely in the site leasing business, and we 
expect to continue to expand operations through acquisitions and new builds, as well as organic lease up on our existing towers. 

We derive international site leasing revenues primarily from Oi S.A., Telefonica, Claro, and TIM. In Canada, our tenant leases 

are generally for an initial term of five to ten years with five 5-year renewal periods at the option of the tenant. These tenant leases 
typically contain specific rent escalators, which average 3-4% per year, including the renewal option periods. Tenant leases in our 
Central American and South American markets typically have an initial term of ten years with multiple five year renewal periods. In 
Central America, we have similar fixed rent escalators to that of leases in the United States and Canada while our leases in South 
America escalate in accordance with a standard cost of living index. In Brazil, tenant leases are typically governed by master lease 
agreements, which provide for the material terms and conditions that will govern the terms of the use of the site.  Tenant leases in 
South America typically provide a pass-through charge for the underlying ground lease rent in addition to the base tenant rent.  Our 

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ground leases in Canada, Central America and South America generally have similar terms and conditions as those in the United 
States, except that the annual escalators in our South American ground leases are based on a cost of living index. Our operations in 
Central America and Ecuador are primarily denominated in United States Dollars. In Brazil, Canada, Chile, and Colombia, 
significantly all of our revenue, expenses, and capital expenditures, including tenant leases, ground leases, and other tower-related 
expenses are denominated in local currency. In Argentina and Peru, our revenue, expenses, and capital expenditures, including tenant 
leases, ground leases, and other tower-related expenses are dominated in a mix of local currency and U.S. dollars.  

Domestic and International Expansion 

We expand our tower portfolio, both domestically and internationally, through the acquisition of towers from third parties and 

through the construction of new tower structures. In our tower acquisition program, we pursue towers that meet or exceed our internal 
guidelines regarding current and future potential returns. For each acquisition, we prepare various analyses that include projections of 
several different investment return metrics, review of available capacity, future lease up projections, and a summary of current and 
future tenant/technology mix.  

The majority of our international markets typically have less mature wireless networks with limited wireline infrastructure and 
lower wireless data penetration rates than those in the United States. Accordingly, our expansion in these markets is primarily driven 
by (i) wireless service providers seeking to increase the quality and coverage of their networks, (ii) increased consumer mobile data 
traffic, such as media streaming, mobile apps and games, web browsing, and email, and (iii) incremental spectrum auctions, which 
have resulted in new market entrants, as well as incremental voice and data network deployments. Since we first entered the Central 
and South American markets, we have built or acquired 11,655 towers as of December 31, 2017 and continue to expand in these 
markets to respond to growing demand.  

We consider various factors when identifying a market for our international expansion, including:  

•  Country analysis – We consider the country’s economic and political stability, and whether the country’s general business, 

legal and regulatory environment is conducive to the sustainability and growth of our business. 

•  Market potential – We analyze the expected demand for wireless services, and whether a country has multiple wireless 

service providers who are actively seeking to invest in deploying voice and data networks, as well as spectrum auctions that 
have occurred or that are anticipated to occur. 

•  Risk adjusted return criteria – We consider whether buying or building towers in a country, and providing our management 

and leasing services, will meet our return criteria. As part of this analysis, we consider the risk of entering into an 
international market (for example, the impact of foreign currency exchange rates, real estate, permitting, and taxation risks), 
and how our expansion meets our long-term strategic objectives for the region and our business generally. 

In our new build program, we construct tower structures (1) under build-to-suit arrangements or (2) in locations that are 
strategically chosen by us. Under build-to-suit arrangements, we build tower structures for wireless service providers at locations that 
they have identified. Under these arrangements, we retain ownership of the tower structure and the exclusive right to co-locate 
additional tenants. When we construct tower structures in locations chosen by us, we utilize our knowledge of our customers’ network 
requirements to identify locations where we believe multiple wireless service providers need, or will need to locate antennas to meet 
capacity or service demands. We seek to identify attractive locations for new tower structures and complete pre-construction 
procedures necessary to secure the site concurrently with our leasing efforts. We generally will have at least one signed tenant lease 
for each new build tower structure on the day that it is completed and expect that some will have multiple tenants.  

Site Development Services  

Our site development business, which is conducted in the United States only, is complementary to our site leasing business and 

provides us the ability to keep in close contact with the wireless service providers that generate substantially all of our site leasing 
revenue and to capture revenues that are generated by our site leasing activities, such as antenna and equipment installation at our 
tower locations.  Site development services revenues are earned primarily from providing a full range of end to end services to 
wireless service providers or companies providing development or project management services to wireless service providers. Our 
services include: (1) network pre-design; (2) site audits; (3) identification of potential locations for towers and equipment on existing 
infrastructure; (4) support in leasing of the location; (5) obtaining zoning approvals and permits; (6) tower and related site 
construction; (7) antenna installation; and (8) radio equipment installation, commissioning, and maintenance. We provide site 
development services at our towers and at towers owned by others on a local basis, through market and regional offices. These market 
offices are responsible for all site development operations. 

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For financial information about our operating segments, please see Note 18 of our Consolidated Financial Statements included 

in this Form 10-K.  

Industry Developments 

We believe that growing wireless data traffic will require wireless service providers to continue to increase the capacity of their 

networks, and we believe that the continued capacity increases will require our customers to install equipment at new sites and add 
new equipment at existing sites. We expect that the wireless communications industry will continue to experience growth as a result of 
the following trends:  

•  Consumers are increasing their demand for wireless connectivity due to the adoption of bandwidth-intensive wireless data 
applications, such as video, social networking and enhanced web browsing. As a result, according to industry estimates, 
global mobile data traffic will grow at an approximately 46% compound annual growth rate from 2016 to 2021 and will 
grow at a rate three times faster than non-mobile data traffic over the same period.  

•  The velocity of spectrum development is expected to remain dynamic as carriers continue to deploy new bands and 

optimize bands that are currently in service, both of which activities we expect will require carriers to install equipment at 
new sites and add new equipment at existing sites.  For example, recent spectrum auctions and a new network for first 
responders that is being developed by AT&T for the First Responder Network Authority (“FirstNet”), an independent 
authority within the Department of Commerce, are expected to contribute to growth in the upcoming years. 

•  Consumers list network quality as a key contributor when terminating or changing service. To remain competitive and to 
decrease subscriber churn rates, wireless carriers have made substantial capital investments into their wireless networks to 
improve service quality and expand coverage. We expect wireless carriers to continue to expend capital to differentiate their 
product offerings.  

We believe that the world-wide wireless industry will continue to grow and is reasonably well-capitalized, highly competitive 

and focused on quality and advanced services. Therefore, we expect that we will see a multi-year trend of additional demand for tower 
space from our customers, which we believe will translate into steady leasing growth for us.  

Business Strategy 

Our primary strategy is to continue to focus on expanding our site leasing business. The long-term and repetitive nature of the 

revenue stream of our site leasing business makes it less volatile than our site development business, which is more cyclical. By 
focusing on our site leasing business, we believe that we can maintain a stable, recurring cash flow stream and reduce our exposure to 
cyclical changes in customer spending. Key elements of our strategy include:  

Maximizing Use of Tower Capacity. We generally have constructed or acquired towers that accommodate multiple tenants and a 

majority of our towers are high capacity tower structures. Most of our towers have significant capacity available for additional 
antennas, and we believe that increased use of our towers can generate additional lease revenue and be achieved at a low incremental 
cost. We measure the available capacity of our existing sites to support additional tenants by assessing several factors, including tower 
height, tower type, wind loading, environmental conditions, existing equipment on the tower and zoning and permitting regulations in 
effect in the jurisdiction where the tower is located. We actively market space on our towers through our internal sales force. As of 
December 31, 2017, we had an average of 1.7 tenants per tower structure. 

Disciplined Growth of our Tower Portfolio. We believe that our tower operations are highly scalable. Consequently, we believe 

that we are able to materially increase our tower portfolio without proportionately increasing selling, general, and administrative 
expenses. We intend to continue to grow our tower portfolio, domestically and internationally, through tower acquisitions and the 
construction of new tower structures. In connection with our international expansion, we have targeted select international markets 
that we believe have relatively stable political environments and a growing wireless communications industry. We intend to use a 
portion of our available cash from operating activities and available liquidity, including borrowings, to build and/or acquire new 
towers at prices that we believe will be accretive to our shareholders both in the short and long term and which allow us to maintain 
our long-term target leverage ratios.  

Capitalizing on our Scale and Management Experience. We are a large owner, operator and developer of towers, with 
substantial capital, human, and operating resources. We have been developing towers for wireless service providers in the U.S. since 
1989 and owned and operated towers for ourselves since 1997. We believe our size, experience, capabilities, and resources make us a 
preferred partner for wireless service providers both in the U.S. and internationally. Our management team has extensive experience in 
site leasing and site development, with some of the longest tenures in the tower and site development industries. We believe that our 

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industry expertise and strong relationships with wireless service providers will allow us to expand our position as a leading provider of 
site leasing and site development services.  

Controlling our Underlying Land Positions. We have purchased and/or entered into perpetual easements or long-term leases for 
the land that underlies our tower structures and intend to continue to do so, to the extent available at commercially reasonable prices. 
We believe that these purchases, perpetual easements, and/or long-term leases will increase our margins, improve our cash flow from 
operations, and minimize our exposure to increases in ground lease rents in the future. As of December 31, 2017, approximately 70% 
of our tower structures were located on land that we own or control for more than 20 years and the average remaining life under our 
ground leases, including renewal options under our control, was 33 years. As of December 31, 2017, approximately 6.9% of our tower 
structures had ground leases maturing in the next 10 years.  

Using our Local Presence to Build Strong Relationships with Major Wireless Service Providers. Given the nature of towers as 

location-specific communications facilities, we believe that substantially all of what we do is done best locally. Consequently, we 
have a broad field organization that allows us to develop and capitalize on our experience, expertise and relationships in each of our 
local markets which in turn enhances our customer relationships. We are seeking to replicate this operating model internationally. Due 
to our presence in local markets, we believe we are well positioned to capture additional site leasing business and new tower build 
opportunities in our markets and identify and participate in site development projects across our markets.  

Customers 

Since commencing operations, we have leased tower space and performed site development services for all of the large U.S. 
wireless service providers. In both our site leasing and site development businesses, we work with large national providers and smaller 
regional, local, or private operators. Internationally, we lease tower space to all the major service providers in Canada, Central 
America, and South America. 

We depend on a relatively small number of customers for our site leasing and site development revenues. The following 

customers represented at least 10% of our total revenues during the last three years:  

Percentage of Total Revenues 

AT&T Wireless 

T-Mobile 

Verizon Wireless 

Sprint 

For the year ended December 31,  

2017 

2016 

2015 

25.0% 

16.5% 

15.2% 

15.1% 

25.7% 

17.0% 

15.2% 

16.1% 

24.2% 

16.0% 

13.8% 

19.6% 

In addition to the Big 4 wireless carriers (AT&T, T-Mobile, Sprint, and Verizon Wireless), we have also provided services or 
leased space to a number of customers including:  

Cable & Wireless 
Cellular South 
Claro 
CNT 
Digicel 

Ericsson, Inc. 
ICE 
NII Holdings 
Nokia, Inc.  
Mastec 

Oi S.A. 
SouthernLinc 
TIM 
Telefonica 
U.S. Cellular 

Sales and Marketing  

Our sales and marketing goals are to:  

• 

• 

use existing relationships and develop new relationships with wireless service providers to lease antenna space on and sell 
related services with respect to our owned or managed towers, enabling us to grow our site leasing business; and 

successfully bid and win those site development services contracts that will contribute to our operating margins and/or 
provide a financial or strategic benefit to our site leasing business.  

We approach sales on a company-wide basis, involving many of our employees. We have a dedicated sales force that is 

supplemented by members of our executive management team. Our dedicated salespeople are based regionally as well as in our 

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corporate office. We also rely on our vice presidents, general managers, and other operations personnel to sell our services and 
cultivate customers. Our strategy is to delegate sales efforts by geographic region or to those employees of ours who have the best 
relationships with our customers. Most wireless service providers have national corporate headquarters with regional and local offices. 
We believe that wireless service providers make most decisions for site development and site leasing services at the regional and local 
levels with input from their corporate headquarters. Our sales representatives work with wireless service provider representatives at 
the regional and local levels and at the national level when appropriate. Our sales staff’s compensation is heavily weighted to 
incentive-based goals and measurements.  

Competition  

Domestic Site Leasing – In the U.S., our primary competitors for our site leasing activities are (1) large independent tower 
companies including American Tower Corporation and Crown Castle International, (2) a large number of regional independent tower 
owners, (3) wireless service providers that own and operate their own towers and lease, or may in the future decide to lease, antenna 
space to other providers, and (4) alternative facilities such as rooftops, outdoor and indoor distributed antenna system (“DAS”) 
networks, billboards, utility poles, and electric transmission towers. We believe that tower location and capacity, quality of service, 
density within a geographic market and, to a lesser extent, price historically have been and will continue to be the most significant 
competitive factors affecting the site leasing business. 

International Site Leasing – Internationally, our competition consists of wireless service providers that own and operate their 

own tower networks, large national and regional independent tower companies, and alternative facilities such as rooftop, outdoor and 
indoor DAS networks, billboards, utility poles, and electric transmission towers. 

Site Development – The site development business is competitive and price sensitive. We believe that the majority of our 
competitors in the U.S. site development business operate within local region and market areas, while some firms offer their services 
nationally. The market includes participants from a variety of market segments offering individual, or combinations of, competing 
services. The field of competitors includes site development consultants, zoning consultants, real estate firms, construction companies, 
tower owners/managers, telecommunications equipment vendors, which provide end-to-end site development services through 
multiple subcontractors, and wireless service providers’ internal staff. We believe that providers base their decisions for site 
development services on a number of criteria, including company experience, price, track record, local reputation, geographic reach, 
and time for completion of a project.  

Employees  

Our corporate offices are located in our headquarters in Boca Raton, Florida. We also have employees located in our 

international, regional, and local offices. As of December 31, 2017, we had 1,291 employees of which 303 were based outside of the 
U.S. and its territories. We consider our employee relations to be good. 

Regulatory and Environmental Matters 

Federal Regulations. In the U.S., which accounted for 80.6% of our total site leasing revenue for the year ended December 31, 

2017, both the Federal Communications Commission (the “FCC”) and the Federal Aviation Administration (the “FAA”) regulate 
towers. Many FAA requirements are implemented in FCC regulations. These regulations govern the construction, lighting, and 
painting or other marking of towers, as well as the maintenance, inspection, and record keeping related to towers, and may, depending 
on the characteristics of particular towers, require prior approval and registration of towers before they may be constructed, altered or 
used. Wireless communications equipment and radio or television stations operating on towers are separately regulated and may 
require independent customer licensing depending upon the particular frequency or frequency band used. In addition, any applicant for 
an FCC tower structure registration (through the FCC’s Antenna Structure Registration System) must certify that, consistent with the 
Anti-Drug Abuse Act of 1988, neither the applicant nor its principals are subject to a denial of federal benefits because of a conviction 
for the possession or distribution of a controlled substance. New tower construction also requires approval from the state or local 
governing authority for the proposed site: compliance with the National Environmental Policy Act (“NEPA”); compliance with the 
National Historic Preservation Act (“NHPA”); compliance with the Endangered Species Act (“ESA”); and may require notification to 
the FAA. 

Pursuant to the requirements of the Communications Act of 1934, as amended, the FCC, in conjunction with the FAA, has 

developed standards to consider proposals involving new or modified towers. These standards mandate that the FCC and the FAA 
consider the height of the proposed tower, the relationship of the tower to existing natural or man-made obstructions, and the 
proximity of the tower to runways and airports. Proposals to construct or to modify existing towers above certain heights must be 
reviewed by the FAA to ensure the structure will not present a hazard to air navigation. The FAA may condition its issuance of a no-

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hazard determination upon compliance with specified lighting and/or painting requirements. Towers that meet certain height and 
location criteria must also be registered with the FCC. A tower that requires FAA clearance will not be registered by the FCC until it 
is cleared by the FAA. Upon registration, the FCC may also require special lighting and/or painting. Owners of wireless 
communications towers may have an obligation to maintain painting and lighting or other marking in conformance with FAA and 
FCC regulations. Tower owners and licensees that operate on those towers also bear the responsibility of monitoring any lighting 
systems and notifying the FAA of any lighting outage or malfunction.  

Owners and operators of towers may be subject to, and therefore must comply with, environmental laws, including NEPA, 

NHPA and ESA. Any licensed radio facility on a tower is subject to environmental review pursuant to the NEPA, among other 
statutes, which requires federal agencies to evaluate the environmental impact of their decisions under certain circumstances. The FCC 
has issued regulations implementing the NEPA. These regulations place responsibility on applicants to investigate potential 
environmental effects of their operations and to disclose any potential significant effects on the environment in an environmental 
assessment prior to constructing or modifying a tower and prior to commencing certain operations of wireless communications or 
radio or television stations from the tower. In the event the FCC determines the proposed structure or operation would have a 
significant environmental impact based on the standards the FCC has developed, the FCC would be required to prepare an 
environmental impact statement, which will be subject to public comment. This process could significantly delay the registration of a 
particular tower.  

We generally indemnify our customers against any failure to comply with applicable regulatory standards relating to the 
construction, modification, or placement of towers. Failure to comply with the applicable requirements may lead to civil penalties.  

The Telecommunications Act of 1996 amended the Communications Act of 1934 by preserving state and local zoning 

authorities’ jurisdiction over the construction, modification, and placement of towers. The law, however, limits local zoning authority 
by prohibiting any action that would discriminate among different providers of personal wireless services or ban altogether the 
construction, modification or placement of radio communication towers. Finally, the Telecommunications Act of 1996 requires the 
federal government to help licensees for wireless communications services gain access to preferred sites for their facilities. This may 
require that federal agencies and departments work directly with licensees to make federal property available for tower facilities.  

As an owner and operator of real property, we are subject to certain environmental laws that impose strict, joint and several 
liability for the cleanup of on-site or off-site contamination and related personal injury or property damage. We are also subject to 
certain environmental laws that govern tower placement and may require pre-construction environmental studies. Operators of towers 
must also take into consideration certain radio frequency (“RF”) emissions regulations that impose a variety of procedural and 
operating requirements. Certain proposals to operate wireless communications and radio or television stations from tower structures 
are also reviewed by the FCC to ensure compliance with requirements relating to human exposure to RF emissions. Exposure to high 
levels of RF energy can produce negative health effects. The potential connection between low-level RF energy and certain negative 
health effects, including some forms of cancer, has been the subject of substantial study by the scientific community in recent years. 
We believe that we are in substantial compliance with and we have no material liability under any applicable environmental laws. 
These costs of compliance with existing or future environmental laws and liability related thereto may have a material adverse effect 
on our prospects, financial condition or results of operations.  

State and Local Regulations. Most states regulate certain aspects of real estate acquisition, leasing activities, and construction 
activities. Where required, we conduct the site acquisition portions of our site development services business through licensed real 
estate brokers’ agents, who may be our employees or hired as independent contractors, and conduct the construction portions of our 
site development services through licensed contractors, who may be our employees or independent contractors. Local regulations 
include city and other local ordinances, zoning restrictions and restrictive covenants imposed by community developers. These 
regulations vary greatly from jurisdiction to jurisdiction, but typically require tower owners to obtain approval from local officials or 
community standards organizations, or certain other entities prior to tower construction and establish regulations regarding 
maintenance and removal of towers. In addition, many local zoning authorities require tower owners to post bonds or cash collateral to 
secure their removal obligations. Local zoning authorities generally have been unreceptive to construction of new towers in their 
communities because of the height and visibility of the towers, and have, in some instances, instituted moratoria.  

International. Regulatory regimes outside of the U.S. and its territories vary by country and locality; however, these regulations 

typically require tower owners and/or licensees to obtain approval from local officials or government agencies prior to tower 
construction or modification or the addition of a new antenna to an existing tower. Additionally, some regulations include ongoing 
obligations regarding painting, lighting, and maintenance. Our international operations may also be subject to limitations on foreign 
ownership of land in certain areas. Based on our experience to date, these regimes have been similar to, but not more rigorous, 
burdensome or comprehensive than, those in the U.S. Non-compliance with such regulations may lead to monetary penalties or 
deconstruction orders. Our international operations are also subject to various regulations and guidelines regarding employee relations 

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and other occupational health and safety matters. As we expand our operations into additional international geographic areas, we will 
be subject to regulations in these jurisdictions.  

Backlog  

Backlog related to our site leasing business consists of lease agreements and amendments, which have been signed, but have not 

yet commenced. As of December 31, 2017, we had 1,205 new leases and amendments which had been executed with customers but 
which had not begun generating revenue. These leases and amendments will contractually provide for approximately $9.2 million of 
annual revenue. By comparison, as of December 31, 2016, we had 955 new leases and amendments which had been executed with 
customers but which had not begun generating revenue. These leases and amendments contractually provided for approximately $8.7 
million of annual revenue.  

Our backlog for site development services consists of the value of work that has not yet been completed under executed 
contracts. As of December 31, 2017, we had approximately $47.5 million of contractually committed revenue as compared to 
approximately $26.0 million as of December 31, 2016.  

Availability of Reports and Other Information  

SBA Communications Corporation was incorporated in the State of Florida in March 1997. Our corporate website is 

www.sbasite.com. We make available, free of charge, access to our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, 
Current Reports on Form 8-K, Proxy Statement on Schedule 14A and amendments to those materials filed or furnished pursuant to 
Section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), on our website under “Investor 
Relations – Reports and Results – SEC Filings,” as soon as reasonably practicable after we file electronically such material with, or 
furnish it to, the United States Securities and Exchange Commission (the “Commission”).  

 ITEM 1A. RISK FACTORS   

Risks Related to Our Business  

If our wireless service provider customers combine their operations to a significant degree, our future operating results, ability to 
service our indebtedness, and stock price could be adversely affected.  

Significant consolidation among our wireless service provider customers may result in our customers failing to renew existing 

leases for tower space or reducing future capital expenditures in the aggregate because their existing networks and expansion plans 
may overlap or be very similar, or acquired technologies may be discontinued. In connection with the combinations of Verizon 
Wireless and ALLTEL (to form Verizon Wireless), Cingular and AT&T Wireless (to form AT&T Mobility) and Sprint PCS and 
Nextel (to form Sprint), the combined companies have rationalized duplicative parts of their networks, and, in the case of Sprint, the 
Nextel iDEN network was discontinued, which has led and may continue to lead to the non-renewal of certain leases on our towers. 
During 2013, Sprint acquired Clearwire Communications and T-Mobile acquired MetroPCS, and in 2014, AT&T acquired Leap 
Wireless (Cricket Wireless). These consolidations have led and may continue to lead to non-renewal of certain of our tower leases. If 
our wireless service provider customers continue to consolidate as a result of, among other factors, limited wireless spectrum for 
commercial use in the U.S., these consolidations could significantly impact the number of tower leases that are not renewed or the 
number of new leases that our wireless service provider customers require to expand their networks, which could materially and 
adversely affect our future operating results and our ability to service our indebtedness. These risks could be exacerbated due to 
changes in governmental policy that may favor industry consolidation.  

In addition, the market price of our Class A common stock may be affected by the economic and market perception of the 
announcement or consummation of wireless service provider customer consolidations and their impact on our future operating results. 

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We have a substantial level of indebtedness which may have an adverse effect on our business or limit our ability to take advantage 
of business, strategic or financing opportunities.  

As indicated below, we have and will continue to have a significant amount of indebtedness relative to our deficit. The 

following table sets forth our total principal amount of debt and shareholders’ deficit as of December 31, 2017 and 2016.  

As of December 31, 

2017 

2016 

(in thousands) 

Total principal amount of indebtedness 

Shareholders' deficit 

  $ 

  $ 

 9,405,000 

$ 

 8,875,000 

 (2,599,114)  $ 

 (1,995,921) 

Our substantial level of indebtedness increases the possibility that we may be unable to generate cash sufficient to pay the 
principal, interest, or other amounts due on our indebtedness. Subject to certain restrictions under our existing indebtedness, we and 
our subsidiaries may also incur significant additional indebtedness in the future, some of which may be secured debt. This may have 
the effect of increasing our total leverage. For example, on October 13, 2017, we issued $750.0 million of unsecured senior notes, 
which contributed to the $530 million increase of our total indebtedness during 2017. 

As a consequence of our indebtedness, (1) demands on our cash resources may increase, (2) we are subject to restrictive 
covenants that further limit our financial and operating flexibility and (3) we may choose to institute self-imposed limits on our 
indebtedness based on certain considerations including market interest rates, our relative leverage and our strategic plans. For 
example, as a result of our substantial level of indebtedness and the uncertainties arising in the credit markets and the U.S. economy:  

• 

• 

• 

• 

• 

• 

• 

we may be more vulnerable to general adverse economic and industry conditions;  

we may have to pay higher interest rates upon refinancing or on our variable rate indebtedness if interest rates rise, 
thereby reducing our cash flows;  

we may find it more difficult to obtain additional financing to fund future working capital, capital expenditures and other 
general corporate requirements that would be in our best long-term interests;  

we may be required to dedicate a substantial portion of our cash flow from operations to the payment of principal and 
interest on our debt, reducing the available cash flow to fund other investments, including share repurchases, tower 
acquisition and new build capital expenditures, or to satisfy our REIT distribution requirements;  

we may have limited flexibility in planning for, or reacting to, changes in our business or in the industry;  

we may have a competitive disadvantage relative to other companies in our industry that are less leveraged; and  

we may be required to sell debt or equity securities or sell some of our core assets, possibly on unfavorable terms, in order 
to meet payment obligations.  

These restrictions could have a material adverse effect on our business by limiting our ability to take advantage of financing, 

new tower development, mergers and acquisitions, share repurchases, or other opportunities and to satisfy our REIT distribution 
requirements.  

In addition, fluctuations in market interest rates or changes in central bank monetary policy may increase interest expense 

relating to our floating rate indebtedness, which we expect to incur pursuant to our Revolving Credit Facility and Term Loans, and 
may make it difficult to refinance our existing indebtedness at a commercially reasonable rate or at all. There is no guarantee that the 
future refinancing of our indebtedness will have fixed interest rates or that interest rates on such indebtedness will be equal to or lower 
than the rates on our current indebtedness.  

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Our variable rate indebtedness and refinancing obligations subject us to interest rate risk, which could cause our debt service 
obligations to increase significantly.  

An increase in market interest rates would increase our interest expense arising on our existing and future floating rate 

indebtedness or upon refinancing of our fixed rate debt. Pursuant to the terms of our Credit Agreement, the interest rate that we pay on 
indebtedness incurred under the Revolving Credit Facility or Term Loans varies based on a fixed margin over either a base rate or a 
Eurodollar rate which references the LIBOR rate. As a result, we are exposed to interest rate risk. Interest rates, including LIBOR, 
have recently increased and are expected to continue to increase in future periods. If interest rates continue to increase, our debt 
service obligations on the variable rate indebtedness will increase even though the amount borrowed remained the same, and our net 
income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. Furthermore, in an 
environment of increasing interest rates, it is likely that any future refinancing of our indebtedness will be either at fixed interest rates 
higher than our current fixed interest rates or at variable rates. In the future, we may enter into interest rate swaps that involve the 
exchange of floating for fixed rate interest payments in order to reduce interest rate volatility. However, we may not maintain interest 
rate swaps with respect to all of our variable rate indebtedness, and any swaps we enter into may not fully mitigate our interest rate 
risk. We currently have no interest rate swaps. 

We depend on a relatively small number of customers for most of our revenue, and the loss, consolidation or financial instability of 
any of our significant customers may materially decrease our revenue and adversely affect our financial condition. 

We derive a significant portion of our revenue from a small number of customers. Consequently, a reduction in demand for site 

leasing, reduced future capital expenditures on the networks, or the loss, as a result of bankruptcy, merger with other customers of 
ours or otherwise, of any of our largest customers could materially decrease our revenue and have an adverse effect on our growth.  

On June 20, 2016, Oi, S.A. (“Oi”), our largest customer in Brazil, filed a petition for judicial reorganization in Brazil. For the 

year ended December 31, 2017, Oi comprised approximately 7.5% of our total site leasing revenue. While we initially recorded a 
$16.5 million bad debt provision during the second quarter of 2016 relating to amounts owed or potentially owed by Oi as of the 
petition date, since that date we have continued to do business with Oi in the ordinary course. On January 8, 2018, Oi’s reorganization 
plan was approved by the Brazilian courts and Oi is expected to resolve all its pre-petition obligations in accordance with the terms of 
the plan. However, if Oi is unable to successfully fulfill its reorganization obligations or cannot operate its business on a go-forward 
basis, it could adversely affect our future results of operation. 

The following is a list of significant customers (representing at least 10% of revenue in any of the last three years) and the 

percentage of our total revenues for the specified time periods derived from these customers: 

Percentage of Total Revenues 

AT&T Wireless 

T-Mobile 

Verizon Wireless 

Sprint 

For the year ended December 31,  

2017 

2016 

2015 

25.0% 

16.5% 

15.2% 

15.1% 

25.7% 

17.0% 

15.2% 

16.1% 

24.2% 

16.0% 

13.8% 

19.6% 

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We also have client concentrations with respect to revenues in each of our financial reporting segments: 

Percentage of Domestic Site Leasing Revenue 

AT&T Wireless 

T-Mobile 

Verizon Wireless 

Sprint 

Percentage of International Site Leasing Revenue 

Oi S.A. 

Telefonica 

Claro 

Percentage of Site Development Revenue 

T-Mobile 

Sprint 

Verizon Wireless  

Nokia, Inc.  

Ericsson, Inc. 

For the year ended December 31,  

2017 

2016 

2015 

32.7% 

19.7% 

19.0% 

18.9% 

32.7% 

19.6% 

18.2% 

19.8% 

31.9% 

19.0% 

16.3% 

22.3% 

For the year ended December 31,  

2017 

2016 

2015 

42.2% 

25.7% 

10.0% 

43.9% 

26.4% 

9.4% 

48.8% 

24.7% 

8.0% 

For the year ended December 31,  

2017 

2016 

2015 

26.9% 

12.9% 

12.8% 

10.1% 

7.4% 

28.4% 

11.7% 

16.5% 

7.1% 

5.0% 

17.6% 

28.5% 

14.8% 

6.3% 

15.3% 

We derive revenue through numerous site leasing contracts and site development contracts. Each site leasing contract relates to 
the lease of space at an individual tower and is generally for an initial term of five to ten years in the U.S. and Canada, and renewable 
for five 5-year periods at the option of the tenant. Site leasing contracts in our Central American and South American markets 
typically have an initial term of ten years with multiple five year renewal periods. However, if any of our significant site leasing 
customers were to experience financial difficulty, substantially reduce their capital expenditures or reduce their dependence on leased 
tower space and fail to renew their leases with us, our revenues, future revenue growth and results of operations would be adversely 
affected. In addition, many of our tenants in our international markets are subsidiaries of global telecommunications companies. These 
subsidiaries may not have the explicit or implied financial support of their parent entities, which may impact their creditworthiness.  

Our site development customers engage us on a project-by-project basis, and a customer can generally terminate an assignment 
at any time without penalty. In addition, a customer’s need for site development services can decrease, and we may not be successful 
in establishing relationships with new customers. Furthermore, our existing customers may not continue to engage us for additional 
projects.  

Increasing competition may negatively impact our ability to grow our communication site portfolio long term.  

We intend to continue growing our tower portfolio, domestically and internationally, through acquisitions and new builds. Our 

ability to meet our growth targets significantly depends on our ability to build or acquire existing towers that meet our investment 
requirements. Traditionally, our acquisition strategy has focused on acquiring towers from smaller tower companies, independent 
tower developers and wireless service providers. However, as a result of consolidation in the tower industry, there are fewer of these 
mid-sized tower transactions available in the U.S. and there is more competition to acquire existing towers. Increased competition for 
acquisitions may result in fewer acquisition opportunities for us, higher acquisition prices, and increased difficulty in negotiating and 
consummating agreements to acquire such towers. For example, in 2017, we passed on more U.S. acquisitions than we did in 2016 
due to asset quality, price, or lease terms. Furthermore, to the extent that the tower acquisition opportunities are for significant tower 
portfolios, many of our competitors are significantly larger and have greater financial resources than we do.  Finally, laws regulating 
competition, domestically and internationally, may limit our ability to acquire certain portfolios.  As a result of these risks, the cost of 

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acquiring these towers may be higher than we expect or we may not be able to meet our annual and long-term tower portfolio growth 
targets. If we are not able to successfully address these challenges, we may not be able to materially increase our tower portfolio in the 
long-term through acquisitions.   

Our ability to build new towers is dependent upon the availability of sufficient capital to fund construction, our ability to locate, 
and acquire at commercially reasonable prices, attractive locations for such towers and our ability to obtain the necessary zoning and 
permits. Local regulations, including municipal or local ordinances, zoning restrictions and restrictive covenants imposed by 
community developers, vary greatly, but typically require antenna tower and structure owners to obtain approval from local officials 
or community standards organizations prior to tower or structure construction or modification.  With respect to our international new 
builds, our tower construction may be delayed or halted as a result of local zoning restrictions, inconsistencies between laws or other 
barriers to construction in international markets. Due to these risks, it may take longer to complete our new tower builds, domestically 
and internationally, than anticipated, and the costs of constructing these towers may be higher than we expect or we may not be able to 
add as many towers as we had planned in 2018. If we are not able to increase our new build tower portfolio as anticipated, it could 
negatively impact our ability to achieve our financial goals.  

Increasing competition in the tower industry may create pricing pressures or result in non-renewals that may materially and 
adversely affect us.  

Our industry is highly competitive, and our wireless service provider customers sometimes have alternatives for leasing antenna 

space. However, we believe that tower location and capacity, quality of service, density within a geographic market and, to a lesser 
extent, price historically have been and will continue to be the most significant competitive factors affecting the site leasing business. 
However competitive pricing pressures for tenants on towers from competitors could materially and adversely affect our lease 
rates.  In addition, the increasing number of towers (1) may provide customers the ability to relocate their antennae to other towers if 
they determine that a more suitable, efficient or economic location exists, which could lead to non-renewal of existing leases, or (2) 
may adversely impact our ability to enter into new customer leases. Any of these factors could materially and adversely affect our 
growth rate and our future operations. 

In the site leasing business, we compete with:  

• 

• 

• 

wireless service providers that own and operate their own towers and lease, or may in the future decide to lease, antenna 
space to other providers;  

national and regional tower companies who may be substantially larger and have greater financial resources than we do; 
and 

alternative facilities such as rooftops, outdoor and indoor DAS networks, billboards and electric transmission towers.  

The site development segment of our industry is also competitive. There are numerous large and small companies that offer one 

or more of the services offered by our site development business. As a result of this competition, margins in this segment may come 
under pressure. Many of our competitors have lower overhead expenses and therefore may be able to provide services at prices that we 
consider unprofitable. If margins in this segment were to decrease, our consolidated revenues and our site development segment 
operating profit could be adversely affected.  

A slowdown in demand for wireless communications services or for tower space could materially and adversely affect our future 
growth and revenues, and we cannot control that demand.  

Additional revenue growth on our towers other than through contractual escalators comes directly from additional investment 
by our wireless service provider customers in their networks. If consumers significantly reduce their minutes of use or data usage, or 
fail to widely adopt and use wireless data applications, our wireless service provider customers could experience a decrease in demand 
for their services. Regardless of consumer demand, each wireless service provider must have substantial capital resources and 
capabilities to build out their wireless networks, including licenses for spectrum. In addition, our wireless service customers have 
engaged in increased use of network sharing, roaming or resale arrangements. As a result of all of the above, wireless service 
providers may scale back their business plans or otherwise reduce their spending, which could materially and adversely affect demand 
for our tower space and our wireless communications services business, which could have a material adverse effect on our business, 
results of operations and financial condition. 

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Our international operations are subject to economic, political and other risks that could materially and adversely affect our 
revenues or financial position.  

Our current business operations in Canada, Central America, and South America, and our expansion into any other international 
markets in the future, could result in adverse financial consequences and operational problems not typically experienced in the United 
States. The consolidated revenues generated by our international operations were approximately 18.2% during the year ended 
December 31, 2017, and we anticipate that our revenues from our international operations will continue to grow in the future. 
Accordingly, our business is and will in the future be subject to risks associated with doing business internationally, including:  

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

changes in a specific country’s or region’s political or economic conditions;  

laws and regulations that tax or otherwise restrict repatriation of earnings or other funds or otherwise limit distributions of 
capital;  

laws and regulations that dictate how we operate our towers and conduct business, including zoning, maintenance and 
environmental matters, and laws related to ownership of real property;  

laws and regulations governing our employee relations, including occupational health and safety matters;  

changes to existing or new domestic or international tax laws or fees directed specifically at the ownership and operation 
of towers, which may be applied and enforced retroactively;  

expropriation and governmental regulation restricting foreign ownership or requiring reversion or divestiture;  

laws effecting telecommunications infrastructure including the sharing of such infrastructure;  

restriction or revocation of spectrum licenses;  

our ability to comply with, and the costs of compliance with, anti-bribery laws such as the Foreign Corrupt Practices Act 
and similar local anti-bribery laws;  

our ability to compete with owners and operators of wireless towers that have been in the international market for a longer 
period of time than we have;  

uncertainties regarding legal or judicial systems, including inconsistencies between and within laws, regulations and 
decrees, and judicial application thereof, and delays in the judicial process;  

health or similar issues, such as a pandemic or epidemic;  

difficulty in recruiting and retaining trained personnel; and  

language and cultural differences.  

If we are unable to protect our rights to the land under our towers, it could adversely affect our business and operating results.  

Our real property interests relating to the land under our tower structures consist primarily of leasehold and sub-leasehold 
interests, fee interests, easements, licenses, rights-of-way, and other similar interests. From time to time, we experience disputes with 
landowners regarding the terms of the agreements for the land under our tower structures, which can affect our ability to access and 
operate such towers. Further, landowners may not want to renew their agreements with us, they may lose their rights to the land, or 
they may transfer their land interests to third parties, including ground lease aggregators and our competitors, which could affect our 
ability to renew agreements on commercially viable terms or at all. In addition, the land underlying the 2,113 towers we acquired in 
2013 from Oi, one of Brazil’s largest telecommunications providers, is subject to a concession from the Federal Republic of Brazil 
that expires in 2025.  At the end of the term, the Brazilian government will have the right to (i) renew the concession upon newly 
negotiated terms or (ii) terminate the concession and take possession of the land and the tower on such land.  Although Oi has entered 
into a non-terminable lease with us for 35 years, if the concession is not renewed, our site leasing revenue from co-located tenants 

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would terminate prior to the end of such lease. For the year ended December 31, 2017, we generated 11.5% of our total international 
site leasing revenue from these 2,113 towers of which 7.3% related to Oi and 4.2% represented revenue from co-located tenants. 

As of December 31, 2017, the average remaining life under our ground leases, including renewal options under our control, was 
approximately 33 years, and approximately 6.9% of our tower structures have ground leases maturing in the next 10 years.  Failure to 
protect our rights to the land under our towers may have a material adverse effect on our business, results of operations or financial 
condition. 

New technologies or network architecture or changes in a customer’s business model may reduce demand for our wireless 
infrastructure or negatively impact our revenues. 

Improvements or changes in the efficiency, architecture, and design of wireless networks or changes in a wireless service 
provider customer’s business model may reduce the demand for our wireless infrastructure. In addition, as customers deploy increased 
capital to the development and implementation of new technologies, they may allocate less of their budgets to lease space on our 
towers. For example, new technologies that may promote network sharing, joint development, or resale agreements by our wireless 
service provider customers, such as signal combining technologies or network functions virtualization, may reduce the need for our 
wireless infrastructure. In addition, other technologies and architectures, such as WiFi, DAS, femtocells, other small cells, or satellite 
(such as low earth orbiting) and mesh transmission systems may, in the future, serve as substitutes for, or alternatives to, the 
traditional macro site cellular architecture that is the basis of substantially all of our site leasing business. In addition, new 
technologies that enhance the range, efficiency, and capacity of wireless equipment could reduce demand for our wireless 
infrastructure. Further, a customer may decide to no longer outsource wireless infrastructure or otherwise change its business model. 
Any significant reduction in demand for our wireless infrastructure resulting from new technologies or new architectures or changes in 
a customer’s business model may negatively impact our revenues or otherwise have a material adverse effect on us.   

Currency fluctuations may negatively affect our results of operations. 

Our operations in Central America and Ecuador are primarily denominated in U.S. Dollars. In Brazil, Canada, Chile, and 
Colombia, significantly all of our revenue, expenses, and capital expenditures, including tenant leases, ground leases, and other tower-
related expenses are denominated in local currency. In Argentina and Peru, our revenue, expenses, and capital expenditures, including 
tenant leases, ground leases, and other tower-related expenses are dominated in a mix of local currency and U.S. dollars. Our foreign 
currency denominated revenues and expenses are translated into U.S. dollars at average exchange rates for inclusion in our 
consolidated financial statements.   

For the year ended December 31, 2017, approximately 18.6% of our total cash site leasing revenue was generated by our 

international operations, of which 13.6% was generated in non-U.S. dollar currencies, including 12.7% which was denominated in 
Brazilian Reais. The exchange rates between our foreign currencies and the U.S. Dollar have fluctuated significantly in recent years 
and may continue to do so in the future.  For example, the Brazilian Real has historically been subject to substantial volatility and 
strengthened 8.7% when comparing the average rate for the years ended December 31, 2017 and 2016. This trend has affected, and 
may in the future continue to affect, our reported results of operations. 

Changes in exchange rates between these local currencies and the U.S. dollar will affect the recorded levels of site leasing 
revenue, segment operating profit, assets and/or liabilities. Volatility in foreign currency exchange rates can also affect our ability to 
plan, forecast and budget for our international operations and expansion efforts.   

Furthermore, we have intercompany loan agreements which permit one of our Brazilian entities to borrow amounts up to $1,250 
million. As of December 31, 2017, the aggregate outstanding balance under these agreements was $560.9 million. In accordance with 
ASC 830, we remeasure foreign denominated intercompany loans with the corresponding change in the balance being recorded in 
Other income (expense), net in our Consolidated Statements of Operations as settlement is anticipated or planned in the foreseeable 
future. Consequently, if the U.S. Dollar strengthens against the Brazilian Real, our results of operations would be adversely affected. 
For the years ended December 31, 2017 and 2016, we recorded a $8.8 million loss and a $90.0 million gain, respectively, on the 
remeasurement of the intercompany loan due to changes in foreign currency exchange rates. 

We may not be able to fully recognize the anticipated benefits of towers that we acquire.  

A key element of our growth strategy is to increase our tower portfolio through acquisitions.  We rely on our due diligence of 
the towers and the representations and financial records of the sellers and other third parties to establish the anticipated revenues and 
expenses and whether the acquired towers will meet our internal guidelines for current and future potential returns. In addition, we 
may not always have the ability to analyze and verify all information regarding title, access and other issues regarding the land 

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underlying acquired towers.  This is particularly true in our international acquisitions of towers from wireless service providers. To the 
extent that these towers were acquired in individually material transactions, we may be required to place enhanced reliance on the 
financial and operational representations and warranties of the sellers. If (i) these records are not complete or accurate, (ii) we do not 
have complete access to, or use of, the land underlying the acquired towers or (iii) the towers do not achieve the financial results 
anticipated, it could adversely affect our revenues and results of operations.  

In addition, acquisitions which would be material in the aggregate may exacerbate the risks inherent with our growth strategy, 

such as (i) an adverse impact on our overall profitability if the acquired towers do not achieve the projected financial results, (ii) 
unanticipated costs associated with the acquisitions that may impact our results of operations for a period, (iii) increased demands on 
our cash resources that may, among other things, impact our ability to explore other opportunities, (iv) undisclosed and assumed 
liabilities that we may be unable to recover, (v) increased vulnerability to general economic conditions, (vi) an adverse impact on our 
existing customer relationships, (vii) additional expenses and exposure to new regulatory, political and economic risks if such 
acquisitions were in new jurisdictions and (viii) diversion of managerial attention. 

The process of integrating any acquired towers into our operations may result in unforeseen operating difficulties and large 
expenditures and may absorb significant management attention that would otherwise be available for the ongoing development of our 
business. It may also result in the loss of key customers and/or personnel and expose us to unanticipated liabilities. These risks may be 
exacerbated in those circumstances in which we acquire a material number of towers. Further, we may not be able to retain the key 
employees that may be necessary to operate the business we acquire, and we may not be able to timely attract new skilled employees 
and management to replace them. There can be no assurance that we will be successful in integrating acquisitions into our existing 
business. This is particularly true in our international acquisitions of towers from wireless service providers. 

