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Allison Transmission

alsn · NYSE Consumer Cyclical
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Ticker alsn
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Sector Consumer Cyclical
Industry Auto - Parts
Employees 1001-5000
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FY2021 Annual Report · Allison Transmission
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THE POWER  OF ALLISON2021 Annual Report 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Providing the most reliable and valued 
propulsion solutions in the world

Allison Transmission is a global propulsion technology leader that designs, manufactures and distributes vehicle propulsion solutions for commercial 
and defense vehicles. A leader and established supplier of commercial-duty electrified propulsion systems and the world’s largest global manufacturer 
of medium- and heavy-duty fully automatic transmissions, Allison offers a broad range of propulsion solutions that are used in a wide variety of 
applications, including on-highway trucks (distribution, refuse, construction, fire and emergency, etc.), buses (school, transit and coach) including the 
industry’s  first  electric  hybrid  propulsion  solution  for  articulated  and  non-articulated  transit  buses  launched  in  2003,  motorhomes,  off-highway 
vehicles and equipment (energy, mining and construction applications) and defense vehicles (tactical wheeled and tracked). 

In  2022,  Allison  completed  10  years  since  its  initial  public  offering  took  place  in  March  of  2012.  Over  the  years  we  have  worked  diligently  to 
strengthen  our  enterprise,  support  our  customers,  serve  our  communities  and  deliver  the  Allison  brand  promise.  We  have  invested  across  the 
organization, driving world class performance in manufacturing and product development, while delivering strong financial results and creating 
value for all of our stakeholders. Today, our success remains aligned with our long term strategy of continuous global market leadership expansion, 
and we continue to invest strategically to develop innovative solutions that will help our customers reduce emissions, enhance productivity and 
Improve the Way the World Works.

Founded  in  1915,  the  company  is  headquartered  in  Indianapolis,  Indiana,  USA  and  employs  approximately  3,400  employees.  With  a  market 
presence in more than 150 countries, Allison has regional headquarters in the Netherlands, China and Brazil, manufacturing facilities in the U.S., 
Hungary  and  India,  as  well  as  global  engineering  resources,  including  electrification  engineering  centers  in  Indianapolis,  Indiana,  Auburn  Hills, 
Michigan and London in the United Kingdom. Allison also has more than 1,400 independent distributor and dealer locations worldwide. For more 
information, visit allisontransmission.com.

Adjusted  Free Cash 
Flow (NON-GAAP)

Adjusted  EBITDA  
(NON-GAAP)

Net Income

(dollars in millions)

(dollars in millions)

(dollars in millions)

2021 NET SALES % 
BY END MARKET

$675

$1,083

$604

$458

$460

$844

$732

$442

$299

`19

`20

2021

`19

`20

2021

`19

`20

2021

49%
North America On-Highway

22%
Service Parts, Support Equipment 
& Other

16%
Outside North America On-Highway

8%
Defense

3%
Outside North America Off-Highway

2%
North America Off-Highway

Allison Transmission
2021 FORM 10-K

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Table of Contents 

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

FORM 10-K 

(cid:1409)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2021 
OR 

(cid:1407)  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File No. 001-35456 

ALLISON TRANSMISSION HOLDINGS, INC. 

(Exact Name of Registrant as Specified in Its Charter) 

Delaware
(State of Incorporation) 

26-0414014
(I.R.S. Employer 
Identification Number) 

One Allison Way 
Indianapolis, IN 46222 
(Address of Principal Executive Offices and Zip Code) 

(317) 242-5000
(Registrant’s Telephone Number, Including Area Code) 

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class 
Common Stock, $0.01 par value 

Trading Symbol(s) 
ALSN 

Name of each exchange on which registered 
New York Stock Exchange 

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  (cid:1409)    No  (cid:1407) 
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  (cid:1407)    No  (cid:1409) 
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  (cid:1409)    No  (cid:1407) 
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 
405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to
submit such files).    Yes  (cid:1409)    No  (cid:1407) 
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
Emerging growth company

(cid:1409) 
(cid:1407) 
(cid:1407) 

Accelerated filer 
Smaller reporting company

(cid:1407) 
(cid:1407) 

If an emerging growth company, indicate by check mark 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 13(a) of the Exchange Act.  (cid:1407) 
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its 
internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting 
firm that prepared or issued its audit report.  (cid:1409) 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  (cid:1407)    No  (cid:1409) 
The aggregate market value of the voting and non-voting stock held by non-affiliates was approximately $4,182 million as of June 30, 2021. 
As of February 3, 2022, there were 97,819,154 shares of Common Stock outstanding. 

Portions of the Registrant’s definitive Proxy Statement for its 2022 annual meeting of stockholders will be incorporated by r eference in Part III of 
this Annual Report on Form 10-K. 

Documents Incorporated by Reference 

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Table of Contents 

INDEX 

PART I. 

Item 1.  Business 

Item 1A.  Risk Factors 

Item 1B.  Unresolved Staff Comments 

Item 2.  Properties 

Item 3.  Legal Proceedings 

Item 4.  Mine Safety Disclosures 

PART II. 

Item 5.  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 

Equity Securities 

Item 6. 

[Reserved] 

Item 7.  Management’s Discussion and Analysis of Financial Condition and Results of Operations 

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk 

Item 8.  Financial Statements and Supplementary Data 

Item 9.  Changes in and Disagreements With Accountants on Accounting and Financial Disclosure 

Item 9A.  Controls and Procedures 

Item 9B.  Other Information 

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections 

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 and Financial Statement Schedules 

Item 16.  Form 10-K Summary 

Signatures 

Page 

4

17

31

32

32

32

33

34

35

50

52

95

95

96

96

97

97

97

97

97

98

102

103

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Table of Contents 

Cautionary Note Regarding Forward-Looking Statements 

This Annual Report on Form 10-K contains forward-looking statements. The words “believe,” “expect,” 