 Delays or changes in the deployment or adoption of new technologies or slowing consumer adoption rates may have a material 
adverse effect on our growth rate.  

There can be no assurances that 3G, 4G, including long-term evolution (“LTE”), advanced wireless service in the 1695-1710 

MHz, 1755-1780 MHz, and 2155-2180 MHz bands (the “AWS-3” bands), or other new wireless technologies such as 5G will be 
deployed or adopted as rapidly as projected or that these new technologies will be implemented in the manner anticipated. The 
deployment of 3G in the United States experienced delays from the original projected timelines of the wireless and broadcast 
industries, and continued deployment of 4G could experience delays. Additionally, the demand by consumers and the adoption rate of 
consumers for these new technologies once deployed may be lower or slower than anticipated, particularly in certain of our 
international markets. These factors could have a material adverse effect on our growth rate since growth opportunities and demand 
for our tower space as a result of such new technologies may not be realized at the times or to the extent anticipated.  

The documents governing our indebtedness contain restrictive covenants that could adversely affect our business by limiting our 
flexibility.  

The indentures governing the 2014 Senior Notes, the 2016 Senior Notes, and the 2017 Senior Notes, the Senior Credit 

Agreement, and the mortgage loan underlying the Tower Securities contain restrictive covenants imposing significant operational and 
financial restrictions on us, including restrictions that may limit our ability to engage in acts that may be in our long-term best 
interests. Among other things, the covenants under each instrument limit our ability to:  

• 

• 

• 

• 

• 

merge, consolidate or sell assets;  

make restricted payments, including pay dividends or make other distributions;  

enter into transactions with affiliates;  

enter into sale and leaseback transactions; and  

issue guarantees of indebtedness.  

We are required to maintain certain financial ratios under the Senior Credit Agreement. The Senior Credit Agreement, as 

amended, requires SBA Senior Finance II to maintain specific financial ratios, including (1) a ratio of Consolidated Total Debt to 
Annualized Borrower EBITDA not to exceed 6.5 times for any fiscal quarter, (2) a ratio of Consolidated Total Debt and Net Hedge 
Exposure (calculated in accordance with the Senior Credit Agreement) to Annualized Borrower EBITDA for the most recently ended 

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fiscal quarter not to exceed 6.5 times for 30 consecutive days and (3) a ratio of Annualized Borrower EBITDA to Annualized Cash 
Interest Expense (calculated in accordance with the Senior Credit Agreement) of not less than 2.0 times for any fiscal quarter.  

Additionally, the mortgage loan relating to our Tower Securities contains financial covenants that require that the borrowers 

maintain, on a consolidated basis, a minimum debt service coverage ratio. To the extent that the debt service coverage ratio, as of the 
end of any calendar quarter, falls to 1.30 times or lower, then all cash flow in excess of amounts required to make debt service 
payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other payments required 
under the loan documents, referred to as “excess cash flow,” will be deposited into a reserve account instead of being released to the 
borrowers. The funds in the reserve account will not be released to the borrowers unless the debt service coverage ratio exceeds 1.30 
times for two consecutive calendar quarters. If the debt service coverage ratio falls below 1.15 times as of the end of any calendar 
quarter, then an “amortization period” will commence and all funds on deposit in the reserve account will be applied to prepay the 
mortgage loan until such time that the debt service coverage ratio exceeds 1.15 times for a calendar quarter.   

These covenants could place us at a disadvantage compared to some of our competitors which may have fewer restrictive 

covenants and may not be required to operate under these restrictions. Further, these covenants could have an adverse effect on our 
business by limiting our ability to take advantage of financing, new tower development, merger and acquisitions or other 
opportunities. If we fail to comply with these covenants, it could result in an event of default under our debt instruments. If any default 
occurs, all amounts outstanding under our outstanding notes and the Senior Credit Agreement may become immediately due and 
payable.  

Our dependence on our subsidiaries for cash flow may negatively affect our business.  

We are a holding company with no business operations of our own. Our only significant assets are, and are expected to be, the 

outstanding capital stock and membership interests of our subsidiaries. We conduct, and expect to continue conducting, all of our 
business operations through our subsidiaries. Accordingly, our ability to pay our obligations is dependent upon dividends and other 
distributions from our subsidiaries to us. Most of our indebtedness is owed directly by our subsidiaries, including the mortgage loan 
underlying the Tower Securities, the Term Loans and any amounts that we may borrow under the Revolving Credit Facility. 
Consequently, the first use of any cash flow from operations generated by such subsidiaries will be payments of interest and principal, 
if any, under their respective indebtedness. Other than the cash required to repay amounts due under our 2014 Senior Notes, 2016 
Senior Notes, and 2017 Senior Notes and funds to be utilized for stock repurchases, we currently expect that substantially all the 
earnings and cash flow of our subsidiaries will be retained and used by them in their operations, including servicing their respective 
debt obligations. The ability of our operating subsidiaries to pay dividends or transfer assets to us is restricted by applicable state law 
and contractual restrictions, including the terms of their outstanding debt instruments.  

Our quarterly operating results for our site development services fluctuate and therefore we may not be able to adjust our cost 
structure on a timely basis with regard to such fluctuations.  

The demand for our site development services fluctuates from quarter to quarter and should not be considered indicative of 

long-term results. Numerous factors cause these fluctuations, including:  

• 

• 

• 

• 

• 

• 

• 

• 

the timing and amount of our customers’ capital expenditures;  

the size and scope of our projects;  

the business practices of customers, such as deferring commitments on new projects until after the end of the calendar 
year or the customers’ fiscal year;  

delays relating to a project or tenant installation of equipment;  

seasonal factors, such as weather, holidays and vacation days and total business days in a quarter;  

the use of third party providers by our customers;  

the rate and volume of wireless service providers’ network development; and  

general economic conditions.  

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Although the demand for our site development services fluctuates, we incur significant fixed costs, such as maintaining a staff 
and office space, in anticipation of future contracts. In addition, the timing of revenues is difficult to forecast because our sales cycle 
may be relatively long. Therefore, we may not be able to adjust our cost structure on a timely basis to respond to the fluctuations in 
demand for our site development services.  

The loss of the services of certain of our key personnel or a significant number of our employees may negatively affect our 
business.  

Our success depends to a significant extent upon performance and active participation of our key personnel. We cannot 

guarantee that we will be successful in retaining the services of these key personnel. We have employment agreements with Jeffrey A. 
Stoops, our President and Chief Executive Officer, Kurt L. Bagwell, our Executive Vice President and President—International, 
Thomas P. Hunt, our Executive Vice President, Chief Administrative Officer and General Counsel, and Brendan T. Cavanagh, our 
Executive Vice President and Chief Financial Officer. We do not have employment agreements with any of our other key personnel. If 
we were to lose any key personnel, we may not be able to find an appropriate replacement on a timely basis and our results of 
operations could be negatively affected. Further, the loss of a significant number of employees or our inability to hire a sufficient 
number of qualified employees could have a material adverse effect on our business.  

Our business is subject to government regulations and changes in current or future regulations could harm our business.  

We are subject to federal, state and local regulation of our business, both in the U.S. and internationally. In the U.S., both the 
FAA and the FCC regulate the construction, modification, and maintenance of towers and structures that support antennas used for 
wireless communications and radio and television broadcasts. In addition, the FCC separately licenses and regulates wireless 
communications equipment and television and radio stations operating from such towers. FAA and FCC regulations govern 
construction, lighting, painting, and marking of towers and may, depending on the characteristics of the tower, require registration of 
the tower. Certain proposals to construct new towers or to modify existing towers are reviewed by the FAA to ensure that the tower 
will not present a hazard to air navigation.  

Tower owners may have an obligation to mark or paint such towers or install lighting to conform to FAA and FCC regulations 

and to maintain such marking, painting and lighting. Tower owners may also bear the responsibility of notifying the FAA of any 
lighting outages. Certain proposals to operate wireless communications and radio or television stations from towers are also reviewed 
by the FCC to ensure compliance with environmental impact requirements established in federal statutes, including NEPA, NHPA and 
ESA. Failure to comply with existing or future applicable requirements may lead to civil penalties or other liabilities and may subject 
us to significant indemnification liability to our customers against any such failure to comply. In addition, new regulations may 
impose additional costly burdens on us, which may affect our revenues and cause delays in our growth. Local regulations, including 
municipal or local ordinances, zoning restrictions and restrictive covenants imposed by community developers, vary greatly, but 
typically require tower owners to obtain approval from local officials or community standards organizations prior to tower 
construction or modification. Local regulations can delay, prevent, or increase the cost of new construction, co-locations, or site 
upgrades, thereby limiting our ability to respond to customer demand. In addition, new regulations may be adopted that increase 
delays or result in additional costs to us. In our international operations, the impact of these zoning, permitting and related regulations 
and restrictive covenants on our new builds, co-locations and operations could be exacerbated as some of these markets may lack 
established permitting processes for towers, have inconsistencies between national and local regulations and have other barriers to 
timely construction and permitting of towers.  As a result, tower construction in some of our international markets may be delayed or 
halted or our acquired towers may not perform as anticipated. These factors could have a material adverse effect on our future growth 
and operations.  

Security breaches and other disruptions could compromise our information, which would cause our business and reputation to 
suffer. 

As part of our day-to-day operations, we rely on information technology and other computer resources and infrastructure to 

carry out important business activities and to maintain our business records. Our computer systems, or those of our cloud or Internet-
based providers, could fail on their own accord and are subject to interruption or damage from power outages, computer and 
telecommunications failures, computer viruses, security breaches (including through cyber-attack and data theft), errors, catastrophic 
events such as natural disasters and other events beyond our control. If our or our vendors’ computer systems and backup systems are 
compromised, degraded, damaged, or breached, or otherwise cease to function properly, we could suffer interruptions in our 
operations or unintentionally allow misappropriation of proprietary or confidential information (including information about our 
tenants or landlords). This could damage our reputation and disrupt our operations and the services we provide to customers, which 
could adversely affect our business and operating results. 

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Our towers are subject to damage from natural disasters and other unforeseen events.  

Our towers are subject to risks associated with natural disasters such as tornadoes, hurricanes and earthquakes or may collapse 
for any number of reasons, including structural deficiencies. We maintain insurance to cover the estimated cost of replacing damaged 
towers, but these insurance policies are subject to loss limits and deductibles. We also maintain third party liability insurance, subject 
to loss limits and deductibles, to protect us in the event of an accident involving a tower. A tower accident for which we are uninsured 
or underinsured, or damage to a significant number of our towers, could require us to incur significant expenditures and may have a 
material adverse effect on our operations or financial condition and may harm our reputation.  

To the extent that we are not able to meet our contractual obligations to our customers, due to a natural disaster or other 
catastrophic circumstances, our customers may not be obligated or willing to pay their lease expenses; however, we may be required 
to continue paying our fixed expenses related to the affected tower, including ground lease expenses. If we are unable to meet our 
contractual obligations to our customers for a material portion of our towers, our operations could be materially and adversely 
affected.  

We could have liability under environmental laws that could have a material adverse effect on our business, financial condition 
and results of operations.  

Our operations, like those of other companies engaged in similar businesses, are subject to the requirements of various federal, 

state, local and foreign environmental and occupational safety and health laws and regulations, including those relating to the 
management, use, storage, disposal, emission and remediation of, and exposure to, hazardous and non-hazardous substances, 
materials, and wastes. As owner, lessee, or operator of numerous tower structures, we may be liable for substantial costs of 
remediating soil and groundwater contaminated by hazardous materials without regard to whether we, as the owner, lessee, or 
operator, knew of or were responsible for the contamination. We may be subject to potentially significant fines or penalties if we fail 
to comply with any of these requirements. The current cost of complying with these laws is not material to our financial condition or 
results of operations. However, the requirements of these laws and regulations are complex, change frequently, and could become 
more stringent in the future. It is possible that these requirements will change or that liabilities will arise in the future in a manner that 
could have a material adverse effect on our business, financial condition and results of operations.  

We could suffer adverse tax and other financial consequences if taxing authorities do not agree with our tax positions. 

We are periodically subject to a number of tax examinations by taxing authorities in the states and countries where we do 

business. We also have significant net operating losses (“NOLs”) in U.S. federal and state taxing jurisdictions. Generally, for U.S. 
federal and state tax purposes, NOLs generated prior to the 2018 tax year can be carried forward and used for up to twenty years, and 
all of our tax years will remain subject to examination until three years after our NOLs are used or expire. NOLs generated starting in 
the 2018 tax year can be carried forward indefinitely but are subject to the 80% utilization limitation. We expect that we will continue 
to be subject to tax examinations in the future. In addition, U.S. federal, state and local, as well as international, tax laws and 
regulations are extremely complex and subject to varying interpretations. If our tax benefits, including from our use of NOLs or other 
tax attributes, are challenged successfully by a taxing authority, we may be required to pay additional taxes or penalties, or make 
additional distributions, which could have a material adverse effect on our business, results of operations and financial condition. 

Our issuance of equity securities and other associated transactions may trigger a future ownership change which may negatively 
impact our ability to utilize NOLs in the future. 

The issuance of equity securities and other associated transactions may increase the chance that we will have a future ownership 
change under Section 382 of the Internal Revenue Code of 1986. We may also have a future ownership change, outside of our control, 
caused by future equity transactions by our current shareholders. Depending on our market value at the time of such future ownership 
change, an ownership change under Section 382 could negatively impact our ability to utilize our NOLs and could result in us having 
to make additional cash distributions. 

Our costs could increase and our revenues could decrease due to perceived health risks from RF energy.  

The U.S. government imposes requirements and other guidelines relating to exposure to RF energy. Exposure to high levels of 

RF energy can cause negative health effects. The potential connection between exposure to low levels of RF energy and certain 
negative health effects, including some forms of cancer, has been the subject of substantial study by the scientific community in recent 
years. According to the FCC, the results of these studies to date have been inconclusive. However, public perception of possible health 
risks associated with cellular and other wireless communications media could slow the growth of wireless companies, which could in 
turn slow our growth. In particular, negative public perception of, and regulations regarding, health risks could cause a decrease in the 

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demand for wireless communications services. Moreover, if a connection between exposure to low levels of RF energy and possible 
negative health effects, including cancer, were demonstrated, we could be subject to numerous claims. Our current policies provide no 
coverage for claims based on RF energy exposure. If we were subject to claims relating to exposure to RF energy, even if such claims 
were not ultimately found to have merit, our financial condition could be materially and adversely affected. 

The recently adopted US tax legislation may result in additional tax liabilities that may affect our future results and profitability. 

On December 22, 2017, the U.S. government enacted comprehensive tax legislation, commonly referred to as the Tax Cuts 
and Jobs Act (the “Tax Act”), that significantly revises the U.S. tax code by, among other things, lowering the corporate income tax 
rate from a top marginal rate of 35% to a flat 21%, imposing a mandatory one-time deemed repatriation of foreign earnings 
(commonly referred to as the “transition tax”), limiting deductibility of interest expense and certain executive compensation and 
implementing a territorial tax system. 

The SEC staff acknowledged the challenges companies face incorporating the effects of the Tax Act by their financial 
reporting deadlines. In response, Staff Accounting Bulletin No. 118 (“SAB 118”) was issued on December 22, 2017, regarding 
application of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 740, Income 
Taxes (“ASC Topic 740”), specifically to the Tax Act.  SAB 118 addresses the application of US GAAP in situations when a 
registrant does not have the necessary information available, prepared, or analyzed in reasonable detail to complete accounting for 
certain income tax effects of the Tax Act. 

The Tax Act impacted our consolidated results of operations during the fourth quarter and may impact our consolidated 

results of operations in future periods.  In particular, the transition tax resulted in a one-time income inclusion of $52.4 million related 
to previously unremitted earnings of certain non-U.S. subsidiaries, which we will elect to include in income over the next eight tax 
years. The inclusion will be offset by our existing NOLs to the extent possible during the eight-year recognition period. In addition, 
we recorded a one-time reduction to our deferred tax asset and offsetting valuation allowance in the amount of $31.5 million; $19.2 
million related to the reduction of the U.S. corporate tax rate and $12.3 million related to the new limitations on the deductibility of 
executive compensation.  These amounts represent our provisional estimate of the relevant charges, but will be subject to adjustment 
as we finalize the relevant computations and as additional IRS rules and guidance on the Tax Act provisions are adopted. Since the 
Tax Act was passed late in the fourth quarter of 2017, and ongoing guidance and accounting interpretation are expected over the next 
12 months, we consider the accounting of the Transition Tax, GILTI, Section 162(m) adjustment, state taxes, and other items to be 
incomplete due to the forthcoming guidance and our ongoing analysis of final year-end data and tax positions. We expect to complete 
our analysis within the measurement period in accordance with SAB 118.  Any material revisions in our computations could adversely 
affect our results of operations in future periods.   

In addition, many of the provisions of the Tax Act will require guidance through the issuance of Treasury regulations in order 

to assess their effect. There may be a substantial delay before such regulations are promulgated, increasing the uncertainty as to the 
ultimate effect of the statutory amendments on us. Future regulatory or administrative guidance may also have an adverse impact on 
us or our shareholders. 

Risks Related to Our Status as a REIT 

Complying with the REIT requirements may cause us to liquidate assets or hinder our ability to pursue otherwise attractive asset 
acquisition opportunities.  

To qualify as a REIT for federal income tax purposes, we must continually satisfy tests concerning, among other things, the 

nature and diversification of our assets, the sources of our income and the amounts we distribute to our shareholders. For example, to 
qualify as a REIT, we must ensure that, at the end of each calendar quarter, at least 75% of the value of our assets consists of cash, 
cash items, government securities and “real estate assets” (as defined in the Code), including towers and certain mortgage loans and 
securities. The remainder of our investments (other than government securities, qualified real estate assets and securities issued by a 
taxable REIT subsidiary (“TRS”) generally cannot include more than 10% of the outstanding voting securities of any one issuer or 
more than 10% of the total value of the outstanding securities of any one issuer. In addition, in general, no more than 5% of the value 
of our total assets (other than government securities, qualified real estate assets and securities issued by a TRS) can consist of the 
securities of any one issuer, and no more than 25% (for taxable years beginning on or before December 31, 2017) or 20% (for taxable 
years beginning after December 31, 2017) of the value of our total assets can be represented by securities of one or more TRSs. If we 
fail to comply with these requirements at the end of any calendar quarter, we must correct the failure within 30 days after the end of 
the calendar quarter or qualify for certain statutory relief provisions to avoid losing our REIT qualification and suffering adverse tax 
consequences. As a result, we may be required to liquidate assets.  

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In addition to the asset tests set forth above, to qualify and be subject to tax as a REIT, we will generally be required to 

distribute at least 90% of our REIT taxable income after the utilization of any available NOLs (determined without regard to the 
dividends paid deduction and excluding net capital gain) each year to our shareholders. Our determination as to the timing or amount 
of future dividends will be based on a number of factors, including investment opportunities around our core business and the 
availability of our existing NOLs. To the extent that we satisfy the 90% distribution requirement, but distribute less than 100% of our 
REIT taxable income (after the application of available NOLs, if any), we will be subject to U.S. federal corporate income tax on our 
undistributed taxable income. In addition, we will be subject to a 4% nondeductible excise tax if the actual amount that we pay out to 
our shareholders for a calendar year is less than a minimum amount specified under the Code. These distribution requirements could 
hinder our ability to pursue otherwise attractive asset acquisition opportunities. Furthermore, our ability to compete for acquisition 
opportunities in domestic and international markets may be adversely affected if we need, or require, the target company to comply 
with certain REIT requirements. These actions could have the effect of reducing our income, amounts available for distribution to our 
shareholders and amounts available for making payments on our indebtedness.  

Qualifying as a REIT involves highly technical and complex provisions of the Code. If we fail to qualify as a REIT or fail to 
remain qualified as a REIT, to the extent we have REIT taxable income and have utilized our NOLs, we will be subject to U.S. 
federal income tax as a regular corporation and could face a substantial tax liability, which would reduce the amount of cash 
available for distribution to our shareholders.  

Qualification as a REIT involves the application of highly technical and complex Code provisions for which only limited 

judicial and administrative authorities exist. Even a technical or inadvertent violation could jeopardize our REIT qualification. Our 
qualification as a REIT will depend on our satisfaction of certain asset, income, organizational, distribution, shareholder ownership 
and other requirements on a continuing basis.  

We received an opinion of our special REIT tax counsel with respect to our qualification as a REIT. Investors should be aware, 
however, that opinions of counsel are not binding on the IRS or any court. The opinion represents only the view of such counsel based 
on its review and analysis of existing law and on certain representations as to factual matters and covenants made by us, including 
representations relating to the values of our assets and the sources of our income. The opinion is expressed as of the date issued. Our 
qualification as a REIT will depend on our satisfaction of certain asset, income, organizational, distribution, shareholder ownership 
and other requirements on a continuing basis. Our ability to satisfy the asset tests depends upon our analysis of the characterization 
and fair market values of our assets, some of which are not susceptible to a precise determination, and for which we will not obtain 
independent appraisals.  

If we fail to qualify as a REIT in any taxable year, to the extent we have REIT taxable income and have utilized our NOLs, we 

would be subject to U.S. federal income tax, including any applicable alternative minimum tax, on our taxable income at regular 
corporate rates, and dividends paid to our shareholders would not be deductible by us in computing our taxable income. Any resulting 
corporate tax liability could be substantial and would reduce the amount of cash available for distribution to our shareholders, which 
in turn could have an adverse impact on the value of our common stock. Unless we were entitled to relief under certain provisions of 
the Code, we also would be disqualified from re-electing to be taxed as a REIT for the four taxable years following the year in which 
we failed to qualify as a REIT. If we fail to qualify for taxation as a REIT, we may need to borrow additional funds or liquidate assets 
to pay any additional tax liability. Accordingly, funds available for investment and making payments on our indebtedness would be 
reduced.  

We may be required to borrow funds, sell assets, or raise equity to satisfy our REIT distribution requirements.  

From time to time, we may generate REIT taxable income greater than our cash flow as a result of differences in timing between 

the recognition of taxable income and the actual receipt of cash or the effect of nondeductible capital expenditures, the creation of 
reserves or required debt or amortization payments. If we do not have other funds available in these situations, we may need to borrow 
funds, sell assets or raise equity, even if the then-prevailing market conditions are not favorable for these borrowings, sales or 
offerings, to enable us to satisfy the REIT distribution requirement and to avoid U.S. federal corporate income tax and the 4% excise 
tax in a particular year. These alternatives could increase our costs and our leverage, decrease our Adjusted Funds From Operations 
per share or require us to distribute amounts that would otherwise be invested in future acquisitions or stock repurchases.  

Thus, compliance with the REIT requirements may hinder our ability to grow, which could adversely affect the value of our 

common stock. Furthermore, compliance with the REIT distribution requirements may increase the financing we need to fund capital 
expenditures, future growth, or expansion initiatives, which would increase our total leverage.  

Covenants specified in our current and future debt instruments may limit our ability to make required REIT distributions.  

The Senior Credit Agreement, the mortgage loan agreement related to our securitization transactions and the indentures 
governing our 2014 Senior Notes, 2016 Senior Notes, and 2017 Senior Notes contain certain covenants that could limit our ability to 

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make distributions to our shareholders. Under the Senior Credit Agreement, our subsidiaries may make distributions to us to satisfy 
our REIT distribution requirements and additional amounts to distribute up to 100% of our REIT taxable income, so long as SBA 
Senior Finance II’s ratio of Consolidated Total Debt to Annualized Borrower EBITDA does not exceed 6.5 times for any fiscal 
quarter. In addition, under the mortgage loan agreement related to our securitization transactions, or Securitization, a failure to comply 
with the Debt Service Coverage Ratio in that agreement could prevent our borrower subsidiaries from distributing any excess cash 
from the operation of their towers to us. Finally, while the indentures governing the 2014 Senior Notes, 2016 Senior Notes, and 2017 
Senior Notes permit us to make distributions to our shareholders to the extent such distributions are necessary to maintain our status as 
a REIT or to avoid entity level taxation, this authority is subject to the conditions that no default or event of default exists or would 
result therefrom and that the obligations under the 2014 Senior Notes, 2016 Senior Notes, or 2017 Senior Notes, as applicable, have 
not otherwise been accelerated.  

If these limits prevent us from satisfying our REIT distribution requirements, we could fail to qualify for taxation as a REIT. If 

these limits do not jeopardize our qualification for taxation as a REIT but do nevertheless prevent us from distributing 100% of our 
REIT taxable income, we will be subject to U.S. federal corporate income tax, and potentially the nondeductible 4% excise tax, on the 
retained amounts.  

Our payment of cash distributions in the future is not guaranteed and the amount of any future cash distributions may fluctuate, 
which could adversely affect the value of our Class A common stock.  

REITs are required to distribute annually at least 90% of their REIT taxable income (determined before the deduction for 
dividends paid and excluding any net capital gain). As of December 31, 2017, $956.7 million of the federal NOLs are attributes of the 
REIT. We may use these NOLs to offset our REIT taxable income, and thus any required distributions to shareholders may be reduced 
or eliminated until such time as the NOLs have been fully utilized. The Internal Revenue Code places limitations upon the future 
availability of NOLs based upon changes in our equity. If these occur, our ability to offset future income with existing NOLs may be 
limited. We currently expect that we will utilize available NOLs to reduce all or a portion of our REIT taxable income and therefore 
we may not initially make any distributions, which may adversely affect the market value of our Class A common stock.  

The amount of future distributions will be determined, from time to time, by the Board of Directors to balance our goal of 

increasing long-term shareholder value and retaining sufficient cash to implement our current capital allocation policy, which 
prioritizes investment in quality assets that meet our return criteria, and then stock repurchases, when we believe our stock price is 
below its intrinsic value. The actual timing and amount of distributions will be as determined and declared by the Board of Directors 
and will depend on, among other factors, our NOLs, our financial condition, earnings, debt covenants and other possible uses of such 
funds. Consequently, our future distribution levels may fluctuate.  

Certain of our business activities may be subject to corporate level income tax and foreign taxes, which would reduce our cash 
flows, and would have potential deferred and contingent tax liabilities.  

We may be subject to certain federal, state, local and foreign taxes on our income and assets, including alternative minimum 
taxes, taxes on any undistributed income and state, local or foreign income, franchise, property and transfer taxes. In addition, we 
could, in certain circumstances, be required to pay an excise or penalty tax, which could be significant in amount, in order to utilize 
one or more relief provisions under the Code to maintain qualification for taxation as a REIT. In addition, we may incur a 100% 
excise tax on transactions with a TRS if they are not conducted on an arm’s length basis. Any of these taxes would decrease our 
earnings and our available cash.  

Our TRS assets and operations also will continue to be subject, as applicable, to federal and state corporate income taxes and to 
foreign taxes in the jurisdictions in which those assets and operations are located. If we continue our international expansion, we may 
have additional TRS assets and operations subject to such taxes. Any of these taxes would decrease our earnings and our available 
cash.  

We will also be subject to a federal corporate level tax at the highest regular corporate rate (35% in 2017 and 21% as of January 

1, 2018) on the gain recognized from a sale of assets occurring during our first five years as a REIT, up to the amount of the built-in 
gain that existed on January 1, 2016, which is based on the fair market value of those assets in excess of our tax basis in those assets as 
of January 1, 2016. Gain from a sale of an asset occurring after the specified period ends will not be subject to this corporate level 
tax. We currently do not expect to sell any asset if the sale would result in the imposition of a material tax liability. We cannot, 
however, assure you that we will not change our plans in this regard.  

Our use of TRSs may cause us to fail to qualify as a REIT.  

The net income of our TRSs is not required to be distributed to us, and such undistributed TRS income is generally not subject 

to our REIT distribution requirements. However, if the accumulation of cash or reinvestment of significant earnings in our TRSs 

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causes the fair market value of our securities in those entities, taken together with other non-qualifying assets, to represent more than 
25% of the fair market value of our assets, or causes the fair market value of our TRS securities alone to represent more than 25% (for 
taxable years beginning on or before December 31, 2017) or 20% (for taxable years beginning after December 31, 2017) of the value 
of our total assets, in each case, as determined for REIT asset testing purposes, we would, absent timely responsive action, fail to 
qualify as a REIT. If we continue our international expansion, we may have increased net income from TRSs, which may cause us to 
rise above these thresholds.  

Legislative or other actions affecting REITs could have a negative effect on us.  

The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process 

and by the IRS and the Treasury. Changes to the tax laws or interpretations thereof, with or without retroactive application, could 
materially and adversely affect our investors or us. We cannot predict how changes in the tax laws might affect our investors or 
us. New legislation, U.S. Treasury Regulations, administrative interpretations or court decisions could significantly and negatively 
affect our ability to qualify as a REIT or the U.S. federal income tax consequences to our investors and us of such qualification.  

Our Board’s ability to revoke our REIT qualification, without shareholder approval, may cause adverse consequences to our 
shareholders. 

Our articles of incorporation provide that our Board of Directors may revoke or otherwise terminate our REIT election, without 
the approval of our shareholders, if it determines that it is no longer in our best interests to continue to qualify as a REIT. If we cease 
to be a REIT, we will not be allowed a deduction for dividends paid to shareholders, if any, in computing our taxable income, and to 
the extent we have taxable income and have utilized our NOLs, we will be subject to U.S. federal income tax at regular corporate rates 
and state and local taxes, which may have adverse consequences on our total return to our shareholders. 

We have limited experience operating as a REIT, which may adversely affect our financial condition, results of operations, cash 
flow, per share trading price of our common stock and ability to satisfy debt service obligations.  

We have limited experience operating as a REIT, and as a result, we may not be able to operate successfully as a REIT. In 
addition, we will be required to implement substantial control systems and procedures in order to maintain our status as a REIT. As a 
result, we may incur additional legal, accounting and other expenses that we have not previously incurred, which could be significant, 
and our management and other personnel may need to devote additional time to comply with these rules and regulations and controls 
required for continued compliance with the Code. These costs and time commitments could be substantially more than we currently 
expect. Therefore, our historical combined consolidated financial statements may not be indicative of our future costs and 
performance as a REIT. If our performance is adversely affected, it could affect our financial condition, results of operations, cash 
flow and ability to satisfy our debt service obligations.  

The historical market price of our Class A common stock prior to our REIT conversion may not be indicative of the market price 
of our Class A common stock following our REIT conversion. 

The historical market price of our Class A common stock prior to our REIT conversion, which commenced with our taxable 

year ending December 31, 2016, may not be indicative of how the market values our Class A common stock following our REIT 
conversion because of the change in our organization from a taxable C corporation to a REIT. Although we do not currently anticipate 
commencing distributions until a future date, the stock price of REIT securities have historically been affected by changes in market 
interest rates as investors evaluate the annual yield from distributions on the entity’s common stock as compared to yields on other 
financial instruments. In addition, the market price of our Class A common stock may be affected by the economic and market 
perception of REIT securities as well as general market conditions. 

Dividends payable by REITs do not qualify for the reduced tax rates available for some dividends.  

The maximum U.S. federal income tax rate applicable to income from “qualified dividends” payable to U.S. shareholders that 
are individuals, trusts and estates is currently 20%. Dividends payable by REITs, however, generally are not eligible for the reduced 
rates applicable to qualified dividends. Although these rules do not adversely affect the taxation of REITs, the more favorable rates 
applicable to regular corporate qualified dividends could cause investors who are individuals, trusts and estates to perceive 
investments in REITs to be relatively less attractive than investments in the stocks of non-REIT corporations that pay dividends, 
which could adversely affect the value of the stock of REITs, including our common stock. 

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Risks Related to Ownership of our Class A Common Stock 

The REIT-related ownership and transfer restrictions may restrict or prevent our shareholders from engaging in certain transfers 
of our common stock. 

In order for us to satisfy the requirements for REIT qualification, no more than 50% in value of all classes or series of our 
outstanding shares of stock may be owned, beneficially or constructively, by five or fewer individuals (as defined in the Code to 
include certain entities) at any time during the last half of each taxable year (other than the first year for which an election to be 
subject to tax as a REIT has been made). In addition, our capital stock must be beneficially owned by 100 or more persons during at 
least 335 days of a taxable year of 12 months or during a proportionate part of a shorter taxable year (other than the first year for 
which an election to be taxed as a REIT has been made). Our articles of incorporation contain REIT-related ownership and transfer 
restrictions that generally restrict shareholders from owning more than 9.8%, by value or number of shares, whichever is more 
restrictive, of our outstanding shares of Class A common stock, or 9.8% in aggregate value of the outstanding shares of all classes and 
series of our capital stock. Under applicable constructive ownership rules, any shares of stock owned by certain affiliated owners 
generally would be added together for purposes of the ownership limits. These ownership and transfer restrictions could have the 
effect of delaying, deferring or preventing a transaction or a change in control that might involve a premium price for our capital stock 
or otherwise be in the best interest of our shareholders.  

Future sales of our Class A common stock in the public market or the issuance of other equity may cause dilution or adversely 
affect the market price of our Class A common stock and our ability to raise funds in new equity or equity-related offerings.  

Sales of a substantial number of shares of our Class A common stock or other equity-related securities in the public market, 

including sales by any selling shareholder, could depress the market price of our Class A common stock and impair our ability to raise 
capital through the sale of additional equity securities. 

Our articles of incorporation, our bylaws and Florida law provide for anti-takeover provisions that could make it more difficult for 
a third party to acquire us.  

Provisions of our articles of incorporation, our bylaws and Florida law could make it more difficult for a third party to acquire 

us, even if doing so would be beneficial to our shareholders. These provisions, alone or in combination with each other, may 
discourage transactions involving actual or potential changes of control, including transactions that otherwise could involve payment 
of a premium over prevailing market prices to holders of our Class A common stock, or could limit the ability of our shareholders to 
approve transactions that they may deem to be in their best interests.  

ITEM 2. PROPERTIES 

We own our headquarters in Boca Raton, Florida where we currently have approximately 160,000 square feet of office space.  

We also own or have entered into long-term leases for international and regional locations convenient for the management and 
operation of our site leasing activities, and in certain site development office locations where we expect our activities to be longer-
term. We open and close project offices from time to time in connection with our site development business. We believe our existing 
facilities are adequate for our current and planned levels of operations and that additional office space suited for our needs is 
reasonably available in the markets within which we operate.  

Our interests in towers and the land beneath them are comprised of a variety of fee interests, leasehold interests created by long-
term lease agreements, perpetual easements, easements, licenses, rights-of-way, and other similar interests. As of December 31, 2017, 
approximately 70% of our tower structures were located on parcels of land that we own, land subject to perpetual easements, or 
parcels of land that have an interest that extends beyond 20 years. The average remaining life under our ground leases, including 
renewal options under our control, is 33 years. In rural areas, support for our towers, equipment shelters, and related equipment 
requires a tract of land typically up to 10,000 square feet. Less than 2,500 square feet is required for a monopole or self-supporting 
tower of the kind typically used in metropolitan areas for wireless communications towers. Ground leases are generally for an initial 
term of five years or more with five or more additional automatic renewal periods of five years, for a total of thirty years or more. 

Most of our towers have significant capacity available for additional antennas. We measure the available capacity of our 

existing facilities to support additional tenants and generate additional lease revenue by assessing several factors, including tower 
height, tower type, wind loading, environmental conditions, existing equipment on the tower and zoning and permitting regulations in 
effect in the jurisdiction where the tower is located. As of December 31, 2017, we had an average of 1.7 tenants per tower structure. 

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ITEM 3. LEGAL PROCEEDINGS  

We are involved in various legal proceedings relating to claims arising in the ordinary course of business. We do not believe that 
the ultimate resolution of these matters will have a material adverse effect on our business, financial condition, results of operations or 
liquidity.  

ITEM 4. MINE SAFETY DISCLOSURE  

Not Applicable.  

 PART II  

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER 
PURCHASES OF EQUITY SECURITIES  

Market for our Class A Common Stock  

Our Class A common stock commenced trading under the symbol “SBAC” on The NASDAQ National Market System on 
June 16, 1999. We now trade on the NASDAQ Global Select Market, a segment of the NASDAQ Global Market, formally known as 
the NASDAQ National Market System.  

The following table presents the high and low sales price for our Class A common stock for the periods indicated:  

Quarter ended December 31, 2017 

Quarter ended September 30, 2017 

Quarter ended June 30, 2017 

Quarter ended March 31, 2017 

Quarter ended December 31, 2016 

Quarter ended September 30, 2016 

Quarter ended June 30, 2016 

Quarter ended March 31, 2016 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

High 

Low 

 173.97  

 154.71  

 140.38  

 120.51  

 116.27  

 118.57  

 108.30  

 107.44  

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

 142.31 

 133.27 

 118.59 

 102.06 

 95.66 

 107.36 

 96.68 

 82.80 

As of February 21, 2018, there were 67 record holders of our Class A common stock. 

Dividends  

We have never paid a dividend on any class of common stock.  As a REIT, we are required to distribute annually at least 90% of 

our REIT taxable income after the utilization of any available NOLs (determined before the deduction for dividends paid and 
excluding any net capital gain). As of December 31, 2017, $956.7 million of the federal NOLs are attributes of the REIT. We may use 
these NOLs to offset our REIT taxable income, and thus any required distributions to shareholders may be reduced or eliminated until 
such time as our NOLs have been fully utilized. The amount of future distributions will be determined, from time to time, by the board 
of directors to balance our goal of increasing long-term shareholder value and retaining sufficient cash to implement our current 
capital allocation policy, which prioritizes investment in quality assets that meet our return criteria, and then stock repurchases when 
we believe our stock price is below its intrinsic value. The actual amount, timing and frequency of future dividends, will be at the sole 
discretion of the board of directors and will be declared based upon various factors, many of which are beyond our control. 

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Issuer Purchases of Equity Securities 

The following table presents information related to our repurchases of Class A common stock during the fourth quarter of 2017: 

Total 

Number 

of Shares 

Total Number of Shares 

Approximate Dollar Value 

Average 

Price Paid 

Purchased as Part of 

of Shares that May Yet Be 

Publicly Announced 

Purchased Under the 

Period 

Purchased 

Per Share 

Plans or Programs (1) 

Plans or Programs 

10/1/2017 - 10/31/2017 

 754,955 

  $ 

11/1/2017 - 11/30/2017 

 1,187,788 

  $ 

12/1/2017 - 12/31/2017 

 — 

  $ 

 147.19  

 168.38  

 —  

 754,955  
 1,187,788  
 —  

$ 

$ 

$ 

 350,002,722 

 150,002,829 

 150,002,829 

Total 
 150,002,829 
(1)  On February 16, 2018, our Board of Directors authorized a new stock repurchase plan, replacing the plan authorized on January 

 1,942,743  

 1,942,743  

 160.15  

$ 

$ 

12, 2017 which had a remaining authorization of $150.0 million. This plan authorizes us to purchase, from time to time, up to 
$1.0 billion of our outstanding Class A common stock through open market repurchases in compliance with Rule 10b-18 under 
the Exchange Act, and/or in privately negotiated transactions at management’s discretion based on market and business 
conditions, applicable legal requirements and other factors. Shares repurchased will be retired. The new plan has no time 
deadline and will continue until otherwise modified or terminated by our Board of Directors at any time in its sole discretion.   

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 ITEM 6. SELECTED FINANCIAL DATA 

The following table sets forth selected historical financial data as of and for each of the five years in the period ended December 31, 

2017. The financial data for the fiscal years ended 2017, 2016, 2015, 2014, and 2013 have been derived from our audited consolidated 
financial statements. You should read the information set forth below in conjunction with our “Management’s Discussion and Analysis of 
Financial Condition and Results of Operations” and our consolidated financial statements and the related notes to those consolidated financial 
statements included in this Form 10-K.  

For the year ended December 31, 

2017 

2016 

2015 

2014 

2013 

(audited) (in thousands, except for per share data) 

Revenues: 

Site leasing 

Site development 

Total revenues 

Operating expenses: 

 $   1,623,173  $   1,538,070  $   1,480,634  $   1,360,202  $   1,133,013 
 171,853 

 166,794   

 157,840   

 104,501   

 95,055   

 1,727,674   

 1,633,125   

 1,638,474   

 1,526,996   

 1,304,866 

Cost of revenues (exclusive of depreciation, accretion,  

and amortization shown below): 

Cost of site leasing 

Cost of site development 

 359,527   

 342,215   

 324,655   

 301,313   

 270,772 

 86,785   

 78,682   

 119,744   

 127,172   

 137,481 

Selling, general, and administrative 

 130,697   

 143,349   

 114,951   

 103,317   

Acquisition related adjustments and expenses 

Asset impairment and decommission costs 

Depreciation, accretion, and amortization 

Total operating expenses 

Operating income 

Other income (expense): 

Interest income 

Interest expense 

Non-cash interest expense 

Amortization of deferred financing fees 

Loss from extinguishment of debt, net 

Other income (expense) 

Total other expense 

Income (loss) before provision for income taxes 

(Provision) benefit for income taxes 

Net income (loss) 

Basic net income (loss) per common share 

Diluted net income (loss) per common share 

Weighted average common shares outstanding: 

Basic 

Diluted 

 12,367   

 36,697   
 643,100   
 1,269,173   
 458,501   

 13,140   

 30,242   

 638,189   

 1,245,817   

 387,308   

 11,864   

 94,783   
 660,021   
 1,326,018   
 312,456   

 7,798   

 23,801   

 85,476 

 19,198 

 28,960 

 627,072   

 533,334 

 1,190,473   

 1,075,221 

 336,523   

 229,645 

 11,337   

 10,928   

 3,894   

 677   

 1,794 

 (323,749)   

 (329,171)   

 (322,366)   

 (292,600)   

 (249,051) 

 (2,879)   

 (2,203)   

 (1,505)   

 (27,112)   

 (49,085) 

 (21,940)   

 (21,136)   

 (19,154)   

 (17,572)   

 (15,560) 

 (1,961)   

 (52,701)   

 (783)   

 (26,204)   

 (6,099) 

 (2,418)   
 (341,610)   
 116,891   
 (13,237)   
 103,654  $ 

 94,278   

 (300,005)   

 87,303   

 (11,065)   

 76,238  $ 

 (139,137)   
 (479,051)   
 (166,595)   
 (9,061)   
 (175,656)  $ 

 10,628   

 31,138 

 (352,183)   

 (286,863) 

 (15,660)   

 (57,218) 

 (8,635)   

 1,309 

 (24,295)  $ 

 (55,909) 

 0.86  $ 

 0.86  $ 

 0.61  $ 

 0.61  $ 

 (1.37)  $ 

 (1.37)  $ 

 (0.19)  $ 

 (0.19)  $ 

 (0.44) 

 (0.44) 

 119,860    

 124,448    

 127,794    

 128,919    

 127,769 

 121,022    

 125,144    

 127,794    

 128,919    

 127,769 

 $ 

 $ 

 $ 

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Balance Sheet Data 

Cash and cash equivalents 

Restricted cash - current 

Property and equipment, net 

Intangibles, net 
Total assets 

Total debt 

2017 

2016 

2015 

2014 

2013 

(audited) (in thousands) 

As of December 31,  

  $ 

 68,783   $ 

 146,109   $ 

 118,039   $ 

 39,443   $ 

 122,112 

 32,924  

 36,786  

 25,353  

 52,519  

 47,305 

 2,812,346  

 2,792,076  

 2,782,353  

 2,762,417  

 2,578,444 

 3,598,131  

 3,656,924  

 3,735,413  

 4,189,540  

 3,387,198 

 7,320,205  

 7,360,945  

 7,312,980  

 7,748,635  

 6,714,025 

 9,310,686  

 8,775,583  

 8,452,070  

 7,768,309  

 5,807,444 

Total shareholders' (deficit) equity 

 (2,599,114)  

 (1,995,921)  

 (1,706,144)  

 (660,801)  

 356,966 

Other Data 
Cash provided by (used in): 
Operating activities 
Investing activities 
Financing activities 

2017 

2016 

2015 

2014 

2013 

For the year ended December 31, 

(audited) (in thousands) 

  $ 

 818,470   $ 
 (605,107)  
 (294,574)  

 742,525   $ 
 (428,235)  
 (288,557)  

 723,030   $ 
 (737,065)  
 75,751  

 674,340   $ 

 (1,764,127)  
 995,298  

 509,852 
 (820,197) 
 218,170 

 ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF 
OPERATIONS  

The following discussion of our financial condition and results of operations should be read in conjunction with the information 

contained in our consolidated financial statements and the notes thereto. The following discussion includes forward-looking 
statements that involve certain risks and uncertainties, including, but not limited to, those described in Item 1A. Risk Factors. Our 
actual results may differ materially from those discussed below. See “Special Note Regarding Forward-Looking Statements” and 
Item 1A. Risk Factors.  