“anticipate,” “intend,” “estimate” and other expressions that are predictions of or indicate future events and trends and 
that do not relate to historical matters identify forward-looking statements. You should not place undue reliance on 
these forward-looking statements. Although forward-looking statements reflect management’s good faith beliefs, 
reliance should not be placed on forward-looking statements because they involve known and unknown risks, 
uncertainties and other factors, which may cause actual results, performance or achievements to differ materially 
from anticipated future results, performance or achievements expressed or implied by such forward-looking 
statements. Forward-looking statements speak only as of the date the statements are made. We undertake no 
obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future 
events, changed circumstances or otherwise. These forward-looking statements are subject to numerous risks and 
uncertainties, including, but not limited to: the duration and spread of the COVID-19 pandemic, including new variants 
of the virus and the pace and availability of vaccines and boosters, mitigating efforts deployed by government 
agencies and the public at large, and the overall impact from such outbreak on economic conditions, financial market 
volatility and our business, including but not limited to the operations of our manufacturing and other facilities, the 
availability of labor, our supply chain, our distribution processes and demand for our products and the corresponding 
impacts to our net sales and cash flow; increases in cost, disruption of supply or shortage of labor, freight, raw 
materials or components used to manufacture or transport our products or those of our customers or suppliers, 
including as a result of the COVID-19 pandemic; our participation in markets that are competitive; our ability to 
prepare for, respond to and successfully achieve our objectives relating to technological and market developments, 
competitive threats and changing customer needs, including with respect to electric hybrid and fully electric 
commercial vehicles; the highly cyclical industries in which certain of our end users operate; uncertainty in the global 
regulatory and business environments in which we operate; the concentration of our net sales in our top five 
customers and the loss of any one of these; the failure of markets outside North America to increase adoption of fully 
automatic transmissions; the success of our research and development efforts, the outcome of which is uncertain; 
U.S. and foreign defense spending; risks associated with our international operations, including increased trade 
protectionism; general economic and industry conditions; the discovery of defects in our products, resulting in delays 
in new model launches, recall campaigns and/or increased warranty costs and reduction in future sales or damage to 
our brand and reputation; our ability to identify, consummate and effectively integrate acquisitions and collaborations; 
labor strikes, work stoppages or similar labor disputes, which could significantly disrupt our operations or those of our 
principal customers or suppliers; and risks related to our indebtedness. 

Important factors that could cause actual results to differ materially from our expectations are disclosed under 

Part I, Item 1A, “Risk Factors” in this Annual Report on Form 10-K. All written and oral forward-looking statements 
attributable to us, or persons acting on our behalf, are expressly qualified in their entirety by the cautionary 
statements as well as other cautionary statements that are made from time to time in our other Securities and 
Exchange Commission filings or public communications. You should evaluate all forward-looking statements made in 
this Annual Report on Form 10-K in the context of these risks and uncertainties. 

Certain Trademarks 

This Annual Report on Form 10-K includes trademarks, such as Allison Transmission, eGen Flex, eGen Power, 
FracTran, TerraTran, ReTran and Walker Die Casting, which are protected under applicable intellectual property laws 
and are our property and/or the property of our subsidiaries. This report also contains trademarks, service marks, 
copyrights and trade names of other companies, which are the property of their respective owners. We do not intend 
our use or display of other companies’ trademarks, service marks, copyrights or trade names to imply a relationship 
with, or endorsement or sponsorship of us by, any other companies. Solely for convenience, our trademarks and 
trade names referred to in this report may appear without the ® or TM symbols, but such references are not intended 
to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the rights of the 
applicable licensor to these trademarks and trade names.

3 

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Table of Contents 

ITEM 1. Business 

Overview 

PART I. 

Allison Transmission Holdings, Inc. and its subsidiaries (“Allison,” the “Company,” “we,” “us” or “our”) design 

and manufacture vehicle propulsion solutions, including commercial-duty on-highway, off-highway and defense fully 
automatic transmissions and electric hybrid and fully electric systems. The business was founded in 1915 and has 
been headquartered in Indianapolis, Indiana since inception. Allison is traded on the New York Stock Exchange 
under the symbol “ALSN”. 

We have approximately 3,400 employees. Although approximately 76% of revenues were generated in North 
America in 2021, we have a global presence by serving customers in Asia, Europe, South America and Africa. We 
serve customers through an independent network of approximately 1,400 independent distributor and dealer 
locations worldwide. 

Throughout 2021, the COVID-19 pandemic continued to cause supply chain, labor and raw material 

constraints that created volatility in our business performance and impacted global markets and supply chains. As a 
result, we experienced, and expect to continue to experience, raw material and component part price inflation, 
increased freight and logistics costs and increased overtime expense as a result of labor shortages. In addition, 
despite increased customer demand our net sales for 2021 were negatively impacted as a result of our customers’ 
inability to secure components from the broader commercial vehicle supply base which resulted in reduced 
commercial vehicle build schedules. We expect that commercial vehicle build schedules will continue to be 
negatively impacted by the availability of components in 2022.  

To limit the spread of COVID-19, governments continue to take various actions including the administration or 
mandate of vaccinations, travel bans and restrictions, quarantines, curfews, stay-at-home orders, social distancing 
guidelines and business shutdowns and closures. We are also continuing to take a variety of measures to promote 
the safety and security of our employees and to maintain operations with as minimal impact as possible to our 
stakeholders, and as a result, we have been able to continue our manufacturing operations and deliver our products 
to customers. 

Our Business 

We are the world’s largest manufacturer of fully automatic transmissions for medium- and heavy-duty 
commercial vehicles and medium- and heavy-tactical U.S. defense vehicles and a leader in electrified propulsion 
systems. Allison products are used in a wide variety of applications, including on-highway trucks (distribution, 
refuse, construction, fire and emergency), buses (primarily school and transit), motorhomes, off-highway vehicles 
and equipment (primarily energy, mining and construction applications) and defense vehicles (tactical wheeled and 
tracked). We believe the Allison brand is one of the most recognized in our industry as a result of the performance, 
reliability and fuel efficiency of our propulsion solutions and is associated with high quality, durability, vocational 
value, technological leadership and superior customer service. 