We are a leading independent owner and operator of wireless communications infrastructure, including tower structures, 
rooftops and other structures that support antennas used for wireless communications, which we collectively refer to as “towers” or 
“sites.” Our principal operations are in the United States and its territories. In addition, we own and operate towers in South America, 
Central America, and Canada. Our primary business line is our site leasing business, which contributed 98.7% of our total segment 
operating profit for the year ended December 31, 2017. In our site leasing business, we (1) lease antenna space to wireless service 
providers on towers that we own or operate and (2) manage rooftop and tower sites for property owners under various contractual 
arrangements. As of December 31, 2017, we owned 27,909 towers, a substantial portion of which have been built by us or built by 
other tower owners or operators who, like us, have built such towers to lease space to multiple wireless service providers. We also 
managed or leased approximately 9,000 actual or potential towers, approximately 500 of which were revenue producing as of 
December 31, 2017. Our other business line is our site development business, through which we assist wireless service providers in 
developing and maintaining their own wireless service networks.  

Site Leasing Services  

Our primary focus is the leasing of antenna space on our multi-tenant towers to a variety of wireless service providers under 

long-term lease contracts in the United States, Canada, Central America, and South America. As of December 31, 2017, (1) no U.S. 
state or territory accounted for more than 10% of our total tower portfolio by tower count, and (2) no U.S. state or territory accounted 
for more than 10% of our total revenues for the year ended December 31, 2017. In addition, as of December 31, 2017, approximately 
30.1% of our total towers are located in Brazil and less than 3% of our total towers are located in any of our other international 
markets (each country is considered a market). We derive site leasing revenues primarily from wireless service provider tenants, 
including AT&T, T-Mobile, Verizon Wireless, Sprint, Oi S.A., Telefonica, Claro, and TIM. Wireless service providers enter into 
tenant leases with us, each of which relates to the lease or use of space at an individual site. In the United States and Canada, our 

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tenant leases are generally for an initial term of five to ten years with five 5-year renewal periods at the option of the tenant. These 
tenant leases typically contain specific rent escalators, which average 3-4% per year, including the renewal option periods. Tenant 
leases in our Central American and South American markets typically have an initial term of ten years with multiple five year renewal 
periods. In Central America, we have similar rent escalators to that of leases in the United States and Canada while our leases in South 
America escalate in accordance with a standard cost of living index. Site leases in South America typically provide for a fixed rental 
amount and a pass through charge for the underlying ground lease rent. 

In our Central American markets and Ecuador, significantly all of our revenue, expenses, and capital expenditures arising from 

our new build activities are denominated in U.S. dollars. Specifically, most of our ground leases, tenant leases, and tower-related 
expenses are due and paid in U.S. dollars. In our Central American markets, our local currency obligations are principally limited to 
(1) permitting and other local fees, (2) utilities, and (3) taxes. In Brazil, Canada, Chile, and Colombia, significantly all of our revenue, 
expenses, and capital expenditures, including tenant leases, ground leases, and other tower-related expenses are denominated in local 
currency. In Argentina and Peru, our revenue, expenses, and capital expenditures, including tenant leases, ground leases, and other 
tower-related expenses are denominated in a mix of local currency and U.S. dollars.  

Cost of site leasing revenue primarily consists of:  

• 

• 

• 

• 

• 

• 

• 

Rental payments on ground leases and other underlying property interests;  

Straight-line rent adjustment for the difference between rental payments made and the expense recorded as if the 
payments had been made evenly throughout the lease term (which may include renewal terms) of the underlying 
property interests;  

Property taxes;  

Site maintenance and monitoring costs (exclusive of employee related costs);  

Utilities;  

Property insurance; and  

Deferred lease origination cost amortization.  

Ground leases are generally for an initial term of five years or more with multiple renewal terms of five year periods at our 
option and provide for rent escalators which typically average 2-3% annually, or in our South American markets, adjust in accordance 
with a standard cost of living index. As of December 31, 2017, approximately 70% of our tower structures were located on parcels of 
land that we own, land subject to perpetual easements, or parcels of land in which we have a leasehold interest that extends beyond 20 
years. For any given tower, costs are relatively fixed over a monthly or an annual time period. As such, operating costs for owned 
towers do not generally increase as a result of adding additional customers to the tower. The amount of property taxes varies from site 
to site depending on the taxing jurisdiction and the height and age of the tower. The ongoing maintenance requirements are typically 
minimal and include replacing lighting systems, painting a tower, or upgrading or repairing an access road or fencing.  

As indicated in the table below, our site leasing business generates substantially all of our total segment operating profit. For 
information regarding our operating segments, see Note 18 of our Consolidated Financial Statements included in this annual report. 

For the year ended 

Segment operating profit as a percentage of total 

2017 

2016 

2015 

Domestic site leasing 

International site leasing 

Total site leasing 

81.8%  

16.9%  

98.7%  

83.6%  

15.1%  

98.7%  

82.4% 

14.4% 

96.8% 

We believe that the site leasing business continues to be attractive due to its long-term contracts, built-in rent escalators, high 

operating margins, and low customer churn (which refers to when a customer does not renew its lease or cancels its lease prior to the 
end of its term) other than in connection with customer consolidation or cessation of a particular technology. We believe that over the 

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long-term, site leasing revenues will continue to grow as wireless service providers lease additional antenna space on our towers due 
to increasing minutes of network use and data transfer, network expansion and network coverage requirements. During 2018, we 
expect organic site leasing revenue in both our domestic and international segments to increase over 2017 levels due in part to wireless 
carriers deploying unused spectrum and spectrum acquired during auctions completed in 2017. We believe our site leasing business is 
characterized by stable and long-term recurring revenues, predictable operating costs and minimal non-discretionary capital 
expenditures. Due to the relatively young age and mix of our tower portfolio, we expect future expenditures required to maintain these 
towers to be minimal. Consequently, we expect to grow our cash flows by (1) adding tenants to our towers at minimal incremental 
costs by using existing tower capacity or requiring wireless service providers to bear all or a portion of the cost of tower modifications 
and (2) executing monetary amendments as wireless service providers add or upgrade their equipment. Furthermore, because our 
towers are strategically positioned and our customers typically do not relocate, we have historically experienced low tenant lease 
terminations as a percentage of revenue other than in connection with customer consolidation or cessations of a specific technology 
(e.g. iDEN, MetroPCS, Clearwire, and Cricket).  

Site Development Services  

Our site development business, which is conducted in the United States only, is complementary to our site leasing business and 

provides us the ability to keep in close contact with the wireless service providers who generate substantially all of our site leasing 
revenue and to capture ancillary revenues that are generated by our site leasing activities, such as antenna and equipment installation 
at our tower locations. Site development services revenues are earned primarily from providing a full range of end to end services to 
wireless service providers or companies providing development or project management services to wireless service providers. Our 
services include: (1) network pre-design; (2) site audits; (3) identification of potential locations for towers and antennas on existing 
infrastructure; (4) support in leasing of the location; (5) assistance in obtaining zoning approvals and permits; (6) tower and related 
site construction; (7) antenna installation; and (8) radio equipment installation, commissioning, and maintenance. We provide site 
development services at our towers and at towers owned by others on a local basis, through regional, market, and project offices. The 
market offices are responsible for all site development operations.  

For information regarding our operating segments, see Note 18 of our Consolidated Financial Statements included in this annual 

report.  

Capital Allocation Strategy 

Our capital allocation strategy is to prioritize investment in quality assets that meet our return criteria and then stock 

repurchases when we believe our stock price is below its intrinsic value. A primary goal of our capital allocation strategy is to increase 
our Adjusted Funds From Operations per share. To achieve this, we expect we would continue to deploy capital between portfolio 
growth and stock repurchases, subject to compliance with REIT distribution requirements, available funds and market conditions, 
while maintaining our target leverage levels. Key elements of our capital allocation strategy include: 

Portfolio Growth. We intend to continue to grow our tower portfolio, domestically and internationally, through tower 

acquisitions and the construction of new towers.  

Stock Repurchase Program. We currently utilize stock repurchases as part of our capital allocation policy when we believe our 

share price is below intrinsic value. We believe that share repurchases, when purchased at the right price, will facilitate our goal of 
increasing our Adjusted Funds From Operations per share. 

Critical Accounting Policies and Estimates  

We have identified the policies and significant estimation processes below as critical to our business operations and the 

understanding of our results of operations. The listing is not intended to be a comprehensive list. In many cases, the accounting 
treatment of a particular transaction is specifically dictated by accounting principles generally accepted in the United States, with no 
need for management’s judgment in their application. In other cases, management is required to exercise judgment in the application 
of accounting principles with respect to particular transactions. The impact and any associated risks related to these policies on our 
business operations is discussed throughout “Management’s Discussion and Analysis of Financial Condition and Results of 
Operations” where such policies affect reported and expected financial results. For a detailed discussion on the application of these 
and other accounting policies, see Note 2 of our Consolidated Financial Statements for the year ended December 31, 2017, included 
herein. Our preparation of our financial statements requires us to make estimates and assumptions that affect the reported amount of 
assets and liabilities, disclosure of contingent assets and liabilities at the date of our financial statements, and the reported amounts of 
revenue and expenses during the reporting periods. Management bases its estimates on historical experience and on various other 

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assumptions that are believed to be reasonable under the circumstances. There can be no assurance that actual results will not differ 
from those estimates and such differences could be significant.  

Revenue Recognition and Accounts Receivable  

Revenue from site leasing is recorded monthly and recognized on a straight-line basis over the current term of the related lease 

agreements, which are generally five to ten years. Receivables recorded related to the straight-lining of site leases are reflected in other 
assets on the Consolidated Balance Sheets. Rental amounts received in advance are recorded as deferred revenue on the Consolidated 
Balance Sheets.  

Site development projects in which we perform consulting services include contracts on a time and materials basis or a fixed 

price basis. Time and materials based contracts are billed at contractual rates and revenue is recognized as the services are rendered. 
For those site development contracts in which we perform work on a fixed price basis, site development billing (and revenue 
recognition) is based on the completion of agreed upon phases of the project on a per site basis. Upon the completion of each phase on 
a per site basis, we recognize the revenue related to that phase. Site development projects generally take from 3 to 12 months to 
complete. Amounts billed in advance (collected or uncollected) are recorded as deferred revenue on our Consolidated Balance Sheets. 

Revenue from construction projects is recognized on the percentage-of-completion method of accounting, determined by the 
percentage of cost incurred to date compared to management’s estimated total cost for each contract. This method is used because 
management considers total cost to be the best available measure of progress on the contracts. These amounts are based on estimates, 
and the uncertainty inherent in the estimates initially is reduced as work on the contracts nears completion. The asset “costs and 
estimated earnings in excess of billings on uncompleted contracts” represents costs incurred and revenues recognized in excess of 
amounts billed. The liability “billings in excess of costs and estimated earnings on uncompleted contracts,” included within other 
current liabilities on our Consolidated Balance Sheets, represents billings in excess of costs incurred and revenues recognized. 
Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined to be probable.  

We perform periodic credit evaluations of our customers. We monitor collections and payments from our customers and 
maintain a provision for estimated credit losses based upon historical experience, specific customer collection issues identified, and 
past due balances as determined based on contractual terms. Interest is charged on outstanding receivables from customers on a case 
by case basis in accordance with the terms of the respective contracts or agreements with those customers. Amounts determined to be 
uncollectible are written off against the allowance for doubtful accounts in the period in which uncollectibility is determined to be 
probable.  

Asset Impairment  

We evaluate individual long-lived and related assets with finite lives for indicators of impairment to determine when an 
impairment analysis should be performed. We evaluate our tower assets and current contract intangibles at the tower level, which is 
the lowest level for which identifiable cash flows exists. We evaluate our network location intangibles for impairment at the tower 
leasing business level whenever indicators of impairment are present. We have established a policy to at least annually evaluate our 
tower assets and current contract intangibles for impairment.  

We record an impairment charge when we believe an investment in towers or related assets has been impaired, such that future 
undiscounted cash flows would not recover the then current carrying value of the investment in the tower and related intangible. If the 
future undiscounted cash flows are lower than the carrying value of the investment in the tower and related intangible, we calculate 
future discounted cash flows and compare those amounts to the carrying value. We record an impairment charge for any amounts 
lower than the carrying value. Estimates and assumptions inherent in the impairment evaluation include, but are not limited to, general 
market and economic conditions, historical operating results, geographic location, lease-up potential, and expected timing of lease-up. 
In addition, we make certain assumptions in determining an asset’s fair value for the purpose of calculating the amount of an 
impairment charge.  

Acquisitions 

In January 2017, the FASB issued ASU 2017-01, Clarifying the Definition of a Business. ASU 2017-01 provides revised 

guidance to determine when an acquisition meets the definition of a business or when the acquisition should be accounted for as an 
asset acquisition. We adopted this standard effective January 1, 2017 and all changes will be accounted for prospectively. The 
adoption of ASU 2017-01 did not have a material impact on our unaudited consolidated financial statements and related disclosures. 

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Under the new standard, our acquisitions will generally qualify for asset acquisition treatment under ASC 360, Property, Plant, 
and Equipment, rather than business combination treatment under ASC 805 Business Combinations. For acquisitions which qualify as 
asset acquisitions, the aggregate purchase price is allocated on a relative fair value basis to towers and related intangible assets. For 
asset acquisitions, external, direct transaction costs will be capitalized as a component of the cost of the asset acquired. We will 
continue to expense internal acquisition costs as incurred. 

We account for business combinations under the acquisition method of accounting. The assets and liabilities acquired are 
recorded at fair market value at the date of each acquisition and the results of operations of the acquired assets are included with those 
from the dates of the respective acquisitions. We continue to evaluate all acquisitions for a period not to exceed one year after the 
applicable closing date of each transaction to determine whether any additional adjustments are needed to the allocation of the 
purchase price paid for the assets acquired and liabilities assumed as a result of information available at the acquisition date.  

The fair values of net assets acquired are based on management’s estimates and assumptions, as well as other information 

compiled by management, including valuations that utilize customary valuation procedures and techniques. The fair value estimates 
are based on available historical information and on future expectations and assumptions deemed reasonable by management at the 
time. If the actual results differ from the estimates and judgments used in these fair values, the amounts recorded in the consolidated 
financial statements could be subject to a possible impairment of the intangible assets, or require acceleration of the amortization 
expense of intangible assets in subsequent periods.  

The intangible assets represent the value associated with the current leases at the acquisition date (“Current contract 

intangibles”) and future tenant leases anticipated to be added to the towers (“Network location intangibles”) and were calculated using 
the discounted values of the current or future expected cash flows. The intangible assets are estimated to have a useful life consistent 
with the useful life of the related tower assets, which is typically 15 years. 

In connection with certain acquisitions, we may agree to pay contingent consideration (or earnouts) in cash or stock if the 

communication sites or businesses that are acquired meet or exceed certain performance targets over a period of one to three years 
after they have been acquired. Contingent consideration in connection with asset acquisitions will be recognized at the time when the 
contingency is resolved or becomes payable and will increase the cost basis of the assets acquired. We accrue for contingent 
consideration in connection with business combinations at fair value as of the date of the acquisition. All subsequent changes in fair 
value of contingent consideration payable in cash are recorded through Consolidated Statements of Operations. (cid:3)

RESULTS OF OPERATIONS 

This report presents our financial results and other financial metrics after eliminating the impact of changes in foreign currency 

exchange rates.  We believe that providing these financial results and metrics on a constant currency basis, which are non-GAAP 
measures, gives management and investors the ability to evaluate the performance of our business without the impact of foreign 
currency exchange rate fluctuations.  We eliminate the impact of changes in foreign currency exchange rates by dividing the current 
period’s financial results by the average monthly exchange rates of the prior year period, as well as by eliminating the impact of the 
remeasurement of our intercompany loans.  

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Year Ended 2017 Compared to Year Ended 2016 

Revenues and Segment Operating Profit:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 1,308,389   $ 

 1,273,866   $ 

 —   $ 

 34,523    

 2.7% 

 314,784    

 264,204    

 17,423    

 33,157    

 12.5% 

 104,501    

 95,055    

 —    

 9,446    

  $ 

 1,727,674   $ 

 1,633,125   $ 

 17,423   $ 

 77,126    

 9.9% 

 4.7% 

  $ 

 260,826   $ 

 260,941   $ 

 —   $ 

 (115)    

 (0.0%) 

 98,701    

 81,274    

 86,785    

 78,682    

 6,100    

 —    

 11,327    

 8,103    

  $ 

 446,312   $ 

 420,897   $ 

 6,100   $ 

 19,315    

 13.9% 

 10.3% 

 4.6% 

  $ 

 1,047,563   $ 

 1,012,925   $ 

 —   $ 

 34,638    

 3.4% 

 216,083    

 182,930    

 11,323    

 21,830    

 11.9% 

 17,716    

 16,373    

 —    

 1,343    

 8.2% 

Revenues 

Domestic site leasing 

International site leasing 

Site development 

Total 

Cost of Revenues 

Domestic site leasing 

International site leasing 

Site development 

Total 

Operating Profit 

Domestic site leasing 

International site leasing 

Site development 

Revenues 

Domestic site leasing revenues increased $34.5 million for the year ended December 31, 2017, as compared to the prior year, 
due largely to (i) revenues from 438 towers acquired and 97 towers built since January 1, 2016 and (ii) organic site leasing growth, 
primarily from monetary lease amendments for additional equipment added to our towers as well as new leases and contractual rent 
escalators, partially offset by lease non-renewals primarily by MetroPCS, Clearwire, and Cricket. 

International site leasing revenues increased $50.6 million for the year ended December 31, 2017, as compared to the prior year. 

On a constant currency basis, international site leasing revenues increased $33.2 million. These changes were primarily due to (i) 
revenues from 1,518 towers acquired and 739 towers built since January 1, 2016, (ii) organic site leasing growth from new leases and 
contractual escalators, and (iii) an increase in reimbursable pass-through expenses. Site leasing revenue in Brazil represented 13.4% of 
total site leasing revenue for the period.  No other individual international market represented more than 3% of our total site leasing 
revenue. 

Site development revenues increased $9.4 million for the year ended December 31, 2017, as compared to prior year, as a result 

of increased carrier activity. 

Operating Profit 

Domestic site leasing segment operating profit increased $34.6 million for the year ended December 31, 2017, as compared to 

the prior year, primarily due to additional profit generated by (i) towers acquired and built since January 1, 2016 and organic site 
leasing growth as noted above, (ii) continued control of our site leasing cost of revenue, and (iii) the positive impact of our ground 
lease purchase program. 

International site leasing segment operating profit increased $33.2 million for the year ended December 31, 2017, as compared 

to the prior year. On a constant currency basis, international site leasing segment operating profit increased $21.8 million. These 
changes were primarily due to towers acquired and built since January 1, 2016 and organic site leasing growth as noted above, 
partially offset by increases in ground rent and repairs and maintenance costs. 

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Site development segment operating profit increased $1.3 million for the year ended December 31, 2017, as compared to the 

prior year, primarily due to an increase in revenue from increased carrier activity partially offset by lower margins due to the type of 
work performed. 

Selling, General, and Administrative Expenses:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 67,263   $ 

 72,701   $ 

 —   $ 

 (5,438)    

 (7.5%) 

 24,320    

 35,897    

 1,005    

 (12,582)    

 (35.1%) 

  $ 

 91,583   $ 

 108,598   $ 

 1,005   $ 

 (18,020)    

 (16.6%) 

 15,433    

 13,039    

 23,681    

 21,712    

 —    

 —    

 2,394    

 18.4% 

 1,969    

 9.1% 

  $ 

 130,697   $ 

 143,349   $ 

 1,005   $ 

 (13,657)    

 (9.5%) 

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

Selling, general, and administrative expenses decreased $12.7 million for the year ended December 31, 2017, as compared to the 

prior year. On a constant currency basis, selling, general, and administrative expenses decreased $13.7 million. These changes were 
primarily as a result of decreases in the provision for doubtful accounts, which included the $16.5 million Oi reserve recorded in the 
second quarter of 2016, and REIT conversion expenses, partially offset by increases in non-cash compensation, personnel, salaries, 
benefits, and other support costs. 

Acquisition Related Adjustments and Expenses: 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

Domestic site leasing 

International site leasing 

Total 

  $ 

 8,171   $ 

 6,233   $ 

 4,196    

 6,907    

  $ 

 12,367   $ 

 13,140   $ 

 —   $ 

 211    

 211   $ 

 1,938    

 31.1% 

 (2,922)    

 (42.3%) 

 (984)    

 (7.5%) 

Acquisition related adjustments and expenses decreased $0.8 million for the year ended December 31, 2017, as compared to the 

prior year. On a constant currency basis, acquisition related adjustments and expenses decreased $1.0 million. These changes were 
primarily as a result of changes in our estimated pre-acquisition contingencies as compared to the prior year period and a reduction in 
third party acquisition costs expensed in the current year as compared to the prior year. 

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Asset Impairment and Decommission Costs: 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 29,523   $ 

 26,073   $ 

 6,994    

 1,824    

  $ 

 36,517   $ 

 27,897   $ 

 180    

 —    

 —    

 2,345    

 —   $ 

 318    

 318   $ 

 —    

 —    

 3,450    

 13.2% 

 4,852    

 266.0% 

 8,302    

 29.8% 

 180    

NM

 (2,345)    

 (100.0%) 

  $ 

 36,697   $ 

 30,242   $ 

 318   $ 

 6,137    

 20.3% 

Domestic site leasing 

International site leasing 

Total site leasing 

Site Development 

Not identified by segment 

Total 

Asset impairment and decommission costs increased $6.5 million for the year ended December 31, 2017 as compared to the 

prior year. On a constant currency basis, asset impairment and decommission costs increased $6.1 million. These changes were 
primarily as a result of a $8.9 million gain on the sale of fiber assets recorded in the prior year period, partially offset by a $2.3 million 
decrease in write-off and disposal costs related to our former corporate headquarters building. 

Depreciation, Accretion, and Amortization Expense: 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 498,842   $ 

 509,108   $ 

 —   $ 

 (10,266)    

 (2.0%) 

 135,155    

 119,466    

 7,457    

 8,232    

 6.9% 

  $ 

 633,997   $ 

 628,574   $ 

 7,457   $ 

 (2,034)    

 (0.3%) 

 2,580    

 6,523    

 3,402    

 6,213    

 —    

 —    

 (822)    

 (24.2%) 

 310    

 5.0% 

  $ 

 643,100   $ 

 638,189   $ 

 7,457   $ 

 (2,546)    

 (0.4%) 

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

Depreciation, accretion, and amortization expense increased $4.9 million for the year ended December 31, 2017, as compared to 
the prior year. On a constant currency basis, depreciation, accretion, and amortization expense decreased $2.5 million. These changes 
were primarily due to a decrease in domestic site leasing depreciation associated with assets that became fully depreciated since the 
prior year period, partially offset by additional international site leasing depreciation associated with an increase in the number of 
towers we acquired and built since January 1, 2016. 

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Operating Income (Loss):  

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 443,764   $ 

 398,810   $ 

 —   $ 

 44,954    

 11.3% 

 45,418    

 18,836    

 2,332    

 24,250    

 128.7% 

  $ 

 489,182   $ 

 417,646   $ 

 2,332   $ 

 69,204    

 16.6% 

 (477)    

 (68)    

 (30,204)    

 (30,270)    

 —    

 —    

 (409)    

 601.5% 

 66    

 (0.2%) 

  $ 

 458,501   $ 

 387,308   $ 

 2,332   $ 

 68,861    

 17.8% 

Domestic site leasing operating income increased $45.0 million for the year ended December 31, 2017, as compared to the prior 
year, primarily due to higher segment operating profit and decreases in depreciation, accretion, and amortization expense, and selling, 
general, and administrative expenses, partially offset by increases in asset impairment, decommission costs, and acquisition related 
adjustments and expenses. 

International site leasing operating income increased $26.6 million for the year ended December 31, 2017, as compared to the 

prior year. On a constant currency basis, international site leasing operating income increased $24.3 million. These changes were 
primarily due to higher segment operating profit and decreases in selling, general, and administrative expenses primarily resulting 
from the $16.5 million Oi reserve and acquisition related adjustments and expenses, partially offset by increases in depreciation, 
accretion, and amortization expenses, and asset impairment and decommission costs. 

Site development operating income decreased $0.4 million for the year ended December 31, 2017, as compared to the prior 

year, primarily due to increases in selling, general, and administrative expenses and asset impairment and decommission costs, 
partially offset by an increase in segment operating profit and a decrease in depreciation, accretion, and amortization expense. 

Other Income (Expense):  

Interest income 

Interest expense 

Non-cash interest expense 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

  $ 

 11,337   $ 

 10,928   $ 

 711   $ 

(in thousands) 

 (323,749)    

 (329,171)    

 (2,879)    

 (2,203)    

 (2)    

 —    

 —    

 —    

 (302)    

 5,424    

 (676)    

 (804)    

 (2.8%) 

 (1.6%) 

 30.7% 

 3.8% 

 50,740    

 (96.3%) 

Amortization of deferred financing fees 

 (21,940)    

 (21,136)    

Loss from extinguishment of debt, net 

 (1,961)    

 (52,701)    

Other income (expense), net 

 (2,418)    

 94,278    

 (99,624)    

 2,928    

 3.1% 

Total 

  $ 

 (341,610)   $ 

 (300,005)   $ 

 (98,915)   $ 

 57,310    

 (19.1%) 

Interest income increased $0.4 million for the year ended December 31, 2017, as compared to the prior year. On a constant 

currency basis, interest income decreased $0.3 million. These changes were primarily due to a lower average interest rate offset by a 
higher amount of interest bearing deposits held in Brazil as compared to the prior year. 

Interest expense decreased $5.4 million, on an actual and constant currency basis, for the year ended December 31, 2017, as 

compared to the prior year, due to the lower weighted average interest rate on debt, partially offset by a higher average principal 
amount of cash-interest bearing debt outstanding as compared to the prior year. The decrease primarily resulted from the repayment of 
the 2010-2C Tower Securities in July 2016, the 5.75% Senior Notes in August 2016, the 5.625% Senior Notes in October 2016, and 

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the 2012-1C Tower Securities in April 2017, partially offset by the issuance of the 2016-1C Tower Securities in July 2016, 2016 
Senior Notes in August 2016, 2017-1C Tower Securities in April 2017, 2017 Senior Notes in October 2017, and a higher average 
balance outstanding on the Revolving Credit Facility in the current year period. 

Non-cash interest expense increased $0.7 million for the year ended December 31, 2017, as compared to the prior year, 

primarily due to the amortization of the discount related to the 2016 Senior Notes (defined below) issued in August 2016. 

Amortization of deferred financing fees increased $0.8 million for the year ended December 31, 2017, as compared to the prior 

year, primarily resulting from the issuance of the 2017-1C Tower Securities in April 2017, the 2016-1C Tower Securities in July 2016, 
the 2016 Senior Notes in August 2016, and the 2017 Senior Notes in October 2017, partially offset by the repayment of the 2010-2C 
Tower Securities in July 2016, the 2012-1C Tower Securities in April 2017, the 5.75% Senior Notes in August 2016, and the 5.625% 
Senior Notes in October 2016. 

Loss from extinguishment of debt was $2.0 million for the year ended December 31, 2017 due to the write-off of unamortized 
financing costs associated with the repayment of the 2012-1C Tower Securities in April 2017.  Loss from the extinguishment of debt 
was $52.7 million for the year ended December 31, 2016 due to the payment of a $25.8 million call premium and the write-off of $7.7 
million in deferred financing fees on the redemption of the 5.75% Senior Notes, the payment of a $14.1 million call premium and the 
write-off of $4.1 million in deferred financing fees on the redemption of the 5.625% Senior Notes, and the write-off of $1.0 million in 
deferred financing fees related to redemption of the 2010-2C Tower Securities.  

Other income (expense), net includes an $8.8 million loss on the remeasurement of a U.S. dollar denominated intercompany 

loan with a Brazilian subsidiary for the year ended December 31, 2017, while the prior year included a $90.0 million gain.  

Provision for Income Taxes: 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

Provision for income taxes 

  $ 

 (13,237)   $ 

 (11,065)   $ 

 (76)   $ 

 (2,096)    

 18.9% 

Provision for income taxes increased $2.2 million, on an actual and constant currency basis, for the year ended December 31, 

2017, as compared to the prior year. These changes were primarily due to an increase in state tax provisions from becoming a taxpayer 
in additional jurisdictions. 

Net Income:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2017 

2016 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

Net income  

  $ 

 103,654   $ 

 76,238   $ 

 (96,507)   $ 

 123,923    

 162.5% 

Net income increased $27.4 million for the year ended December 31, 2017, as compared to the prior year. On a constant 
currency basis, net income increased $123.9 million. These changes were primarily due to an increase in operating income, decreases 
in interest expense and loss from extinguishment of debt, net, partially offset by fluctuations in our foreign currency exchange rates 
including changes recorded on the remeasurement of the intercompany loans. 

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Year Ended 2016 Compared to Year Ended 2015  

Revenues and Segment Operating Profit:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 1,273,866   $ 

 1,236,758   $ 

 —   $ 

 37,108    

 3.0% 

 264,204    

 243,876    

 (10,305)    

 30,633    

 12.6% 

 95,055    

 157,840    

 —    

 (62,785)    

 (39.8%) 

  $ 

 1,633,125   $ 

 1,638,474   $ 

 (10,305)   $ 

 4,956    

 0.3% 

  $ 

 260,941   $ 

 252,493   $ 

 —   $ 

 8,448    

 3.3% 

 81,274    

 72,162    

 (3,599)    

 12,711    

 17.6% 

 78,682    

 119,744    

 —    

 (41,062)    

 (34.3%) 

  $ 

 420,897   $ 

 444,399   $ 

 (3,599)   $ 

 (19,903)    

 (4.5%) 

  $ 

 1,012,925   $ 

 984,265   $ 

 —   $ 

 28,660    

 2.9% 

 182,930    

 171,714    

 (6,706)    

 17,922    

 10.4% 

 16,373    

 38,096    

 —    

 (21,723)    

 (57.0%) 

Revenues 

Domestic site leasing 

International site leasing 

Site development 

Total 

Cost of Revenues 

Domestic site leasing 

International site leasing 

Site development 

Total 

Operating Profit 

Domestic site leasing 

International site leasing 

Site development 

Revenues 

Domestic site leasing revenues increased $37.1 million for the year ended December 31, 2016, as compared to the prior year, 
due largely to (i) revenues from 951 towers acquired and 183 towers built since January 1, 2015 and (ii) organic site leasing growth, 
primarily from monetary lease amendments for additional equipment added to our towers as well as new leases and contractual rent 
escalators, partially offset by non-lease renewals in 2015 primarily related to carrier consolidation, including Sprint’s iDEN network, 
which impacted our year-over-year growth rates during 2016.  

International site leasing revenues increased $20.3 million for the year ended December 31, 2016, as compared to the prior year. 

On a constant currency basis, international site leasing revenues increased $30.6 million. These changes were due largely to (i) 
revenues from 473 towers acquired and 640 towers built since January 1, 2015, (ii) organic site leasing growth from new leases and 
contractual rent escalators, and (iii) an increase in reimbursable pass-through expenses. Site leasing revenue in Brazil represented 
11.6% of total site leasing revenue for the period. No other individual international market represented more than 3% of our total site 
leasing revenue.  

Site development revenues decreased $62.8 million for the year ended December 31, 2016, as compared to the prior year, as a 

result of a decrease in the volume of work performed, particularly as it related to Sprint.  

Operating Profit 

Domestic site leasing segment operating profit increased $28.7 million for the year ended December 31, 2016, as compared to 

the prior year, primarily due to additional profit generated by (i) towers acquired and built since January 1, 2015 and organic site 
leasing growth as noted above, (ii) improving control of our site leasing cost of revenue, and (iii) the positive impact of our ground 
lease purchase program. 

International site leasing segment operating profit increased $11.2 million for the year ended December 31, 2016, as compared 

to the prior year. On a constant currency basis, international site leasing segment operating profit increased $17.9 million. These 
changes were primarily due to towers acquired and built since January 1, 2015 and organic site leasing growth as noted above, 
partially offset by increases in cost of revenues.  

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Site development segment operating profit decreased $21.7 million for the year ended December 31, 2016, as compared to the 

prior year, primarily due to a decrease in the volume of work performed, particularly as it related to Sprint.  

Selling, General, and Administrative Expenses:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 72,701   $ 

 67,413   $ 

 —   $ 

 5,288    

 7.8% 

 35,897    

 16,196    

 (343)    

 20,044    

 123.8% 

  $ 

 108,598   $ 

 83,609   $ 

 (343)   $ 

 25,332    

 30.3% 

 13,039    

 12,247    

 21,712    

 19,095    

 —    

 —    

 792    

 2,617    

  $ 

 143,349   $ 

 114,951   $ 

 (343)   $ 

 28,741    

 6.5% 

 13.7% 

 25.0% 

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

Selling, general, and administrative expenses increased $28.4 million for the year ended December 31, 2016, as compared to the 

prior year. On a constant currency basis, selling, general, and administrative expenses increased $28.7 million. These changes were 
primarily as a result of the $16.5 million Oi reserve recorded in the second quarter of 2016 as well as increases in REIT conversion 
related costs, bad debt expense, non-cash compensation, and other support costs due in large part to our continued portfolio expansion.  

Acquisition Related Adjustments and Expenses:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

Domestic site leasing 

International site leasing 

Total 

  $ 

 6,233   $ 

 9,975   $ 

 —   $ 

 (3,742)    

 (37.5%) 

 6,907    

 1,889    

  $ 

 13,140   $ 

 11,864   $ 

 (107)    

 (107)   $ 

 5,125    

 271.3% 

 1,383    

 11.7% 

Acquisition related adjustments and expenses increased $1.3 million for the year ended December 31, 2016, as compared to the 

prior year. On a constant currency basis, acquisition related adjustments and expenses increased $1.4 million. These changes were 
primarily as a result of an increase in the number of international towers we acquired and changes in our estimated pre-acquisition 
contingencies as compared to the prior year, partially offset by a decrease in the number of domestic towers we acquired. 

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Asset Impairment and Decommission Costs:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 26,073   $ 

 93,977   $ 

 —   $ 

 (67,904)    

 (72.3%) 

 1,824    

 806    

 (74)    

 1,092    

 135.5% 

  $ 

 27,897   $ 

 94,783   $ 

 (74)   $ 

 (66,812)    

 (70.5%) 

 2,345    

 —    

 —    

 2,345    

 —% 

  $ 

 30,242   $ 

 94,783   $ 

 (74)   $ 

 (64,467)    

 (68.0%) 

Domestic site leasing 

International site leasing 

Total site leasing 

Not identified by segment 

Total 

Asset impairment and decommission costs decreased $64.5 million, on an actual and constant currency basis, for the year ended 

December 31, 2016, as compared to the prior year. These changes were primarily as a result of a $56.7 million impairment charge in 
the third quarter of 2015 related to fiber assets acquired in the 2012 Mobilitie transaction, and an $8.9 million gain on the sale of fiber 
assets recorded in 2016.   

Depreciation, Accretion, and Amortization Expense:  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

  $ 

 509,108   $ 

 534,436   $ 

 —   $ 

 (25,328)    

 (4.7%) 

(in thousands) 

 119,466    

 118,886    

 (4,767)    

 5,347    

  $ 

 628,574   $ 

 653,322   $ 

 (4,767)   $ 

 (19,981)    

 3,402    

 6,213    

 3,662    

 3,037    

 —    

 —    

 (260)    

 3,176    

 104.6% 

  $ 

 638,189   $ 

 660,021   $ 

 (4,767)   $ 

 (17,065)    

 (2.6%) 

 4.5% 

 (3.1%) 

 (7.1%) 

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

Depreciation, accretion, and amortization expense decreased $21.8 million for the year ended December 31, 2016, as compared 

to the prior year. On a constant currency basis, depreciation, accretion, and amortization expense decreased $17.1 million. These 
changes were primarily due to a decrease in depreciation associated with assets that became fully depreciated since the prior year, 
partially offset by additional depreciation associated with the increase in the number of towers we acquired and built since January 1, 
2015. 

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Operating Income (Loss):  

Domestic site leasing 

International site leasing 

Total site leasing 

Site development 

Not identified by segment 

Total 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

  $ 

 398,810   $ 

 278,464   $ 

 —   $ 

 120,346    

 43.2% 

 18,836    

 33,937    

 (1,415)    

 (13,686)    

 (40.3%) 

  $ 

 417,646   $ 

 312,401   $ 

 (1,415)   $ 

 106,660    

 34.1% 

 (68)    

 22,187    

 (30,270)    

 (22,132)    

 —    

 —    

  $ 

 387,308   $ 

 312,456   $ 

 (1,415)   $ 

 (22,255)    

 (100.3%) 

 (8,138)    

 76,267    

 36.8% 

 24.4% 

Domestic site leasing operating income increased $120.3 million for the year ended December 31, 2016, as compared to the 

prior year, primarily due to higher segment operating profit and decreases in asset impairment and decommission costs, depreciation, 
accretion, and amortization expense, and acquisition related adjustments and expenses, partially offset by an increase in selling 
general, and administrative expenses.  

International site leasing operating income decreased $15.1 million for the year ended December 31, 2016, as compared to the 

prior year. On a constant currency basis, international site leasing operating income decreased $13.7 million. These changes were 
primarily due to the $16.5 million Oi reserve recorded in the second quarter of 2016, increases in selling, general, and administrative 
expenses, acquisition related adjustments and expenses, depreciation, accretion, and amortization expense, and asset impairment and 
decommission costs, partially offset by higher segment operating profit.  

Site development operating income decreased $22.3 million for the year ended December 31, 2016, as compared to the prior 

year, primarily due to lower segment operating profit and an increase in selling, general, and administrative expenses, partially offset 
by a decrease in depreciation, accretion, and amortization expense. 

Other Income (Expense):  

Interest income 

Interest expense 

Non-cash interest expense 

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

  $ 

 10,928   $ 

 3,894   $ 

 (402)   $ 

 7,436    

 191.0% 

(in thousands) 

 (329,171)    

 (322,366)    

 (2,203)    

 (1,505)    

 5    

 —    

 —    

 —    

 (6,810)    

 (698)    

 (1,982)    

 2.1% 

 46.4% 

 10.3% 

 (51,918)    

 6,630.7% 

Amortization of deferred financing fees 

 (21,136)    

 (19,154)    

Loss from extinguishment of debt, net 

 (52,701)    

 (783)    

Other (expense) income, net 

 94,278    

 (139,137)    

 270,184    

 (36,769)    

Total 

  $ 

 (300,005)   $ 

 (479,051)   $ 

 269,787   $ 

 (90,741)    

 26.4% 

 18.9% 

Interest income increased $7.0 million for the year ended December 31, 2016, as compared to the prior year. On a constant 

currency basis, interest income increased $7.4 million. These changes were primarily due to a higher amount of interest bearing 
deposits held as compared to the prior year.  

Interest expense increased $6.8 million, on an actual and constant currency basis, for the year ended December 31, 2016, as 

compared to the prior year, due to the higher average principal amount of cash-interest bearing debt outstanding as compared to the 
prior year, primarily resulting from the issuance of the 2015 Term Loan (defined below) in June 2015, the 2015-1C Tower Securities 
(defined below) in October 2015, the 2016-1C Tower Securities (defined below) in July 2016, and the 2016 Senior Notes (defined 

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below) in August 2016, partially offset by the repayment of the 2012-1C Term Loan in November 2015, the 2010-2C Tower 
Securities (defined below) in July 2016, the 5.75% Senior Notes (defined below) in August 2016, and the 5.625% Senior Notes 
(defined below) in October 2016, and a lower average balance outstanding under the Revolving Credit Facility in the current year.  

Non-cash interest expense increased $0.7 million for the year ended December 31, 2016, as compared to the prior year, 

primarily due the amortization of the discount related to the 2015 Term Loan (defined below) issued in June 2015 and the 2016 Senior 
Notes (defined below) issued in August 2016. 

Amortization of deferred financing fees increased $2.0 million for the year ended December 31, 2016, as compared to the prior 

year, primarily resulting from the issuance of the 2015 Term Loan (defined below) in June 2015, the 2015-1C Tower Securities 
(defined below) in October 2015, the 2016-1C Tower Securities (defined below) in July 2016, and the 2016 Senior Notes (defined 
below) in August 2016, partially offset by the repayment of the 2010-2C Tower Securities (defined below) in July 2016, the 5.75% 
Senior Notes (defined below) in August 2016, and the 5.625% Senior Notes (defined below) in October 2016.   

Loss from the extinguishment of debt was $52.7 million for the year ended December 31, 2016 due to the payment of a $25.8 
million call premium and the write-off of $7.7 million in deferred financing fees on the redemption of the 5.75% Senior Notes, the 
payment of a $14.1 million call premium and the write-off of $4.1 million in deferred financing fees on the redemption of the 5.625% 
Senior Notes, and the write-off of $1.0 million in deferred financing fees related to redemption of the 2010-2C Tower Securities. Loss 
from extinguishment of debt was $0.8 million for the year ended December 31, 2015 due to the write off of deferred financing fees 
related to the prepayment of the 2012-1 Term Loan.  

Other income (expense), net includes a $90.0 million gain on the remeasurement of intercompany loans for the year ended 
December 31, 2016. The prior year period included a $178.9 million loss. Other income (expense), net for the year ended December 
31, 2015 included a gain on the sale of our investment in Extenet of $37.2 million.  

Net Income (Loss):  

For the year ended 

December 31, 

Foreign 

Constant 

Constant 

Currency 

2016 

2015 

  Currency Impact 

  Currency Change    % Change 

(in thousands) 

Net income (loss) 

  $ 

 76,238   $ 

 (175,656)   $ 

 268,381   $ 

 (16,487)    

 9.4% 

Net income increased $251.9 million for the year ended December 31, 2016, as compared to the prior year. On a constant 

currency basis, net income decreased $16.5 million. These changes were primarily due to an increases in operating income, partially 
offset by increases in loss from extinguishment of debt, net, other income (expense), net, and interest expense. 

NON-GAAP FINANCIAL MEASURES 

This report contains information regarding a non-GAAP measure, Adjusted EBITDA. We have provided below a description of 

Adjusted EBITDA, a reconciliation of Adjusted EBITDA to its most directly comparable GAAP measure and an explanation as to 
why management utilizes this measure. This report also presents our financial results and other financial metrics after eliminating the 
impact of changes in foreign currency exchange rates and the Oi reserve recorded in the second quarter of 2016. We believe that 
providing these financial results and metrics on a constant currency basis, which are non-GAAP measures, gives management and 
investors the ability to evaluate the performance of our business without the impact of foreign currency exchange rate fluctuations.  
We eliminate the impact of changes in foreign currency exchange rates by dividing the current period’s financial results by the 
average monthly exchange rates of the prior year period, as well as by eliminating the impact of the remeasurement of our 
intercompany loans. In addition, we believe that excluding the Oi reserve, which represents a $16.5 million one-time provision for 
doubtful accounts recorded in the prior year, provides management and investors the ability to better analyze our core results without 
the impact of what we believe is a non-recurring event. 

Adjusted EBITDA  

We define Adjusted EBITDA as net income excluding the impact of non-cash straight-line leasing revenue, non-cash straight-

line ground lease expense, non-cash compensation, net loss from extinguishment of debt, other income and expenses, acquisition 

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related adjustments and expenses, asset impairment and decommission costs, interest income, interest expenses, depreciation, 
accretion, and amortization, and provision for or benefit from taxes.  

We believe that Adjusted EBITDA is useful to investors or other interested parties in evaluating our financial performance. 
Adjusted EBITDA is the primary measure used by management (1) to evaluate the economic productivity of our operations and (2) for 
purposes of making decisions about allocating resources to, and assessing the performance of, our operations. Management believes 
that Adjusted EBITDA helps investors or other interested parties to meaningfully evaluate and compare the results of our operations 
(1) from period to period and (2) to our competitors, by excluding the impact of our capital structure (primarily interest charges from 
our outstanding debt) and asset base (primarily depreciation, amortization and accretion) from our financial results. Management also 
believes Adjusted EBITDA is frequently used by investors or other interested parties in the evaluation of REITs. In addition, Adjusted 
EBITDA is a component of the calculation that has been used by our lenders to determine compliance with certain covenants under 
our Senior Credit Agreement and the indentures relating to the 2014 Senior Notes, 2016 Senior Notes, and 2017 Senior Notes. 
Adjusted EBITDA should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our 
performance.  