We introduced the world’s first fully automatic transmission for commercial vehicles over 70 years ago. Since 

that time, we have driven the trend in North America and other parts of the world towards increasing automaticity by 
targeting a diverse range of commercial vehicle vocations. Allison products are optimized for the unique 
performance requirements of end users, which typically vary by vocation. Our products are highly engineered, 
requiring advanced manufacturing processes, and employ complex software algorithms for our propulsion system 
controls to maximize end user performance. We have developed over 100 different models that are used in more 
than 2,500 different vehicle configurations and are compatible with more than 500 combinations of engine brands, 

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Table of Contents 

models and ratings (including diesel, gasoline, natural gas and other alternative fuels). Additionally, we have 
created thousands of unique Allison-developed calibrations available to be used with our control modules. 

Our Industry 

Commercial vehicles typically employ one of three transmission types: manual, automated manual or fully 
automatic. Manual and automated manual transmissions ("AMT") are the most prevalent transmission type used in 
Class 8 tractors in North America. Manual transmissions are the most prevalent in medium- and heavy-duty 
commercial vehicles, generally, outside North America. Manual transmissions utilize a disconnect clutch causing 
power to be interrupted during each gear shift resulting in energy loss-related inefficiencies and less work being 
accomplished for a given amount of fuel consumed. In long-distance trucking, this power interruption is not a 
significant factor, as the manual transmission provides its highest degree of fuel economy during steady-state 
cruising. However, steady-state cruising is only one part of the duty cycle. When the duty cycle requires a high 
degree of “start and stop” activity or speed transients, as is common in many vocations as well as in urban 
environments, we believe manual transmissions result in reduced performance, lower fuel efficiency, lower average 
speed for a given amount of fuel consumed and inferior ride quality. Moreover, the clutches must be replaced 
regularly, resulting in increased maintenance expense and vehicle downtime. Manual transmissions also require a 
skilled driver to operate the disconnect clutch when launching the vehicle and shifting gears. AMTs are manual 
transmissions that feature automated operation of the disconnect clutch. Fully automatic transmissions utilize 
technology that smoothly shifts gears instead of a disconnect clutch, thereby delivering uninterrupted power to the 
wheels during gear shifts and requiring minimal driver input. These transmissions deliver superior acceleration, 
higher productivity, increased fuel efficiency, reduced operating costs, less driveline shock and smoother shifting 
relative to both manual transmissions and AMTs in vocations with a high degree of “start and stop” activity, as well 
as in urban environments. 

Emerging technologies in commercial-duty propulsion solutions include electric hybrid and fully electric 
propulsion solutions in certain end markets and are in part driven by efforts to reduce fuel consumption, noise and 
greenhouse gas emissions. Fully electric powertrains differ from electric hybrid powertrains because they only 
propel the vehicle with an electric motor; while electric hybrids generally utilize both a conventional internal 
combustion power source and powertrain as well as the means to propel the vehicle electrically. While both 
emerging technologies are gaining use in automotive markets and electric hybrids and fully electric propulsion 
solutions have gained use in the transit bus market, fully electric propulsion solutions remain in a developmental 
phase in the medium- and heavy-duty commercial vehicle market. 

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Table of Contents 

Our Served Markets 

We sell our propulsion solutions globally for use in medium- and heavy-duty on-highway commercial vehicles, 

off-highway vehicles and equipment and defense vehicles. In addition to the sale of propulsion solutions, we also 
sell branded replacement parts, support equipment, aluminum die cast components and other products necessary 
to service the installed base of vehicles utilizing our solutions. The following table provides a summary of our 
business by end market, for the fiscal year ended December 31, 2021. 

END MARKET 
2021 NET SALES 
(IN MILLIONS) 
% OF TOTAL 

NORTH AMERICA 

     OUTSIDE NORTH AMERICA 

ON- 
HIGHWAY 

OFF- 
HIGHWAY 

ON- 
HIGHWAY 

OFF- 
HIGHWAY 

  DEFENSE 

SERVICE 
PARTS,  
SUPPORT 
EQUIPMENT 
& OTHER 

    $ 

1,177      $ 

58  

   $ 

381      $ 

83  

   $ 

186  

   $ 

517  

2% 
• Construction 
• Energy 
• Mining 
• Specialty 
vehicle 

16% 
• Construction 
• Distribution 
• Emergency 
• Refuse 
• Transit, 
shuttle and 
coach buses 
• Utility 

3% 
• Construction 
• Energy 
• Mining 
• Specialty 
vehicle 

8% 
• Medium- and 
heavy-tactical 
wheeled 
platforms 
• Tracked 
combat 
platforms 

49% 
• Construction 
• Day Cab 
Tractors 
• Distribution 
• Emergency 
• Motorhome 
• Refuse 
• School, 
transit, shuttle 
and coach 
buses 
• Utility 

22% 

• Aluminum die 
cast components 
• Extended 
transmission 
coverage 
• Remanufactured 
transmissions 
• Royalties 
• Saleable 
engineering 
• Service parts 
• Support 
equipment 
• Transmission 
fluids 

Refer to "NOTE 19. Concentration of Risk” in Part II, Item 8., of this Annual Report on Form 10-K for 

additional information on our significant original equipment manufacturer (“OEM”) customers. 

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Table of Contents 

North America 

On-Highway. We are the largest manufacturer of fully automatic transmissions for the on-highway medium- 

and heavy-duty commercial vehicle market in North America. The following is a summary of our on-highway net 
sales by vehicle class in North America. 

(cid:49)(cid:47)(cid:49)(cid:48)(cid:1)(cid:7)(cid:26)(cid:28)(cid:30)(cid:20)(cid:1)(cid:2)(cid:24)(cid:17)(cid:28)(cid:21)(cid:15)(cid:13)(cid:1)(cid:8)(cid:25)(cid:39)(cid:5)(cid:21)(cid:19)(cid:20)(cid:33)(cid:13)(cid:34)(cid:1)(cid:7)(cid:17)(cid:30)(cid:1)(cid:10)(cid:13)(cid:23)(cid:17)(cid:29)(cid:1)(cid:3)(cid:34)(cid:1)(cid:4)(cid:23)(cid:13)(cid:29)(cid:29)(cid:38)(cid:11)(cid:34)(cid:27)(cid:17)(cid:1)

(cid:11)(cid:28)(cid:13)(cid:25)(cid:29)(cid:21)(cid:30)(cid:38)(cid:10)(cid:20)(cid:32)(cid:31)(cid:23)(cid:17)(cid:38)(cid:1)
(cid:4)(cid:26)(cid:13)(cid:15)(cid:20)(cid:1)(cid:3)(cid:32)(cid:29)(cid:1)
(cid:52)(cid:58)(cid:1)

(cid:10)(cid:15)(cid:20)(cid:26)(cid:26)(cid:23)(cid:1)(cid:3)(cid:32)(cid:29)(cid:1)
(cid:54)(cid:58)(cid:1)

(cid:6)(cid:26)(cid:30)(cid:26)(cid:28)(cid:20)(cid:26)(cid:24)(cid:17)(cid:1)
(cid:52)(cid:58)(cid:1)

(cid:8)(cid:30)(cid:20)(cid:17)(cid:28)(cid:1)
(cid:50)(cid:58)(cid:1)

(cid:4)(cid:23)(cid:13)(cid:29)(cid:29)(cid:1)(cid:51)(cid:39)(cid:52)(cid:1)(cid:11)(cid:28)(cid:32)(cid:15)(cid:22)(cid:1)
(cid:52)(cid:58)(cid:1)

(cid:4)(cid:23)(cid:13)(cid:29)(cid:29)(cid:1)(cid:53)(cid:39)(cid:54)(cid:1)(cid:11)(cid:28)(cid:32)(cid:15)(cid:22)(cid:1)
(cid:49)(cid:55)(cid:58)(cid:1)

(cid:4)(cid:23)(cid:13)(cid:29)(cid:29)(cid:1)(cid:55)(cid:1)(cid:10)(cid:30)(cid:28)(cid:13)(cid:21)(cid:19)(cid:20)(cid:30)(cid:1)(cid:11)(cid:28)(cid:32)(cid:15)(cid:22)(cid:1)
(cid:51)(cid:54)(cid:58)(cid:1)

Our core North American on-highway market includes Class 4-5, Class 6-7 and Class 8 straight trucks, 
conventional transit, shuttle and coach buses, school buses and motorhomes. Class 8 trucks are subdivided into 
two markets: straight and tractor. Class 8 straight trucks are those with a unified body (e.g., refuse, construction, 
and dump trucks), while tractors have a vehicle chassis that is separable from the trailer they pull. We have been 
supplying transmissions for Class 8 straight trucks for decades, and it is a core end market for us. We have limited 
exposure to the Class 8 tractor market because lower priced manual transmissions and AMTs generally meet the 
needs of these vehicles which are primarily used in long distance hauling. 

We also provide electric hybrid and fully electric propulsion solutions within the North American on-highway 
market. The interest in conserving fuel and reducing greenhouse gas emissions is driving demand for more fuel-
efficient commercial vehicles. Our electric hybrid and fully electric propulsion customers include bus and truck 
applications. We compete primarily with BAE Systems plc and manufacturers of fully electric propulsion solutions 
such as Dana Incorporated and Meritor, Inc. as well as certain vertically integrated OEMs. 

We sell substantially all of our propulsion solutions in the North American on-highway market to OEMs. These 

OEMs, in turn, install our propulsion solutions in vehicles in which our product is either the exclusive propulsion 
solution available or is specifically requested by end users. In 2021, OEM customers representing over 95% of our 
North American on-highway unit volume participated in long-term agreements (“LTAs”) with us. Generally, these 
LTAs offer the OEM customer defined levels of mutual commitment with respect to growing Allison’s presence in 
the OEMs’ products and promotional efforts, pricing and sharing of commodity cost risk. The length of our LTAs is 
typically between three and five years. We often compete in this market against independent manufacturers of 
manual transmissions, AMTs, electric hybrid and fully electric propulsion solutions, fully automatic transmissions 
manufactured by Ford Motor Company (“Ford”), ZF Friedrichshafen AG (“ZF”) and Voith GmbH (“Voith”) and 
against vertically integrated OEMs in certain weight classes that use their own internally manufactured 
transmissions in certain vehicles. 

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Table of Contents 

The following table presents a summary of our market share by vehicle class in the North America On-

Highway end market. 

2021 SHARE 

CLASS 4-5 
TRUCKS 
14% 

   MOTOR HOME     SCHOOL BUS 

50% 

87% 

CLASS 6-7 
TRUCKS 
77% 

CLASS 8 STRAIGHT
TRUCKS 
77% 

CLASS 8 
 DAY CAB 
4% 

Off-Highway. We have provided products used in vehicles and equipment that serve energy, mining and 
construction applications in North America for over 70 years. Off-highway energy applications include hydraulic 
fracturing equipment, well-stimulation equipment, pumping equipment, and well-servicing rigs, which often use a 
fully automatic transmission to propel the vehicle and drive auxiliary equipment. We supply our heavy duty off-
highway transmissions to producers of well-stimulation and well-servicing equipment. Competition includes 
Caterpillar Inc. (“Caterpillar”) and Twin Disc, Inc. (“Twin Disc”). 

We also provide heavy-duty transmissions used in mining trucks, specialty vehicles and construction vehicles. 

Mining applications include trucks used to haul various commodities and other products, including rigid dump 
trucks, underground trucks and long-haul tractor trailer trucks with load capacities between 40 to 110 tons. Our 
major competitors in this end market are Caterpillar and Komatsu Ltd. (“Komatsu”), both of which are vertically 
integrated and manufacture fully automatic transmissions for their own vehicles. Specialty vehicles using our heavy-
duty transmissions include airport rescue and firefighting vehicles and heavy-equipment transporters. Our major 
competitor in this end market is Twin Disc. Construction applications include articulated dump trucks, with 
Caterpillar, Volvo Group (“Volvo”) and ZF as competitors. 

Outside North America 

Outside North America we serve several different markets, including: Asia-Pacific, Europe, Middle East, Africa 

(collectively, “EMEA”), and South America. 