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Interest income 

Interest expense (1) 

For the year ended 
December 31, 

Foreign 

2017 

2016 

  Currency Impact 

Constant 
Currency 
  Currency Change    % Change 

Constant 

(in thousands) 

Net income  

  $ 

 103,654   $ 

 76,238   $ 

 (96,507)   $ 

 123,923    

 162.5% 

Non-cash straight-line leasing revenue 

 (16,419)    

 (31,650)    

 (1,110)    

 16,341    

 (51.6%) 

Non-cash straight-line ground lease expense 

 30,850    

 34,708    

Non-cash compensation 

 38,249    

 32,915    

Loss from extinguishment of debt, net 

 1,961    

 52,701    

 140    

 129    

 —    

 (3,998)    

 (11.5%) 

 5,205    

 15.8% 

 (50,740)    

 (96.3%) 

Other income (expense), net 

 2,418    

 (94,278)    

 99,624    

 (2,928)    

 3.1% 

Acquisition related adjustments and expenses   

 12,367    

 13,140    

Asset impairment and decommission costs 

 36,697    

 30,242    

 (11,337)    

 (10,928)    

 211    

 318    

 (711)    

 (984)    

 (7.5%) 

 6,137    

 20.3% 

 302    

 (2.8%) 

 348,568    

 352,510    

 2    

 (3,944)    

 (1.1%) 

Depreciation, accretion, and amortization 

 643,100    

 638,189    

 7,457    

 (2,546)    

 (0.4%) 

Provision for taxes (2) 

Adjusted EBITDA 

Oi reserve 

 14,026    

 12,708    

 1,204,134    

 1,106,495    

 (45)    

 9,508    

 1,363    

 10.7% 

 88,131      

 —    

 16,498    

 —    

 (16,498)      

Adjusted EBITDA excl. the Oi reserve 

  $ 

 1,204,134   $ 

 1,122,993   $ 

 9,508   $ 

 71,633      

For the year ended 
December 31, 

Foreign 

2016 

2015 

  Currency Impact 

Constant 
Currency 
  Currency Change    % Change 

Constant 

(in thousands) 

Net income (loss) 

  $ 

 76,238   $ 

 (175,656)   $ 

 268,381   $ 

 (16,487)    

 9.4% 

Non-cash straight-line leasing revenue 

 (31,650)    

 (49,064)    

Non-cash straight-line ground lease expense 

 34,708    

 34,204    

Non-cash compensation 

 32,915    

 28,747    

Loss from extinguishment of debt, net 

 52,701    

 783    

 (1,029)    

 (104)    

 (2)    

 —    

 18,443    

 (37.6%) 

 608    

 1.8% 

 4,170    

 14.5% 

 51,918    

 6,630.7% 

Other (expense) income, net 

 (94,278)    

 139,137    

 (270,184)    

 36,769    

 26.4% 

Acquisition related adjustments and expenses   

 13,140    

 11,864    

Asset impairment and decommission costs 

 30,242    

 94,783    

 (10,928)    

 (3,894)    

 (107)    

 (74)    

 402    

 1,383    

 11.7% 

 (64,467)    

 (68.0%) 

 (7,436)    

 191.0% 

Interest income 

Interest expense (1) 

 352,510    

 343,025    

 (5)    

 9,490    

 2.8% 

Depreciation, accretion, and amortization 

 638,189    

 660,021    

 (4,767)    

 (17,065)    

 (2.6%) 

Provision for taxes (2) 

Adjusted EBITDA 

Oi reserve 

 12,708    

 10,827    

 (9)    

 1,890    

 17.5% 

 1,106,495    

 1,094,777    

 (7,498)    

16,498    

 —    

 —    

 19,216      

 16,498      

Adjusted EBITDA excluding Oi reserve 

  $ 

 1,122,993   $ 

 1,094,777   $ 

 (7,498)   $ 

 35,714      

Interest expense includes interest expense, non-cash interest expense, and amortization of deferred financing fees.  

(1) 
(2)  Provision for taxes includes $789, $1,643, and $1,766 of franchise and gross receipts taxes for the year ended 2017, 2016, and 

2015, respectively, reflected in selling, general, and administrative expenses on the Consolidated Statement of Operations.  

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Adjusted EBITDA increased $81.1 million for the year ended December 31, 2017, as compared to the prior year. On a constant 
currency basis, adjusted EBITDA, excluding the Oi reserve, increased $71.6 million. These changes were primarily due to increases in 
domestic site leasing, international site leasing, and site development segment operating profit, partially offset by an increase in 
selling, general, and administrative expenses after excluding the Oi reserve. 

Adjusted EBITDA, excluding the Oi reserve, increased $28.2 million for the year ended December 31, 2016, as compared to the 

prior year. On a constant currency basis, adjusted EBITDA, excluding the Oi reserve, increased $35.7 million. These changes were 
primarily due to increases in domestic and international site leasing segment operating profit, partially offset by an increase in selling, 
general, and administrative expenses after excluding the Oi reserve and a decrease in site development segment operating profit.  

LIQUIDITY AND CAPITAL RESOURCES  

SBAC is a holding company with no business operations of its own. SBAC’s only significant asset is 100% of the outstanding 

capital stock of SBA Telecommunications, LLC (“Telecommunications”), which is also a holding company that owns equity interests 
in entities that directly or indirectly own all of our domestic and international towers and assets. We conduct all of our business 
operations through Telecommunications’ subsidiaries. Accordingly, our only source of cash to pay our obligations, other than 
financings, is distributions with respect to our ownership interest in our subsidiaries from the net earnings and cash flow generated by 
these subsidiaries.  

A summary of our cash flows is as follows:  

For the year ended December 31, 

2017 

2016 

2015 

Summary cash flow information 

(in thousands) 

Cash provided by operating activities 

  $ 

 818,470   $ 

 742,525   $ 

Cash used in investing activities 

Cash (used in) provided by financing activities 

Change in cash, cash equivalents, and restricted cash 

Effect of exchange rate changes on cash, cash equiv., 

and restricted cash 

 (605,107)  

 (294,574)  

 (81,211)  

 (464)  

 (428,235)  

 (288,557)  

 25,733  

 13,618  

Cash, cash equiv., and restr. cash, beginning of year 

 185,970  

 146,619  

Cash, cash equiv., and restr. cash, end of year 

  $ 

 104,295   $ 

 185,970   $ 

 723,030 

 (737,065) 

 75,751 

 61,716 

 (12,993) 

 97,896 

 146,619 

Operating Activities  

Cash provided by operating activities was $818.5 million for the year ended December 31, 2017 as compared to $742.5 million 

for the year ended December 31, 2016. The increase was primarily due to an increase in segment operating profit from the domestic 
site leasing, international site leasing, and site development operating segments, a decrease in selling, general, and administrative 
expenses, and a decrease in interest payments as compared to the prior year. 

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Investing Activities 

A detail of our cash capital expenditures is as follows: 

Acquisitions of towers and related intangible assets (1) 

  $ 

 392,902   $ 

 214,686   $ 

 525,802 

For the year ended 

December 31, 

2017 

2016 

2015 

(in thousands)  

Construction and related costs on new builds 

Augmentation and tower upgrades 

Land buyouts and other assets (2) 

Purchase and refurbishment of headquarters building 

Tower maintenance 

General corporate 

 69,407  

 100,736 

 68,790  

 43,028  

 48,645  

 —  

 38,123  

 62,149  

 —  

 30,091  

 27,718  

 5,135  

 4,734  

 61,410 

 83,728 

 12,961 

 28,626 

 4,974 

Total cash capital expenditures 

  $ 

 588,591   $ 

 416,817   $ 

 818,237 

(1) 

(2) 

The year ended December 31, 2017 excludes $63.3 million of acquisition costs funded through the issuance of 487,963 shares 
of Class A common stock. 
Excludes $18.8 million, $14.1 million, and $16.3 million spent to extend ground lease terms for the years ended December 31, 
2017, 2016, and 2015, respectively.  

Subsequent to December 31, 2017, we acquired 308 towers and related assets for $79.5 million in cash. 

During 2018, we expect to incur non-discretionary cash capital expenditures associated with tower maintenance and general 
corporate expenditures of $34.0 million to $44.0 million and discretionary cash capital expenditures, based on current acquisition 
obligations, planned new tower construction, forecasted tower augmentations, and forecasted ground lease purchases, of $530.0 
million to $550.0 million as well as potential, additional tower acquisitions not yet under contract. We expect to fund these cash 
capital expenditures from cash on hand, cash flow from operations, and borrowings under the Revolving Credit Facility or new 
financings. The exact amount of our future cash capital expenditures will depend on a number of factors including amounts necessary 
to support our tower portfolio, our new tower build and acquisition programs, and our ground lease purchase program. 

Financing Activities 

On January 12, 2017, the Board of Directors authorized a new stock repurchase plan, replacing the plan authorized on June 4, 

2015 which had a remaining authorization of $150.0 million. This plan authorized us to purchase, from time to time, up to $1.0 billion 
of our outstanding Class A common stock through open market repurchases in compliance with Rule 10b-18 under the Exchange Act 
and/or in privately negotiated transactions at management’s discretion based on market and business conditions, applicable legal 
requirements and other factors. During the year ended December 31, 2017, we repurchased 5.8 million shares of our Class A common 
stock under our stock repurchase program for $850.0 million, excluding commissions, at a weighted average price per share of 
$146.17. Shares repurchased were retired. 

During the year ended December 31, 2017, we borrowed $525.0 million and repaid $875.0 million under the Revolving Credit 
Facility. As of December 31, 2017, we had $40.0 million outstanding under the Revolving Credit Facility. Subsequent to December 
31, 2017, we borrowed an additional $55.0 million and repaid $20.0 million of the outstanding balance under the Revolving Credit 
Facility. As of the date of this filing, $75.0 million was outstanding under the Revolving Credit Facility. 

On February 16, 2018, our Board of Directors authorized a new $1.0 billion stock repurchase plan, replacing the prior plan 
authorized on January 12, 2017 which had a remaining authorization of $150.0 million. This new plan authorizes us to purchase, from 
time to time, up to $1.0 billion of our outstanding Class A common stock through open market repurchases in compliance with 

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Rule 10b-18 under the Exchange Act and/or in privately negotiated transactions at management’s discretion based on market and 
business conditions, applicable legal requirements and other factors. Shares repurchased will be retired. The new plan has no time 
deadline and will continue until otherwise modified or terminated by our Board of Directors at any time in its sole discretion. As of the 
date of this filing, we had the full $1.0 billion authorization remaining under the new plan. 

On January 20, 2017, SBA Senior Finance II repriced its senior secured term loans from a Eurodollar Rate plus 250 basis points 

(with a Eurodollar Rate floor of 0.75%) to a Eurodollar Rate plus 225 basis points (with a zero Eurodollar floor). 

On April 17, 2017, we, through a New York common law trust (the “Trust”), issued $760.0 million of 2017-1C Tower 
Securities (as defined below). The fixed interest rate on the 2017-1C Tower Securities is 3.168% per annum, payable monthly. Net 
proceeds from this offering were used to repay the entire $610.0 million aggregate principal amount, as well as accrued and unpaid 
interest, of the 2012-1C Tower Securities and for general corporate purposes.  

On October 13, 2017, we issued $750.0 million of 2017 Senior Notes (as defined below). The 2017 Senior Notes accrue interest 
at a rate of 4.0% per annum. Interest on the 2017 Senior Notes is due semi-annually on April 1 and October 1 of each year, beginning 
on April 1, 2018. Net proceeds from this offering were used to repay $460.0 million outstanding under the Revolving Credit Facility 
and for general corporate purposes.  

On February 16, 2018, we agreed to issue, through a Trust, $640.0 million of 2018-1C Tower Securities (as defined below), 
which offering is expected to close March 9, 2018. The fixed interest rate on the 2018-1C Tower Securities will be 3.448% per annum, 
payable monthly, and the net proceeds of this offering, in combination with borrowings under the Revolving Credit Facility, will be 
used to repay the entire aggregate principal amount of the 2013-1C Tower Securities ($425.0 million) and 2013-1D Tower Securities 
($330.0 million), as well as accrued and unpaid interest. We have classified $755.0 million of the combined 2013-1C Tower Securities 
and 2013-1D Tower Securities as a long-term obligation, as we intend to repay these securities with the net proceeds of the 2018-1C 
Tower Securities, in combination with borrowings under the Revolving Credit Facility.  

Registration Statements  

We have on file with the Commission a shelf registration statement on Form S-4 registering shares of Class A common stock 

that we may issue in connection with the acquisition of wireless communication towers or antenna sites and related assets or 
companies who own wireless communication towers, antenna sites, or related assets. During the year ended December 31, 2017, we 
issued 487,963 shares of Class A common stock under this registration statement. As of December 31, 2017, we had approximately 
1.2 million shares of Class A common stock remaining under this shelf registration statement.  

On March 3, 2015, we filed with the Commission an automatic shelf registration statement for well-known seasoned issuers on 
Form S-3ASR. This registration statement enables us to issue shares of our Class A common stock, preferred stock or debt securities 
either separately or represented by warrants, or depositary shares as well as units that include any of these securities. Under the rules 
governing automatic shelf registration statements, we will file a prospectus supplement and advise the Commission of the amount and 
type of securities each time we issue securities under this registration statement. No securities were issued under this registration 
statement from March 3, 2015 through the date of this filing. 

Debt Instruments and Debt Service Requirements  

Senior Credit Agreement 

On February 7, 2014, SBA Senior Finance II entered into a Second Amended and Restated Credit Agreement with several banks 
and other financial institutions or entities from time to time parties to the Second Amended and Restated Credit Agreement to, among 
other things, incur the 2014 Term Loan and amend certain terms of the existing senior credit agreement (as amended, the “Senior 
Credit Agreement”). 

Terms of the Senior Credit Agreement  

The Senior Credit Agreement, as amended, requires SBA Senior Finance II to maintain specific financial ratios, including (1) a 

ratio of Consolidated Total Debt to Annualized Borrower EBITDA not to exceed 6.5 times for any fiscal quarter, (2) a ratio of 
Consolidated Total Debt and Net Hedge Exposure (calculated in accordance with the Senior Credit Agreement) to Annualized 
Borrower EBITDA for the most recently ended fiscal quarter not to exceed 6.5 times for 30 consecutive days and (3) a ratio of 
Annualized Borrower EBITDA to Annualized Cash Interest Expense (calculated in accordance with the Senior Credit Agreement) of 

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not less than 2.0 times for any fiscal quarter. The Senior Credit Agreement contains customary affirmative and negative covenants 
that, among other things, limit the ability of SBA Senior Finance II and its subsidiaries to incur indebtedness, grant certain liens, make 
certain investments, enter into sale leaseback transactions, merge or consolidate, make certain restricted payments, enter into 
transactions with affiliates, and engage in certain asset dispositions, including a sale of all or substantially all of their property. The 
Senior Credit Agreement is also subject to customary events of default. Pursuant to the Second Amended and Restated Guarantee and 
Collateral Agreement, amounts borrowed under the Revolving Credit Facility, the Term Loans and certain hedging transactions that 
may be entered into by SBA Senior Finance II or the Subsidiary Guarantors (as defined in the Senior Credit Agreement) with lenders 
or their affiliates are secured by a first lien on the membership interests of SBA Telecommunications, LLC, SBA Senior Finance, LLC 
and SBA Senior Finance II and on substantially all of the assets (other than leasehold, easement and fee interests in real property) of 
SBA Senior Finance II and the Subsidiary Guarantors.  

The Senior Credit Agreement, as amended, permits SBA Senior Finance II, without the consent of the other lenders, to request 

that one or more lenders provide SBA Senior Finance II with increases in the Revolving Credit Facility or additional term loans 
provided that after giving effect to the proposed increase in Revolving Credit Facility commitments or incremental term loans the ratio 
of Consolidated Total Debt to Annualized Borrower EBITDA would not exceed 6.5 times. SBA Senior Finance II’s ability to request 
such increases in the Revolving Credit Facility or additional term loans is subject to its compliance with customary conditions set forth 
in the Senior Credit Agreement including compliance, on a pro forma basis, with the financial covenants and ratios set forth therein 
and, with respect to any additional term loan, an increase in the margin on existing term loans to the extent required by the terms of 
the Senior Credit Agreement. Upon SBA Senior Finance II’s request, each lender may decide, in its sole discretion, whether to 
increase all or a portion of its Revolving Credit Facility commitment or whether to provide SBA Senior Finance II with additional 
term loans and, if so, upon what terms. 

Revolving Credit Facility under the Senior Credit Agreement  

The Revolving Credit Facility is governed by the Senior Credit Agreement. The Revolving Credit Facility consists of a 
revolving loan under which up to $1.0 billion aggregate principal amount may be borrowed, repaid and redrawn, based upon specific 
financial ratios and subject to the satisfaction of other customary conditions to borrowing. Amounts borrowed under the Revolving 
Credit Facility accrue interest, at SBA Senior Finance II’s election, at either (i) the Eurodollar Rate plus a margin that ranges from 
137.5 basis points to 200.0 basis points or (ii) the Base Rate plus a margin that ranges from 37.5 basis points to 100.0 basis points, in 
each case based on the ratio of Consolidated Total Debt to Annualized Borrower EBITDA, calculated in accordance with the Senior 
Credit Agreement. As of December 31, 2017, the balance outstanding under the Revolving Credit Facility was accruing interest at 
3.48% per annum. In addition, SBA Senior Finance II is required to pay a commitment fee of 0.25% per annum on the amount of 
unused commitment. If not earlier terminated by SBA Senior Finance II, the Revolving Credit Facility will terminate on, and SBA 
Senior Finance II will repay all amounts outstanding on or before, February 5, 2020. The proceeds available under the Revolving 
Credit Facility may be used for general corporate purposes. SBA Senior Finance II may, from time to time, borrow from and repay the 
Revolving Credit Facility. Consequently, the amount outstanding under the Revolving Credit Facility at the end of a period may not be 
reflective of the total amounts outstanding during such period. 

As of December 31, 2017, SBA Senior Finance II was in compliance with the financial covenants contained in the Senior Credit 

Agreement. 

During the year ended December 31, 2017, we borrowed $525.0 million and repaid $875.0 million under the Revolving Credit 

Facility. As of December 31, 2017, we had $40.0 million outstanding under the Revolving Credit Facility.  

Subsequent to December 31, 2017, we borrowed an additional $55.0 million and repaid $20.0 million of the outstanding balance 

under the Revolving Credit Facility. As of the date of this filing, $75.0 million was outstanding under the Revolving Credit Facility. 

Term Loans under the Senior Credit Agreement 

Repricing Amendment to the Senior Credit Agreement 

On January 20, 2017, SBA Senior Finance II amended its Senior Credit Agreement, primarily to reduce the stated rate of 
interest applicable to our senior secured term loans.  As amended, the senior secured term loans accrue interest, at SBA Senior Finance 

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II’s election, at either the Base Rate plus 125 basis points (with a zero Base Rate floor) or the Eurodollar Rate plus 225 basis points 
(with a zero Eurodollar Rate floor).  

2014 Term Loan 

The 2014 Term Loan consists of a senior secured term loan with an initial aggregate principal amount of $1.5 billion that 
matures on March 24, 2021. The 2014 Term Loan was issued at 99.75% of par value. As of December 31, 2017, the 2014 Term Loan 
was accruing interest at 3.82% per annum. Principal payments on the 2014 Term Loan commenced on September 30, 2014 and are 
being made in quarterly installments on the last day of each March, June, September, and December in an amount equal to $3.8 
million. SBA Senior Finance II has the ability to prepay any or all amounts under the 2014 Term Loan. We incurred deferred 
financing fees of approximately $14.1 million in relation to this transaction which are being amortized through the maturity date. 

During the year ended December 31, 2017, we repaid $15.0 million of principal on the 2014 Term Loan. As of December 31, 

2017, the 2014 Term Loan had a principal balance of $1,447.5 million.  

2015 Term Loan 

The 2015 Term Loan consists of a senior secured term loan with an initial aggregate principal amount of $500.0 million that 
matures on June 10, 2022. The 2015 Term Loan was issued at 99.0% of par value. As of December 31, 2017, the 2015 Term Loan was 
accruing interest at 3.82% per annum. Principal payments on the 2015 Term Loan commenced on September 30, 2015 and are being 
made in quarterly installments on the last day of each March, June, September, and December in an amount equal to $1.3 million. 
SBA Senior Finance II has the ability to prepay any or all amounts under the 2015 Term Loan. We incurred deferred financing fees of 
approximately $5.5 million in relation to this transaction which are being amortized through the maturity date.  

During the year ended December 31, 2017, we repaid $5.0 million of principal on the 2015 Term Loan. As of December 31, 

2017, the 2015 Term Loan had a principal balance of $487.5 million. 

Secured Tower Revenue Securities  

Tower Revenue Securities Terms  

The mortgage loan underlying the 2012-1C Tower Securities, 2013 Tower Securities, 2014 Tower Securities, 2015-1C Tower 

Securities, 2016-1C Tower Securities, and 2017-1C Tower Securities (together the “Tower Securities”) will be paid from the 
operating cash flows from the aggregate 10,442 tower sites owned by the Borrowers. The sole asset of the Trust consists of a non-
recourse mortgage loan made in favor of those entities that are borrowers on the mortgage loan (the “Borrowers”). The mortgage loan 
is secured by (i) mortgages, deeds of trust, and deeds to secure debt on a substantial portion of the tower sites, (ii) a security interest in 
the tower sites and substantially all of the Borrowers’ personal property and fixtures, (iii) the Borrowers’ rights under certain tenant 
leases, and (iv) all of the proceeds of the foregoing. For each calendar month, SBA Network Management, Inc., an indirect subsidiary 
(“Network Management”), is entitled to receive a management fee equal to 4.5% of the Borrowers’ operating revenues for the 
immediately preceding calendar month.  

The Borrowers may prepay any of the mortgage loan components, in whole or in part, with no prepayment consideration, 
(i) within twelve months (in the case of the component corresponding to the Secured Tower Revenue Securities Series 2012-1C, 
Secured Tower Revenue Securities Series 2013-1C, Secured Tower Revenue Securities Series 2013-1D, Secured Tower Revenue 
Securities Series 2014-1C, Secured Tower Revenue Securities Series 2015-1C, Secured Tower Revenue Securities Series 2016-1C 
and Secured Tower Revenue Securities 2017-1C) or eighteen months (in the case of the components corresponding to the Secured 
Tower Revenue Securities Series 2013-2C and Secured Tower Revenue Securities Series 2014-2C) of the anticipated repayment date 
of such mortgage loan component, (ii) with proceeds received as a result of any condemnation or casualty of any tower owned by the 
Borrowers or (iii) during an amortization period. In all other circumstances, the Borrowers may prepay the mortgage loan, in whole or 
in part, upon payment of the applicable prepayment consideration. The prepayment consideration is determined based on the class of 
the Tower Securities to which the prepaid mortgage loan component corresponds and consists of an amount equal to the excess, if any, 
of (1) the present value associated with the portion of the principal balance being prepaid, calculated in accordance with the formula 
set forth in the mortgage loan agreement, on the date of prepayment of all future installments of principal and interest required to be 
paid from the date of prepayment to and including the first due date within twelve months (in the case of the component corresponding 
to the Secured Tower Revenue Securities Series 2012-1C, Secured Tower Revenue Securities Series 2013-1C, Secured Tower 
Revenue Securities Series 2013-1D, Secured Tower Revenue Securities Series 2014-1C, Secured Tower Revenue Securities Series 
2015-1C, Secured Tower Revenue Securities Series 2016-1C, and Tower Revenue Securities 2017-1C) or eighteen months (in the 
case of the components corresponding to the Secured Tower Revenue Securities Series 2013-2C and Secured Tower Revenue 

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Securities Series 2014-2C) of the anticipated repayment date of such mortgage loan component over (2) that portion of the principal 
balance of such class prepaid on the date of such prepayment.  

To the extent that the mortgage loan components corresponding to the Tower Securities are not fully repaid by their respective 

anticipated repayment dates, the interest rate of each such component will increase by the greater of (i) 5% and (ii) the amount, if any, 
by which the sum of (x) the ten-year U.S. treasury rate plus (y) the credit-based spread for such component (as set forth in the 
mortgage loan agreement) plus (z) 5%, exceeds the original interest rate for such component.  

Pursuant to the terms of the Tower Securities, all rents and other sums due on any of the towers owned by the Borrowers are 

directly deposited by the lessees into a controlled deposit account and are held by the indenture trustee. The monies held by the 
indenture trustee after the release date are classified as short-term restricted cash on the Consolidated Balance Sheets (see Note 4). 
However, if the Debt Service Coverage Ratio, defined as the net cash flow (as defined in the mortgage loan agreement) divided by the 
amount of interest on the mortgage loan, servicing fees and trustee fees that the Borrowers are required to pay over the succeeding 
twelve months, as of the end of any calendar quarter, falls to 1.30x or lower, then all cash flow in excess of amounts required to make 
debt service payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other 
payments required under the loan documents, referred to as “excess cash flow,” will be deposited into a reserve account instead of 
being released to the Borrowers. The funds in the reserve account will not be released to the Borrowers unless the Debt Service 
Coverage Ratio exceeds 1.30x for two consecutive calendar quarters. If the Debt Service Coverage Ratio falls below 1.15x as of the 
end of any calendar quarter, then an “amortization period” will commence and all funds on deposit in the reserve account will be 
applied to prepay the mortgage loan until such time that the Debt Service Coverage Ratio exceeds 1.15x for a calendar quarter. In 
addition, if any of the Tower Securities are not fully repaid by their respective anticipated repayment dates, the cash flow from the 
towers owned by the Borrowers will be trapped by the trustee for the Tower Securities and applied first to repay the interest, at the 
original interest rates, on the mortgage loan components underlying the Tower Securities, second to fund all reserve accounts and 
operating expenses associated with those towers, third to pay the management fees due to Network Management, fourth to repay 
principal of the Tower Securities and fifth to repay the additional interest discussed above. Furthermore, the advance rents reserve 
requirement states that the Borrowers are required to maintain an advance rents reserve at any time the monthly tenant Debt Service 
Coverage Ratio is equal to or less than 2:1 and for two calendar months after such coverage ratio again exceeds 2:1. The mortgage 
loan agreement, as amended, also includes covenants customary for mortgage loans subject to rated securitizations. Among other 
things, the Borrowers are prohibited from incurring other indebtedness for borrowed money or further encumbering their assets.  

As of December 31, 2017, the Borrowers met the debt service coverage ratio required by the mortgage loan agreement and were 

in compliance with all other covenants as set forth in the agreement.  

2012-1C Tower Securities  

On August 9, 2012, we, through the Trust, issued $610.0 million of Secured Tower Revenue Securities Series 2012-1C (the 

“2012-1C Tower Securities”), which had an anticipated repayment date of December 11, 2017 and a final maturity date of December 
9, 2042. The fixed interest rate of the 2012-1C Tower Securities was 2.933% per annum, payable monthly. We incurred deferred 
financing fees of $14.9 million in relation to this transaction which were being amortized through the anticipated repayment date of 
the 2012-1C Tower Securities. 

On April 17, 2017, we repaid in full the 2012-1C Tower Securities with proceeds from the 2017-1C Tower Securities. In 

connection with the repayment, we expensed $2.0 million of net deferred financing fees.  

2013 Tower Securities  

On April 18, 2013, we, through the Trust, issued $425.0 million of 2.240% Secured Tower Revenue Securities Series 2013-1C, 

which have an anticipated repayment date of April 10, 2018 and a final maturity date of April 9, 2043 (the “2013-1C Tower 
Securities”), $575.0 million of 3.722% Secured Tower Revenue Securities Series 2013-2C, which have an anticipated repayment date 
of April 11, 2023 and a final maturity date of April 9, 2048 (the “2013-2C Tower Securities”), and $330.0 million of 3.598% Secured 
Tower Revenue Securities Series 2013-1D, which have an anticipated repayment date of April 10, 2018 and a final maturity date of 
April 9, 2043 (the “2013-1D Tower Securities”) (collectively the “2013 Tower Securities”). The aggregate $1.33 billion of 2013 
Tower Securities have a blended interest rate of 3.218% per annum, payable monthly. We incurred deferred financing fees of $25.5 
million in relation to this transaction, which are being amortized through the anticipated repayment date of each of the 2013 Tower 
Securities. We expect to repay the entire aggregate principal amount of the 2013-1C Tower Securities and 2013-1D Tower Securities 
in connection with the issuance of the 2018-1C Tower Securities (as discussed below). 

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2014 Tower Securities   

On October 15, 2014, we, through the Trust, issued $920.0 million of 2.898% Secured Tower Revenue Securities Series 2014-
1C, which have an anticipated repayment date of October 8, 2019 and a final maturity date of October 11, 2044 (the “2014-1C Tower 
Securities”) and $620.0 million of 3.869% Secured Tower Revenue Securities Series 2014-2C, which have an anticipated repayment 
date of October 8, 2024 and a final maturity date of October 8, 2049 (the “2014-2C Tower Securities”) (collectively the “2014 Tower 
Securities”). The aggregate $1.54 billion of 2014 Tower Securities have a blended interest rate of 3.289% per annum, payable 
monthly. We incurred deferred financing fees of $22.5 million in relation to this transaction, which are being amortized through the 
anticipated repayment date of each of the 2014 Tower Securities.  

2015-1C Tower Securities  

On October 14, 2015, we, through the Trust, issued $500.0 million of Secured Tower Revenue Securities Series 2015-1C, 
which have an anticipated repayment date of October 8, 2020 and a final maturity date of October 10, 2045 (the “2015-1C Tower 
Securities”). The fixed interest rate of the 2015-1C Tower Securities is 3.156% per annum, payable monthly. We incurred deferred 
financing fees of $11.2 million in relation to this transaction, which are being amortized through the anticipated repayment date of the 
2015-1C Tower Securities.  

2016-1C Tower Securities  

On July 7, 2016, we, through the Trust, issued $700.0 million of Secured Tower Revenue Securities Series 2016-1C which have 

an anticipated repayment date of July 9, 2021 and a final maturity date of July 10, 2046 (the “2016-1C Tower Securities”). The fixed 
interest rate of the 2016-1C Tower Securities is 2.877% per annum, payable monthly. Net proceeds from this offering were used to 
prepay the full $550.0 million outstanding on the 2010-2C Tower Securities and for general corporate purposes. We incurred deferred 
financing fees of $9.5 million in relation to this transaction which are being amortized through the anticipated repayment date of the 
2016-1C Tower Securities. 

2017-1C Tower Securities  

On April 17, 2017, we, through the Trust, issued $760.0 million of Secured Tower Revenue Securities Series 2017-1C, which 

have an anticipated repayment date of April 11, 2022 and a final maturity date of April 9, 2047 (the “2017-1C Tower Securities”). The 
fixed interest rate on the 2017-1C Tower Securities is 3.168% per annum, payable monthly. Net proceeds from this offering were used 
to prepay the entire $610.0 million aggregate principal amount, as well as accrued and unpaid interest, of the 2012-1C Tower 
Securities and for general corporate purposes. We incurred deferred financing fees of $10.2 million in relation to this transaction, 
which are being amortized through the anticipated repayment date of the 2017-1C Tower Securities. 

In connection with the issuance of the 2017-1C Tower Securities, the non-recourse mortgage loan was increased by $800.0 

million (or by a net of $190.0 million after giving effect to prepayment of the loan components relating to the 2012-1C Tower 
Securities). The new loan accrues interest at the same rate as the 2017-1C Tower Securities; however, it is subject to all other material 
terms of the existing mortgage loan, including collateral and interest rate after the anticipated repayment date. 

2018-1C Tower Securities  

On February 16, 2018, we agreed to issue, through a Trust, $640.0 million of Secured Tower Revenue Securities Series 2018-

1C (the “2018-1C Tower Securities”), which offering is expected to close March 9, 2018. These securities are expected to have an 
anticipated repayment date of March 9, 2023 and a final maturity date of March 9, 2048. The fixed interest rate on the 2018-1C Tower 
Securities will be 3.448% per annum, payable monthly, and the proceeds of this offering, in combination with borrowings under the 
Revolving Credit Facility, will be used to repay the entire aggregate principal amount of the 2013-1C Tower Securities ($425.0 
million) and 2013-1D Tower Securities ($330.0 million), as well as accrued and unpaid interest. We have classified $755.0 million of 
the combined 2013-1C Tower Securities and 2013-1D Tower Securities as a long-term obligation, as we intend to repay these 
securities with the net proceeds from the offering of the 2018-1C Tower Securities, in combination with borrowings under the 
Revolving Credit Facility.  

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Senior Notes  

2014 Senior Notes 

On July 1, 2014, we issued $750.0 million of unsecured senior notes due July 15, 2022 (the “2014 Senior Notes”). The 2014 
Senior Notes accrue interest at a rate of 4.875% per annum and were issued at 99.178% of par value. Interest on the 2014 Senior Notes 
is due semi-annually on January 15 and July 15 of each year. We incurred deferred financing fees of $11.6 million in relation to this 
transaction which are being amortized through the maturity date.  

The 2014 Senior Notes are subject to redemption in whole or in part on or after July 15, 2017 at the redemption prices set forth 
in the indenture agreement plus accrued and unpaid interest. We may redeem the 2014 Senior Notes during the twelve-month period 
beginning on the following dates at the following redemption prices:  July 15, 2017 at 103.656%, July 15, 2018 at 102.438%, July 15, 
2019 at 101.219%, or July 15, 2020 until maturity at 100.000%, of the principal amount of the 2014 Senior Notes to be redeemed on 
the redemption date plus accrued and unpaid interest. 

2016 Senior Notes 

On August 15, 2016, we issued $1.1 billion of unsecured senior notes due September 1, 2024. The 2016 Senior Notes accrue 

interest at a rate of 4.875% per annum and were issued at 99.178% of par value. Interest on the 2016 Senior Notes is due semi-
annually on March 1 and September 1 of each year, beginning on March 1, 2017. We incurred deferred financing fees of $12.8 million 
in relation to this transaction which are being amortized through the maturity date. Net proceeds from this offering and cash on hand 
were used to redeem $800.0 million, the aggregate principal amount outstanding, of Telecommunications’ 5.75% Senior Notes and 
$250.0 million of our 5.625% Senior Notes and pay the associated call premiums. 

The 2016 Senior Notes are subject to redemption in whole or in part on or after September 1, 2019 at the redemption prices set 

forth in the indenture agreement plus accrued and unpaid interest. Prior to September 1, 2019, we may at our option redeem up to 35% 
of the aggregate principal amount of the 2016 Senior Notes originally issued at a redemption price of 104.875% of the principal 
amount of the 2016 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest with the net proceeds of 
certain equity offerings. We may redeem the 2016 Senior Notes during the twelve-month period beginning on the following dates at 
the following redemption prices:  September 1, 2019 at 103.656%, September 1, 2020 at 102.438%, September 1, 2021 at 101.219%, 
or September 1, 2022 until maturity at 100.000%, of the principal amount of the 2016 Senior Notes to be redeemed on the redemption 
date plus accrued and unpaid interest. 

2017 Senior Notes 

On October 13, 2017, we issued $750.0 million of unsecured senior notes due October 1, 2022 (the “2017 Senior Notes”). The 
2017 Senior Notes accrue interest at a rate of 4.0% per annum. Interest on the 2017 Senior Notes is due semi-annually on April 1 and 
October 1 of each year, beginning on April 1, 2018. We incurred deferred financing fees of $8.2 million in relation to this transaction, 
which are being amortized through the maturity date. Net proceeds from this offering were used to repay $460.0 million outstanding 
under the Revolving Credit Facility and for general corporate purposes. 

The 2017 Senior Notes are subject to redemption in whole or in part on or after October 1, 2019 at the redemption prices set 

forth in the indenture agreement plus accrued and unpaid interest. Until October 1, 2020, we may at our option redeem up to 35% of 
the aggregate principal amount of the 2017 Senior Notes originally issued, at a redemption price of 104.000% of the principal amount 
of the 2017 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest with the net proceeds of certain 
equity offerings. We may redeem the 2017 Senior Notes  during the twelve-month period beginning on the following dates at the 
following redemption prices:  October 1, 2019 at 102.000%,  October 1, 2020 at 101.000%, or October 1, 2021 until maturity at 
100.000%, of the principal amount of the 2017 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest. 

Indentures Governing Senior Notes 

The Indentures governing the Senior Notes contain customary covenants, subject to a number of exceptions and qualifications, 

including restrictions on the ability of SBAC and Telecommunications to (1) incur additional indebtedness unless the Consolidated 
Indebtedness to Annualized Consolidated Adjusted EBITDA Ratio (as defined in the Indenture), pro forma for the additional 
indebtedness does not exceed, with respect to any fiscal quarter, 9.5x for SBAC, (2) merge, consolidate or sell assets, (3) make 
restricted payments, including dividends or other distributions, (4) enter into transactions with affiliates, and (5) enter into sale and 

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leaseback transactions and restrictions on the ability of the Restricted Subsidiaries of SBAC (as defined in the Indentures) to incur 
liens securing indebtedness. 

Debt Service  

As of December 31, 2017, we believe that our cash on hand, capacity available under our Revolving Credit Facility, and cash 
flows from operations for the next twelve months will be sufficient to service our outstanding debt during the next twelve months.  

The following table illustrates our estimate of our debt service requirement over the twelve months ended December 31, 2018 

based on the amounts outstanding as of December 31, 2017 and the interest rates accruing on those amounts on such date (in 
thousands):  

2014 Senior Notes 

2016 Senior Notes 

2017 Senior Notes 

2013-1C Tower Securities (1) 

2013-2C Tower Securities 

2013-1D Tower Securities (2) 

2014-1C Tower Securities 

2014-2C Tower Securities 

2015-1C Tower Securities 

2016-1C Tower Securities 

2017-1C Tower Securities 

Revolving Credit Facility 

2014 Term Loan 

2015 Term Loan 

  $ 

 36,563 

 53,625 

 30,000 

 427,867 

 21,585 

 333,558 

 26,954 

 24,185 

 15,939 

 20,361 

 24,318 

 3,792 

 70,080 

 23,551 

Total debt service for the next 12 months (3) 

  $ 

 1,112,378 

(1)  The anticipated repayment date and the final maturity date for the 2013-1C Tower Securities is April 10, 2018 and April 9, 

2043, respectively. Interest expense included above is through the maturity date. The 2013-1C Tower Securities are expected to 
be repaid in connection with the issuance of the 2018-1C Tower Securities on March 9, 2018. 

(2)  The anticipated repayment date and the final maturity date for the 2013-1D Tower Securities are April 10, 2018 and April 19, 

2043, respectively. Interest expense included above is through the maturity date. The 2013-1D Tower Securities are expected to 
be repaid in connection with the issuance of the 2018-1C Tower Securities. 

(3)   Excludes debt service with respect to the $640.0 million aggregate principal amount of 2018-1C Tower Securities expected to 
be issued on March 9, 2018. The debt service for the 2018-1C Tower Securities in 2018 is expected to be $18.3 million. 

Inflation  

The impact of inflation on our operations has not been significant to date. However, we cannot assure you that a high rate of 
inflation in the future will not adversely affect our operating results particularly in light of the fact that our site leasing revenues are 
governed by long-term contracts with pre-determined pricing that we will not be able to increase in response to increases in inflation 
other than our contracts in South America which have inflationary index based rental escalators.  

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Commitments and Contractual Obligations  

The following table summarizes our scheduled contractual commitments as of December 31, 2017:  

2018 

2019 

2020 

2021 

2022 

Thereafter 

(in thousands) 

Principal payments of debt 

  $ 

 775,000   $ 

 940,000   $ 

 560,000   $ 

 2,107,500   $ 

 2,727,500   $ 

 2,295,000 

Interest payments (1) 

Operating leases 

Capital leases 

Employment agreements 

 337,378    

 324,494    

 295,646    

 232,169    

 157,773    

 139,053 

 220,190    

 222,489    

 224,148    

 226,528    

 228,093    

 3,769,586 

 1,199    

 2,350    

 654    

 800    

 226    

 800    

 31    

 —    

 —    

 —    

 — 

 — 

Total contractual obligations 

  $ 

 1,336,117   $ 

 1,488,437   $ 

 1,080,820   $ 

 2,566,228   $ 

 3,113,366   $ 

 6,203,639 

(1)  Represents interest payments based on the 2013-1C Tower Securities interest rate of 2.240%, the 2013-2C Tower Securities 
interest rate of 3.722%, the 2013-1D Tower Securities interest rate of 3.598%, the 2014-1C Tower Securities interest rate of 
2.898%, the 2014-2C Tower Securities interest rate of 3.869%, the 2015-1C Tower Securities interest rate of 3.156%, the 2016-
1C Tower Securities interest rate of 2.877%, the 2017-1C Tower Securities interest rate of 3.168%, the 2014 Term Loan at an 
interest rate of 3.82% as of December 31, 2017, the 2015 Term Loan at an interest rate of 3.82% as of December 31, 2017, the 
revolver at an average interest rate of 3.48% as of December 31, 2017, the 2015 Senior Notes interest rates of 4.875%, 2016 
Senior Notes interest rates of 4.875%, and the 2017 Senior Notes interest rate of 4.000%. The 2013-1C Tower Securities and 
2013-1D Tower Securities are expected to be repaid in connection with the expected issuance on March 9, 2018 of the $640.0 
million of 2018-1C Tower Securities with a fixed interest rate of 3.448% per annum. 

Off-Balance Sheet Arrangements  

We are not involved in any off-balance sheet arrangements.  

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK  

We are exposed to certain market risks that are inherent in our financial instruments. These instruments arise from transactions 

entered into in the normal course of business.  

The following table presents the future principal payment obligations and fair values associated with our long-term debt 

instruments assuming our actual level of long-term indebtedness as of December 31, 2017:  

2018 

2019 

2020 

2021 

2022 

  Thereafter 

Total 

  Fair Value 

(in thousands) 

2014 Senior Notes 

  $ 

 —  $ 

 —  $ 

 —  $ 

 —  $ 

 750,000   $ 

 —  $ 

 750,000   $ 

 770,625 

2016 Senior Notes 

2017 Senior Notes 

 —   

 —   

2013-1C Tower Securities (1)(2) 

 425,000    

2013-2C Tower Securities (1) 

 —   

2013-1D Tower Securities (1)(2) 

 330,000    

 —   

 —   

 —   

 —   

 —   

2014-1C Tower Securities (1) 

 —   

 920,000    

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 1,100,000    

 1,100,000    

 1,127,500 

 —   

 750,000    

 —   

 —   

 750,000    

 750,938 

 425,000    

 423,853 

 575,000    

 575,000    

 578,433 

 —   

 —   

 330,000    

 330,145 

 920,000    

 915,216 

 620,000    

 620,000    

 620,942 

 —   

 —   

 —   

 —   

 500,000    

 496,840 

 700,000    

 691,166 

 760,000    

 751,404 

 40,000    

 40,000 

 —   

 1,447,500    

 1,451,119 

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 —   

 500,000    

 —   

 —   

 —   

 —   

 700,000    

 —   

 —   

 760,000    

 —   

 —   

 —   

 —   

 —   

 —   

 40,000    

 —   

 15,000    

 15,000    

 15,000    

 1,402,500    

2014-2C Tower Securities (1) 

2015-1C Tower Securities (1) 

2016-1C Tower Securities (1) 

2017-1C Tower Securities (1) 

Revolving Credit Facility 

2014 Term Loan 

2015 Term Loan 

 5,000    

 5,000    

 5,000    

 5,000    

 467,500    

 —   

 487,500    

 488,109 

Total debt obligation 

  $ 

 775,000   $ 

 940,000   $ 

 560,000   $ 

 2,107,500   $   2,727,500   $ 

 2,295,000   $ 

 9,405,000   $ 

 9,436,290 

(1)  The anticipated repayment date and the final maturity date for the 2013-1C Tower Securities is April 10, 2018 and April 9, 

2043, respectively. 
The anticipated repayment date and the final maturity date for the 2013-2C Tower Securities is April 11, 2023 and April 9, 
2048, respectively. 
The anticipated repayment date and the final maturity date for the 2013-1D Tower Securities is April 10, 2018 and April 9, 
2043, respectively.  
The anticipated repayment date and the final maturity date for the 2014-1C Tower Securities is October 8, 2019 and October 11, 
2044, respectively.  
The anticipated repayment date and the final maturity date for the 2014-2C Tower Securities is October 8, 2024 and October 8, 
2049, respectively. 
The anticipated repayment date and the final maturity date for the 2015-1C Tower Securities is October 8, 2020 and October 10, 
2045, respectively. 
The anticipated repayment date and the final maturity date for the 2016-1C Tower Securities is July 9, 2021 and July 10, 2046, 
respectively. 
The anticipated repayment date and the final maturity date for the 2017-1C Tower Securities is April 11, 2022 and April 9, 
2047, respectively.  