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On-Highway. We are the largest manufacturer of fully automatic transmissions for the commercial vehicle 
market outside of North America. We also provide electric hybrid and fully electric propulsion solutions within the 
outside North America on-highway market. While the use of fully automatic transmissions in the medium- and 
heavy-duty commercial vehicle market has been widely accepted in North America, markets outside North America 
continue to be dominated by manual transmissions. Where adopted, fully automatic transmission-equipped 
medium- and heavy-duty commercial vehicles are concentrated in certain vocational end markets. We often 
compete in this market against independent manufacturers of manual transmissions, AMTs, electric hybrid and fully 
electric propulsion solutions, fully automatic transmissions manufactured by ZF, Voith, and Shaanxi Fast Gear Co., 
Ltd. and against vertically integrated OEMs. The following is a summary of our on-highway net sales by region 
outside of North America. 

(cid:43)(cid:41)(cid:43)(cid:42)(cid:1)(cid:8)(cid:31)(cid:30)(cid:29)(cid:23)(cid:16)(cid:17)(cid:1)(cid:7)(cid:27)(cid:28)(cid:30)(cid:22)(cid:1)(cid:2)(cid:25)(cid:17)(cid:28)(cid:23)(cid:15)(cid:13)(cid:1)(cid:8)(cid:26)(cid:36)(cid:5)(cid:23)(cid:21)(cid:22)(cid:32)(cid:13)(cid:33)(cid:1)(cid:7)(cid:17)(cid:30)(cid:1)(cid:11)(cid:13)(cid:24)(cid:17)(cid:29)(cid:1)(cid:3)(cid:33)(cid:1)(cid:10)(cid:17)(cid:21)(cid:23)(cid:27)(cid:26)(cid:1)

(cid:11)(cid:27)(cid:31)(cid:30)(cid:22)(cid:1)(cid:2)(cid:25)(cid:17)(cid:28)(cid:23)(cid:15)(cid:13)(cid:1)
(cid:49)(cid:53)(cid:1)

(cid:4)(cid:6)(cid:4)(cid:2)(cid:1)
(cid:45)(cid:41)(cid:53)(cid:1)

(cid:2)(cid:29)(cid:23)(cid:13)(cid:1)(cid:9)(cid:13)(cid:15)(cid:23)(cid:20)(cid:15)(cid:1)
(cid:46)(cid:43)(cid:53)(cid:1)

Asia-Pacific. Our key Asia-Pacific markets include China, Japan, South Korea and India; however, we 
actively participate in several other important Asia-Pacific countries including Australia, Thailand, Malaysia, Taiwan 
and Indonesia, which are primarily importers of commercial vehicles. Within Asia-Pacific, our sales efforts are 
principally focused on the transit bus and vocational truck markets. Currently, manual transmissions are the 
predominant transmissions used in commercial vehicles in the Asia-Pacific region. In China, government subsidies 
and regulations by governmental entities continue to drive the development and adoption of fully electric propulsion 
solutions for use in the bus and truck markets. 

Europe, Middle East, Africa. EMEA is composed of several different markets, each of which differs from our 

core North American market by the degree of market maturity, sophistication and acceptance of fully automatic 
transmission and electric propulsion solution technology. Within Europe, we serve Western European developed 
markets, as well as Russian and Eastern European emerging markets, principally in the refuse, emergency, bus, 
coach, distribution and utility markets. Competition in Western Europe is most notably characterized by a high level 
of vertical powertrain integration with OEMs often utilizing their own manual transmissions and AMTs in their 
vehicles, and increasingly electric hybrid and fully electric propulsion solutions. The Middle East and Africa regions 
are generally characterized by very limited local vehicle production, with imports from China, Europe, India, South 
America, Turkey and the U.S. accounting for the majority of vehicles. 

South America. The South American region is characterized by a high level of OEM integration, with captive 
manual transmission and AMT manufacturing. Currently, manual transmissions are the predominant transmissions 
used in commercial vehicles in South America. 

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Off-Highway. The following is a summary of our off-highway net sales by region outside of North America. 

(cid:43)(cid:41)(cid:43)(cid:42)(cid:1)(cid:8)(cid:31)(cid:30)(cid:29)(cid:23)(cid:16)(cid:17)(cid:1)(cid:7)(cid:27)(cid:28)(cid:30)(cid:22)(cid:1)(cid:2)(cid:25)(cid:17)(cid:28)(cid:23)(cid:15)(cid:13)(cid:1)(cid:8)(cid:19)(cid:36)(cid:5)(cid:23)(cid:21)(cid:22)(cid:32)(cid:13)(cid:33)(cid:1)(cid:7)(cid:17)(cid:30)(cid:1)(cid:11)(cid:13)(cid:24)(cid:17)(cid:29)(cid:1)(cid:3)(cid:33)(cid:1)(cid:10)(cid:17)(cid:21)(cid:23)(cid:27)(cid:26)(cid:1)

(cid:4)(cid:6)(cid:4)(cid:2)(cid:1)
(cid:44)(cid:41)(cid:53)(cid:1)

(cid:2)(cid:29)(cid:23)(cid:13)(cid:1)(cid:9)(cid:13)(cid:15)(cid:23)(cid:20)(cid:15)(cid:1)
(cid:48)(cid:41)(cid:53)(cid:1)

Asia-Pacific. Off-highway markets in Asia are shared by energy, mining and construction applications. Our 

primary competitors are Caterpillar, Danyang Winstar Auto Parts Co., Ltd., Twin Disc and Xi’an FC Intelligence 
Transmission Co. Ltd. in energy applications; Caterpillar, Danyang Winstar Auto Parts Co., Ltd. and Komatsu in 
mining applications; and Caterpillar, Volvo and ZF in construction applications. 

Europe, Middle East, Africa. Our off-highway markets in EMEA are mining and construction. Our major off-

highway competitors are Caterpillar and Komatsu, both of which are vertically integrated manufacturers of off-
highway mining vehicles, including the specific fully automatic transmission used in their mining trucks. A typical 
construction application is a rigid or articulated dump truck, with competition from Caterpillar, Dana Incorporated, 
Volvo and ZF transmissions. 