(2)  Proceeds from the issuance of the 2018-1C Tower Securities, which, once issued, will be due March 9, 2023, are expected to be 

used to repay the full $425.0 million outstanding under the 2013-1C Tower Securities and the full $330.0 million outstanding 
under the 2013-1D Tower Securities. 

Our current primary market risk exposure is (1) interest rate risk relating to our ability to refinance our debt at commercially 

reasonable rates, if at all, and (2) interest rate risk relating to the impact of interest rate movements on our 2014 Term Loan and 2015 
Term Loan and any borrowings that we may incur under our Revolving Credit Facility, which are at floating rates. We manage the 
interest rate risk on our outstanding debt through our large percentage of fixed rate debt. While we cannot predict our ability to 

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refinance existing debt or the impact interest rate movements will have on our existing debt, we continue to evaluate our financial 
position on an ongoing basis.  

We are exposed to market risk from changes in foreign currency exchange rates in connection with our operations in Brazil, 

Canada, Chile, Peru, Argentina, Colombia, and to a lesser extent, our markets in Central America. In each of these countries, we pay 
most of our selling, general, and administrative expenses and a portion of our operating expenses, such as taxes and utilities incurred 
in the country in local currency. In addition, in Brazil, Canada, Chile, and Colombia, we receive significantly all of our revenue and 
pay significantly all of our operating expenses in local currency. In Peru and Argentina, we receive our revenue and pay our operating 
expenses in a mix of local currency and U.S. dollars. All transactions denominated in currencies other than the U.S. Dollar are 
reported in U.S. Dollars at the applicable exchange rate. All assets and liabilities are translated into U.S. Dollars at exchange rates in 
effect at the end of the applicable fiscal reporting period, and all revenues and expenses are translated at average rates for the period. 
The cumulative translation effect is included in equity as a component of Accumulated other comprehensive income (loss). For the 
year ended December 31, 2017, approximately 13.5% of our revenues and approximately 16.3% of our total operating expenses were 
denominated in foreign currencies. 

We have performed a sensitivity analysis assuming a hypothetical 10% adverse movement in the Brazilian Real from the quoted 

foreign currency exchange rates at December 31, 2017. As of December 31, 2017, the analysis indicated that such an adverse 
movement would have caused our revenues and operating income to decline by approximately 1.1% and 2.8%, respectively, for the 
year ended December 31, 2017. 

As of December 31, 2017, we had intercompany debt, which is denominated in a currency other than the functional currency of 
the subsidiary in which it is recorded. As settlement of this debt is anticipated or planned in the foreseeable future, any changes in the 
foreign currency exchange rates will result in unrealized gains or losses, which will be included in our determination of net income. A 
change of 10% in the underlying exchange rates of our unsettled intercompany debt at December 31, 2017 would have resulted in 
approximately $56.4 million of unrealized gains or losses that would have been included in Other income (expense), net in our 
Consolidated Statements of Operations for the year ended December 31, 2017. 

Special Note Regarding Forward-Looking Statements  

This annual report contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as 

amended, and Section 21E of the Exchange Act. These statements concern expectations, beliefs, projections, plans and strategies, 
anticipated events or trends and similar expressions concerning matters that are not historical facts. Specifically, this annual report 
contains forward-looking statements regarding:  

• 

• 

• 

• 

• 

• 

• 

• 

our expectations on the future growth and financial health of the wireless industry and the industry participants, the 
drivers of such growth, the demand for our towers, the trends developing in our industry, and competitive factors;  

our ability to capture and capitalize on industry growth and the impact of such growth on our financial and operational 
results; 

our intent to grow our tower portfolio domestically and internationally and expend through organic lease up on existing 
towers;  

our ability to grow our tower portfolio without proportionately increasing selling, general, and administrative expenses;  

our belief that over the long-term, site leasing revenues will continue to grow as wireless service providers increase their 
use of our towers due to increasing minutes of network use and data transfer, network expansion and network coverage 
requirements; 

our expectation regarding site leasing revenue growth, on an organic basis, in our domestic and international segments;  

our belief that our site leasing business is characterized by stable and long-term recurring revenues, predictable operating 
costs, and minimal non-discretionary capital expenditures;  

our expectation that, due to the relatively young age and mix of our tower portfolio, future expenditures required to 
maintain these towers will be minimal;  

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• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

our expectation that we will grow our cash flows by adding tenants to our towers at minimal incremental costs and 
executing monetary amendments; 

our belief regarding the impact of our ground lease purchase program; 

our ability to remain qualified as a REIT and the timing of such qualification and our election to be subject to tax as a 
REIT; 

our belief that our business is currently operated in a manner that complies with the REIT rules and our intent to continue 
to do so; 

our plans regarding our distribution policy, and the amount and timing of, and source of funds for, any such distributions; 

our expectations regarding the use of NOLs to reduce REIT taxable income; 

our expectations regarding our capital allocation strategy, the impact of our election to be taxed as a REIT on that strategy, 
and our goal of increasing our Adjusted Funds From Operations per share; 

and our goal of increasing our Adjusted Funds From Operations per share;  

our expectations regarding our future cash capital expenditures, both discretionary and non-discretionary, including 
expenditures required to maintain, improve, and modify our towers, ground lease purchases, and general corporate 
expenditures, and the source of funds for these expenditures;  

our intended use of our liquidity; 

our expectations regarding our debt service in 2018 and our belief that our cash on hand, capacity under our Revolving 
Credit Facility, and our cash flows from operations for the next twelve months will be sufficient to service our outstanding 
debt during the next twelve months;  

the timing of closing of pending financings and the expected use of proceeds;  

our belief regarding our credit risk;   

our estimates with respect to tax matters as a result of the Tax Act and our expectation that one-time income charges 
recognized as a result of the Tax Act will be offset by our existing NOLs; and  

our estimates regarding certain tax and accounting matters, including the impact on our financial statements. 

These forward-looking statements reflect our current views about future events and are subject to risks, uncertainties and 

assumptions. We wish to caution readers that certain important factors may have affected and could in the future affect our actual 
results and could cause actual results to differ significantly from those expressed in any forward-looking statement. The most 
important factors that could prevent us from achieving our goals, and cause the assumptions underlying forward-looking statements 
and the actual results to differ materially from those expressed in or implied by those forward-looking statements include, but are not 
limited to, the following:  

• 

• 

• 

the impact of consolidation among wireless service providers on our leasing revenue;  

our ability to continue to comply with covenants and the terms of our credit instruments and our ability to obtain 
additional financing to fund our capital expenditures;  

our ability to successfully manage the risks associated with international operations, including risks relating to political or 
economic conditions, tax laws, currency restrictions and exchange rate fluctuations, legal or judicial systems, and land 
ownership;  

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• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

our ability to successfully manage the risks associated with our acquisition initiatives, including our ability to effectively 
integrate acquired towers into our business and to achieve the financial results projected in our valuation models for the 
acquired towers;  

developments in the wireless communications industry in general, and for wireless communications infrastructure 
providers in particular, that may slow growth or affect the willingness or ability of the wireless service providers to 
expend capital to fund network expansion or enhancements;  

our ability to secure as many site leasing tenants as anticipated, recognize our expected economies of scale with respect to 
new tenants on our towers, and retain current leases on towers;   

our ability to secure and deliver anticipated services business at contemplated margins;  

our ability to build new towers, including our ability to identify and acquire land that would be attractive for our 
customers and to successfully and timely address zoning, permitting, weather, availability of labor and supplies and other 
issues that arise in connection with the building of new towers;  

competition for the acquisition of towers and other factors that may adversely affect our ability to purchase towers that 
meet our investment criteria and are available at prices which we believe will be accretive to our shareholders and allow 
us to maintain our long-term target leverage ratios while achieving our expected portfolio growth levels; 

our capital allocation decisions and the impact on our ability to achieve our expected tower portfolio growth levels; 

our ability to protect our rights to the land under our towers, and our ability to acquire land underneath our towers on 
terms that are accretive;  

our ability to sufficiently increase our revenues and maintain expenses and cash capital expenditures at appropriate levels 
to permit us to meet our anticipated uses of liquidity for operations, debt service and estimated portfolio growth;  

the impact of rising interest rates and our ability to refinance our existing indebtedness at commercially reasonable rates or 
at all;  

our ability to successfully estimate the impact of regulatory and litigation matters;  

natural disasters and other unforeseen damage for which our insurance may not provide adequate coverage;  

a decrease in demand for our towers;  

the introduction of new technologies or changes in a tenant’s business model that may make our tower leasing business 
less desirable to existing or potential tenants; 

our ability to qualify for treatment as a REIT for U.S. federal income tax purposes and to comply with and conduct our 
business in accordance with such rules;   

our ability to utilize available NOLs to reduce REIT taxable income;  

the complexity of the Tax Act and our ability to accurately interpret and predict its impact on our financial condition and 
results; and 

our ability to successfully estimate the impact of certain accounting and tax matters, including the effect on our company 
of adopting certain accounting pronouncements and the availability of sufficient NOLs to offset future REIT taxable 
income. 

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA  

Financial statements and supplementary data are on pages F-1 through F-40. 

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ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL 
DISCLOSURE  

None.  

ITEM 9A. CONTROLS AND PROCEDURES  

Disclosure Controls and Procedures – We maintain disclosure controls and procedures that are designed to ensure that 
information required to be disclosed in our reports under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is 
recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such 
information is accumulated and communicated to management, including our Chief Executive Officer (“CEO”) and Chief Financial 
Officer (“CFO”), as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure 
controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can 
provide only reasonable assurance of achieving the desired control objectives, as ours are designed to do, and management necessarily 
was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.  

In connection with the preparation of this Annual Report on Form 10-K, as of December 31, 2017, an evaluation was performed 

under the supervision and with the participation of our management, including the CEO and CFO, of the effectiveness of our 
disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act). Based on such evaluation, our CEO and 
CFO concluded that, as of December 31, 2017, our disclosure controls and procedures were effective.  

There has been no change in our internal control over financial reporting during the quarter ended December 31, 2017 that has 

materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.  

Management’s Annual Report on Internal Control over Financial Reporting – Management is responsible for establishing 

and maintaining adequate internal control over financial reporting, and for performing an assessment of the effectiveness of internal 
control over financial reporting as of December 31, 2017. Internal control over financial reporting is a process designed to provide 
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in 
accordance with generally accepted accounting principles. Our system of internal control over financial reporting includes those 
policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the 
transactions and dispositions of the assets of SBAC; (ii) provide reasonable assurance that transactions are recorded as necessary to 
permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and 
expenditures of SBAC are being made only in accordance with authorizations of management and directors of SBAC; and 
(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of SBAC’s 
assets that could have a material effect on the financial statements.  

Management performed an assessment of the effectiveness of SBAC’s internal control over financial reporting as of December 
31, 2017 based upon criteria in Internal Control – Integrated Framework (2013 Framework) issued by the Committee of Sponsoring 
Organizations of the Treadway Commission (COSO). Based on our assessment, management determined that SBAC’s internal control 
over financial reporting was effective as of December 31, 2017 based on the criteria in Internal Control – Integrated Framework 
(2013 Framework) issued by COSO.  

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of 
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

Ernst & Young LLP, the independent registered public accounting firm that audited the financial statements included in this 

Annual Report on Form 10-K, has issued an attestation report on SBAC’s internal control over financial reporting.  

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Report of Independent Registered Certified Public Accounting Firm 

To the Shareholders and the Board of Directors of SBA Communications Corporation and Subsidiaries   

Opinion on Internal Control over Financial Reporting  

We have audited SBA Communications Corporation and Subsidiaries’ internal control over financial reporting as of December 31, 2017, 
based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the 
Treadway Commission (2013 framework) (the COSO criteria). In our opinion, SBA Communications Corporation and Subsidiaries’ 
(the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based 
on the COSO criteria.  

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States),  the 
consolidated balance sheets of the Company as of  December 31, 2017 and 2016 and the related consolidated statements of operations, 
comprehensive income (loss), shareholders’ deficit, and cash flows for each of the three years in the period ended December 31, 2017, 
and the related notes and financial statement schedule listed in the Index at Item 15(a) of the Company and our report dated March 1, 
2018 expressed an unqualified opinion thereon.  

Basis for Opinion  

The Company’s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of 
the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal 
Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting 
based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the 
Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange 
Commission and the PCAOB.  

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.  

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such 
other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. 

Definition and Limitations of Internal Control Over Financial Reporting 

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles.  A  company’s  internal  control  over  financial  reporting  includes  those  policies  and  procedures  that  (1)  pertain  to  the 
maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and  dispositions  of  the  assets  of  the 
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in 
accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in 
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention 
or timely detection of unauthorized acquisition,  use, or disposition of the company’s assets that could have a  material effect on the 
financial statements. 

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections 
of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in 
conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

/s/ Ernst & Young LLP  

Boca Raton, Florida  
March 1, 2018  

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PART III  

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERANCE  

We have adopted a Code of Ethics that applies to our Chief Executive Officer, Chief Financial Officer and Chief Accounting 

Officer. The Code of Ethics is located on our internet web site at www.sbasite.com under “Investor Relations – Corporate Governance 
– Governance Documents.” We intend to provide disclosure of any amendments or waivers of our Code of Ethics on our website 
within four business days following the date of the amendment or waiver.  

The remaining items required by Part III, Item 10 are incorporated herein by reference from the Registrant’s Proxy Statement 

for its 2018 Annual Meeting of Shareholders to be filed on or before April 29, 2018.  

ITEM 11. EXECUTIVE COMPENSATION  

The items required by Part III, Item 11 are incorporated herein by reference from the Registrant’s Proxy Statement for its 2018 

Annual Meeting of Shareholders to be filed on or before April 29, 2018.  

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED 
STOCKHOLDER MATTERS  

The items required by Part III, Item 12 are incorporated herein by reference from the Registrant’s Proxy Statement for its 2018 

Annual Meeting of Shareholders to be filed on or before April 29, 2018.  

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE  

The items required by Part III, Item 13 are incorporated herein by reference from the Registrant’s Proxy Statement for its 2018 

Annual Meeting of Shareholders to be filed on or before April 29, 2018.  

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES  

The items required by Part III, Item 14 are incorporated herein by reference from the Registrant’s Proxy Statement for its 2018 

Annual Meeting of Shareholders to be filed on or before April 29, 2018.  

PART IV  

ITEM 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES  

(a) Documents filed as part of this report:  

(1) Financial Statements  

See Item 8 for Financial Statements included with this Annual Report on Form 10-K.  

(2)  Financial Statement Schedules  

Schedule III—Schedule of Real Estate and Accumulated Depreciation (see below) 

All other schedules are omitted because they are not applicable or because the required information is contained in the financial 
statements or notes thereto included in this Form 10-K.  

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Schedule III—Schedule of Real Estate and Accumulated Depreciation 

Cost  

    Accumulated    

    Capitalized      Gross Amount      Depreciation    

Initial 

    Subsequent      Carried at Close     

at Close 

    Life on Which 

    Depreciation  

in Latest 

Income 

Description      Encumbrances   

Company 

    Acquisition     

Period 

Period 

    Construction     Acquired 

    Computed 

Cost to 

to 

of Current 

of Current     

Date of  

Date 

    Statement is  

27,909 sites (1)   $ 

 6,805,000 

(2)  

(3) 

(3) 

  $ 

 5,340,858  

(4)    $ 

 (2,627,841)    

Various 

Various 

    Up to 20 years 

(in thousands) 

(1)  No single site exceeds 5% of the aggregate gross amounts at which the assets were carried at the close of the period set 

forth in the table above.  

(2)  As of December 31, 2017, certain assets secure debt of $6.8 billion.  
(3)  The Company has omitted this information, as it would be impracticable to compile such information on a site-by-site 

basis. 

(4)  Does not include those sites under construction.  

Gross amount at beginning 

Additions during period:  

     Acquisitions (1) 

     Construction and related costs on new builds 

     Augmentation and tower upgrades 

     Land buyouts and other assets 

     Tower maintenance 

     Other (2) 

Total additions 

Deductions during period:  

     Cost of real estate sold or disposed 

     Impairment 

     Other (2) 

Total deductions:  

Balance at end 

2017 

2016 

2015 

(in thousands) 

  $  5,079,660   $  4,839,874   $  4,577,296 

 112,979    

 72,456    

 203,441 

 70,361    

 58,143    

 43,288    

 37,861    

 41,657    

 44,574    

 29,391    

 28,257    

 87,088 

 52,146 

 47,148 

 27,123 

 —    

 45,829    

 — 

 297,676    

 287,120    

 416,946 

 (1,027)    

 (12,842)    

 (26,506) 

 (34,102)    

 (34,491)    

 (34,373) 

 (1,350)    

 —    

 (93,489) 

 (36,479)    

 (47,334)    

 (154,368) 

  $  5,340,858   $  5,079,660   $  4,839,874 

(1)  Inclusive of changes between the final purchase price allocation and the preliminary purchase price allocations.  

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Gross amount of accumulated depreciation at beginning 

  $ (2,396,587)   $ (2,160,530)   $ (1,912,906) 

2017 

2016 

2015 

(in thousands) 

Additions during period:  

     Depreciation 

     Other (2) 

Total additions 

Deductions during period: 

 (248,818)    

 (254,982)    

 (282,831) 

 —    

 (5,557)    

 — 

 (248,818)    

 (260,539)    

 (282,831) 

     Amount of accumulated depreciation for assets sold or disposed 

 17,051    

 24,483    

 25,909 

     Other (2) 

Total deductions 

Balance at end 

 513    

 —    

 9,298 

 17,564    

 24,483    

 35,207 

  $ (2,627,841)   $ (2,396,587)   $ (2,160,530) 

(2)  Primarily represents cumulative translation adjustments related to changes in foreign currency exchange rates. 

(3)  Exhibits 

Exhibit 
Nb. 
2.1 

Exhibit Description 

  Agreement and Plan of Merger, by and between SBA Communications 

Corporation and SBA Communications REIT Corporation, dated November 10, 
2016. 

3.1 

  Amended and Restated Articles of Incorporation of SBA Communications 

Corporation, effective as of January 13, 2017. 

3.2 

  Articles of Merger, effective as of January 13, 2017. 

3.3 

  Second Amended and Restated Bylaws of SBA Communications Corporation, 

effective as of January 14, 2017.  

4.15A    Form of Senior Indenture.  

4.16A    Form of Subordinated Indenture.  

Incorporated by Reference 

Form 
8-K 

  Period Covered or 
Date of Filing 
01/17/17 

8-K 

8-K 

8-K 

S-3ASR 
(333-202477) 

S-3ASR 
(333-202477) 

01/17/17 

01/17/17 

01/18/17 

03/03/15 

03/03/15 

4.24 

  Indenture, dated July 1, 2014, between SBA Communications Corporation and 

8-K 

07/01/14 

U.S. Bank National Association.  

4.24A    Supplemental Indenture, dated as of January 13, 2017, between SBA 

8-K 

01/17/17 

Communications Corporation and U.S. Bank National Association, to the 
Indenture dated as of July 1, 2014, between SBA Communications Corporation 
and U.S. Bank National Association.  

4.25 

  Form of 4.875% Senior Notes due 2022 (included in Exhibit 4.24). 

4.26 

   Indenture, dated August 15, 2016, between SBA Communications Corporation 

and U.S. Bank National Association. 

8-K 

8-K 

07/01/14 

08/16/16 

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4.26A    Supplemental Indenture, dated as of January 13, 2017, between SBA 

8-K 

01/17/17 

Communications Corporation and U.S. Bank National Association, to the 
Indenture dated as of August 15, 2016, between SBA Communications 
Corporation and U.S. Bank National Association.  

4.27 

  Form of 4.875% Senior Notes due 2024 (included in Exhibit 4.26). 

4.28 

  Indenture, dated as of October 13, 2017, between SBA Communications 

Corporation and U.S. Bank National Association 

4.29 

  Form of 4.00% Senior Notes due 2022 (included in Exhibit 4.28). 

8-K 

8-K 

8-K 

10.1 

  SBA Communications Corporation Registration Rights Agreement dated as of 
March 5, 1997, among the Company, Steven E. Bernstein, Ronald G. Bizick, II 
and Robert Grobstein.  

S-4 
(333-50219) 

08/16/16 

10/16/17 

10/16/17 

04/15/98 

10.3 

  2015 Revolving Refinancing Amendment, dated as of February 5, 2015, among 

10-K 

SBA Senior Finance II, as borrower, the several lenders from time to time parties 
thereto, and Toronto Dominion (Texas) LLC, as administrative agent.  

  Year ended December 
31, 2014 

10.4 

10.5 

  Purchase Agreement, dated April 4, 2013, among SBA Senior Finance, LLC, 
Deutsche Bank Trust Company Americas, as trustee, and the several initial 
purchasers listed on Schedule I thereto. 

8-K 

04/23/13 

  Incremental Term Loan B-2 Amendment, dated as of June 10, 2015, among SBA 
Senior Finance II LLC, as borrower, the several lenders from time to time parties 
thereto, and Toronto Dominion (Texas) LLC, as administrative agent.  

10-Q 

  Quarter ended June 

30, 2015 

10.6 

  Purchase Agreement, dated October 6, 2015, among SBA Senior Finance, LLC, 

8-K 

10/09/15 

Deutsche Bank Trust Company Americas, as trustee, and the several initial 
purchasers listed on Schedule I thereto. 

10.7 

  Second Amended and Restated Credit Agreement, dated as of February 7, 2014, 
among SBA Senior Finance II LLC, as borrower, the several lenders from time 
to time parties thereto, Citigroup Global Capital Markets Inc. and Barclays Bank 
PLC, as incremental tranche B-1 term loan joint lead arrangers and syndication 
agents, Deutsche Bank Securities Inc., J.P. Morgan Securities LLC, TD 
Securities (USA) LLC, The Royal Bank of Scotland plc and Wells Fargo 
Securities, LLC, as co-incremental Tranche B-1 term loan documentation agents, 
and Toronto Dominion (Texas) LLC, as administrative agent.  

8-K 

02/13/14 

10.7A    Seventh Amendment, dated as of January 20, 2017, among SBA Senior Finance 
II LLC, as borrower, the lenders parties thereto, and Toronto Dominion (Texas) 
LLC, as administrative agent.  

10-K 

  Year ended December 
31, 2016 

10.8 

  Second Amended and Restated Guarantee and Collateral Agreement, dated as of 

8-K 

02/13/14 

February 7, 2014, among SBA Communications Corporation, SBA 
Telecommunications, LLC, SBA Senior Finance, LLC, SBA Senior Finance II 
LLC and certain of its subsidiaries, as identified in the Second Amended and 
Restated Guarantee and Collateral Agreement, in favor of Toronto Dominion 
(Texas) LLC, as administrative agent.  

62 

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10.11 

  Purchase Agreement, dated October 7, 2014, among SBA Senior Finance, LLC, 

8-K 

10/10/14 

Deutsche Bank Trust Company, as trustee, and several initial purchasers listed on 
Schedule I thereto. 

10.12 

  Second Amended and Restated Loan and Security Agreement, dated as of 
October 15, 2014, among SBA Properties, LLC, SBA Sites, LLC, SBA 
Structures, LLC, SBA Infrastructure, LLC, SBA Monarch Towers III, LLC, SBA 
2012 TC Assets PR, LLC, SBA 2012 TC Assets, LLC, SBA Towers IV, LLC, 
SBA Monarch Towers I, LLC, SBA Towers USVI, Inc., SBA GC Towers, LLC, 
SBA Towers VII, LLC and any Additional Borrower or Borrowers that may 
become a party thereto and Midland Loan Services, as Servicer on behalf of 
Deutsche Bank Trust Company Americas, as Trustee.  

10-Q 

Quarter ended 
September 30, 2014 

10.12A    First Loan and Security Agreement Supplement and Amendment, dated as of 

8-K 

10/20/15 

October 14, 2015, by and among the Borrowers named therein and Midland Loan 
Services, a division of PNC Bank, National Association, as Servicer on behalf of 
Deutsche Bank Trust Company Americas, as Trustee.  

10.12B    Second Loan and Security Agreement Supplement, dated as of July 7, 2016, by 
and among the Borrowers named therein and Midland Loan Services, a division 
of PNC Bank, National Association, as Servicer on behalf of Deutsche Bank 
Trust Company Americas, as Trustee.  

10.12C    Third Loan and Security Agreement Supplement and Amendment, dated as of 
April 7, 2017, by and among the Borrowers named therein and Midland Loan 
Services, a division of PNC Bank, National Association, as Servicer on behalf of 
Deutsche Bank Trust Company Americas, as Trustee.  

8-K 

07/08/16 

8-K 

04/21/17 

10.13 

  Purchase Agreement, dated June 21, 2016, among SBA Senior Finance, LLC, 
Deutsche Bank Trust Company Americas, as trustee, and the several initial 
purchasers listed on Schedule I thereto. 

8-K 

06/24/16 

10.14 

  Purchase Agreement, dated August 1, 2016, between SBA Communications 

8-K 

08/02/16 

Corporation and Deutsche Bank Securities Inc. and J.P. Morgan Securities LLC, 
as representatives of the several initial purchasers listed on Schedule 1 thereto. 

10.15 

  Registration Rights Agreement, dated August 15, 2016, among SBA 

8-K 

08/16/16 

Communications Corporation and the several initial purchasers listed on 
Schedule I thereto (incorporated by reference to Exhibit 10.16 to the Form 8-K 
filed on August 16, 2016). 

10.16 

  Purchase Agreement, dated April 4, 2017, among SBA Senior Finance, LLC, 
Deutsche Bank Trust Company Americas, as trustee, and the several initial 
purchasers listed on Schedule I thereto.  

8-K 

04/07/17 

10.17 

  Registration Rights Agreement, dated October 13, 2017, between SBA 

8-K 

10/16/17 

Communications Corporation and Citigroup Global Markets Inc. and J.P. 
Morgan Securities LLC, as representatives of the several initial purchasers listed 
on Schedule I thereto.  

10.18 

  Purchase Agreement, dated September 28, 2017, between SBA Communications 
Corporation and Citigroup Global Markets, Inc. and J.P. Morgan Securities LLC, 
as representatives of the several initial purchasers listed on Schedule I thereto.  

8-K 

Quarter ended 
September 30, 2017 

63 

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10.19 

  Purchase Agreement, dated February 16, 2018, among SBA Senior Finance, 

8-K 

02/22/18 

LLC, Deutsche Bank Trust Company Americas, as trustee, and the several initial 
purchasers listed on Schedule I thereto.  

10.33 

  2001 Equity Participation Plan as Amended and Restated on May 16, 2002.† 

  DEF 14A 

04/16/02 

10.35G    Employment Agreement, dated August 15, 2017, between SBA Communications 

10-Q 

Corporation and Jeffrey A. Stoops.† 

Quarter ended 
September 30, 2017 

10.35H    Amendment to Employment Agreement, effective as of August 15, 2017, 

between SBA Communications Corporation and Jeffrey A. Stoops.†* 

10.50 

  Management Agreement, dated as of November 18, 2005, by and among SBA 
Properties, Inc., SBA Network Management, Inc. and SBA Senior Finance, Inc.  

10-K 

  Year ended December 
31, 2005 

10.57D    Amended and Restated Employment Agreement, dated as of December 7, 2015, 

10-K 

between SBA Communications Corporation and Kurt L. Bagwell.†  

  Year ended December 
31, 2015 

10.57E    Amendment to Amended and Restated Employment Agreement, effective as of 

December 7, 2015, between SBA Communications Corporation and Kurt L. 
Bagwell.†* 

10.58D    Amended and Restated Employment Agreement, dated as of December 7, 2015, 

10-K 

between SBA Communications Corporation and Thomas P. Hunt.† 

  Year ended December 
31, 2015 

10.58E    Amendment to Amended and Restated Employment Agreement, effective as of 
December 7, 2015, between SBA Communications Corporation and Thomas P. 
Hunt.†* 

10.60 

  Joinder and Amendment to Management Agreement, dated November 6, 2006, 
by and among SBA Properties, Inc., SBA Towers, Inc., SBA Puerto Rico, Inc., 
SBA Sites, Inc., SBA Towers USVI, Inc., and SBA Structures, Inc., and SBA 
Network Management, Inc., and SBA Senior Finance, Inc.  

10-K 

  Year ended December 
31, 2006 

10.75A    SBA Communications Corporation 2008 Employee Stock Purchase Plan, as 

10-Q 

  Quarter ended June 

amended on May 4, 2011.† 

10.76 

  Form of Indemnification Agreement dated January 15, 2009 between SBA 

10-K 

Communications Corporation and its directors and certain officers.  

30, 2011 

  Year ended December 
31, 2008 

10.85C    Amended and Restated Employment Agreement, dated as of December 7, 2015, 
between SBA Communications Corporation and Brendan T. Cavanagh.†  

10-K 

  Year ended December 
31, 2015 

10.85D    Amendment to Amended and Restated Employment Agreement, effective as of 
December 7, 2015, between SBA Communications Corporation and Brendan T. 
Cavanagh.†* 

10.89A    SBA Communications Corporation 2010 Performance and Equity Incentive Plan, 

10-Q 

  Quarter ended June 

as amended and restated.†  

21 

  Subsidiaries.*  

23.1 

  Consent of Ernst & Young LLP.* 

30, 2017 

64 

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31.1 

  Certification by Jeffrey A. Stoops, Chief Executive Officer, pursuant to Section 

302 of the Sarbanes-Oxley Act of 2002.* 

31.2 

  Certification by Brendan T. Cavanagh, Chief Financial Officer, pursuant to 

Section 302 of the Sarbanes-Oxley Act of 2002.*  

32.1 

  Certification by Jeffrey A. Stoops, Chief Executive Officer, pursuant to Section 

906 of the Sarbanes-Oxley Act of 2002. ** 

32.2 

  Certification by Brendan T. Cavanagh, Chief Financial Officer, pursuant to 

Section 906 of the Sarbanes-Oxley Act of 2002. **  

101.INS   XBRL Instance Document.* 

101.SCH   XBRL Taxonomy Extension Schema Document.* 

101.DEF   XBRL Taxonomy Extension Definition Linkbase Document.* 

101.CAL   XBRL Taxonomy Extension Calculation Linkbase Document.* 

101.LAB   XBRL Taxonomy Extension Label Linkbase Document.* 

101.PRE   XBRL Taxonomy Extension Presentation Linkbase Document.* 

______________ 
† Management contract or compensatory plan or arrangement. 
* Filed herewith. 
** Furnished herewith. 

ITEM 16. FORM 10-K SUMMARY 

None.

65 

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Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this 

report to be signed on its behalf by the undersigned, thereunto duly authorized.  

SIGNATURES 

SBA COMMUNICATIONS CORPORATION 

By: 

/s/ Jeffrey A. Stoops 

Jeffrey A. Stoops  

Chief Executive Officer and President 

Date:  March 1, 2018 

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons 

on behalf of the registrant and in the capacities and on the dates indicated.  

Signature 

Title 

Date 

/s/ Steven E. Bernstein 
Steven E. Bernstein 

/s/ Jeffrey A. Stoops 
Jeffrey A. Stoops 

/s/ Brendan T. Cavanagh 
Brendan T. Cavanagh 

/s/ Brian D. Lazarus 
Brian D. Lazarus 

/s/ Brian C. Carr 
Brian C. Carr 

/s/ Mary S. Chan 
Mary S. Chan 

/s/ Duncan H. Cocroft 
Duncan H. Cocroft 

/s/ George R. Krouse Jr. 
George R. Krouse Jr. 

/s/ Jack Langer 
Jack Langer 

/s/ Kevin L. Beebe 
Kevin L. Beebe 

Chairman of the Board of Directors 

March 1, 2018 

Chief Executive Officer and President 
(Principal Executive Officer) 

March 1, 2018 

Chief Financial Officer and Executive Vice President 
(Principal Financial Officer) 

March 1, 2018 

Chief Accounting Officer and Senior Vice President 
(Principal Accounting Officer) 

March 1, 2018 

March 1, 2018 

March 1, 2018 

March 1, 2018 

March 1, 2018 

March 1, 2018 

March 1, 2018 

Director 

Director 

Director 

Director 

Director 

Director 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 

CONSOLIDATED FINANCIAL STATEMENTS  

Table of Contents  

Report of Independent Registered Public Accounting Firm 

Consolidated Balance Sheets as of December 31, 2017 and 2016 

Consolidated Statements of Operations for the years ended December 31, 2017, 2016 and 2015 

Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2017, 2016 and 2015   

Consolidated Statements of Shareholders’ Deficit for the years ended December 31, 2017, 2016, and 2015   

Consolidated Statements of Cash Flows for the years ended December 31, 2017, 2016 and 2015 

Notes to Consolidated Financial Statements   

Page  

  F-1 

  F-2 

  F-3 

  F-4 

  F-5 

  F-6 

  F-8 

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Report of Independent Registered Certified Public Accounting Firm 

To the Shareholders and the Board of Directors of SBA Communications Corporation and Subsidiaries  

Opinion on the Financial Statements  

We have audited the accompanying consolidated balance sheets of SBA Communications Corporation and Subsidiaries (the Company) 
as of December 31, 2017 and 2016, and the related consolidated statements of operations, comprehensive income (loss), shareholders’ 
deficit, and cash flows for each of the three years in the period ended December 31, 2017, and the related notes and financial statement 
schedule  listed  in  the  Index  at  Item  15(a)  (collectively  referred  to  as  the  “consolidated  financial  statements“).  In our  opinion,  the 
consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2017 
and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in 
conformity with U.S. generally accepted accounting principles.  

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), 
the  Company's  internal  control  over  financial  reporting  as  of  December  31,  2017,  based  on  criteria  established  in  Internal  Control-
Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our 
report dated March 1, 2018 expressed an unqualified opinion thereon.  

Basis for Opinion 

These  financial  statements  are  the  responsibility  of  the  Company‘s  management.  Our responsibility  is  to  express  an  opinion  on 
the Company‘s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required 
to  be  independent  with  respect  to  the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and 
regulations of the Securities and Exchange Commission and the PCAOB.  

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit 
to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. 
Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error 
or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding 
the  amounts  and  disclosures  in  the  financial  statements.  Our  audits  also  included  evaluating  the  accounting  principles  used  and 
significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that 
our audits provide a reasonable basis for our opinion.  

/s/ Ernst & Young LLP 

We have served as the Company’s auditor since 2002  

Boca Raton, Florida  
March 1, 2018  

F-1 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED BALANCE SHEETS  
(in thousands, except par values)  

ASSETS 

Current assets: 

Cash and cash equivalents 

Restricted cash 

Accounts receivable, net 

Costs and estimated earnings in excess of billings on uncompleted contracts 

Prepaid expenses and other current assets 

Total current assets 

Property and equipment, net 

Intangible assets, net 

Other assets 

Total assets 

LIABILITIES AND SHAREHOLDERS' DEFICIT 

Current liabilities: 

Accounts payable 

Accrued expenses 

Current maturities of long-term debt 

Deferred revenue 

Accrued interest 

Other current liabilities 

Total current liabilities 

Long-term liabilities: 

Long-term debt, net 

Other long-term liabilities 

Total long-term liabilities 

Shareholders' deficit: 

December 31, 

December 31, 

2017 

2016 

  $ 

 68,783  $ 

 146,109 

 32,924 

 90,673 

 17,437 

 49,716 

 259,533 

 2,812,346 

 3,598,131 

 650,195 

 36,786 

 78,344 

 11,127 

 52,205 

 324,571 

 2,792,076 

 3,656,924 

 587,374 

  $ 

 7,320,205  $ 

 7,360,945 

  $ 

 33,334  $ 

 69,862 

 20,000 

 97,969 

 48,899 

 8,841 

 278,905 

 9,290,686 

 349,728 

 9,640,414 

 28,320 

 61,129 

 627,157 

 101,098 

 44,503 

 11,240 

 873,447 

 8,148,426 

 334,993 

 8,483,419 

Preferred stock - par value $.01, 30,000 shares authorized, no shares issued or outst. 

 — 

 — 

Common stock - Class A, par value $.01, 400,000 shares authorized, 116,446 

and 121,004 shares issued and outstanding at December 31, 2017 

and December 31, 2016, respectively 

Additional paid-in capital 

Accumulated deficit 

Accumulated other comprehensive loss, net 

Total shareholders' deficit 

Total liabilities and shareholders' deficit 

 1,164 

 2,167,470 

 (4,388,288)

 (379,460)

 1,210 

 2,010,520 

 (3,637,467) 

 (370,184) 

 (2,599,114)

 (1,995,921) 

  $ 

 7,320,205  $ 

 7,360,945 

The accompanying notes are an integral part of these consolidated financial statements.  

F-2 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF OPERATIONS  
(in thousands, except per share amounts)  

Revenues: 

Site leasing 

Site development 

Total revenues 

Operating expenses: 

Cost of revenues (exclusive of depreciation, accretion, and 

 amortization shown below): 

Cost of site leasing 

Cost of site development 

Selling, general, and administrative 

Acquisition related adjustments and expenses 

Asset impairment and decommission costs 

Depreciation, accretion, and amortization 

Total operating expenses 

Operating income 

Other income (expense): 

Interest income 

Interest expense 

Non-cash interest expense 

Amortization of deferred financing fees 

Loss from extinguishment of debt, net 

Other income (expense), net 

Total other expense, net 

Income (loss) before provision for income taxes 

Provision for income taxes 

Net income (loss) 

Net income (loss) per common share: 

Basic 

Diluted 

Weighted average common shares outstanding: 

Basic 

Diluted 

For the year ended December 31, 

2017 

2016 

2015 

$ 

 1,623,173  $ 

 1,538,070   $ 

 1,480,634 

 104,501 

 95,055  

 157,840 

 1,727,674 

 1,633,125  

 1,638,474 

 359,527 

 86,785 

 342,215  

 78,682  

 324,655 

 119,744 

 130,697 

 143,349  

 114,951 

 12,367 

 36,697 

 13,140  

 30,242  

 11,864 

 94,783 

 643,100  

 638,189  

 660,021 

 1,269,173  

 1,245,817  

 1,326,018 

 458,501  

 387,308  

 312,456 

 11,337  

 10,928  

 3,894 

 (323,749)  

 (329,171)  

 (322,366) 

 (2,879)  

 (21,940)  

 (1,961)  

 (2,418)  

 (2,203)  

 (21,136)  

 (52,701)  

 (1,505) 

 (19,154) 

 (783) 

 94,278  

 (139,137) 

 (341,610)  

 (300,005)  

 (479,051) 

 116,891  

 (13,237)  

 87,303  

 (166,595) 

 (11,065)  

 (9,061) 

$ 

 103,654   $ 

 76,238   $ 

 (175,656) 

$ 

$ 

 0.86   $ 

 0.86   $ 

 0.61   $ 

 0.61   $ 

 (1.37) 

 (1.37) 

 119,860  

 121,022  

 124,448  

 125,144  

 127,794 

 127,794 

The accompanying notes are an integral part of these consolidated financial statements.  

F-3 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)  
 (in thousands)  

For the year ended December 31, 

2017 

2016 

2015 

Net income (loss) 

  $ 

 103,654   $ 

 76,238   $ 

 (175,656) 

Foreign currency translation adjustments 

 (9,276)  

 131,861  

 (319,559) 

Comprehensive income (loss) 

  $ 

 94,378   $ 

 208,099   $ 

 (495,215) 

The accompanying notes are an integral part of these consolidated financial statements.  

F-4 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ DEFICIT 
 (in thousands)  

Class A 

  Additional 

Other  

Common Stock 

Paid-In 

  Accumulated 

  Comprehensive     

  Accumulated     

Shares 

  Amount 

Capital 

Deficit 

Loss 

Total 

BALANCE, December 31, 2014 

 129,134 

 $

 1,291 

 $ 2,062,775 

 $ (2,542,380)   $  (182,486)  $ 

 (660,800) 

Net loss 

Common stock issued in connection with 

stock purchase/option plans 

Non-cash stock compensation 

Settlement of common stock warrants 

Repurchase and retirement of common stock  
Foreign currency translation adjustments 

 — 

 591 

 — 

 — 

 — 

 6 

 — 

 — 

 — 

 (175,656)   

 — 

 (175,656) 

 21,604 

 29,208 

 (150,874)   

 — 

 — 

 — 

 — 

 — 

 — 

 21,610 

 29,208 

 (150,874) 

 (3,982)   

 (40)   

 —  

 (450,033)   

 —  

 (450,073)

 — 

 — 

 — 

 — 

 (319,559) 

 (319,559) 

BALANCE, December 31, 2015 

 125,743 

 1,257 

 1,962,713    (3,168,069)   

 (502,045)

  (1,706,144)

Net income 

Common stock issued in connection with 

stock purchase/option plans 

Non-cash stock compensation 

 — 

 602 

 — 

 — 

 6 

 — 

 — 

 76,238 

 — 

 76,238 

 14,404 

 33,403 

 — 

 — 

 — 

 — 

 14,410 

 33,403 

Repurchase and retirement of common stock  
Foreign currency translation adjustments 

 (5,341)   

 (53)   

 —  

 (545,636)   

 —  

 (545,689)

 — 

 — 

 — 

 — 

 131,861 

 131,861 

BALANCE, December 31, 2016 

 121,004 

 1,210 

 2,010,520    (3,637,467)   

 (370,184)

  (1,995,921)

Net income 

Common stock issued in connection with 

stock purchase/option plans 

Non-cash stock compensation 

Common stock issued in connection with 

acquisitions 

 — 

 — 

 — 

 103,654  

 — 

 103,654

 812  

 —  

 8  

 —  

 54,798  

 38,844  

 488  

 5  

 63,308  

 — 

 — 

 — 

 —  

 54,806

 — 

 38,844

 —  

 63,313

Repurchase and retirement of common stock  
Foreign currency translation adjustments 

 (5,858)  

 (59)  

 —  

 (854,475)  

 —  

 (854,534)

 — 

 — 

 — 

 — 

 (9,276)

 (9,276)

BALANCE, December 31, 2017 

 116,446  $

 1,164  $  2,167,470  $ (4,388,288)  $  (379,460) $  (2,599,114)

The accompanying notes are an integral part of these consolidated financial statements  

F-5 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF CASH FLOWS (in thousands)  

CASH FLOWS FROM OPERATING ACTIVITIES: 

Net income (loss) 

  $ 

 103,654   $ 

 76,238   $ 

 (175,656)

Adjustments to reconcile net income (loss) to net cash provided by operating activities: 

For the year ended December 31, 

2017 

2016 

2015 

Depreciation, accretion, and amortization 

Non-cash asset impairment and decommission costs 

Non-cash compensation expense 

Amortization of deferred financing fees  

(Gain) loss on remeasurement of U.S. denominated intercompany loan 

Gain on sale of cost method investments 

Loss from extinguishment of debt, net 

Provision for doubtful accounts 

Other non-cash items reflected in the Statements of Operations 

Changes in operating assets and liabilities, net of acquisitions: 

AR and costs and est. earnings in excess of billings on uncompleted contracts, net 

Prepaid expenses and other assets 

Accounts payable and accrued expenses 

Other liabilities 

Net cash provided by operating activities 

CASH FLOWS FROM INVESTING ACTIVITIES: 

Acquisitions 

Capital expenditures 

Proceeds from sale of investments 

Other investing activities 

Net cash used in investing activities 

CASH FLOWS FROM FINANCING ACTIVITIES: 

Borrowings under Revolving Credit Facility 

Repayments under Revolving Credit Facility 

Repayment of Term Loans 

Proceeds from issuance of Term Loans, net of fees 

Payments for settlement of common stock warrants 

Payment for the redemption of 5.625% Senior Notes 

Payment for the redemption of 5.75% Senior Notes 

Proceeds from issuance of Senior Notes, net of fees 

Proceeds from issuance of Tower Securities, net of fees 

Repayment of Tower Securities 

Repurchase and retirement of common stock, inclusive of fees 

Other financing activities 

Net cash provided by (used in) financing activities 

Effect of exchange rate changes on cash, cash equivalents, and restricted cash 

NET CHANGE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH 

CASH, CASH EQUIVALENTS, AND RESTRICTED CASH: 

 643,100  

 32,423  

 38,249  

 21,940  

 8,754  

 — 

 1,961  

 2,909  

 (4,850) 

 (20,893) 

 (16,888) 

 3,555  

 4,556  

 818,470  

 (441,547) 

 (147,044) 

 231  

 (16,747) 

 (605,107) 

 525,000  

 (875,000) 

 (20,000) 

 — 

 — 

 — 

 — 

 741,108  

 749,764  

 (610,000) 

 (854,534) 

 49,088  

 (294,574) 

 (464) 

 (81,675) 

 638,189  

 25,693  

 32,915  

 21,136  

 (90,030) 

 — 

 52,701  

 22,516  

 (1,225) 

 (7,270) 

 (40,289) 

 (10,516) 

 22,467  

 742,525  

 (276,835) 

 (139,982) 

 712  

 (12,130) 

 (428,235) 

 580,000  

 (190,000) 

 (20,000) 

 — 

 — 

 (514,065) 

 (825,795) 

 1,078,123  

 690,475  

 (550,000) 

 (545,689) 

 8,394  

 (288,557) 

 13,618  

 39,351  

Beginning of year 

End of year 

 185,970  

 146,619  

  $ 

 104,295   $ 

 185,970   $ 

(continued) 
F-6 

 660,021 

 89,406 

 28,747 

 19,154 

 178,854 

 (38,326)

 783 

 896 

 (5,255)

 15,975 

 (62,934)

 7,366 

 3,999 

 723,030 

 (609,530)

 (208,707)

 89,728 

 (8,556)

 (737,065)

 770,000 

 (895,000)

 (190,000)

 489,884 

 (150,874)

 —

 —

 —

 489,100 

 —

 (450,073)

 12,714 

 75,751 

 (12,993)

 48,723 

 97,896 

 146,619 

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SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF CASH FLOWS  
(in thousands) 

For the year ended December 31, 

2017 

2016 

2015 

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: 

Cash paid during the period for: 

Interest 

Income taxes 

SUPPLEMENTAL CASH FLOW INFORMATION OF NON-CASH 

ACTIVITIES: 

Assets acquired through capital leases 

Common stock issued in connection with acquisitions 

  $ 

  $ 

  $ 

  $ 

 319,562   $ 

 338,409   $ 

 322,396 

 14,653   $ 

 9,655   $ 

 9,431 

 254   $ 

 63,313   $ 

 1,386   $ 

 —   $ 

 2,627 

 — 

The accompanying notes are an integral part of these consolidated financial statements.  