Defense 

We have a long-standing relationship with the U.S. Department of Defense (the “DOD”) dating back to 1946, 

when we began developing our first-generation tank transmission. Today, we sell substantially all of the 
transmissions for medium- and heavy-tactical wheeled vehicle platforms including the Joint Light Tactical Vehicle, 
Light Armored Vehicle, Stryker Armored Vehicle, Mine Resistant Ambush Protected Vehicle, the Family of Medium 
Tactical Vehicles, Heavy Expanded Mobility Tactical Trucks, Palletized Loading System for Heavy Dump Truck and 
Heavy Equipment Transporters. Transmissions for our wheeled vehicle platforms are typically sold to OEMs. 

We also supply more than half of the tracked vehicle transmissions in U.S. Army armored brigades directly to 

the DOD, including the Abrams M1A2 Main Battle Tank, Joint Assault Bridge, Assault Breacher Vehicles and the 
M113A3 Armored Personnel Carrier family of vehicles. We also sell transmissions to the DOD for the U.S. Army 
Abrams Tank sustainment, as well as for certain Abrams Tank customers outside North America. Additionally, we 
sell parts kits to licensees for the production of transmissions for tracked vehicles manufactured outside North 
America, and our defense products are in approximately 110 countries around the world. See Part I, Item 1A, “Risk 
Factors” of this Annual Report on Form 10-K for a discussion of risks associated with our contracts with the DOD. 

Globally, we face competition primarily from Renk AG/Renk America, SAPA S.p.A, S&T Dynamics and 
QinetiQ Group plc for supply of tracked vehicle transmissions. Additionally, we face competition from ZF and AM 
General in certain defense wheeled vehicles using automatic transmissions and numerous manual transmission 
suppliers. 

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Service Parts, Support Equipment and Other 

Our service parts, support equipment and other end market is comprised of: Allison-branded service parts and 

transmission fluids, aluminum die cast components, extended transmission coverage, remanufactured 
transmissions, royalties, saleable engineering and support equipment. The aftermarket provides us with a relatively 
stable source of revenues as the installed base of vehicles and equipment utilizing our solutions continues to grow. 
The need for replacement parts is driven by normal vehicle and equipment maintenance requirements. 
Uninterrupted operation is generally critical for end users’ profitability. In addition, in 2019 we began selling 
aluminum die casting components following our acquisition of Walker Die Casting. 

The sale of Allison-branded parts and fluids, remanufactured transmissions and support equipment is 
fundamental to our brand promise. We have assembled a worldwide network of approximately 1,400 independent 
distributor and dealer locations to sell, service and support our solutions. As part of our brand strategy, our 
distributors and dealers are required to sell genuine Allison-branded parts. Within the aftermarket, we offer 
remanufactured transmissions under our ReTran brand, which provides a cost-effective alternative for transmission 
repairs and replacements. We also provide support equipment to our OEMs to assist in installing new Allison 
solutions into vehicles, and, therefore, sales of support equipment are dependent upon sales of new solutions. The 
competition for service parts and ReTran transmissions comes from a variety of smaller-scale companies sourcing 
non-genuine “will-fit” parts from unauthorized manufacturers. These “will-fit” parts often do not meet our product 
specifications, and therefore may be of lesser quality than genuine Allison parts. 

Our Product Offerings 

Allison transmissions and electric propulsion solutions are sold under the Allison Transmission brand name 

and remanufactured transmissions are sold under the ReTran brand name. The following is a summary of our 
product lines. 

  On-Highway Products 

Product 
1000 Series 

2000 Series 

3000 Series 

4000 Series 

eGen Flex Electric Hybrid Propulsion 
Solutions 
eGen Power Fully Electric Propulsion 
Solutions 

Distribution 
Motorhome 
Refuse 
School and Shuttle Bus 
Distribution 
Motorhome 
Refuse 
School and Shuttle Bus 
Day Cab Tractors 
Coach and Transit Bus 
Construction 
Distribution 
Fire and Emergency 
Articulated Dump Truck 
Day Cab Tractors 
Coach and Transit Bus 
Construction 
Distribution 
Transit and Shuttle Bus 

Applications 

Services 
Specialty 
Wheeled Defense 

Services 
Specialty 
Wheeled Defense 

Motorhome 
Refuse 
Services 
Specialty 
Wheeled Defense 
Fire and Emergency 
Motorhome 
Refuse 
Specialty 
Wheeled Defense 

Coach and Transit Bus 
School and Shuttle Bus 

 Trucks 

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  Off-Highway Products 

Product 
5000 Series 

6000 Series 

8000 Series 

9000 Series 

Applications 

Rigid and Articulated Dump Truck 
Underground Mine Truck 
Well Service Rigs 
Rigid and Articulated Dump Truck 
Underground Mine Truck 
Well Service Rigs 
Hydraulic Fracturing Equipment 
Rigid Dump Trucks 
Hydraulic Fracturing Equipment 
Rigid Dump Trucks 

  Defense Products 

Product 
X200 
3040MX 
X1100 

Product Development and Engineering 

Applications 

  Tracked Vehicles 
  Tracked Vehicles 
  Tracked Vehicles 

We maintain product development and engineering capability dedicated to the design, development, 

refinement and support of our fully automatic transmissions and electric hybrid and fully electric propulsion systems. 
We believe our customers expect our products to provide unparalleled performance and value defined in various 
ways, including delivering maximum cargo in minimum time, using the least amount of fuel possible while employing 
the fewest vehicles possible and experiencing maximum vehicle uptime. In response to those needs and the 
evolving customer focus on fuel efficiency and reduced emissions, we provide vehicle specification guidelines, 
propulsion control software and mechanical components to optimize fuel economy while delivering desired vehicle 
performance.  

Further, we are developing new technology to improve fuel efficiency and fuel economy by allowing engines to 

operate more efficiently and at lower speeds to avoid consuming fuel without compromising performance. Some 
examples of these development efforts include the announcements of our first 9-speed transmission and the 
uprated variant of our existing 3000 Series transmission for the on-highway day cab tractor end-market. We also 
pioneered electric hybrid-propulsion in commercial vehicles and beginning in 2019, we announced our fully electric 
propulsion solutions. Building on our existing engineering capabilities and technology acquired in 2019 we continue 
to enhance our existing electric hybrid-propulsion system with additional electrification features, including our eGen 
Flex product which has the ability to operate in electric only mode for up to 10 miles. We also continue to develop 
and enhance new alternative technologies for use in our global commercial vehicle markets, including fully electric 
centrally-located drive and electrified-axle solutions such as our eGen Power family of products. Finally, our product 
development and engineering efforts also extend into our Off-Highway and Defense end-markets through initiatives 
to develop more efficient and higher-horsepower hydraulic fracturing and mining transmissions such as FracTran 
and TerraTran, as well as new cross-drive transmissions for tracked applications, such as the Next Generation 
Electrified Transmission that enables electric hybrid propulsion and electric only silent maneuverability. From time to 
time, we also acquire certain licenses to provide us with technology to complement our portfolio of products and 
product initiatives. 

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Sales and Marketing Organization 

Our sales and marketing effort is organized along geographic and customer lines and is comprised of 

marketing, sales and service professionals, supported by application engineers worldwide. In North America, selling 
efforts in the on-highway end market are organized by distributor area responsibility, OEM sales and, for our large 
end users, national accounts. Outside North America, we manage our sales, marketing, service and application 
engineering professionals through regional areas of responsibility. These regional management teams distribute 
OEM service and application engineering resources globally. We manage our defense products sales, marketing 
and service geographically with North America and Outside North America sales supported by and application 
engineering through professionals based in Indianapolis, Indiana. 

We have developed a marketing strategy to reach OEM customers as well as end users. We target our end 

users primarily through marketing activities by our sales staff, who directly call on end users and attend local trade 
shows, targeting specific vocations globally and through our plant tour programs, where end users may test our 
products on our Indianapolis test track and our enhanced customer experience demonstration track at our Hungary 
facility. 

While our marketing management uses the term “customer” interchangeably for OEMs and end users, the 

primary objective of our marketing strategy is to create demand for propulsion solutions through: 

(cid:120)  OEM  promotion  of  our  products  and  incorporation  of  our  propulsion  solutions  in  their  commercial  vehicle 

product offerings; 

(cid:120)  Allison representative and/or Allison distributor contact with identified, major end users; and 
(cid:120)  Our network of independent dealers who contact other end users. 

The process is interactive, as Allison representatives, Allison distributors, OEMs and dealers educate 

customers and respond to the specific applications, requirements and needs of numerous specialty markets. 

Similarly, we work with customers, dealers and OEMs to educate, improve and simplify how they specify 
vehicles and vehicle systems in order to optimize vehicle performance and fuel consumption. Our field organization 
also works closely with distributors who, in turn, work with dealers to provide end users with education, parts, 
service and warranty support. The defense group focuses on industry OEMs and collaborative dialogue with OEMs 
and government leaders to understand program requirements and determine our long-term product development 
strategy. 

Manufacturing 

Our manufacturing strategy provides for distributed capability in manufacturing and assembly of our products 

for the global commercial vehicle market. Our primary manufacturing facilities, located in Indianapolis, Indiana, 
consist of approximately 2.3 million square feet of usable manufacturing space in six plants. We also have 
established customization and parts distribution in the United States, The Netherlands, Brazil, China, Hungary, India 
and Japan. Our high volume on-highway products are produced in multiple global locations (United States, 
Chennai, India and Szentgotthard, Hungary), while off-highway, electric hybrid propulsion and defense tracked 
products are produced in Indianapolis and fully electric propulsion solutions are produced in Auburn Hills, Michigan. 
In addition, our aluminum die cast components are produced in Lewisburg, Tennessee. 

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Suppliers and Raw Materials 

A significant amount of the part numbers that make up our propulsion solutions are purchased from outside 

suppliers, and during 2021, we purchased approximately $851 million of direct materials and components from 
outside suppliers. The largest elements of our direct spending are aluminum and steel castings and forgings that 
are formed by our suppliers into our larger components and assemblies for use in our propulsion solutions. Our 
spending on aluminum and steel raw materials directly and indirectly through our purchase of these components 
constituted approximately 20% of our direct material and component costs in 2021. The balance of our direct and 
indirect materials and components costs are primarily composed of value-added services and conversion costs. Our 
supply contracts, along with an intensive supplier selection and performance monitoring process, have enabled us 
to establish and maintain close relationships with suppliers and have contributed to our overall operating efficiency 
and quality. 

Intellectual Property 

Patents, trademarks, and other proprietary rights are important to the continued success of our business. We 
also rely upon trade secrets, know-how, continuing technological innovation and licensing opportunities to develop 
and maintain our competitive position. We protect our proprietary rights through a variety of methods, including 
confidentiality agreements and proprietary information agreements with suppliers, employees, consultants and 
others who may have access to our proprietary information. We own and have licensing arrangements for a number 
of U.S. and foreign patents related to our products and business. We do not consider our business to be dependent 
on any single patent, nor will the expiration of any single patent materially affect our business. Our current patents 
will expire over various periods and we continue to file new patent applications on newly-developed technology. 

Seasonality 

Overall, the demand for our products is relatively consistent over the year. However, in typical market 

conditions, the North American truck market experiences a higher level of production in the first half of the year due 
to fewer holidays and the practice of plant shutdowns in July and December. Due to ongoing supply chain and labor 
constraints caused by the COVID-19 pandemic, demand for our products may not align with the demand we have 
experienced during typical market conditions. 

Human Capital 

At Allison, we believe in the power of our people, our processes and our products. For more than 100 years, 

we have built our business on these values: Quality, Customer Focus, Integrity, Innovation, and Teamwork. We use 
a variety of human capital measures in managing our business, including: workforce demographics; inclusion and 
diversity; and employee health and safety. 