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1.  GENERAL  

SBA COMMUNICATIONS CORPORATION AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  

SBA Communications Corporation (the “Company” or “SBAC”) was incorporated in the State of Florida in March 1997. The 

Company is a holding company that holds all of the outstanding capital stock of SBA Telecommunications, LLC 
(“Telecommunications”). Telecommunications is a holding company that holds the outstanding capital stock of SBA Senior Finance, 
LLC (“SBA Senior Finance”), and other operating subsidiaries which are not a party to any loan agreement. SBA Senior Finance is a 
holding company that holds, directly or indirectly, the equity interest in certain subsidiaries that issued the Tower Securities (see Note 
12) and certain subsidiaries that were not involved in the issuance of the Tower Securities. With respect to the subsidiaries involved in 
the issuance of the Tower Securities, SBA Senior Finance is the sole member of SBA Holdings, LLC and SBA Depositor, LLC. SBA 
Holdings, LLC is the sole member of SBA Guarantor, LLC. SBA Guarantor, LLC directly or indirectly holds all of the capital stock of 
the companies referred to as the “Borrowers” under the Tower Securities. With respect to subsidiaries not involved in the issuance of 
the Tower Securities, SBA Senior Finance holds all of the membership interests in SBA Senior Finance II, LLC (“SBA Senior 
Finance II”) and certain non-operating subsidiaries. SBA Senior Finance II holds, directly or indirectly, all the capital stock of certain 
international subsidiaries and certain other tower companies (known as “Tower Companies”). SBA Senior Finance II also holds, 
directly or indirectly, all the capital stock and/or membership interests of certain other subsidiaries involved in providing services, 
including SBA Network Services, LLC (“Network Services”) as well as SBA Network Management, Inc. (“Network Management”) 
which manages and administers the operations of the Borrowers.   

As of December 31, 2017, the Company owned and operated wireless towers in the United States and its territories. In addition, 
the Company owned towers in Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Nicaragua, 
Panama, and Peru. Space on these towers is leased primarily to wireless service providers. As of December 31, 2017, the Company 
owned and operated 27,909 towers of which 15,979 are domestic and 11,930 are international. 

2. 

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  

A summary of the significant accounting policies applied in the preparation of the accompanying consolidated financial 

statements is as follows:  

Principles of Consolidation  

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the 
United States of America (“U.S. GAAP”) and include the Company and its majority and wholly-owned subsidiaries. All significant 
intercompany accounts and transactions have been eliminated in consolidation.  

Use of Estimates  

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates 

and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The significant 
estimates made by management relate to the allowance for doubtful accounts, the costs and revenue relating to the Company’s 
construction contracts, stock-based compensation assumptions, valuation allowance related to deferred tax assets, fair value of long-
lived assets, the useful lives of towers and intangible assets, anticipated property tax assessments, fair value of investments and asset 
retirement obligations. Management develops estimates based on historical experience and on various assumptions about the future 
that are believed to be reasonable based on the information available. These estimates ultimately may differ from actual results and 
such differences could be material.  

Cash and Cash Equivalents 

Cash and cash equivalents consist primarily of cash in banks, money market funds, commercial paper, highly liquid short-term 

investments, and other marketable securities with an original maturity of three months or less at the time of purchase. These 
investments are carried at cost, which approximates fair value.  

Restricted Cash  

The Company classifies all cash pledged as collateral to secure certain obligations and all cash whose use is limited as restricted 

cash. This includes cash held in escrow to fund certain reserve accounts relating to the Tower Securities as well as for payment and 

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performance bonds and surety bonds issued for the benefit of the Company in the ordinary course of business, as well as collateral 
associated with workers’ compensation plans (see Note 4).  

Investments 

Investment securities with original maturities of more than three months but less than one year at time of purchase are 

considered short-term investments. The Company’s short-term investments primarily consist of certificates of deposit with maturities 
of less than a year. Investment securities with maturities of more than a year are considered long-term investments and are classified in 
other assets on the accompanying Consolidated Balance Sheets. Long-term investments primarily consist of U.S. Treasuries, mutual 
funds, and preferred securities. Gross purchases and sales of the Company’s investments are presented within “Cash flows from 
investing activities” on the Company’s Consolidated Statements of Cash Flows.  

The Company accounts for its investments in privately held companies under the cost and equity method. The Company 
evaluates its investments for impairment at least annually. The Company determines the fair value of its investments by considering 
available evidence, including general market conditions, the investee’s financial condition, near-term prospects, market comparables 
and subsequent rounds of financing. The Company measures and records its investments at fair value when they are deemed to be 
other-than-temporarily impaired. The Company did not recognize any impairment loss associated with its investments during the years 
ended December 31, 2017, 2016, and 2015.  

During the years ended December 31, 2017 and 2016, the Company received proceeds related to the sale or maturity of 
investments of $0.2 million and $0.7 million, respectively. During the year ended December 31, 2017 and 2016, no gain or loss was 
recorded related to the sale or maturity of investments. The proceeds are reflected in Net cash used in investing activities on the 
Consolidated Statements of Cash Flows, and the related gain or loss on sale or maturity is reflected in Other income (expense), net in 
the accompanying Consolidated Statement of Operations. The aggregate carrying value of the Company’s investments was 
approximately $8.6 million and $8.1 million as of December 31, 2017 and 2016, respectively, and is classified within short-term 
investments and other assets on the Company’s consolidated balance sheets. 

Property and Equipment  

Property and equipment are recorded at cost or at estimated fair value (in the case of acquired properties), adjusted for asset 

impairment and estimated asset retirement obligations. Costs for self-constructed towers include direct materials and labor, indirect 
costs and capitalized interest. Approximately $1.1 million, $1.0 million, and $0.8 million of interest cost was capitalized in 2017, 2016 
and 2015, respectively.  

Depreciation on towers and related components is provided using the straight-line method over the estimated useful lives, not to 

exceed the minimum lease term of the underlying ground lease. The Company defines the minimum lease term as the shorter of the 
period from lease inception through the end of the term of all tenant lease obligations in existence at ground lease inception, including 
renewal periods, or the ground lease term, including renewal periods. If no tenant lease obligation exists at the date of ground lease 
inception, the initial term of the ground lease is considered the minimum lease term. Leasehold improvements are amortized on a 
straight-line basis over the shorter of the useful life of the improvement or the minimum lease term of the lease. For all other property 
and equipment, depreciation is provided using the straight-line method over the estimated useful lives.  

The Company performs ongoing evaluations of the estimated useful lives of its property and equipment for depreciation 
purposes. The estimated useful lives are determined and continually evaluated based on the period over which services are expected to 
be rendered by the asset. If the useful lives of assets are reduced, depreciation may be accelerated in future years. Property and 
equipment under capital leases are amortized on a straight-line basis over the term of the lease or the remaining estimated life of the 
leased property, whichever is shorter, and the related amortization is included in depreciation expense. Expenditures for maintenance 
and repair are expensed as incurred.  

Asset classes and related estimated useful lives are as follows:  

Towers and related components 
Furniture, equipment and vehicles   
Buildings and improvements 

  3 - 15  years
 2 - 7 years
  10 - 30  years

Betterments, improvements, and significant repairs, which increase the value or extend the life of an asset, are capitalized and 

depreciated over the estimated useful life of the respective asset. Changes in an asset’s estimated useful life are accounted for 

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prospectively, with the book value of the asset at the time of the change being depreciated over the revised remaining useful life. 
There has been no material impact for changes in estimated useful lives for any years presented.  

Deferred Financing Fees  

Financing fees related to the issuance of debt have been deferred and are being amortized using the effective interest rate 
method over the expected duration of the related indebtedness (see Note 12). For all of the Company’s debt, except for the Revolving 
Credit Facility where the debt issuance costs are being presented as an asset on the accompanying Consolidated Balance Sheet, debt 
issuance costs are presented on the balance sheet as a direct deduction from the related debt liability rather than as an asset.  

Deferred Lease Costs  

The Company defers certain initial direct costs associated with the origination of tenant leases and lease amendments and 
amortizes these costs over the initial lease term or over the lease term remaining if related to a lease amendment. Such deferred costs 
were approximately $11.0 million, $10.2 million, and $10.9 million in 2017, 2016, and 2015, respectively. Amortization expense was 
$13.1 million, $11.3 million, and $9.0 million for the years ended December 31, 2017, 2016 and 2015, respectively, and is included in 
cost of site leasing on the accompanying Consolidated Statements of Operations. As of December 31, 2017 and 2016, unamortized 
deferred lease costs were $27.7 million and $29.7 million, respectively, and are included in other assets on the accompanying 
Consolidated Balance Sheets.  

Intangible Assets  

The Company classifies as intangible assets the fair value of current leases in place at the acquisition date of towers and related 

assets (referred to as the “Current contract intangibles”), and the fair value of future tenant leases anticipated to be added to the 
acquired towers (referred to as the “Network location intangibles”). These intangibles are estimated to have a useful life consistent 
with the useful life of the related tower assets, which is typically 15 years. For all intangible assets, amortization is provided using the 
straight-line method over the estimated useful lives as the benefit associated with these intangible assets is anticipated to be derived 
evenly over the life of the asset.  

Impairment of Long-Lived Assets  

The Company evaluates its individual long-lived and related assets with finite lives for indicators of impairment to determine 
when an impairment analysis should be performed. The Company evaluates its tower assets and Current contract intangibles at the 
tower level, which is the lowest level for which identifiable cash flows exists. The Company evaluates its Network location 
intangibles for impairment at the tower leasing business level whenever indicators of impairment are present. The Company has 
established a policy to at least annually evaluate its tower assets and Current contract intangibles for impairment.  

The Company records an impairment charge when the Company believes an investment in towers or related assets has been 

impaired, such that future undiscounted cash flows would not recover the then current carrying value of the investment in the tower 
and related intangible. If the future undiscounted cash flows are lower than the carrying value of the investment in the tower and 
related intangible, the Company calculates future discounted cash flows and compares those amounts to the carrying value. The 
Company records an impairment charge for any amounts lower than the carrying value. Estimates and assumptions inherent in the 
impairment evaluation include, but are not limited to, general market and economic conditions, historical operating results, geographic 
location, lease-up potential and expected timing of lease-up. In addition, the Company makes certain assumptions in determining an 
asset’s fair value for the purpose of calculating the amount of an impairment charge.  

The Company recognized impairment charges of $36.7 million, $30.2 million, and $94.8 million for the years ended December 

31, 2017, 2016 and 2015, respectively. Refer to Note 3 for further detail of these amounts. 

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Fair Value Measurements  

The Company determines the fair market values of its financial instruments based on the fair value hierarchy, which requires an 

entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The 
following three levels of inputs may be used to measure fair value:   

Level 1 

Level 2 

Level 3 

Quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the 
measurement date. 

Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in 
markets that are not active; or other inputs that are observable or can be corroborated by observable market data for 
substantially the full term of the assets or liabilities. 

Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the 
assets or liabilities. 

Revenue Recognition  

Revenue from site leasing is recorded monthly and recognized on a straight-line basis over the current term of the related lease 

agreements, which are generally five to ten years. Receivables recorded related to the straight-lining of site leases are reflected in other 
assets on the Consolidated Balance Sheets. Rental amounts received in advance are recorded as deferred revenue on the Consolidated 
Balance Sheets.  

Site development projects in which the Company performs consulting services include contracts on a time and materials basis or 

a fixed price basis. Time and materials based contracts are billed at contractual rates and revenue is recognized as the services are 
rendered. For those site development contracts in which the Company performs work on a fixed price basis, site development billing 
(and revenue recognition) is based on the completion of agreed upon phases of the project on a per site basis. Upon the completion of 
each phase on a per site basis, the Company recognizes the revenue related to that phase. Site development projects generally take 
from 3 to 12 months to complete. Amounts billed in advance (collected or uncollected) are recorded as deferred revenue on the 
Company’s Consolidated Balance Sheets. 

Revenue from construction projects is recognized on the percentage-of-completion method of accounting, determined by the 
percentage of cost incurred to date compared to management’s estimated total cost for each contract. This method is used because 
management considers total cost to be the best available measure of progress on the contracts. These amounts are based on estimates, 
and the uncertainty inherent in the estimates initially is reduced as work on the contracts nears completion. The asset “costs and 
estimated earnings in excess of billings on uncompleted contracts” represents costs incurred and revenues recognized in excess of 
amounts billed. The liability “billings in excess of costs and estimated earnings on uncompleted contracts,” included within other 
current liabilities on the Company’s Consolidated Balance Sheets, represents billings in excess of costs incurred and revenues 
recognized. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined to be 
probable.  

Allowance for Doubtful Accounts  

The Company performs periodic credit evaluations of its customers. The Company monitors collections and payments from its 
customers and maintains a provision for estimated credit losses based upon historical experience, specific customer collection issues 
identified, and past due balances as determined based on contractual terms. Interest is charged on outstanding receivables from 
customers on a case by case basis in accordance with the terms of the respective contracts or agreements with those customers. 
Amounts determined to be uncollectible are written off against the allowance for doubtful accounts in the period in which 
uncollectibility is determined to be probable.  

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The following is a rollforward of the allowance for doubtful accounts: 

For the year ended December 31, 

2017 

2016 

2015 

(in thousands) 

Beginning balance 

  $ 

 24,518   $ 

 1,681   $ 

Provision for doubtful accounts 

Write-offs, net of recoveries 

Currency translation adjustment 

 2,909  

 (647)  

 (299)  

 22,516  

 (614)  

 935  

 889 

 896 

 (72) 

 (32) 

Ending balance 

  $ 

 26,481   $ 

 24,518   $ 

 1,681 

On June 20, 2016, Oi, S.A. (“Oi”), the Company’s largest customer in Brazil, filed a petition for judicial reorganization in 
Brazil. Prior to the filing of the reorganization petition, Oi was current in all payment obligations to the Company. These obligations 
related to periods ending on or before April 30, 2016. As a result of the relief provisions available in a judicial reorganization 
proceeding, obligations of Oi to the Company arising from the periods from May 1, 2016 to June 20, 2016 remain unpaid. Due to the 
uncertainty surrounding the recoverability of amounts owed by Oi relating to services provided prior to the date of Oi’s petition, the 
Company has recorded a $16.5 million bad debt provision (the “Oi reserve”) which covers amounts owed or potentially owed by Oi as 
of the filing date. Under Brazilian law governing judicial reorganizations, the contracts governing post-petition obligations such as 
tower rents remain unchanged, and debtors do not have the ability to reject or terminate the contracts other than pursuant to their 
original terms. Since the filing, the Company has received all rental payments due in connection with obligations of Oi accruing post-
petition. The Oi reserve was recorded in Selling, general, and administrative expense on the consolidated statement of operations for 
the year ended December 31, 2016. On January 8, 2018, Oi’s reorganization plan was approved by the Brazilian courts and Oi is 
expected to fully resolve all its pre-petition obligations in accordance with the terms of the plan. 

Cost of Revenue  

Cost of site leasing revenue includes ground lease rent, property taxes, amortization of deferred lease costs, maintenance and 

other tower operating expenses. All ground lease rental obligations due to be paid out over the lease term, including fixed escalations, 
are recorded on a straight-line basis over the minimum lease term. Liabilities recorded related to the straight-lining of ground leases 
are reflected in other long-term liabilities on the Consolidated Balance Sheets. Cost of site development revenue includes the cost of 
materials, salaries and labor costs, including payroll taxes, subcontract labor, vehicle expense and other costs directly and indirectly 
related to the projects. All costs related to site development projects are recognized as incurred.  

Income Taxes 

The Company recognizes deferred tax assets and liabilities for the estimated future tax consequences attributable to differences 

between the financial reporting and tax bases of existing assets and liabilities. Deferred tax assets and liabilities are measured using 
tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is recorded to reduce 
the carrying amounts of deferred tax assets if it is "more-likely-than-not" that those assets will not be realized. The Company  
considers many factors when assessing the likelihood of future realization, including the Company's recent cumulative earnings 
experience by taxing jurisdiction, expectations of future taxable income, prudent and feasible tax planning strategies that are available, 
the carryforward periods available to the Company for tax reporting purposes and other relevant factors. 

The Company began operating as a REIT for federal income tax purposes effective January 1, 2016.  As a REIT, the Company 
generally is not subject to corporate level federal income tax on taxable income it distributes to its stockholders as long as it meets the 
organizational and operational requirements under the REIT rules. However, certain subsidiaries have made an election with the IRS 
to be treated as a taxable REIT subsidiary (“TRS”) in conjunction with the Company's REIT election. The TRS elections permit SBA 
to engage in certain business activities in which the REIT may not engage directly, so long as these activities are conducted in entities 
that elect to be treated as TRSs under the Internal Revenue Code.  A TRS is subject to federal and state income taxes on the income 
from these activities. Additionally, the Company has included in TRSs the Company’s tower operations in most foreign jurisdictions; 
however, the REIT holds selected tower assets in Puerto Rico and USVI. Those operations will continue to be subject to foreign taxes 
in the jurisdiction in which such assets and operations are located regardless of whether they are included in a TRS. 

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The Company will continue to file separate federal tax returns for the REIT and TRS for the year ended December 31, 2017. 

The REIT had taxable income and utilized net operating losses (“NOLs”) to offset its distribution requirement. The TRS generated a 
NOL which will be carried forward to use in future years. The NOLs generated by the TRS are fully reserved by a valuation 
allowance. 

The Company records a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be 
taken in a tax return. The Company has not identified any tax exposures that require a reserve. To the extent that the Company records 
unrecognized tax exposures, any related interest and penalties will be recognized as interest expense in the Company’s Consolidated 
Statements of Operations.  

Stock-Based Compensation  

The Company measures and recognizes compensation expense for all share-based payment awards made to employees and 
directors, including stock options, restricted stock units and employee stock purchases under employee stock purchase plans. The 
Company records compensation expense, for stock options and restricted stock units on a straight-line basis over the vesting period. 
Compensation expense for employee stock options is based on the estimated fair value of the options on the date of the grant using the 
Black-Scholes option-pricing model. Compensation expense for restricted stock units is based on the fair market value of the units 
awarded at the date of the grant.  

Asset Retirement Obligations  

The Company has entered into ground leases for the land underlying the majority of the Company’s towers. A majority of these 

leases require the Company to restore land interests to their original condition upon termination of the ground lease.  

The Company recognizes asset retirement obligations in the period in which they are incurred, if a reasonable estimate of a fair 
value can be made, and accretes such liability through the obligation’s estimated settlement date. The associated asset retirement costs 
are capitalized as part of the carrying amount of the related tower fixed assets, and over time, the liability is accreted to its present 
value each period and the capitalized cost is depreciated over the estimated useful life of the tower.  

The asset retirement obligation is included in other long-term liabilities on the Consolidated Balance Sheets. Upon settlement of 
the obligations, any difference between the cost to retire an asset and the recorded liability is recorded in the Consolidated Statements 
of Operations. In determining the measurement of the asset retirement obligations, the Company considered the nature and scope of 
the contractual restoration obligations contained in the Company’s ground leases, the historical retirement experience as an indicator 
of future restoration probabilities, intent in renewing existing ground leases through lease termination dates, current and future value 
and timing of estimated restoration costs and the credit adjusted risk-free rate used to discount future obligations.  

The following summarizes the activity of the asset retirement obligation liability: 

Beginning balance 

Additions 

Currency translation adjustment 

Accretion expense 

Removal 

Revision in estimates 

Ending balance 

For the year ended December 31, 

2017 

2016 

2015 

  $ 

 6,442   $ 

 6,309   $ 

 5,856 

(in thousands) 

 818  

 (10)  

 665  

 (280)  

 (421)  

 1,091  

 121  

 318  

 (290)  

 (1,107)  

  $ 

 7,214   $ 

 6,442   $ 

 781 

 (57) 

 373 

 (50) 

 (594) 

 6,309 

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Comprehensive Income (Loss)  

Comprehensive income (loss) is defined as the change in equity (net assets) of a business enterprise during a period from 

transactions and other events and circumstances from non-owner sources, and is comprised of net income (loss) and other foreign 
currency adjustments.  

Foreign Currency Translation  

All assets and liabilities of foreign subsidiaries that do not utilize the U.S. dollar as its functional currency are translated at 
period-end rates of exchange, while revenues and expenses are translated at monthly average rates of exchange prevailing during the 
year. Unrealized remeasurement gains and losses are reported as foreign currency translation adjustments through Accumulated Other 
Comprehensive Loss in the accompanying Consolidated Statement of Shareholders’ Deficit.  

For foreign subsidiaries where the U.S. dollar is the functional currency, monetary assets and liabilities of such subsidiaries, 

which are not denominated in U.S. dollars, are remeasured at exchange rates in effect at the balance sheet date, and revenues and 
expenses are remeasured at monthly average rates prevailing during the year. Unrealized translation gains and losses are reported as 
other income (expense), net in the Consolidated Statement of Operations. 

Acquisitions 

In January 2017, the FASB issued ASU 2017-01, Clarifying the Definition of a Business. ASU 2017-01 provides revised 

guidance to determine when an acquisition meets the definition of a business or when the acquisition should be accounted for as an 
asset acquisition. The Company adopted this standard effective January 1, 2017 and all changes are being accounted for prospectively. 
The adoption of ASU 2017-01 did not have a material impact on the Company’s unaudited consolidated financial statements and 
related disclosures. 

Under the new standard, the Company’s acquisitions will generally qualify for asset acquisition treatment under ASC 360, 

Property, Plant, and Equipment, rather than business combination treatment under ASC 805 Business Combinations. For acquisitions 
which qualify as asset acquisitions, the aggregate purchase price is allocated on a relative fair value basis to towers and related 
intangible assets. For asset acquisitions, external, direct transaction costs will be capitalized as a component of the cost of the asset 
acquired. The Company will continue to expense internal acquisition costs as incurred. 

The Company accounts for business combinations under the acquisition method of accounting. The assets and liabilities 
acquired are recorded at fair market value at the date of each acquisition and the results of operations of the acquired assets are 
included with those from the dates of the respective acquisitions. The Company continues to evaluate all acquisitions for a period not 
to exceed one year after the applicable closing date of each transaction to determine whether any additional adjustments are needed to 
the allocation of the purchase price paid for the assets acquired and liabilities assumed as a result of information available at the 
acquisition date.  

The fair values of net assets acquired are based on management’s estimates and assumptions, as well as other information 

compiled by management, including valuations that utilize customary valuation procedures and techniques. The fair value estimates 
are based on available historical information and on future expectations and assumptions deemed reasonable by management at the 
time. If the actual results differ from the estimates and judgments used in these fair values, the amounts recorded in the consolidated 
financial statements could be subject to a possible impairment of the intangible assets, or require acceleration of the amortization 
expense of intangible assets in subsequent periods.  

In connection with certain acquisitions, the Company may agree to pay contingent consideration (or earnouts) in cash or stock 

if the communication sites or businesses that are acquired meet or exceed certain performance targets over a period of one to three 
years after they have been acquired. The Company accrues for contingent consideration in connection with business combinations at 
fair value as of the date of the acquisition. All subsequent changes in fair value of contingent consideration payable in cash are 
recorded through Consolidated Statements of Operations. Contingent consideration in connection with asset acquisitions will be 
recognized at the time when the contingency is resolved or becomes payable and will increase the cost basis of the assets acquired. 

Intercompany Loans Subject to Remeasurement 

The Company has two wholly owned subsidiaries, Brazil Shareholder I, LLC, a Florida limited liability company, and SBA 

Torres Brasil, Limitada, a limitada existing under the laws of the Republic of Brazil, which have entered into intercompany loan 
agreements pursuant to which the entities may from time to time agree to lend/borrow amounts under the terms of each agreement. 
The first agreement entered into in November 2014 was for $750.0 million and was created to fund the acquisition of 1,641 towers in 
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Brazil. The second agreement entered into in December 2017 was for $500.0 million and was created to fund the acquisition of 941 
towers in Brazil.  

In accordance with ASC 830, the Company remeasures foreign denominated intercompany loans with the corresponding change 
in the balance being recorded in Other income (expense), net in the Consolidated Statements of Operations as settlement is anticipated 
or planned in the foreseeable future. For the years ended December 31, 2017, 2016, and 2015, the Company recorded a $8.8 million 
loss, a $90.0 million gain, and a $178.9 million loss, respectively, on the remeasurement of intercompany loans due to changes in 
foreign exchange rates. As of December 31, 2017, the aggregate amount outstanding under the two intercompany loan agreements 
with the Company’s Brazilian subsidiary was $560.9 million. 

Recent Accounting Pronouncements Not Yet Adopted 

In May 2014, the FASB released an updated standard regarding the recognition of revenue from contracts with customers, 

exclusive of those contracts within lease accounting. The core principle of the standard is that an entity should recognize revenue to 
depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects 
to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following steps: (1) 
identify the contracts with the customer; (2) identify the performance obligations in the contract; (3) determine the contract price; (4) 
allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies 
a performance obligation. This standard is effective for the Company in the first quarter of 2018. This standard is required to be 
applied retrospectively to each prior reporting period presented (full retrospective) or with the cumulative effect being recognized at 
the date of initial application (modified retrospective). The Company will apply the modified retrospective transition method upon 
adoption. The Company has finalized its review of the impact of adopting this new guidance, and there will not be any material 
changes to the timing or measurement of revenue recognition. The standard only affects the Company’s site development segment, 
which represents approximately 6% of the Company’s total revenues. 

In February 2016, the FASB issued ASU 2016-02, Leases. The standard requires lessees to recognize a right-of-use asset and a 

lease liability, initially measured at the present value of the lease payments for all leases with a term greater than 12 months. The 
accounting for lessors remains largely unchanged from existing guidance. This standard is effective for annual and interim periods 
beginning after December 15, 2018. Early adoption is permitted; however, the Company does not currently plan to early adopt. The 
Company has established a cross functional project plan and is assessing the impact of the standard on its consolidated financial 
statements. The Company expects this guidance to have a material impact on its consolidated balance sheet due to the recognition of 
right-of-use assets and lease liabilities for its ground leases. The Company does not expect adoption to have a significant impact on its 
lease classification or to have a material impact on its consolidated statement of operations.   

3. 

FAIR VALUE MEASUREMENTS  

Items Measured at Fair Value on a Recurring Basis— The Company’s earnout liabilities related to business combinations are 

measured at fair value on a recurring basis using Level 3 inputs and are recorded in Accrued expenses in the accompanying 
Consolidated Balance Sheets. Changes in estimates are recorded in Acquisition related adjustments and expenses in the accompanying 
Consolidated Statement of Operations. The Company determines the fair value of earnouts (contingent consideration) and any 
subsequent changes in fair value using a discounted probability-weighted approach using Level 3 inputs. Level 3 valuations rely on 
unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. 
The fair value of the earnouts is reviewed quarterly and is based on the payments the Company expects to make based on historical 
internal observations related to the anticipated performance of the underlying assets. The Company’s estimate of the fair value of its 
obligation contained in various acquisitions prior to January 1, 2017 (adoption of ASU 2017-01) was $2.5 million and $4.1 million as 
of December 31, 2017 and 2016, respectively. The maximum potential obligation related to the performance targets for these various 
acquisitions was $3.1 million and $5.8 million as of December 31, 2017 and 2016, respectively. The maximum potential obligation 
related to the performance targets for acquisitions after January 1, 2017, which have not been recorded on the Company’s 
Consolidated Balance Sheet, was $11.1 million as of December 31, 2017.  

Items Measured at Fair Value on a Nonrecurring Basis— The Company’s long-lived assets, intangibles, and asset retirement 
obligations are measured at fair value on a nonrecurring basis using Level 3 inputs. The Company considers many factors and makes 
certain assumptions when making this assessment, including but not limited to: general market and economic conditions, historical 
operating results, geographic location, lease-up potential and expected timing of lease-up. The fair value of the long-lived assets, 
intangibles, and asset retirement obligations is calculated using a discounted cash flow model.  

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Asset impairment and decommission costs for all periods presented and the related impaired assets primarily relate to the 

Company’s site leasing operating segment. The following summarizes the activity of asset impairment and decommission costs (in 
thousands): 

Asset impairment (1) 

Impairment of fiber assets (2) 

Write-off of carrying value of decommissioned towers 

Write-off and disposal of former corporate headquarters 

Gain on sale of fiber assets (2) 

Other third party decommission costs 

For the year 

ended December 31, 

2017 

2016 

2015 

  $ 

 15,389   $ 

 19,217   $ 

 10,287 

 —    

 —    

 56,733 

 16,861    

 12,967    

 21,231 

 —    

 —    

 2,345    

 1,154 

 (8,919)    

 — 

 5,378 

 4,447 

 4,632 

Total asset impairment and decommission costs 

  $ 

 36,697   $ 

 30,242   $ 

 94,783 

(1)  Represents impairment charges resulting from the Company’s regular analysis of whether the future cash flows from certain 

(2) 

towers are adequate to recover the carrying value of the investment in those towers. 
The impairment review of the fiber assets acquired in the 2012 Mobilitie transaction was triggered by a strategic decision made 
by the Company in 2015. The gain on sale in 2016 related to the sale of these fiber assets.  

Fair Value of Financial Instruments— The carrying values of cash and cash equivalents, accounts receivable, restricted cash, 

accounts payable, and short-term investments approximate their estimated fair values due to the short maturity of these instruments. 
Short-term investments consisted of $0.2 million in Treasury securities as of December 31, 2017 and 2016. The Company’s estimate 
of the fair value of its held-to-maturity investments in treasury and corporate bonds, including current portion, are based primarily 
upon Level 1 reported market values. As of December 31, 2017, the carrying value and fair value of the held-to-maturity investments, 
including current portion, was $0.5 million. As of December 31, 2016, the carrying value and fair value of the held-to-maturity 
investments, including current portion, was $0.7 million. The current portion is recorded in Prepaid and Other Current Assets in the 
accompanying Consolidated Balance Sheets, while the held-to-maturity investments are recorded in Other Assets. 

The Company determines fair value of its debt instruments utilizing various Level 2 sources including quoted prices and 
indicative quotes (non-binding quotes) from brokers that require judgment to interpret market information including implied credit 
spreads for similar borrowings on recent trades or bid/ask prices. The fair value of the Revolving Credit Facility is considered to 
approximate the carrying value because the interest payments are based on Eurodollar rates that reset monthly or more frequently. The 
Company does not believe its credit risk has changed materially from the date the applicable Eurodollar Rate plus 137.5 to 200.0 basis 
points was set for the Revolving Credit Facility. Refer to Note 12 for the fair values, principal balances, and carrying values of the 
Company’s debt instruments.  

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4. 

RESTRICTED CASH  

The cash, cash equivalents, and restricted cash balances on the consolidated statement of cash flows consists of the following: 

As of 

As of 

As of 

  December 31, 2017 

  December 31, 2016 

  December 31, 2015   

Included on Balance Sheet 

Cash and cash equivalents 

Securitization escrow accounts 

Payment and performance bonds 

Surety bonds and workers compensation 

  $ 

(in thousands) 

 68,783   $ 
 32,699  

 225  

 2,588  

 146,109   $ 
 36,607  

 118,039   
 25,135   Restricted cash - current asset 

 179  

 3,075  

 218   Restricted cash - current asset 

 3,227   Other assets - noncurrent 

Total cash, cash equivalents, and restricted cash 

  $ 

 104,295   $ 

 185,970   $ 

 146,619  

Pursuant to the terms of the Tower Securities (see Note 12), the Company is required to establish a securitization escrow 

account, held by the indenture trustee, into which all rents and other sums due on the towers that secure the Tower Securities are 
directly deposited by the lessees. These restricted cash amounts are used to fund reserve accounts for the payment of (1) debt service 
costs, (2) ground rents, real estate and personal property taxes and insurance premiums related to towers, (3) trustee and servicing 
expenses, and (4) management fees. The restricted cash in the securitization escrow account in excess of required reserve balances is 
subsequently released to the Borrowers (as defined in Note 12) monthly, provided that the Borrowers are in compliance with their debt 
service coverage ratio and that no event of default has occurred. All monies held by the indenture trustee are classified as restricted 
cash on the Company’s Consolidated Balance Sheets. 

Payment and performance bonds relate primarily to collateral requirements for tower construction currently in process by the 
Company. Cash is pledged as collateral related to surety bonds issued for the benefit of the Company or its affiliates in the ordinary 
course of business and primarily related to the Company’s tower removal obligations. As of December 31, 2017 and 2016, the 
Company had $39.5 million and $39.2 million in surety, payment and performance bonds, respectively, for which it is only required to 
post $0.5 million in collateral as of December 31, 2016. As of December 31, 2017, no collateral was required to be posted. The 
Company periodically evaluates the collateral posted for its bonds to ensure that it meets the minimum requirements. As of December 
31, 2017 and 2016, the Company had also pledged $2.5 million as collateral related to its workers compensation policy.  

5. 

PREPAID EXPENSES AND OTHER CURRENT ASSETS  

The Company’s prepaid expenses and other current assets are comprised of the following: 

Prepaid ground rent 

Other 

Total prepaid expenses and other current assets 

As of 

As of 

December 31, 2017 

December 31, 2016 

  $ 

  $ 

(in thousands) 

 32,505    $ 
 17,211  
 49,716   $ 

 33,975 

 18,230 

 52,205 

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6. 

ACQUISITIONS  

The following table summarizes the Company’s acquisition activity: 

Tower acquisitions (number of towers) 

For the year ended December 31, 

2017 

2016 

2015 

 1,425  

 531  

 893 

The following table summarizes the Company’s cash acquisition capital expenditures:  

For the year ended December 31, 

2017 

2016 

2015 

(in thousands) 

Acquisitions of towers and related intangible assets (1) 

  $ 

 392,902   $ 

 214,686   $ 

 525,802 

Land buyouts and other assets (2) 

 48,645  

 62,149  

 83,728 

Total cash acquisition capital expenditures 

  $ 

 441,547   $ 

 276,835   $ 

 609,530 

(1) 

(2) 

The year ended December 31, 2017 excludes $63.3 million of acquisition costs funded through the issuance of 487,963 shares 
of Class A common stock.  
In addition, the Company paid $18.8 million, $14.1 million, and $16.3 million for ground lease extensions and term easements 
on land underlying the Company’s towers during the years ending December 31, 2017, 2016, and 2015, respectively. The 
Company recorded these amounts in prepaid rent on its Consolidated Balance Sheets.  

For acquisitions which qualify as asset acquisitions, the aggregate purchase price is allocated on a relative fair value basis to 

towers and related intangible assets. The fair values of these net assets acquired are based on management’s estimates and 
assumptions, as well as other information compiled by management, including valuations that utilize customary valuation procedures 
and techniques. The fair value estimates are based on available historical information and on future expectations and assumptions 
deemed reasonable by management at the time. If the actual results differ from the estimates and judgments used in these fair values, 
the amounts recorded in the consolidated financial statements could be subject to a possible impairment of the intangible assets, or 
require acceleration of the amortization expense of intangible assets in subsequent periods.  

For business combinations, the estimates of the fair value of the assets acquired and liabilities assumed at the date of an 
acquisition are subject to adjustment during the measurement period (up to one year from the particular acquisition date). During the 
measurement period, the Company will adjust assets and/or liabilities if new information is obtained about facts and circumstances 
that existed as of the acquisition date that, if known, would have resulted in a revised estimated value of those assets and/or liabilities 
as of that date. The primary areas of the preliminary purchase price allocations that are not yet finalized relate to the fair value of 
certain tangible and intangible assets acquired and liabilities assumed, including contingent consideration and any related tax impact. 

During the year ended December 31, 2017, the Company acquired 1,425 completed towers and related assets and liabilities 

consisting of $114.7 million of property and equipment, $345.3 million of intangible assets, and $3.8 million of working capital 
adjustments.  

During the year ended December 31, 2016, the Company acquired 531 completed towers and related assets and liabilities for 

$214.7 million in cash consisting of $72.8 million of property and equipment, $144.4 million of intangible assets, and $2.5 million of 
working capital adjustments. 

 During the year ended December 31, 2015, the Company acquired 893 completed towers and related assets and liabilities for 

$525.8 million in cash consisting of $176.3 million of property and equipment, $351.0 million of intangible assets, and $1.5 million of 
working capital adjustments.  

Subsequent to December 31, 2017, the Company acquired 308 towers and related assets for $79.5 million in cash. 

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7. 

INTANGIBLE ASSETS, NET  

The following table provides the gross and net carrying amounts for each major class of intangible assets:  

As of December 31, 2017 

As of December 31, 2016 

  Gross carrying 

  Accumulated  

Net book 

  Gross carrying 

  Accumulated  

Net book 

amount 

amortization 

value 

amount 

amortization 

value 

Current contract intangibles 

  $ 

 4,355,171   $   (1,673,270)   $ 

 2,681,901   $ 

 4,141,968   $   (1,401,025)  $ 

 2,740,943 

Network location intangibles 

 1,617,441    

 (701,211)    

 916,230  

 1,515,348    

 (599,367)   

 915,981 

Intangible assets, net 

  $ 

 5,972,612   $   (2,374,481)   $ 

 3,598,131   $ 

 5,657,316   $   (2,000,392)  $ 

 3,656,924 

(in thousands) 

All intangible assets noted above are included in the Company’s site leasing segment. The Company amortizes its intangible 

assets using the straight-line method over 15 years. Amortization expense relating to the intangible assets above was $384.1 million, 
$369.9 million, and $363.1 million for the years ended December 31, 2017, 2016 and 2015, respectively. 

Estimated amortization expense on the Company’s intangibles assets is as follows:  

For the year ended December 31,  

(in thousands) 

2018 

2019 

2020 

2021 

2022 

  $ 

 397,596 

 397,302 

 396,445 

 363,988 

 343,536 

8. 

PROPERTY AND EQUIPMENT, NET  

Property and equipment, net (including vehicles held under capital leases) consists of the following:  

Towers and related components 

Construction-in-process 

Furniture, equipment, and vehicles 

Land, buildings, and improvements 

Total property and equipment 

Less: accumulated depreciation 

Property and equipment, net 

As of 

As of 

December 31, 2017 

December 31, 2016 

(in thousands) 

  $ 

 4,772,807  $ 

 4,563,756

 34,689 

 53,260 

 630,370 

 5,491,126 

 38,926

 50,671

 578,680

 5,232,033

 (2,678,780) 

 (2,439,957)

  $ 

 2,812,346  $ 

 2,792,076

Construction-in-process represents costs incurred related to towers that are under development and will be used in the 
Company’s operations. Depreciation expense was $258.4 million, $268.1 million, and $296.5 million for the years ended December 
31, 2017, 2016, and 2015, respectively. At December 31, 2017 and 2016, non-cash capital expenditures that are included in accounts 
payable and accrued expenses were $12.4 million and $7.0 million, respectively.  

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9. 

COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS  

Costs and estimated earnings on uncompleted contracts consist of the following:  

Costs incurred on uncompleted contracts 

Estimated earnings 

Billings to date 

As of 

As of 

December 31, 2017 

December 31, 2016 

(in thousands) 

  $ 

 31,404   $ 

 10,541  

 (24,771) 

  $ 

 17,174   $ 

 34,577 

 11,185 

 (36,027) 

 9,735 

These amounts are included in the accompanying Consolidated Balance Sheets under the following captions:  

As of 

As of 

December 31, 2017 

December 31, 2016 

(in thousands) 

Costs and estimated earnings in excess of billings on uncompleted contracts 

  $ 

 17,437   $ 

 11,127 

Billings in excess of costs and estimated earnings on 

uncompleted contracts (included in Other current liabilities) 

 (263) 

  $ 

 17,174   $ 

 (1,392) 

 9,735 

At December 31, 2017 and 2016, eight customers comprised 87.9% and 81.6%, respectively, of the costs and estimated earnings 

in excess of billings on uncompleted contracts, net of billings in excess of costs and estimated earnings.  

10.  CONCENTRATION OF CREDIT RISK  

The Company’s credit risks consist primarily of accounts receivable with national, regional, and local wireless service providers 

and federal and state government agencies. The Company performs periodic credit evaluations of its customers’ financial condition 
and provides allowances for doubtful accounts, as required, based upon factors surrounding the credit risk of specific customers, 
historical trends, and other information. The Company generally does not require collateral.  

The following is a list of significant customers (representing at least 10% of revenue for any period reported) and the percentage 

of total revenue for the specified time periods derived from such customers: 

Percentage of Total Revenues 

AT&T Wireless 

T-Mobile 

Verizon Wireless 

Sprint 

For the year ended December 31,  

2017 

2016 

2015 

25.0% 

16.5% 

15.2% 

15.1% 

25.7% 

17.0% 

15.2% 

16.1% 

24.2% 

16.0% 

13.8% 

19.6% 

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The Company’s site leasing and site development segments derive revenue from these customers. Client percentages of total 

revenue in each of the segments are as follows: 

Percentage of Domestic Site Leasing Revenue 

AT&T Wireless 

T-Mobile 

Verizon Wireless 

Sprint 

Percentage of International Site Leasing Revenue 

Oi S.A. 

Telefonica 

Claro 

Percentage of Site Development Revenue 

T-Mobile 

Sprint 

Verizon Wireless  

Nokia, Inc.  

Ericsson, Inc. 

For the year ended December 31,  

2017 

2016 

2015 

32.7% 

19.7% 

19.0% 

18.9% 

32.7% 

19.6% 

18.2% 

19.8% 

31.9% 

19.0% 

16.3% 

22.3% 

For the year ended December 31,  

2017 

2016 

2015 

42.2% 

25.7% 

10.0% 

43.9% 

26.4% 

9.4% 

48.8% 

24.7% 

8.0% 

For the year ended December 31,  

2017 

2016 

2015 

26.9% 

12.9% 

12.8% 

10.1% 

7.4% 

28.4% 

11.7% 

16.5% 

7.1% 

5.0% 

17.6% 

28.5% 

14.8% 

6.3% 

15.3% 

Five customers comprised 66.9% of total gross accounts receivable at December 31, 2017 compared to five customers which 

comprised 59.3% of total gross accounts receivable at December 31, 2016.  

11.  EARNINGS PER SHARE 

Basic earnings per share was computed by dividing net income attributable to common shareholders by the weighted-average 

number of shares of Common Stock outstanding for each respective period. Diluted earnings per share was calculated by dividing net 
income attributable to common shareholders by the weighted-average number of shares of Common Stock outstanding adjusted for 
any dilutive Common Stock equivalents, including unvested restricted stock and shares issuable upon exercise of stock options as 
determined under the “If-Converted” method and also Common Stock warrants as determined under the “Treasury Stock” method.  

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The following table sets forth basic and diluted net income per common share for the years ended December 31, 2017, 2016, 

and 2015 (in thousands, except per share data): 

Numerator: 

Net income (loss) 

Denominator: 

Basic weighted-average shares outstanding 

Dilutive impact of stock options and restricted shares 

Diluted weighted-average shares outstanding 

Net income (loss) per common share: 

Basic 

Diluted 

For the year ended December 31, 

2017 

2016 

2015 

$ 

 103,654  $ 

 76,238 

$ 

 (175,656) 

 119,860 

 124,448 

 127,794 

 1,162 

 696 

 — 

 121,022 

 125,144 

 127,794 

$ 

$ 

 0.86  $ 

 0.86  $ 

 0.61 

 0.61 

$ 

$ 

 (1.37) 

 (1.37) 

For the year ended December 31, 2017, the diluted weighted average number of common shares outstanding excluded an 
additional 1.0 million shares issuable upon exercise of the Company’s stock options because the impact would be anti-dilutive. 

For the year ended December 31, 2016, the diluted weighted average number of common shares outstanding excluded an 
additional 2.2 million shares issuable upon exercise of the Company’s stock options because the impact would be anti-dilutive. 

For the year ended December 31, 2015, all potential common stock equivalents, including 3.8 million shares of stock options 

outstanding and 0.3 million shares of restricted stock units outstanding, were excluded as the effect would be anti-dilutive. 

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12.     DEBT  

The principal values, fair values, and carrying values of debt consist of the following (in thousands):  

As of 

As of 

December 31, 2017 

December 31, 2016 

  Maturity Date   

Principal 
Balance 

Fair Value 

  Carrying Value   

Principal 
Balance 

Fair Value 

  Carrying Value 

2014 Senior Notes 

  July 15, 2022   $ 

 750,000   $ 

 770,625   $ 

 739,079   $ 

 750,000   $ 

 763,125   $ 

 736,992 

2016 Senior Notes 

  Sep. 1, 2024     

 1,100,000    

 1,127,500    

 1,081,262    

 1,100,000    

 1,083,500    

 1,078,954 

2017 Senior Notes 

  Oct. 1, 2022     

 750,000    

 750,938    

 741,437    

 —    

 —    

 — 

2012-1C Tower Securities   Dec. 11, 2017    

 —    

 —    

 —    

 610,000    

 610,165    

 607,157 

2013-1C Tower Securities   April 10, 2018    

 425,000    

 423,853    

 424,482    

 425,000    

 423,381    

 422,768 

2013-2C Tower Securities   April 11, 2023    

 575,000    

 578,433    

 568,609    

 575,000    

 563,322    

 567,545 

2013-1D Tower Securities   April 10, 2018    

 330,000    

 330,145    

 329,585    

 330,000    

 334,521    

 328,225 

2014-1C Tower Securities   Oct. 8, 2019     

 920,000    

 915,216    

 914,929    

 920,000    

 922,199    

 912,219 

2014-2C Tower Securities   Oct. 8, 2024     

 620,000    

 620,942    

 613,461    

 620,000    

 608,921    

 612,641 

2015-1C Tower Securities   Oct. 8, 2020     

 500,000    

 496,840    

 493,474    

 500,000    

 495,145    

 491,289 

2016-1C Tower Securities  

July 9, 2021     

 700,000    

 691,166    

 693,118    

 700,000    

 688,072    

 691,322 

2017-1C Tower Securities   April 11, 2022    

 760,000    

 751,404    

 751,076    

 —    

 —    

 — 

Revolving Credit Facility    Feb. 5, 2020     

 40,000    

 40,000    

 40,000    

 390,000    

 390,000    

 390,000 

2014 Term Loan 

  Mar. 24, 2021    

 1,447,500    

 1,451,119    

 1,439,373    

 1,462,500    

 1,467,984    

 1,452,039 

2015 Term Loan 

  June 10, 2022    

 487,500    

 488,109    

 480,801    

 492,500    

 494,347    

 484,432 

Total debt 

  $   9,405,000   $   9,436,290   $   9,310,686   $   8,875,000   $   8,844,682   $  8,775,583 

Less: current maturities of long-term debt 

Total long-term debt, net of current maturities 

 (20,000)      

 $   9,290,686 

 (627,157) 

 $  8,148,426 

The Company’s future principal payment obligations over the next five years (based on the outstanding debt as of December 31, 

2017 and assuming the Tower Securities are repaid at their respective anticipated repayment dates) are as follows:  

For the year ended December 31,  

(in thousands) 

2018 

2019 

2020 

2021 

2022 

$ 

 775,000 

 940,000 

 560,000 

 2,107,500 

 2,727,500 

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The table below reflects cash and non-cash interest expense amounts recognized by debt instrument for the periods presented: 

For the year ended December 31, 

2017 

2016 

2015 

Cash 

Non-cash 

Cash 

Non-cash 

Cash 

Non-cash 

Interest 

Interest 

Interest 

Interest 

Interest 

Interest 

 —  

 —  

 36,563  

 53,625  

 6,500  

 —  

 5,330  

 43,217  

 51,138  

 15,939  

 20,361  

 17,182  

 8,046  

 —  

 49,414  

 16,641  

 (207)  

 —  

 —  

 724  

 954  

 —  

 —  

 —  

 —  

 —  

 —  

 —  

 —  

 — 

 — 

 525 

 676 

 — 

(in thousands) 

 21,094  

 28,494  

 36,563  

 20,258  

 —  

 15,213  

 18,107  

 43,217  

 51,138  

 15,939  

 9,898  

 —  

 4,167  

 —  

 48,962  

 16,487  

 (366)  

 —  

 —  

 689  

 348  

 —  

 —  

 —  

 —  

 —  

 —  

 —  

 —  

 — 

 — 

 510 

 656 

 — 

 28,125  

 46,000  

 36,563  

 —  

 —  

 28,230  

 18,111  

 43,217  

 51,138  

 3,453  

 —  

 —  

 5,552  

 3,959  

 48,992  

 9,243  

 (217)  

 — 

 — 

 655 

 — 

 — 

 — 

 — 

 — 

 — 

 — 

 — 

 — 

 — 

 — 

 492 

 358 

 — 

5.625% Senior Notes 

5.75% Senior Notes 

2014 Senior Notes 

2016 Senior Notes 

2017 Senior Notes 

2010 Tower Securities 

2012-1C Tower Securities 

2013 Tower Securities 

2014 Tower Securities 

2015-1C Tower Securities 

2016-1C Tower Securities 

2017-1C Tower Securities 

Revolving Credit Facility 

2012-1 Term Loan 

2014 Term Loan 

2015 Term Loan 

Capitalized interest and other 

Total 

  $ 

 323,749   $ 

 2,879   $ 

 329,171   $ 

 2,203   $ 

 322,366   $ 

 1,505 

Senior Credit Agreement 

On February 7, 2014, SBA Senior Finance II entered into a Second Amended and Restated Credit Agreement with several banks 
and other financial institutions or entities from time to time parties to the Second Amended and Restated Credit Agreement to, among 
other things, incur the 2014 Term Loan and amend certain terms of the existing senior credit agreement (as amended, the “Senior 
Credit Agreement”). 

Terms of the Senior Credit Agreement  

The Senior Credit Agreement, as amended, requires SBA Senior Finance II to maintain specific financial ratios, including (1) a 

ratio of Consolidated Total Debt to Annualized Borrower EBITDA not to exceed 6.5 times for any fiscal quarter, (2) a ratio of 
Consolidated Total Debt and Net Hedge Exposure (calculated in accordance with the Senior Credit Agreement) to Annualized 
Borrower EBITDA for the most recently ended fiscal quarter not to exceed 6.5 times for 30 consecutive days and (3) a ratio of 
Annualized Borrower EBITDA to Annualized Cash Interest Expense (calculated in accordance with the Senior Credit Agreement) of 
not less than 2.0 times for any fiscal quarter. The Senior Credit Agreement contains customary affirmative and negative covenants 
that, among other things, limit the ability of SBA Senior Finance II and its subsidiaries to incur indebtedness, grant certain liens, make 
certain investments, enter into sale leaseback transactions, merge or consolidate, make certain restricted payments, enter into 
transactions with affiliates, and engage in certain asset dispositions, including a sale of all or substantially all of their property. The 
Senior Credit Agreement is also subject to customary events of default. Pursuant to the Second Amended and Restated Guarantee and 
Collateral Agreement, amounts borrowed under the Revolving Credit Facility, the Term Loans and certain hedging transactions that 
may be entered into by SBA Senior Finance II or the Subsidiary Guarantors (as defined in the Senior Credit Agreement) with lenders 
or their affiliates are secured by a first lien on the membership interests of SBA Telecommunications, LLC, SBA Senior Finance, LLC 

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and SBA Senior Finance II and on substantially all of the assets (other than leasehold, easement and fee interests in real property) of 
SBA Senior Finance II and the Subsidiary Guarantors.  

The Senior Credit Agreement, as amended, permits SBA Senior Finance II, without the consent of the other lenders, to request 

that one or more lenders provide SBA Senior Finance II with increases in the Revolving Credit Facility or additional term loans 
provided that after giving effect to the proposed increase in Revolving Credit Facility commitments or incremental term loans the ratio 
of Consolidated Total Debt to Annualized Borrower EBITDA would not exceed 6.5 times. SBA Senior Finance II’s ability to request 
such increases in the Revolving Credit Facility or additional term loans is subject to its compliance with customary conditions set forth 
in the Senior Credit Agreement including compliance, on a pro forma basis, with the financial covenants and ratios set forth therein 
and, with respect to any additional term loan, an increase in the margin on existing term loans to the extent required by the terms of 
the Senior Credit Agreement. Upon SBA Senior Finance II’s request, each lender may decide, in its sole discretion, whether to 
increase all or a portion of its Revolving Credit Facility commitment or whether to provide SBA Senior Finance II with additional 
term loans and, if so, upon what terms. 

Revolving Credit Facility under the Senior Credit Agreement  

The Revolving Credit Facility is governed by the Senior Credit Agreement. The Revolving Credit Facility consists of a 
revolving loan under which up to $1.0 billion aggregate principal amount may be borrowed, repaid and redrawn, based upon specific 
financial ratios and subject to the satisfaction of other customary conditions to borrowing. Amounts borrowed under the Revolving 
Credit Facility accrue interest, at SBA Senior Finance II’s election, at either (i) the Eurodollar Rate plus a margin that ranges from 
137.5 basis points to 200.0 basis points or (ii) the Base Rate plus a margin that ranges from 37.5 basis points to 100.0 basis points, in 
each case based on the ratio of Consolidated Total Debt to Annualized Borrower EBITDA, calculated in accordance with the Senior 
Credit Agreement. As of December 31, 2017, the balance outstanding under the Revolving Credit Facility was accruing interest at 
3.48% per annum. In addition, SBA Senior Finance II is required to pay a commitment fee of 0.25% per annum on the amount of 
unused commitment. If not earlier terminated by SBA Senior Finance II, the Revolving Credit Facility will terminate on, and SBA 
Senior Finance II will repay all amounts outstanding on or before, February 5, 2020. The proceeds available under the Revolving 
Credit Facility may be used for general corporate purposes. SBA Senior Finance II may, from time to time, borrow from and repay the 
Revolving Credit Facility. Consequently, the amount outstanding under the Revolving Credit Facility at the end of a period may not be 
reflective of the total amounts outstanding during such period. 

During the year ended December 31, 2017, the Company borrowed $525.0 million and repaid $875.0 million of the outstanding 

balance under the Revolving Credit Facility. As of December 31, 2017, $40.0 million was outstanding under the Revolving Credit 
Facility. As of December 31, 2017, SBA Senior Finance II was in compliance with the financial covenants contained in the Senior 
Credit Agreement. 

Subsequent to December 31, 2017, the Company borrowed an additional $55.0 million and repaid $20.0 million of the 
outstanding balance under the Revolving Credit Facility. As of the date of this filing, $75.0 million was outstanding under the 
Revolving Credit Facility. 

Term Loans under the Senior Credit Agreement 

Repricing Amendment to the Senior Credit Agreement 

On January 20, 2017, SBA Senior Finance II amended its Senior Credit Agreement, primarily to reduce the stated rate of 
interest applicable to its senior secured term loans.  As amended, the senior secured term loans accrue interest, at SBA Senior Finance 
II’s election, at either the Base Rate plus 125 basis points (with a zero Base Rate floor) or the Eurodollar Rate plus 225 basis points 
(with a zero Eurodollar Rate floor). 

2012-1 Term Loan 

The 2012-1 Term Loan consisted of a senior secured term loan with an initial aggregate principal amount of $200.0 million that 

was to mature on May 9, 2017. The 2012-1 Term Loan accrued interest, at SBA Senior Finance II’s election, at either the Base Rate 
plus a margin that ranged from 100 to 150 basis points or the Eurodollar Rate plus a margin that ranged from 200 to 250 basis points, 
in each case based on the ratio of Consolidated Total Debt to Annualized Borrower EBITDA (calculated in accordance with the Senior 
Credit Agreement). The 2012-1 Term Loan was issued at par. The Company incurred deferred financing fees of $2.7 million in 
relation to this transaction which were being amortized through the maturity date.  

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During the year ended December 31, 2015, the Company repaid the entire outstanding balance of $172.5 million on the 2012-1 

Term Loan. Included in this amount was a prepayment of $160.0 million made on November 18, 2015. In connection with the 
prepayment, the Company expensed $0.8 million of net deferred financing fees. 

2014 Term Loan 

The 2014 Term Loan consists of a senior secured term loan with an initial aggregate principal amount of $1.5 billion that 

matures on March 24, 2021. Prior to the reduction in the term loan interest rates as discussed above, the 2014 Term Loan accrued 
interest, at SBA Senior Finance II’s election, at either the Base Rate plus 150 basis points (with a Base Rate floor of 1.75%) or the 
Eurodollar Rate plus 250 basis points (with a Eurodollar Rate floor of 0.75%). The 2014 Term Loan was issued at 99.75% of par 
value. As of December 31, 2017, the 2014 Term Loan was accruing interest at 3.82% per annum. Principal payments on the 2014 
Term Loan commenced on September 30, 2014 and are being made in quarterly installments on the last day of each March, June, 
September, and December in an amount equal to $3.8 million. SBA Senior Finance II has the ability to prepay any or all amounts 
under the 2014 Term Loan. The Company incurred deferred financing fees of approximately $14.1 million in relation to this 
transaction which are being amortized through the maturity date. 

During the year ended December 31, 2017, the Company repaid $15.0 million of principal on the 2014 Term Loan. As of 

December 31, 2017, the 2014 Term Loan had a principal balance of $1,447.5 million.  

2015 Term Loan 

The 2015 Term Loan consists of a senior secured term loan with an initial aggregate principal amount of $500.0 million that 

matures on June 10, 2022. Prior to the reduction in the term loan interest rates as discussed above, the 2015 Term Loan accrued 
interest, at SBA Senior Finance II’s election, at either the Base Rate plus 150 basis points (with a Base Rate floor of 1.75%) or the 
Eurodollar Rate plus 250 basis points (with a Eurodollar Rate floor of 0.75%). The 2015 Term Loan was issued at 99.0% of par value. 
As of December 31, 2017, the 2015 Term Loan was accruing interest at 3.82% per annum. Principal payments on the 2015 Term Loan 
commenced on September 30, 2015 and are being made in quarterly installments on the last day of each March, June, September, and 
December in an amount equal to $1.3 million. SBA Senior Finance II has the ability to prepay any or all amounts under the 2015 Term 
Loan. The Company incurred deferred financing fees of approximately $5.5 million in relation to this transaction which are being 
amortized through the maturity date.  

During the year ended December 31, 2017, the Company repaid $5.0 million of principal on the 2015 Term Loan. As of 

December 31, 2017, the 2015 Term Loan had a principal balance of $487.5 million. 

Secured Tower Revenue Securities 

Tower Revenue Securities Terms 

The mortgage loan underlying the 2013 Tower Securities, 2014 Tower Securities, 2015-1C Tower Securities, 2016-1C Tower 

Securities, and 2017-1C Tower Securities (together the “Tower Securities”) will be paid from the operating cash flows from the 
aggregate 10,442 tower sites owned by the Borrowers. The sole asset of the Trust consists of a non-recourse mortgage loan made in 
favor of those entities that are borrowers on the mortgage loan (“the Borrowers”). The mortgage loan is secured by (i) mortgages, 
deeds of trust, and deeds to secure debt on a substantial portion of the tower sites, (ii) a security interest in the tower sites and 
substantially all of the Borrowers’ personal property and fixtures, (iii) the Borrowers’ rights under certain tenant leases, and (iv) all of 
the proceeds of the foregoing. For each calendar month, SBA Network Management, Inc., an indirect subsidiary (“Network 
Management”), is entitled to receive a management fee equal to 4.5% of the Borrowers’ operating revenues for the immediately 
preceding calendar month. 

The Borrowers may prepay any of the mortgage loan components, in whole or in part, with no prepayment consideration, 
(i) within twelve months (in the case of the component corresponding to the Secured Tower Revenue Securities Series 2013-1C, 
Secured Tower Revenue Securities Series 2013-1D, Secured Tower Revenue Securities Series 2014-1C, Secured Tower Revenue 
Securities Series 2015-1C, Secured Tower Revenue Securities Series 2016-1C, and Secured Tower Revenue Securities Series 2017-
1C) or eighteen months (in the case of the components corresponding to the Secured Tower Revenue Securities Series 2013-2C and 
Secured Tower Revenue Securities Series 2014-2C) of the anticipated repayment date of such mortgage loan component, (ii) with 
proceeds received as a result of any condemnation or casualty of any tower owned by the Borrowers or (iii) during an amortization 
period. In all other circumstances, the Borrowers may prepay the mortgage loan, in whole or in part, upon payment of the applicable 
prepayment consideration. The prepayment consideration is determined based on the class of the Tower Securities to which the 
prepaid mortgage loan component corresponds and consists of an amount equal to the excess, if any, of (1) the present value 

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associated with the portion of the principal balance being prepaid, calculated in accordance with the formula set forth in the mortgage 
loan agreement, on the date of prepayment of all future installments of principal and interest required to be paid from the date of 
prepayment to and including the first due date within twelve months (in the case of the component corresponding to the Secured 
Tower Revenue Securities Series 2013-1C, Secured Tower Revenue Securities Series 2013-1D, Secured Tower Revenue Securities 
Series 2014-1C, Secured Tower Revenue Securities Series 2015-1C, Secured Tower Revenue Securities Series 2016-1C, and Secured 
Tower Revenue Securities Series 2017-1C) or eighteen months (in the case of the components corresponding to the Secured Tower 
Revenue Securities Series 2013-2C and Secured Tower Revenue Securities Series 2014-2C) of the anticipated repayment date of such 
mortgage loan component over (2) that portion of the principal balance of such class prepaid on the date of such prepayment.  

To the extent that the mortgage loan components corresponding to the Tower Securities are not fully repaid by their respective 

anticipated repayment dates, the interest rate of each such component will increase by the greater of (i) 5% and (ii) the amount, if any, 
by which the sum of (x) the ten-year U.S. treasury rate plus (y) the credit-based spread for such component (as set forth in the 
mortgage loan agreement) plus (z) 5%, exceeds the original interest rate for such component.  

Pursuant to the terms of the Tower Securities, all rents and other sums due on any of the towers owned by the Borrowers are 

directly deposited by the lessees into a controlled deposit account and are held by the indenture trustee. The monies held by the 
indenture trustee after the release date are classified as short-term restricted cash on the Consolidated Balance Sheets (see Note 4). 
However, if the Debt Service Coverage Ratio, defined as the net cash flow (as defined in the mortgage loan agreement) divided by the 
amount of interest on the mortgage loan, servicing fees and trustee fees that the Borrowers are required to pay over the succeeding 
twelve months, as of the end of any calendar quarter, falls to 1.30x or lower, then all cash flow in excess of amounts required to make 
debt service payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other 
payments required under the loan documents, referred to as “excess cash flow,” will be deposited into a reserve account instead of 
being released to the Borrowers. The funds in the reserve account will not be released to the Borrowers unless the Debt Service 
Coverage Ratio exceeds 1.30x for two consecutive calendar quarters. If the Debt Service Coverage Ratio falls below 1.15x as of the 
end of any calendar quarter, then an “amortization period” will commence and all funds on deposit in the reserve account will be 
applied to prepay the mortgage loan until such time that the Debt Service Coverage Ratio exceeds 1.15x for a calendar quarter. In 
addition, if any of the Tower Securities are not fully repaid by their respective anticipated repayment dates, the cash flow from the 
towers owned by the Borrowers will be trapped by the trustee for the Tower Securities and applied first to repay the interest, at the 
original interest rates, on the mortgage loan components underlying the Tower Securities, second to fund all reserve accounts and 
operating expenses associated with those towers, third to pay the management fees due to Network Management, fourth to repay 
principal of the Tower Securities and fifth to repay the additional interest discussed above. Furthermore, the advance rents reserve 
requirement states that the Borrowers are required to maintain an advance rents reserve at any time the monthly tenant Debt Service 
Coverage Ratio is equal to or less than 2:1 and for two calendar months after such coverage ratio again exceeds 2:1. The mortgage 
loan agreement, as amended, also includes covenants customary for mortgage loans subject to rated securitizations. Among other 
things, the Borrowers are prohibited from incurring other indebtedness for borrowed money or further encumbering their assets.  

As of December 31, 2017, the Borrowers met the debt service coverage ratio required by the mortgage loan agreement and were 

in compliance with all other covenants as set forth in the agreement.  

2010 Tower Securities  

On April 16, 2010, the Company, through a New York common law trust (the “Trust”), issued $550.0 million of 2010-2C 

Tower Securities (the “2010-2C Tower Securities”) (together the “2010 Tower Securities”). The 2010-2C Tower Securities had an 
annual interest rate of 5.101%. The anticipated repayment date and the final maturity date for the 2010–2C Tower Securities were 
April 11, 2017 and April 9, 2042, respectively. The Company incurred deferred financing fees of $8.1 million in relation to this 
transaction which were being amortized through the anticipated repayment date of each of the 2010 Tower Securities. 

On July 15, 2016, the Company repaid in full the 2010-2C Tower Securities with proceeds from the 2016-1C Tower Securities. 

Additionally, the Company expensed $1.0 million of deferred financing fees related to the redemption of the 2010-2C Tower 
Securities, which are reflected in loss from extinguishment of debt on the Consolidated Statement of Operations. 

2012-1C Tower Securities  

On August 9, 2012, the Company, through the Trust, issued $610.0 million of Secured Tower Revenue Securities Series 2012-

1C (the “2012-1C Tower Securities”), which had an anticipated repayment date of December 11, 2017 and a final maturity date of 
December 9, 2042. The fixed interest rate of the 2012-1C Tower Securities was 2.933% per annum, payable monthly. The Company 
incurred deferred financing fees of $14.9 million in relation to this transaction, which were being amortized through the anticipated 
repayment date of the 2012-1C Tower Securities. 

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On April 17, 2017, the Company repaid in full the 2012-1C Tower Securities with proceeds from the 2017-1C Tower Securities. 

In connection with the prepayment, the Company expensed $2.0 million of net deferred financing fees.  

2013 Tower Securities  

On April 18, 2013, the Company, through the Trust, issued $425.0 million of 2.240% Secured Tower Revenue Securities Series 
2013-1C, which have an anticipated repayment date of April 10, 2018 and a final maturity date of April 9, 2043 (the “2013-1C Tower 
Securities”), $575.0 million of 3.722% Secured Tower Revenue Securities Series 2013-2C, which have an anticipated repayment date 
of April 11, 2023 and a final maturity date of April 9, 2048 (the “2013-2C Tower Securities”), and $330.0 million of 3.598% Secured 
Tower Revenue Securities Series 2013-1D, which have an anticipated repayment date of April 10, 2018 and a final maturity date of 
April 9, 2043 (the “2013-1D Tower Securities”) (collectively the “2013 Tower Securities”). The aggregate $1.33 billion of 2013 
Tower Securities have a blended interest rate of 3.218% per annum, payable monthly. The Company incurred deferred financing fees 
of $25.5 million in relation to this transaction, which are being amortized through the anticipated repayment date of each of the 2013 
Tower Securities. The Company expects to repay the entire aggregate principal amount of the 2013-1C Tower Securities and 2013-1D 
Tower Securities in connection with the issuance of the 2018-1C Tower Securities (as discussed below). 

2014 Tower Securities   

On October 15, 2014, the Company, through the Trust, issued $920.0 million of 2.898% Secured Tower Revenue Securities 

Series 2014-1C, which have an anticipated repayment date of October 8, 2019 and a final maturity date of October 11, 2044 (the 
“2014-1C Tower Securities”) and $620.0 million of 3.869% Secured Tower Revenue Securities Series 2014-2C, which have an 
anticipated repayment date of October 8, 2024 and a final maturity date of October 8, 2049 (the “2014-2C Tower Securities”) 
(collectively the “2014 Tower Securities”). The aggregate $1.54 billion of 2014 Tower Securities have a blended interest rate of 
3.289% per annum, payable monthly. The Company incurred deferred financing fees of $22.5 million in relation to this transaction, 
which are being amortized through the anticipated repayment date of each of the 2014 Tower Securities. 

2015-1C Tower Securities  

On October 14, 2015, the Company, through the Trust, issued $500.0 million of Secured Tower Revenue Securities Series 

2015-1C, which have an anticipated repayment date of October 8, 2020 and a final maturity date of October 10, 2045 (the “2015-1C 
Tower Securities”). The fixed interest rate of the 2015-1C Tower Securities is 3.156% per annum, payable monthly. The Company 
incurred deferred financing fees of $11.2 million in relation to this transaction, which are being amortized through the anticipated 
repayment date of the 2015-1C Tower Securities.  

2016-1C Tower Securities 

On July 7, 2016, the Company, through the Trust, issued $700.0 million of Secured Tower Revenue Securities Series 2016-1C, 
which have an anticipated repayment date of July 9, 2021 and a final maturity date of July 10, 2046 (the “2016-1C Tower Securities”). 
The fixed interest rate of the 2016-1C Tower Securities is 2.877% per annum, payable monthly. Net proceeds from this offering were 
used to prepay the full $550.0 million outstanding on the 2010-2C Tower Securities and for general corporate purposes. The Company 
incurred deferred financing fees of $9.5 million in relation to this transaction, which are being amortized through the anticipated 
repayment date of the 2016-1C Tower Securities. 

2017-1C Tower Securities  

On April 17, 2017, the Company, through the Trust, issued $760.0 million of Secured Tower Revenue Securities Series 2017-

1C, which have an anticipated repayment date of April 11, 2022 and a final maturity date of April 9, 2047 (the “2017-1C Tower 
Securities”). The fixed interest rate on the 2017-1C Tower Securities is 3.168% per annum, payable monthly. Net proceeds from this 
offering were used to prepay the entire $610.0 million aggregate principal amount, as well as accrued and unpaid interest, of the 2012-
1C Tower Securities and for general corporate purposes. The Company incurred deferred financing fees of $10.2 million in relation to 
this transaction, which are being amortized through the anticipated repayment date of the 2017-1C Tower Securities. 

In addition, to satisfy certain risk retention requirements of Regulation RR promulgated under the Securities Exchange Act of 

1934, as amended (the “Exchange Act”), SBA Guarantor, LLC, a wholly owned subsidiary, purchased $40.0 million of Secured 
Tower Revenue Securities Series 2017-1R issued by the Trust, which have an anticipated repayment date of April 11, 2022 and a final 
maturity date of April 9, 2047 (the “2017-1R Tower Securities”). The fixed interest rate on the 2017-1R Tower Securities is 4.459% 
per annum, payable monthly. Principal and interest payments made on the 2017-1R Tower Securities eliminate in consolidation.  

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In connection with the issuance of the 2017-1C Tower Securities, the non-recourse mortgage loan was increased by $800.0 

million (or by a net of $190.0 million after giving effect to prepayment of the loan components relating to the 2012-1C Tower 
Securities). The new loan accrues interest at the same rate as the 2017-1C Tower Securities; however, it is subject to all other material 
terms of the existing mortgage loan, including collateral and interest rate after the anticipated repayment date. 

In connection with the issuance of the 2017-1C Tower Securities, SBA Properties, LLC, SBA Sites, LLC, SBA Structures, 

LLC, SBA Infrastructure, LLC, SBA Monarch Towers III, LLC, SBA 2012 TC Assets PR, LLC, SBA 2012 TC Assets, LLC, SBA 
Towers IV, LLC, SBA Monarch Towers I, LLC, SBA Towers USVI, Inc., SBA Towers VII, LLC, SBA GC Towers, LLC, SBA 
Towers V, LLC, and SBA Towers VI, LLC (collectively, the “Borrowers”), each an indirect subsidiary of SBAC, and Midland Loan 
Services, a division of PNC Bank, National Association, as servicer, on behalf of the Trustee entered into the Second Loan and 
Security Agreement Supplement and Amendment pursuant to which, among other things, (i) the outstanding principal amount of the 
mortgage loan was increased by $760.0 million and (ii) the Borrowers became jointly and severally liable for the aggregate $4.8 
billion borrowed under the mortgage loan corresponding to the 2012-1C Tower Securities, 2013 Tower Securities, 2014 Tower 
Securities, 2015-1C Tower Securities, 2016-1C Tower Securities, and the newly issued 2017-1C Tower Securities. 

2018-1C Tower Securities  

On February 16, 2018, the Company agreed to issue, through a Trust, $640.0 million of Secured Tower Revenue Securities 
Series 2018-1C (the “2018-1C Tower Securities”), which offering is expected to close March 9, 2018. These securities are expected to 
have an anticipated repayment date of March 9, 2023 and a final maturity date of March 9, 2048. The fixed interest rate on the 2018-
1C Tower Securities will be 3.448% per annum, payable monthly, and the proceeds of this offering, in combination with borrowings 
under the Revolving Credit Facility, will be used to repay the entire aggregate principal amount of the 2013-1C Tower Securities 
($425.0 million) and 2013-1D Tower Securities ($330.0 million), as well as accrued and unpaid interest. Management has classified 
$755.0 million of the combined 2013-1C Tower Securities and 2013-1D Tower Securities as a long-term obligation, as the Company 
intends to repay these securities with the net proceeds from the offering of the 2018-1C Tower Securities, in combination with 
borrowings under the Revolving Credit Facility. 

In  addition,  to  satisfy  certain  risk  retention  requirements  of  Regulation  RR  promulgated  under  the  Exchange  Act,  SBA 
Guarantor, LLC, a wholly owned subsidiary, agreed to purchase $33.7 million of Secured Tower Revenue Securities Series 2018-1R to 
be issued by the Trust. These securities are expected to have an anticipated repayment date of March 9, 2023 and a final maturity date 
of March 9, 2048 (the “2018-1R Tower Securities”). The fixed interest rate on the 2018-1R Tower Securities will be 4.949% per annum, 
payable monthly. Principal and interest payments made on the 2018-1R Tower Securities eliminate in consolidation. 

4.0% Convertible Senior Notes due 2014  

On April 24, 2009, the Company issued $500.0 million of its 4.0% Convertible Senior Notes (“4.0% Notes”). Interest was 
payable semi-annually on April 1 and October 1. As of December 31, 2014, the Company settled its conversion obligations and 
associated convertible note hedges. During the year ended December 31, 2015, the Company settled the remaining outstanding 
warrants for $150.9 million, representing approximately 2.1 million underlying shares. 

Senior Notes  

5.75% Senior Notes  

On July 13, 2012, Telecommunications issued $800.0 million of unsecured senior notes due July 15, 2020 (the “5.75% Senior 

Notes”). The 5.75% Senior Notes accrued interest at a rate of 5.75% and were issued at par. The Company incurred deferred financing 
fees of $14.0 million in relation to this transaction, which were being amortized through the maturity date.  

On August 15, 2016, the Company used proceeds from the 2016 Senior Notes to redeem the full $800.0 million in aggregate 

principal amount of the 5.75% Senior Notes and to pay $25.8 million for the call premium and accrued interest on the redemption of 
the notes. Additionally, the Company expensed $7.7 million of deferred financing fees related to the redemption of the notes. The call 
premium and the write-off of deferred financing fees are reflected in loss from extinguishment of debt on the Consolidated Statement 
of Operations. 

SBAC is a holding company with no business operations of its own and its only significant asset is the outstanding capital stock 

of Telecommunications. Telecommunications is 100% owned by SBAC. SBAC had fully and unconditionally guaranteed the Senior 
Notes issued by Telecommunications. 

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5.625% Senior Notes  

On September 28, 2012, the Company issued $500.0 million of unsecured senior notes due October 1, 2019 (the “5.625% Senior 

Notes”). The 5.625% Senior Notes accrued interest at a rate of 5.625% per annum and were issued at par. Interest on the 5.625% 
Senior Notes was due semi-annually on April 1 and October 1 of each year. The Company incurred deferred financing fees of $8.6 
million in relation to this transaction, which were being amortized through the maturity date.  

On October 1, 2016, the Company redeemed the 5.625% Senior Notes in full. On October 3, 2016, the Company repaid $500.0 

million in outstanding principal, $14.1 million related to the call premium on the early redemption of the notes, and $14.1 million in 
accrued interest.  Repayment was made using (1) the proceeds from the 2016 Senior Notes, (2) borrowings under the Revolving Credit 
Facility, and (3) cash on hand. In addition, the Company expensed $4.1 million of deferred financing fees related to the redemption of 
the notes. The call premium and the write-off of deferred financing fees are reflected in loss from extinguishment of debt on the 
Consolidated Statement of Operations. 

2014 Senior Notes 

On July 1, 2014, the Company issued $750.0 million of unsecured senior notes due July 15, 2022 (the “2014 Senior Notes”). 
The 2014 Senior Notes accrue interest at a rate of 4.875% per annum and were issued at 99.178% of par value. Interest on the 2014 
Senior Notes is due semi-annually on January 15 and July 15 of each year. The Company incurred deferred financing fees of $11.6 
million in relation to this transaction, which are being amortized through the maturity date.  

The 2014 Senior Notes are subject to redemption in whole or in part on or after July 15, 2017 at the redemption prices set forth 

in the indenture agreement plus accrued and unpaid interest. The Company may redeem the 2014 Senior Notes during the twelve-
month period beginning on the following dates at the following redemption prices:  July 15, 2017 at 103.656%, July 15, 2018 at 
102.438%, July 15, 2019 at 101.219%, or July 15, 2020 until maturity at 100.000%, of the principal amount of the 2014 Senior Notes 
to be redeemed on the redemption date plus accrued and unpaid interest. 

2016 Senior Notes 

On August 15, 2016, the Company issued $1.1 billion of unsecured senior notes due September 1, 2024 (the “2016 Senior 
Notes”). The 2016 Senior Notes accrue interest at a rate of 4.875% per annum and were issued at 99.178% of par value. Interest on the 
2016 Senior Notes is due semi-annually on March 1 and September 1 of each year, beginning on March 1, 2017. The Company 
incurred deferred financing fees of $12.8 million in relation to this transaction, which are being amortized through the maturity date. 
Net proceeds from this offering and cash on hand were used to redeem $800.0 million, the aggregate principal amount outstanding, of 
Telecommunications’ 5.75% Senior Notes and $250.0 million of the Company’s 5.625% Senior Notes and pay the associated call 
premiums. 

The 2016 Senior Notes are subject to redemption in whole or in part on or after September 1, 2019 at the redemption prices set 
forth in the indenture agreement plus accrued and unpaid interest. Prior to September 1, 2019, the Company may at its option redeem 
up to 35% of the aggregate principal amount of the 2016 Senior Notes originally issued at a redemption price of 104.875% of the 
principal amount of the 2016 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest with the net 
proceeds of certain equity offerings. The Company may redeem the 2016 Senior Notes during the twelve-month period beginning on 
the following dates at the following redemption prices:  September 1, 2019 at 103.656%, September 1, 2020 at 102.438%, September 
1, 2021 at 101.219%, or September 1, 2022 until maturity at 100.000%, of the principal amount of the 2016 Senior Notes to be 
redeemed on the redemption date plus accrued and unpaid interest. 

2017 Senior Notes 

On October 13, 2017, the Company issued $750.0 million of unsecured senior notes due October 1, 2022 (the “2017 Senior 
Notes”). The 2017 Senior Notes accrue interest at a rate of 4.0% per annum. Interest on the 2017 Senior Notes is due semi-annually on 
April 1 and October 1 of each year, beginning on April 1, 2018. The Company incurred deferred financing fees of $8.9 million in 
relation to this transaction, which are being amortized through the maturity date. Net proceeds from this offering were used to repay 
$460.0 million outstanding under the Revolving Credit Facility and for general corporate purposes. 

The 2017 Senior Notes are subject to redemption in whole or in part on or after October 1, 2019 at the redemption prices set 
forth in the indenture agreement plus accrued and unpaid interest. Prior to October 1, 2020, the Company may, at the Company’s 
option, redeem up to 35% of the aggregate principal amount of the 2017 Senior Notes originally issued at a redemption price of 
104.000% of the principal amount of the 2017 Senior Notes to be redeemed on the redemption date plus accrued and unpaid interest 

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with the net proceeds of certain equity offerings. The Company may redeem the 2017 Senior Notes  during the twelve-month period 
beginning on the following dates at the following redemption prices:  October 1, 2019 at 102.000%,  October 1, 2020 at 101.000%, or 
October 1, 2021 until maturity at 100.000%, of the principal amount of the 2017 Senior Notes to be redeemed on the redemption date 
plus accrued and unpaid interest. 

Indentures Governing Senior Notes 

The Indentures governing the Senior Notes contain customary covenants, subject to a number of exceptions and qualifications, 

including restrictions on the ability of SBAC and Telecommunications to (1) incur additional indebtedness unless the Consolidated 
Indebtedness to Annualized Consolidated Adjusted EBITDA Ratio (as defined in the Indenture), pro forma for the additional 
indebtedness does not exceed, with respect to any fiscal quarter, 9.5x for SBAC, (2) merge, consolidate or sell assets, (3) make 
restricted payments, including dividends or other distributions, (4) enter into transactions with affiliates, and (5) enter into sale and 
leaseback transactions and restrictions on the ability of the Restricted Subsidiaries of SBAC (as defined in the Indentures) to incur 
liens securing indebtedness. 

13.  SHAREHOLDERS’ EQUITY  

Common Stock Equivalents  

The Company has potential common stock equivalents (see Note 14) related to its outstanding stock options and restricted 
stock units These potential common stock equivalents were considered in the Company’s diluted earnings per share calculation (see 
Note 11).  

Stock Repurchases  

On April 27, 2011, the Company’s Board of Directors authorized a stock repurchase plan. This plan authorized the Company to 

purchase, from time to time, up to $300.0 million of the Company’s outstanding Class A common stock through open market 
repurchases in compliance with Rule 10b-18 under the Exchange Act, and/or in privately negotiated transactions at management’s 
discretion based on market and business conditions, applicable legal requirements and other factors. During the year ended December 
31, 2015, the Company repurchased 1.3 million shares of its Class A common stock at an average price of $114.96 with the remaining 
$150.0 million authorized under the $300.0 million stock repurchase plan, completing this plan. Shares repurchased were retired. 

On June 4, 2015, the Company’s Board of Directors authorized a new stock repurchase plan. This plan authorized the Company 

to purchase, from time to time, up to $1.0 billion of the Company’s outstanding Class A common stock through open market 
repurchases in compliance with Rule 10b-18 under the Exchange Act, and/or in privately negotiated transactions at management’s 
discretion based on market and business conditions, applicable legal requirements and other factors. During the year ended December 
31, 2015, the Company repurchased an additional 2.7 million shares of its Class A common stock under this stock repurchase plan for 
$300.0 million at a weighted average price per share of $112.04. During the year ended December 31, 2016, the Company 
repurchased an additional 5.3 million shares of its Class A common stock under this stock repurchase program for $545.7 million at a 
weighted average price per share of $102.14. As of December 31, 2016, the Company had a remaining authorization to repurchase 
$154.4 million of Class A common stock under the $1.0 billion stock repurchase plan dated June 4, 2015. During the year ended 
December 31, 2017, the Company repurchased 42,163 shares of its Class A common stock under the stock repurchase plan dated June 
4, 2015 for $4.4 million at a weighted average price per share of $104.81. Shares repurchased were retired. 

On January 12, 2017, the Company’s Board of Directors authorized a new stock repurchase plan, replacing the plan authorized 
on June 4, 2015 which had a remaining authorization of $150.0 million. This plan authorized the Company to purchase, from time to 
time, up to $1.0 billion of the Company’s outstanding Class A common stock through open market repurchases in compliance with 
Rule 10b-18 under the Exchange Act, and/or in privately negotiated transactions at management’s discretion based on market and 
business conditions, applicable legal requirements and other factors. During the year ended December 31, 2017, the Company 
repurchased 5.8 million shares of its Class A common stock under this plan for $850.0 million, at an average price per share of 
$146.17. Shares repurchased were retired. 

On February 16, 2018, the Company’s Board of Directors authorized a new $1.0 billion stock repurchase plan, replacing the 

prior plan authorized on January 12, 2017 which had a remaining authorization of $150.0 million. This new plan authorizes the 
Company to purchase, from time to time, up to $1.0 billion of our outstanding Class A common stock through open market 
repurchases in compliance with Rule 10b-18 under the Exchange Act and/or in privately negotiated transactions at management’s 
discretion based on market and business conditions, applicable legal requirements and other factors. Shares repurchased will be 
retired. The new plan has no time deadline and will continue until otherwise modified or terminated by the Company’s Board of 

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Directors at any time in its sole discretion. As of the date of this filing, the Company had the full $1.0 billion authorization remaining 
under the new plan. 

Registration of Additional Shares  

On May 20, 2010, the Company filed a registration statement on Form S-8 with the Securities and Exchange Commission 
registering 15.0 million shares of the Company’s Class A common stock issuable under the 2010 Performance and Equity Incentive 
Plan (see Note 14).  

The Company filed a shelf registration statement on Form S-4 with the Securities and Exchange Commission registering 
4.0 million shares of its Class A common stock in 2007. These shares may be issued in connection with acquisitions of wireless 
communication towers or antenna sites and related assets or companies that own wireless communication towers, antenna sites, or 
related assets. During the years ended December 31, 2016 and 2015, the Company did not issue any shares of its Class A common 
stock pursuant to this registration statement in connection with acquisitions. During the year ended December 31, 2017, the company 
issued 487,963 shares of Class A common stock under this registration statement. As of December 31, 2017, the Company had 
approximately 1.2 million shares of Class A common stock remaining under this registration statement.  

On March 3, 2015, the Company filed with the Commission an automatic shelf registration statement for well-known seasoned 

issuers on Form S-3ASR. This registration statement enables the Company to issue shares of its Class A common stock, preferred 
stock or debt securities either separately or represented by warrants, or depositary shares as well as units that include any of these 
securities. Under the rules governing automatic shelf registration statements, the Company will file a prospectus supplement and 
advise the Commission of the amount and type of securities each time it issues securities under this registration statement. For the 
years ended December 31, 2017, 2016, and 2015, the Company did not issue any securities under this automatic shelf registration 
statement. 

14.  STOCK-BASED COMPENSATION  

The Company has two equity participation plans (the 2001 Equity Participation Plan and the 2010 Performance and Equity 

Incentive Plan, the “2010 Plan”) whereby options (both non-qualified and incentive stock options), restricted stock units, stock 
appreciation rights, and other equity and performance based instruments may be granted to directors, employees, and consultants. The 
options and restricted stock units generally vest from the date of grant on a straight-line basis over the vesting term and generally have 
a seven-year or a ten-year contractual life.  

Upon the adoption of the 2010 Plan by the Company’s shareholders on May 6, 2010, the 2001 Equity Participation Plan was 
terminated and the Company is no longer eligible to issue shares pursuant to that plan. The 2010 Plan provides for the issuance of a 
maximum of 15.0 million shares of the Company’s Class A common stock, of which 7.5 million shares remain available for future 
issuance as of December 31, 2017. However, the aggregate number of shares that may be issued pursuant to restricted stock awards, 
restricted stock unit awards, stock bonus awards, performance awards, other stock-based awards, or other awards granted under the 
2010 Plan will not exceed 7.5 million shares, of which 6.6 million shares remain available for future issuance as of December 31, 
2017. 

Stock Options  

The Company records compensation expense for employee stock options based on the estimated fair value of the options on the 

date of grant using the Black-Scholes option-pricing model with the assumptions included in the table below. The Company uses a 
combination of historical data and historical volatility to establish the expected volatility, as well as to estimate the expected option 
life. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. The 
following assumptions were used to estimate the fair value of options granted using the Black-Scholes option-pricing model:  

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Risk free interest rate 

Dividend yield 

Expected volatility 

Expected lives 

For the year ended December 31,  

2017 

2016 

2015 

1.70% - 1.97% 

1.11% - 1.43% 

1.21% - 1.46% 

0.0% 

20.0% 

0.0% 

20.0% 

0.0% 

20.0% 

4.6 years 

4.7 years 

4.6 years 

The following table summarizes the Company’s activities with respect to its stock option plans for the years ended December 

31, 2017, 2016 and 2015 as follows (dollars and number of shares in thousands, except for per share data): 

Weighted- 

Average 

Weighted- 

Average 

Remaining 

Number 

of Shares 

Exercise Price 

Contractual  

Aggregate 

Per Share 

Life (in years) 

Intrinsic Value 

Outstanding at December 31, 2014 

Granted 

Exercised 

Canceled 

Outstanding at December 31, 2015 

Granted 

Exercised 

Canceled 

Outstanding at December 31, 2016 

Granted 

Exercised 

Canceled 

Outstanding at December 31, 2017 

Exercisable at December 31, 2017 

Unvested at December 31, 2017 

 3,276  

$ 

 1,076 

  $ 

 (495)  

 (63)  

 3,794  

$ 

$ 

$ 

 1,357 

  $ 

 (603)  

 (101)  

 4,447  

$ 

$ 

$ 

 1,171 

  $ 

 (709)  

 (67)  

 4,842  

 1,982  

 2,860  

$ 

$ 

$ 

$ 

$ 

66.85  

124.24  

51.58  

93.74  

84.66  

96.64  

46.03  

105.37  

93.09  

115.41  

80.73  

105.81  

100.12  

87.42  

108.93  

4.3  

3.0  

5.3  

$ 

$ 

$ 

 306,100 

 150,501 

 155,599 

The weighted-average per share fair value of options granted during the years ended December 31, 2017, 2016 and 2015 was 

$23.88, $19.19, and $24.75, respectively.  

The total intrinsic value for options exercised during the years ended December 31, 2017, 2016 and 2015 was $37.2 million, 

$36.8 million and $33.0 million, respectively. Cash received from option exercises under all plans for the years ended December 31, 
2017, 2016 and 2015 was approximately $56.5 million, $27.4 million, and $25.4 million, respectively. No tax benefit was realized for 
the tax deductions from option exercises under all plans for the years ended December 31, 2017, 2016 and 2015, respectively.  

The aggregate intrinsic value for stock options in the preceding table represents the total intrinsic value based on the Company’s 
closing stock price of $163.36 as of December 31, 2017. The amount represents the total intrinsic value that would have been received 
by the holders of the stock-based awards had these awards been exercised and sold as of that date.  

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Additional information regarding options outstanding and exercisable at December 31, 2017 is as follows:  

Options Outstanding 

Weighted Average 

Remaining 

Weighted 

 Average 

Options Exercisable 

Weighted 

 Average 

Range 

Outstanding 

Contractual Life 

Exercise Price 

Exercisable 

Exercise Price 

$0.00 - $45.00 

$45.01 - $90.00 

$90.01 - $115.00 

$115.01 - $145.00 

(in thousands) 

 99  

 731  

 1,973  

 2,039  

 4,842  

(in years) 
0.4 

1.9 

4.4 

5.3 

(in thousands) 

  $ 

  $ 

40.39  

64.76  

96.39  

 99   $ 

 730   $ 

 760  

40.39 

64.71 

96.16 

  $ 

119.32  

 393   $ 

124.48 

 1,982  

The following table summarizes the activity of options outstanding that had not yet vested:  

Unvested as of December 31, 2016 

Shares granted 

Vesting during period 

Forfeited 

Unvested as of December 31, 2017 

Weighted- 

Average 

Fair Value 

Per Share 

Number 

of Shares 

(in thousands) 

 2,814  

 1,171  

 (1,058)  

 (67)  

 2,860  

$ 

$ 

$ 

$ 

$ 

 20.62 

 23.88 

 20.25 

 21.23 

 22.08 

As of December 31, 2017, the total unrecognized compensation expense related to unvested stock options outstanding under the 

Plans is $39.8 million. That cost is expected to be recognized over a weighted average period of 2.5 years.  

The total fair value of options vested during 2017, 2016, and 2015 was $21.4 million, $18.5 million, and $15.1 million, 

respectively.  

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Restricted Stock Units  

The following table summarizes the Company’s restricted stock unit activity for the year ended December 31, 2017:  

Outstanding at December 31, 2016 

Granted 

Vested 

Forfeited/canceled 

Outstanding at December 31, 2017 

Weighted- 

Average 

Grant Date 

Number of 

Fair Value per 

Shares 

Share 

(in thousands) 

 291  

 171  

 (122)  

 (12)  

 328  

$ 

$ 

$ 

$ 

$ 

 101.74 

 116.52 

 98.75 

 111.67 

 110.20 

As of December 31, 2017, total unrecognized compensation expense related to unvested restricted stock units granted under the 

2010 Plan was $24.4 million and is expected to be recognized over a weighted-average period of 2.6 years.  

Employee Stock Purchase Plan  

In 2008, the Board of Directors of the Company adopted the 2008 Employee Stock Purchase Plan (“2008 Purchase Plan”) which 

reserved 500,000 shares of Class A common stock for purchase. The 2008 Purchase Plan permits eligible employee participants to 
purchase Class A common stock at a price per share which is equal to 85% of the fair market value of Class A common stock on the 
last day of an offering period.  

For the year ended December 31, 2017, 28,232 shares of Class A common stock were issued under the 2008 Purchase Plan, 
which resulted in cash proceeds to the Company of approximately $3.3 million, compared to the year ended December 31, 2016 when 
31,165 shares of Class A common stock were issued under the 2008 Purchase Plan which resulted in cash proceeds to the Company of 
$2.7 million. At December 31, 2017, 244,942 shares remained available for issuance under the 2008 Purchase Plan. In addition, the 
Company recorded $0.6 million, $0.5 million, and $0.5 million of non-cash compensation expense relating to the shares issued under 
the 2008 Purchase Plans for each of the years ended December 31, 2017, 2016, and 2015.  

Non-Cash Compensation Expense  

The table below reflects a break out by category of the non-cash compensation expense amounts recognized on the Company’s 

Statements of Operations for the years ended December 31, 2017, 2016, and 2015, respectively:  

Cost of revenues 

Selling, general and administrative 

Total cost of non-cash compensation included 

in loss before provision for income taxes 

Amount of income tax recognized in earnings 

 For the year ended December 31,  

2017 

2016 

2015 

(in thousands) 

$ 

 1,013   $ 

 418   $ 

 37,236  

 32,497  

 38,249  

 —  

 32,915  

 —  

 405 

 28,342 

 28,747 

 — 

Amount charged against loss 

$ 

 38,249   $ 

 32,915   $ 

 28,747 

In addition, the Company capitalized $0.6 million, $0.5 million and $0.5 million of non-cash compensation for the years ended 

December 31, 2017, 2016 and 2015, respectively, to fixed assets.  

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15.     INCOME TAXES 

As discussed in Note 2, the Company began operating in compliance with REIT requirements for federal income tax purposes 

effective January 1, 2016.  As a REIT, the Company must distribute at least 90 percent of its taxable income (including dividends paid 
to it by its TRSs) except to the extent offset by NOLs.  In addition, the Company must meet a number of other organizational and 
operational requirements. It is management's intention to adhere to these requirements and maintain the Company's REIT status. Most 
states where SBA operates conform to the federal rules recognizing REITs. Certain subsidiaries have made an election with the 
Company to be treated as TRSs in conjunction with the Company's REIT election; the TRS elections permit SBA to engage in certain 
business activities in which the REIT may not engage directly.  A TRS is subject to federal and state income taxes on the income from 
these activities. A provision for taxes of the TRSs and of foreign branches of the REIT are included in its consolidated financial 
statements. 

Income (loss) before provision for income taxes by geographic area is as follows:  

Domestic 

Foreign 

Total 

 For the year ended December 31,  

2017 

2016 

2015 

(in thousands) 

$ 

$ 

 73,405   $ 

 (28,671)   $ 

 (22,698) 

 43,486  

 115,974  

 (143,897) 

 116,891   $ 

 87,303   $ 

 (166,595) 

The provision for income taxes consists of the following components:  

 For the year ended December 31,  

2017 

2016 

2015 

(in thousands) 

Current provision: 

State 

Foreign 

Total current 

Deferred provision (benefit) for taxes: 

Federal 

State 

Foreign 

Change in valuation allowance 

Total deferred 

$ 

 5,513   $ 

 1,535   $ 

 11,681  

 17,194  

 8,121  

 9,656  

 18,736 

 (241) 

 9,155 

 (31,607) 

 (3,957) 

 170,177 

 22,992 

 30,425 

 (222,185) 

 1,409 

Total provision for income taxes 

$ 

 13,237  $ 

 11,065  $ 

 2,752 

 6,314 

 9,066 

 (3,023) 

 (3,106) 

 (40,636) 

 46,760 

 (5) 

 9,061 

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A reconciliation of the provision for income taxes at the statutory U.S. Federal tax rate (35%) and the effective income tax rate 

is as follows:  

Statutory federal expense (benefit) 

Foreign tax rate differential 

State and local tax expense (benefit) 

REIT adjustment 

Permanent differences 

Tax Act impact on deferred taxes 

Foreign exchange rate changes 

Other 

Valuation allowance 

For the year ended December 31, 

2017 

2016 

2015 

$ 

 40,912   $ 

 30,555   $ 

 (58,307) 

(in thousands) 

 3,745  

 5,415  

 (34,346)  

 (1,365)  

 31,547  

 (55)  

 (1,009)  

 (31,607)  

 1,083  

 3,941  

 205,317  

 (3,577)  

 —  

 (5,822)  

 1,753  

 (222,185)  

 3,534 

 (230) 

 — 

 4,892 

 — 

 9,212 

 3,200 

 46,760 

 9,061 

Provision for income taxes 

$ 

 13,237   $ 

 11,065   $ 

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The components of the net deferred income tax asset (liability) accounts are as follows:   

Noncurrent deferred tax assets: 

Net operating losses 

Property, equipment, and intangible basis differences 

Accrued liabilities 

Non-cash compensation 

Deferred revenue 

Allowance for doubtful accounts 

Currency translation 

Other 

Valuation allowance 

Total noncurrent deferred tax assets, net (1) 

Noncurrent deferred tax liabilities: 

Property, equipment, and intangible basis differences 

Straight-line rents 

Deferred lease costs 

Other 

As of December 31, 

2017 

2016 

(in thousands) 

  $ 

 65,257   $ 

 3,038  

 11,933  

 7,500  

 2,110  

 5,978  

 34,895  

 2,698  

 (38,802)  

 94,607  

 (98,589)  

 (22,740)  

 (2,242)  

 (136)  

 50,143 

 2,583 

 12,264 

 19,908 

 3,904 

 6,187 

 33,088 

 1,032 

 (70,233) 

 58,876 

 (65,459) 

 (18,081) 

 (1,087) 

 (922) 

Total noncurrent deferred tax liabilities, net (1) 

  $ 

 (29,100)   $ 

 (26,673) 

(1)  Of these amounts, $1,670 and $30,770 are included in Other assets and Other long-term liabilities, respectively on the 

accompanying Consolidated Balance Sheets as of December 31, 2017. As of December 31, 2016, $774 and $27,447 are 
included in Other assets and Other long-term liabilities on the accompanying Consolidated Balance Sheet.  

A deferred tax asset is reduced by a valuation allowance if based on the weight of all available evidence, including both positive 
and negative evidence, it is more likely than not (a likelihood of more than 50%) that the value of such assets will not be realized. The 
valuation allowance should be sufficient to reduce the deferred tax asset to the amount that is more likely than not to be realized. The 
realization of deferred tax assets, including carryforwards and deductible temporary differences, depends upon the existence of 
sufficient taxable income of the same character during the carryback or carryforward period. All sources of taxable income available 
to realize the deferred tax asset, including the future reversal of existing temporary differences, future taxable income exclusive of 
reversing temporary differences and carryforwards, taxable income in carryback years and tax-planning strategies, should be 
considered. 

The Company has recorded a valuation allowance for the majority of its deferred tax assets as management believes that it is not 

“more-likely-than-not” that the Company will generate sufficient taxable income in future periods to recognize the assets. Valuation 
allowances of $38.8 million and $70.2 million were being carried to offset net deferred income tax assets as of December 31, 2017 
and 2016, respectively. The net change in the valuation allowance for the years ended December 31, 2017 and 2016 was $31.4 million 
and $222.6 million, respectively.  

The Company has available at December 31, 2017, a federal NOL carry-forward of approximately $1.1 billion. These NOL 
carry-forwards will expire between 2022 and 2036. As of December 31, 2017, $956.7 million of the federal NOLs are attributes of the 
REIT. The Company may use these NOLs to offset its REIT taxable income, and thus any required distributions to shareholders may 
be reduced or eliminated until such time as the NOLs have been fully utilized.  The Internal Revenue Code places limitations upon the 
future availability of NOLs based upon changes in the equity of the Company. If these occur, the ability of the Company to offset 
future income with existing NOLs may be limited. In addition, the Company has available at December 31, 2017, a foreign NOL 

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carry-forward of $79.5 million and a net state operating tax loss carry-forward of approximately $456.1 million. These net operating 
tax loss carry-forwards begin to expire in 2018.   

The U.S. tax losses generated in tax years 1999 through 2014 remain subject to adjustment, and tax years 2014 through 2017 are 

open to examination by the major jurisdictions in which the Company operates. 

On December 22, 2017, the U.S. government enacted comprehensive tax legislation in the form of the Tax Cuts and Jobs Act 
(the “Tax Act”) that significantly revises the U.S. tax code effective January 1, 2018 by, among other things, lowering the corporate 
income tax rate from a top marginal rate of 35% to a flat 21%, imposing a mandatory one-time deemed repatriation of foreign 
earnings (commonly referred to as the “transition tax”), limiting deductibility of interest expense and certain executive compensation 
and implementing a territorial tax system. The full impact of this change in tax law is provisional and subject to further analysis. 

The Company does not expect to remit earnings from its foreign subsidiaries. Undistributed earnings of the Company’s foreign 

subsidiaries amounted to approximately $102.2 million at December 31, 2017. Those earnings are considered to be permanently 
reinvested and the Company could be subject to withholding taxes payable to various foreign countries. The Tax Act passed 
December 22, 2017 caused the Company to record a one-time income inclusion of unremitted earnings in the amount of $52.4 million. 
The Company's provisional calculation of its remaining outside basis difference is not considered material. Determining the amount of 
unrecognized deferred tax liability related to any additional outside basis difference in these entities (i.e., basis difference other than 
those subject to the one-time transition tax) is not practicable due to the complexities of the hypothetical calculation in determining 
residual taxes on undistributed earnings, including the availability of foreign tax credits, applicability of any additional local 
withholding tax, and other indirect tax consequence that may arise due to the distribution of these earnings. 

The global intangible low-taxed income (“GILTI”) provisions of the Tax Act impose a tax on the income of certain foreign 
subsidiaries in excess of a specified return on tangible assets used by the foreign companies.  FASB Staff Q&A, Topic 740, No. 5, 
Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize 
deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to 
GILTI in the year the tax is incurred. Given the complexity of the GILTI provisions, the Company is still evaluating the effects of the 
GILTI provisions and has not yet determined the new accounting policy. At December 31, 2017, the Company is still evaluating the 
GILTI provisions and the analysis of future taxable income that is subject to GILTI, the Company is still unable to make a reasonable 
estimate and has not reflected any adjustments related to GILTI in the Company's consolidated financial statements. 

16.  COMMITMENTS AND CONTINGENCIES  

Leases  

The Company is obligated under various non-cancelable operating leases for land, office space, equipment and site leases that 

expire at various times through December 2152. In addition, the Company is obligated under various non-cancelable capital leases for 
vehicles that expire at various times through September 2021. 

The annual minimum lease payments under non-cancelable operating (primarily ground or land leases) and capital leases for the 

next five years as of December 31, 2017 are as follows (in thousands):  

For the year ended December 31,  

Capital Leases 

Operating Leases 

2018 

2019 

2020 

2021 

2022 

Total minimum lease payments 

Less: amount representing interest 

Present value of future payments 

Less: current obligations 

Long-term obligations 

 220,190 

 222,489 

 224,148 

 226,528 

 228,093 

$ 

 1,199  

$ 

 654  

 226  

 31  

 —  

 2,110  

 (113)  

 1,997  

 (1,147)  

 850  

$ 

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Future minimum rental payments under noncancelable ground leases include payments for certain renewal periods at the 
Company’s option because failure to renew could result in a loss of the applicable tower and related revenue from tenant leases, 
thereby making it reasonably assured that the Company will renew the lease. The majority of operating leases provide for renewal at 
varying escalations. Fixed rate escalations have been included in the table disclosed above.  

Rent expense for operating leases was $266.4 million, $253.7 million and $239.8 million for the years ended December 31, 

2017, 2016 and 2015, respectively. In addition, certain of the Company’s leases include contingent rent provisions which provide for 
the lessor to receive additional rent upon the attainment of certain tower operating results and/or lease-up. Contingent rent expense for 
the years ended December 31, 2017, 2016 and 2015 was $26.6 million, $25.0 million and $24.4 million, respectively.  

Tenant Leases  

The annual minimum tower lease income to be received for tower space and antenna rental under non-cancelable operating 

leases for the next five years as of December 31, 2017 are as follows:  

For the year ended December 31,  

(in thousands) 

2018 

2019 

2020 

2021 

2022 

$ 

 1,437,107 

 1,267,458 

 1,060,017 

 803,351 

 536,685 

The Company’s tenant leases provide for annual escalations and multiple renewal periods, at the tenant’s option. The tenant 
rental payments disclosed in the table above do not assume exercise of any tenant renewal options, however, fixed rate escalations 
have been included for the current term.  

Litigation  

The Company is involved in various claims, lawsuits and proceedings arising in the ordinary course of business. While there are 

uncertainties inherent in the ultimate outcome of such matters and it is impossible to presently determine the ultimate costs that may 
be incurred, management believes the resolution of such uncertainties and the incurrence of such costs will not have a material adverse 
effect on the Company’s consolidated financial position, results of operations or liquidity.  

Contingent Purchase Obligations  

From time to time, the Company agrees to pay additional consideration (or earnouts) for acquisitions if the towers or businesses 

that are acquired meet or exceed certain performance targets in the one to three years after they have been acquired. Please refer to 
Note 3.  

17.  DEFINED CONTRIBUTION PLAN  

The Company has a defined contribution profit sharing plan under Section 401(k) of the Internal Revenue Code that provides 
for voluntary employee contributions up to the limitations set forth in Section 402(g) of the Internal Revenue Code. Employees have 
the opportunity to participate following completion of three months of employment and must be 21 years of age. Employer matching 
begins immediately upon the employee’s participation in the plan.  

The Company makes a discretionary matching contribution of 75% of an employee’s contributions up to a maximum of $4,000 

annually. Company matching contributions were approximately $2.0 million, $2.0 million and $2.1 million for the years ended 
December 31, 2017, 2016 and 2015, respectively.  

F-40 

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18.  SEGMENT DATA  

The Company operates principally in two business segments: site leasing and site development. The Company’s site leasing 
business includes two reportable segments, domestic site leasing and international site leasing. The Company’s business segments are 
strategic business units that offer different services. They are managed separately based on the fundamental differences in their 
operations. The site leasing segment includes results of the managed and sublease businesses. The site development segment includes 
the results of both consulting and construction related activities. The Company’s Chief Operating Decision Maker utilizes segment 
operating profit and operating income as his two measures of segment profit in assessing performance and allocating resources at the 
reportable segment level. 

Revenues, cost of revenues (exclusive of depreciation, accretion and amortization), capital expenditures (including assets 
acquired through the issuance of shares of the Company’s Class A common stock) and identifiable assets pertaining to the segments in 
which the Company continues to operate are presented below.  

F-41 

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For the year ended December 31, 2017 

(in thousands) 

Domestic Site 

Int'l Site 

Site 

  Not Identified 

Leasing 

Leasing 

  Development 

by Segment 

Total 

Revenues 

Cost of revenues (2) 

Operating profit 

Selling, general, and administrative 

Acquisition related adjustments and expenses 

Asset impairment and decommission costs 

Depreciation, amortization and accretion 

Operating income (loss) 

Other expense (principally interest expense 

and other expense) 

Income before provision for income taxes 

Cash capital expenditures (3) 

For the year ended December 31, 2016 

Revenues 

Cost of revenues (2) 

Operating profit 

Selling, general, and administrative (4) 

Acquisition related adjustments and expenses 

Asset impairment and decommission costs 

Depreciation, amortization and accretion 

Operating income (loss) 

Other expense (principally interest expense 

and other expense) 

Income before provision for income taxes 

Cash capital expenditures (3) 

For the year ended December 31, 2015 

Revenues 

Cost of revenues (2) 

Operating profit 

Selling, general, and administrative 

Acquisition related adjustments and expenses 

Asset impairment and decommission costs 

Depreciation, amortization and accretion 

Operating income (loss) 

Other expense (principally interest expense 

and other expense) 

Loss before provision for income taxes 

  $ 

 1,308,389   $ 

 314,784   $ 

 104,501   $ 

 —  $ 

 1,727,674 

 260,826  

 1,047,563  

 67,263  

 8,171  

 29,523  

 498,842  

 443,764  

 98,701  

 216,083  

 24,320  

 4,196  

 6,994  

 135,155  

 45,418  

 86,785  

 17,716  

 15,433  

 — 

 180  

 2,580  

 (477) 

 — 

 — 

 446,312 

 1,281,362 

 23,681  

 130,697 

 — 

 — 

 6,523  

 (30,204) 

 12,367 

 36,697 

 643,100 

 458,501 

 (341,610) 

 (341,610)

 116,891 

 225,074  

 358,691  

 1,221  

 3,859  

 588,845 

  $ 

 1,273,866   $ 

 264,204   $ 

 95,055   $ 

 —  $ 

 1,633,125 

 260,941  

 1,012,925  

 72,701  

 6,233  

 26,073  

 509,108  

 398,810  

 81,274  

 182,930  

 35,897  

 6,907  

 1,824  

 119,466  

 18,836  

 78,682  

 16,373  

 13,039  

 — 

 — 

 3,402  

 (68) 

 — 

 — 

 420,897 

 1,212,228 

 21,712  

 143,349 

 — 

 2,345  

 6,213  

 (30,270) 

 13,140 

 30,242 

 638,189 

 387,308 

 (300,005) 

 (300,005)

 87,303 

 310,256  

 102,282  

 1,955  

 3,710  

 418,203 

  $ 

 1,236,758   $ 

 243,876   $ 

 157,840   $ 

 —  $ 

 1,638,474 

 252,493  

 984,265  

 67,413  

 9,975  

 93,977  

 534,436  

 278,464  

 72,162  

 171,714  

 16,196  

 1,889  

 806  

 118,886  

 33,937  

 119,744  

 38,096  

 12,247  

 — 

 — 

 3,662  

 22,187  

 — 

 — 

 444,399 

 1,194,075 

 19,095  

 114,951 

 — 

 — 

 3,037  

 (22,132) 

 (479,051) 

 11,864 

 94,783 

 660,021 

 312,456 

 (479,051)

 (166,595)

Cash capital expenditures (3) 

 709,337  

 94,693  

 3,495  

 13,339  

 820,864 

F-42 

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Domestic Site 

Int'l Site 

Site 

  Not Identified 

Leasing 

Leasing 

  Development 

  by Segment (1) 

Total 

Assets  

As of December 31, 2017 

As of December 31, 2016 

  $ 

 5,171,190   $ 

 2,028,479   $ 

 49,487   $ 

 71,049   $ 

 7,320,205 

  $ 

 5,396,394   $ 

 1,839,703   $ 

 43,769   $ 

 81,079   $ 

 7,360,945 

(in thousands) 

(1)  Assets not identified by segment consist primarily of general corporate assets.  
(2)  Excludes depreciation, amortization, and accretion.  
(3) 
(4)  

Includes cash paid for capital expenditures and acquisitions and vehicle capital lease additions.  
International site leasing includes the impact of the $16,498 Oi reserve for the year ended December 31, 2016. 

Other than Brazil, no foreign country represented a material amount of our total revenues in any of the periods presented. Site 

leasing revenue in Brazil was $217.4 million for 2017, $178.3 million for 2016, and $169.6 million for 2015. Total long-lived assets in 
Brazil was $1,278.9 million as of December 31, 2017, $1,096.4 million as of December 31, 2016, and $923.6 million as of December 
31, 2015.   

F-43 

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19.  QUARTERLY FINANCIAL DATA (unaudited)  

Revenues 

Operating income 

Depreciation, accretion, and amortization 

Loss from extinguishment of debt, net 

Net income 

Quarter Ended 

  December 31, 

  September 30, 

June 30, 

  March 31, 

2017 

2017 

2017 

2017 

(in thousands, except per share amounts) 

 $ 

 443,073  $ 

 433,945  $ 

 427,294  $ 

 423,362 

 119,081   

 117,011   

 114,590   

 107,819 

 (162,643)   

 (161,907)   

 (159,520)   

 (159,030) 

 —   

 —   

 (1,961)   

 — 

 7,660   

 49,161   

 9,233   

 37,600 

Net income per common share - basic (1) 

Net income per common share - diluted 

 $ 

 0.07  $ 

 0.06   

 0.41  $ 

 0.08  $ 

 0.41   

 0.08   

 0.31 

 0.31 

Revenues 

Operating income 

Depreciation, accretion, and amortization 

Loss from extinguishment of debt, net 

Net income (loss) 

Quarter Ended 

  December 31, 

  September 30, 

June 30, 

  March 31, 

2016 

2016 

2016 

2016 

(in thousands, except per share amounts) 

 $ 

 416,505  $ 

 411,319  $ 

 405,532  $ 

 399,769 

 107,430   

 108,210   

 74,066   

 97,602 

 (158,554)   

 (160,111)   

 (159,723)   

 (159,801) 

 (18,189)   

 (34,512)   

 —   

 — 

 5,256   

 (15,370)   

 32,711   

 53,641 

Net income per common share - basic 

Net income per common share - diluted 

 $ 

 0.04  $ 

 (0.12)  $ 

 0.26  $ 

 0.04   

 (0.12)   

 0.26   

 0.43 

 0.43 

(1)  The sums of quarterly earnings per share data may not equal annual data due to rounding.  

Basic and diluted net income (loss) per share is computed by dividing net income by the weighted average number of shares for 

the period. Potentially dilutive instruments have been excluded from the computation of diluted loss per share as their impact would 
have been anti-dilutive.  

Because net income (loss) per share amounts are calculated using the weighted average number of common and dilutive 
common shares outstanding during each quarter, the sum of the per share amounts for the four quarters may not equal the total loss per 
share amounts for the year. 

F-44 

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Performance Graph 

SBA  Communications  Corporation’s  (“SBA”  or  “we”)  Class  A  Common  Stock  began  trading  on  The  Nasdaq 
National  Market  on  June  16,  1999  when  its  initial  public  offering  commenced  and  is  currently  traded  on  the 
Nasdaq Global Select Market. The following graph shows the total return to the shareholders of an investment 
in  SBA’s  Class  A  Common  Stock  as  compared  to  (1)  an  investment  in  each  of  the  S&P  500  Index  and  the 
Nasdaq  Composite  Index,  (2)  an  investment  in  the  FTSE  NAREIT  All  Equity  REITs  Index  and  (3)  an 
investment  in  a  peer  group  made  up  of  American  Tower  Corporation  and  Crown  Castle  International 
Corporation, the comparable large domestic public wireless tower companies. During 2017, SBA completed its 
conversion to a Real Estate Investment Trust, or REIT, and was also added to the S&P 500 Index. As a result 
of these developments: 

(cid:120)  We replaced the Nasdaq Composite Index with the S&P 500 Index, which is required by SEC rules to 
be  included  now  that  we  are  included  in  that  index,  and  have  included  both  below  for  comparison 
purposes; and 

(cid:120)  We added the FTSE NAREIT All Equity REITs Index to provide additional comparison to other REITs. 

Total shareholder return is determined by dividing (i) the sum of (A) the cumulative amount of dividends for a 
given period (assuming dividend reinvestment) and (B) the change in share price between the beginning and 
end of the measurement period, by (ii) the share price at the beginning of the measurement period. 

Total Shareholder Returns

SBA Communications Corporation

S&P 500 Index

Large Public Tower Company Peers

FTSE NAREIT All Equity REITs Index

Nasdaq Composite Index

s
r
a

l
l

o
D
n

I

$250

$200

$150

$100

$50

12/31/12

12/31/13

12/31/14

12/31/15

12/31/16

12/31/17

INDEXED RETURNS 

Company Name / Index 
SBA Communications Corporation 
S&P 500 Index 
Large Public Tower Company Peers 
FTSE NAREIT All Equity REITs Index 
Nasdaq Composite Index 

Base 
Period 
12/31/12 
$100.00
$100.00
$100.00
$100.00
$100.00

2013 
$126.57
$132.39
$103.54
$102.86
$140.12

Years Ending 
2015 
$148.03 
$152.59 
$130.64 
$135.40 
$171.97 

2014 
$156.04
$150.51
$122.97
$131.68
$160.78

2016 
$145.48
$170.84
$141.58
$147.09
$187.22

2017 
$230.15
$208.14
$192.15
$159.85
$242.71

Reflects  $100  invested  on  December  31,  2012  in  (i)  the  Class  A  Common  Stock  of  SBA,  (ii)  the  basket  of 
companies  comprising  each  of  the  S&P  500  Index  and  the  Nasdaq  Composite  Index,  (iii)  the  companies 
comprising the group of Large Public Tower Company Peers, and (iv) the basket of companies comprising the 
FTSE NAREIT All Equity REITs Index. 

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Required Disclosures Non-GAAP Financial Measures in Accordance with Regulation G 

SBA  often  makes  disclosures  of  non-GAAP  financial  measures,  such  as  (i)  Tower  Cash  Flow;  (ii)  Adjusted 
EBITDA and Adjusted EBITDA Margin; (iii) Funds from Operations (“FFO”), Adjusted Funds from Operations 
(“AFFO”),  and  AFFO  per  share;  and  (iv)  Cash  Site  Leasing  Revenues  and  Cash  Cost  of  Site  Leasing 
Revenues.    Following  is  a  reconciliation  of  these  non-GAAP  financial  measures  to  their  most  comparable 
GAAP measures and the other information required by Regulation G.  Adjusted EBITDA, which is included in 
this annual report, is discussed and included in our Form 10-K which accompanies this annual report. 

We believe that Tower Cash Flow, Cash Site Leasing Revenue and Cash Cost of Site Leasing Revenues are 
useful indicators of the performance of our site leasing operations. 

We  believe  that  Annualized  Adjusted  EBITDA  and  Adjusted  EBITDA  Margin  are  useful  to  investors  or  other 
interested parties in evaluating our financial performance. Adjusted EBITDA is the primary measure used  by 
management  (1)  to  evaluate  the  economic  productivity  of  our  operations  and  (2)  for  purposes  of  making 
decisions  about  allocating  resources  to,  and  assessing  the  performance  of,  our  operations.  Management 
believes that Adjusted EBITDA helps investors or other interested parties meaningfully evaluate and compare 
the results of our operations (1) from period to period and (2) to our competitors, by excluding the impact of our 
capital structure (primarily interest charges from our outstanding debt) and asset base (primarily depreciation, 
amortization  and  accretion)  from  our  financial  results.  Management  also  believes  Adjusted  EBITDA  is 
frequently  used  by  investors  or  other  interested  parties  in  the  evaluation  of  REITs.  In  addition,  Adjusted 
EBITDA  is  similar  to  the  measure  of  current  financial  performance  generally  used  in  our  debt  covenant 
calculations.  Adjusted  EBITDA  should  be  considered  only  as  a  supplement  to  net  income  computed  in 
accordance with GAAP as a measure of our performance. 

We believe that FFO, AFFO and AFFO per share, which are metrics used by our public company peers in the 
communication  site  industry,  provide  investors  useful  indicators  of  the  financial  performance  of  our  business 
and permit investors an additional tool to evaluate the performance of our business against those of our two 
principal competitors. FFO, AFFO, and AFFO per share are also used to address questions we receive from 
analysts  and  investors  who  routinely  assess  our  operating  performance  on  the  basis  of  these  performance 
measures, which are considered industry standards. We believe that FFO helps investors or other interested 
parties  meaningfully  evaluate  financial  performance  by  excluding  the  impact  of  our  asset  base  (primarily 
depreciation, amortization and accretion). We believe that AFFO and AFFO per share help investors or other 
interested parties meaningfully evaluate our financial performance as they include (1) the impact of our capital 
structure  (primarily  interest  expense  on  our  outstanding  debt)  and  (2)  sustaining  capital  expenditures  and 
exclude  the  impact  of  our  (1)  asset  base  (primarily  depreciation,  amortization  and  accretion)  and  (2)  certain 
non-cash  items,  including  straight-lined  revenues  and  expenses  related  to  fixed  escalations  and  rent  free 
periods and the non-cash portion of our reported tax provision. GAAP requires rental revenues and expenses 
related to leases that contain specified rental increases over the life of the lease to be recognized evenly over 
the life of the lease. In accordance with GAAP, if payment terms call for fixed escalations, or rent free periods, 
the  revenue  or  expense  is  recognized  on  a  straight-lined  basis  over  the  fixed,  non-cancelable  term  of  the 
contract. We only use AFFO as a performance measure. AFFO should be considered only as a supplement to 
net  income  computed  in  accordance  with  GAAP  as  a  measure  of  our  performance  and  should  not  be 
considered as an alternative to cash flows from operations or as residual cash flow available for discretionary 
investment.  We  believe  our  definition  of  FFO  is  consistent  with  how  that  term  is  defined  by  the  National 
Association of Real Estate Investment Trusts (“NAREIT”) and that our definition and use of AFFO and AFFO 
per share is consistent with those reported by the other communication site companies. 

In addition, Tower Cash Flow and Adjusted EBITDA are components of the calculations used by our lenders to 
determine  compliance  with  certain  covenants  under  our  debt  instruments.  These  non-GAAP  financial 
measures  are  not  intended  to  be  an  alternative  to  any  of  the  financial  measures  provided  in  our  results  of 
operations or our balance sheet as determined in accordance with GAAP. 

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Tower Cash Flow 

The table below sets forth the reconciliation of consolidated Tower Cash Flow to its most comparable GAAP 
measurement. 

Site leasing revenue 
Non-cash straight-line leasing revenue 
Cash site leasing revenue 
Site leasing cost of revenues (excluding depreciation, accretion, and 

amortization) 

Non-cash straight-line ground lease expense 
Tower Cash Flow 

For the year 
ended December 31, 

2017 

2016 

($ in thousands) 

1,623,173    $ 
(16,419)  
1,606,754   

 1,538,070
 (31,650)
 1,506,420

(359,527)  
30,850   
1,278,077    $ 

(342,215)
 34,708
1,198,913

$

$

The table below sets forth the reconciliation of International Tower Cash Flow to its most comparable GAAP 
measurement. 

International site leasing revenue 
International non-cash straight-line leasing revenue 
International cash site leasing revenue 
International site leasing cost of revenues (excluding depreciation, 

accretion, and amortization) 

International non-cash straight-line ground lease expense 
International Tower Cash Flow 

$

$

For the year 
ended December 31, 

2017 

2016 

($ in thousands) 

314,785     $ 
(15,492)   
299,293    

(98,701)   
3,740    
204,332     $ 

264,204 
(19,190)
245,014 

(81,275)
3,646 
167,385 

Adjusted EBITDA Margin 

The table below sets forth the reconciliation of Adjusted EBITDA Margin to its most comparable GAAP 
measurement. See our Form 10-K which accompanies this annual report for a discussion and reconciliation of 
Adjusted EBITDA. 

Total revenues 
Non-cash straight-line leasing revenue 
Total revenues minus non-cash straight-line leasing revenue 
Adjusted EBITDA 
Adjusted EBITDA Margin  

For the year 
ended December 31, 

2017 

2016 

($ in thousands) 

1,727,674    $ 
 (16,419)  
1,711,255   
1,204,134    $ 
70.4%   

 1,633,125
 (31,650)
 1,601,475
1,106,495
 69.1%

$

$ 
$ 

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Funds from Operations (“FFO”), Adjusted Funds from Operations (“AFFO”) and AFFO per share 

The table below sets forth the reconciliations of FFO, AFFO and AFFO per share to their most comparable 
GAAP measurement.  

For the year 
ended December 31, 

2017 

2016 

Net income (loss) 
Real estate related depreciation, amortization and accretion 
Adjustments for unconsolidated joint ventures (1) 

FFO 

Adjustments to FFO: 
Non-cash straight-line leasing revenue 
Non-cash straight-line ground lease expense 
Non-cash compensation 
Adjustment for non-cash portion of tax provision (2) 
Non-real estate related depreciation, amortization and accretion 
Amortization of deferred financing costs and debt discounts 
Loss from extinguishment of debt, net 
Other expense (income) 
Acquisition related adjustments and expenses 
Asset impairment and decommission costs 
Non-discretionary cash capital expenditures 
Adjustments for unconsolidated joint ventures (1) 

AFFO 

Weighted average number of common shares (3) 

AFFO per share 

$ 

$

$

($ in thousands, except per share amounts)
$

103,654    $ 
639,219   
1,640   
744,513    $ 

76,238
632,985
—
709,223

(16,419)  
30,850  
38,249  
(3,961)   
3,882   
24,819  
1,961  
2,418  
12,367  
36,697  
(35,225)  
349  
840,500   $ 
121,022  

6.95    $ 

(31,650)
34,708
32,915
1,409
5,204
23,339
52,701
(94,278)
13,140
30,242
(32,452)
—
744,501
125,144
5.95

(1)  Adjustments for unconsolidated joint ventures represent (a) with respect to the calculation of FFO, that 
portion of the joint ventures’ depreciation, amortization and accretion to the extent included in our net 
income and (b) with respect to the calculation of AFFO, that portion of the joint ventures’ straight-line 
leasing revenue and ground lease expense, other (income) expense and acquisition related adjustments 
and expenses, in each case to the extent included in our net income. 

(2)  Removes the non-cash portion of the tax provision for the period specified 

(3)  For purposes of the AFFO per share calculation, the basic weighted average number of common shares 

has been adjusted to include the dilutive effect of stock options and restricted stock units. 

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Cash Site Leasing Revenue and Cash Cost of Site Leasing Revenue 

The table below sets forth the reconciliations of Cash Site Leasing Revenue and Cash Cost of Site Leasing 
Revenue to their most comparable GAAP measurement. 

For the year ended 

12/31/2017 

12/31/2012 

Site leasing revenue 
Non-cash straight-line leasing revenue 
Cash site leasing revenue 
Site leasing cost of revenues (excluding depreciation, 

accretion, and amortization) 

Non-cash straight-line ground lease expense 
Cash cost of site leasing revenue 
Cash cost as a percentage of cash site leasing 

$

$

$

revenue 

(in thousands) 
$ 

1,623,173 
(16,419)
1,606,754 

359,527 
(30,850)
328,677 

20.46% 

$ 

$ 

846,094 
(52,009)
794,085 

188,951 
(22,463)
166,488 

20.97% 

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Special Note Regarding Forward-Looking Statements 

This  annual  report  contains  forward-looking  statements  that  concern  expectations,  beliefs,  projections, 
strategies, anticipated events or trends regarding (i) the growth and development of the wireless industry in our 
domestic  markets  and  international  markets,  particularly  Brazil,  the  drivers  of  such  growth,  emerging 
technologies  and  the  key  industry  growth  catalysts,  (ii)  the  infrastructure  needed  to  meet  future  growth  in 
demand and our positioning to participate in such growth, including the continued need for macro sites, (iii) the 
geographic markets in which we operate, potential entry into new markets in the future and our strategy with 
respect to new markets, (iv) future portfolio and organic growth, both domestically and internationally, and the 
drivers of that growth, (v) future customer activity levels, including with respect to FirstNet, customer spending 
cycles and backlog, (vi) investment by our customers in their networks and the drivers of that investment, (vii) 
our  capital  allocation  strategy  and  investment  criteria  with  respect  to  portfolio  growth  and  stock  repurchases 
and their impact on shareholder value creation, (viii) our long term goal of producing AFFO of $10 or more per 
share in 2020, the factors contributing to our ability to achieve that goal and our progress toward achieving that 
goal,  (ix)  our  balance  sheet  strategy,  including  our  target  leverage  range,  and  the  availability  of  future 
financing, and (x) our growth and financial results for 2018.  These forward-looking statements are qualified in 
their entirety by cautionary statements set forth under “Special Note Regarding Forward-Looking Statements” 
and the risk factor disclosures contained in our Form 10-K filed with the Securities and Exchange Commission 
on March 1, 2018 and included in this annual report. 

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SBA  
COMMUNICATIONS
directors

Steven E. Bernstein
Chairman of the Board

Mary S. Chan
Director

Jeffrey A. Stoops
Director, President and
Chief Executive Officer

Kevin L. Beebe
Director

Brian C. Carr
Director

senior managEment

Jeffrey A. Stoops
President and
Chief Executive Officer

Kurt Bagwell
President, International

Brendan T. Cavanagh
Executive Vice President
and Chief Financial Officer

Mark R. Ciarfella
Executive Vice President,
Operations

Thomas P. Hunt
Executive Vice President,
Chief Administrative Officer
and General Counsel

Jason V. Silberstein
Executive Vice President,
Site Leasing

Duncan H. Cocroft
Director

George R. Krouse Jr.
Director

Jack L. Langer
Director

Brian M. Allen
Senior Vice President,
Site Leasing

Jorge Grau
Senior Vice President
and Chief Information Officer

Brian D. Lazarus
Senior Vice President
and Chief Accounting Officer

Jo Carol Rutherford
Senior Vice President
and Chief Human  
Resources Officer

Neil H. Seidman
Senior Vice President,
Mergers and Acquisitions

COMMON STOCK TRADING SYMBOL
Class A shares of SBA Communications
Corporation are traded on the NASDAQ
Global Select Market under the symbol: 
SBAC

INTERNET WEBSITE
www.sbasite.com

© 2018 SBA Communications Corporation. All Rights Reserved. The SBA logo, Your Signal Starts Here 
and Building Better Wireless are all registered trademarks owned by SBA Telecommunications, Inc. and 
affiliated  SBA  companies.  Other  brands  and  product  names  mentioned  herein  may  be  trademarks  or 
registered trademarks of their respective companies.

HEADQUARTERS
8051 Congress Avenue
Boca Raton, FL 33487-1307
T + 561.995.7670
T + 800.487.SITE (7483)
REGIONAL OFFICES
North America
Montreal, Canada
Alpharetta, Georgia
Biddeford, Maine
Chicago, Illinois
Fenton, Missouri
Indianapolis, Indiana
Nashville, Tennessee
Pelham, Alabama
Pittsburgh, Pennsylvania
Santa Ana, California
Woodbridge, New Jersey

Central America
Guatemala City, Guatemala
Managua, Nicaragua
Panama City, Panama
San Jose, Costa Rica
San Salvador, El Salvador

South America
Bogota, Colombia
Buenos Aires, Argentina
Lima, Peru
Quito, Ecuador
Santiago, Chile
Sao Paulo, Brazil

AUDITORS
Ernst & Young LLP
5100 Town Center Circle
Suite 500
Boca Raton, FL 33486
TRANSFER AGENT
Computershare Trust Company, N.A.
P.O. Box 43069
Providence, RI 02940-3069
www.computershare.com/equiserve
INVESTOR RELATIONS
SBA Communications Corporation
8051 Congress Avenue
Boca Raton, FL 33487-1307
ir@sbasite.com
NOTICE OF ANNUAL MEETING
The annual meeting of shareholders
will be held at 10:00 AM (Eastern)
on Thursday, May 17, 2018 at the
corporate headquarters:
8051 Congress Avenue
Boca Raton, FL 33487-1307

8051 Congress Avenue, Boca Raton, FL 33487

800.487.SITE

www.sbasite.com

ir@sbasite.com