Workforce Demographics. Our people continue to be a critical component in our continued success, the 
delivery of our values and the execution of our growth initiatives. As of December 31, 2021, we had a highly skilled 
workforce of approximately 3,400 employees, with approximately 90% of those employees in the U.S. 
Approximately 46% of our U.S. employees are represented by the International Union, United Automobile, 
Aerospace and Agricultural Implement Workers of America (“UAW”) and are subject to a collective bargaining 
agreement. In December 2017, we entered into a six-year collective bargaining agreement with UAW Local 933 that 
expires in November 2023. There have been no strikes or work stoppages due to Allison-specific issues in over 30 
years. 

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Inclusion and Diversity. Allison recognizes the power of different thought, accepts and respects each 

individual and strives to create an inclusive workplace where everyone can reach their full potential, driving 
innovation and business results. Our inclusion and diversity efforts in 2021 included the participation by 
approximately 1,000 employees in unconscious bias training, continuing our speaker series to facilitate dialogue 
about inclusion and diversity, continuing to increase our focus on the recruitment of underrepresented groups 
including by participating in career fairs with Historically Black Colleges and Universities, Hispanic institutions, 
veterans and people with disabilities and establishing a virtual mentoring program to connect team members from 
different offices, departments and backgrounds. 

Employee Health & Safety. Allison’s overriding priority is to protect the health and safety of each employee. 

As part of our health and safety programs, employees participate in training focused on this topic and metrics are 
reviewed regularly, including the number of injury incidents that occur and those incidents that result in lost work 
days. For 2021, we achieved an overall recordable rate of 1.94, meaning that for every 100 employees, 1.94 
employees incurred an injury that resulted in recordable medical treatment and the number of lost work days was 
0.53, meaning that for every 100 employees, 0.53 individuals experienced an incident that resulted in days away 
from work. 

Government Regulations 

We are subject to a variety of federal, state, local and foreign laws and regulations, including those governing 
the discharge of pollutants into the air or water, the management and disposal of hazardous substances or wastes, 
and the cleanup of contaminated sites. Some of our operations require environmental permits and controls to 
prevent and reduce air and water pollution. These permits are subject to modification, renewal and revocation by 
issuing authorities. In addition, certain of our products and our customer’s products are subject to certification 
requirements by a variety of regulatory bodies. We believe we are in substantial compliance with all material 
environmental laws and regulations applicable to our plants and operations. Historically, our annual costs of 
achieving and maintaining compliance with environmental, health and safety requirements have not been material 
to our financial results. 

Increasing global efforts to control emissions of carbon dioxide, methane, ozone, nitrogen oxide and other 

greenhouse gases and pollutants, as well as the shifting focus of regulatory efforts towards total emissions output, 
have the potential to impact our facilities, costs, products and customers. The U.S. Environmental Protection 
Agency (“EPA”) has taken action to control greenhouse gases from certain stationary and mobile sources. In 
addition, several states have taken steps, such as adoption of cap and trade programs or other regulatory systems, 
to address greenhouse gases. There have also been international efforts seeking legally binding reductions in 
emissions of greenhouse gases. These developments and further actions that may be taken in the U.S. and in other 
countries, states or provinces could affect our operations both positively and negatively (e.g., by affecting the 
demand for or suitability of some of our products). 

We also may be subject to liability as a potentially responsible party under the Comprehensive Environmental 

Response, Compensation and Liability Act and similar state or foreign laws for contaminated properties that we 
currently own, lease or operate or that we or our predecessors have previously owned, leased or operated, and 
sites to which we or our predecessors sent hazardous substances. Such liability may be joint and several so that we 
may be liable for more than our share of any contamination, and any such liability may be determined without 
regard to causation or knowledge of contamination. We or our predecessors have been named potentially 
responsible parties at contaminated sites from time to time. We do not anticipate our liabilities relating to 
contaminated sites will be material to our financial results. 

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Competition 

We compete on the basis of product performance, quality, price, distribution capability, service and fuel 
efficiency, in addition to other factors. We face competition from numerous manufacturers of various types of 
propulsion solutions for commercial vehicles. Furthermore, we face an increasing amount of competition from 
vertical integration, as some of our customers are OEMs that manufacture propulsion solutions for their own 
products. Despite their propulsion solutions manufacturing capabilities, we believe that our existing OEM customers 
have chosen to purchase certain propulsion solutions from us due to the quality, reliability and strong brand of our 
propulsion solutions and in order to limit fixed costs, minimize production risks and maintain company focus on 
commercial vehicle design, production and marketing. 

Corporate Information 

Allison Transmission Holdings, Inc. was incorporated in Delaware on June 22, 2007. Our principal executive 
offices are located at One Allison Way, Indianapolis, IN 46222 and our telephone number is (317) 242-5000. Our 
internet address is www.allisontransmission.com. We file annual, quarterly and current reports, proxy statements 
and other documents with the United States Securities and Exchange Commission (“SEC”), under the Securities 
Exchange Act of 1934, as amended (the “Exchange Act”). These periodic and current reports and all amendments 
to those reports are available free of charge on the investor relations page of our website at 
http://ir.allisontransmission.com as soon as reasonably practicable after we electronically file them with, or furnish 
them to, the SEC. We have included our website address throughout this filing as textual references only. The 
information contained on, or accessible through, our website is not incorporated into this Annual Report on Form 
10-K. The SEC also maintains an Internet site that contains reports, proxy and information statements, and other 
information regarding issuers that file electronically with the SEC at http://www.sec.gov.

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ITEM 1A. Risk Factors 

The following is a cautionary discussion of risks, uncertainties and assumptions that we believe are material 

to our business. In addition to the factors discussed elsewhere in this Annual Report on Form 10-K, the following 
are the material factors that, individually or in the aggregate, we believe could make our actual results differ 
materially from those described in any forward-looking statements. 

Risks Related to Our Business and Operations 

We  participate  in  markets  that  are  competitive,  and  our  competitors’  actions  could  have  a  material 
adverse effect on our business, results of operations and financial condition. 

Our business operates in competitive markets. We compete against other existing or new global 

manufacturers of transmissions and propulsion solutions for commercial vehicles on the basis of product 
performance, quality, price, distribution capability, service and fuel efficiency in addition to other factors. In addition, 
we compete with manufacturers developing alternative technologies, including fully electric propulsion solutions, 
that may or may not require a transmission. In addition, regulations enacted and subsidies offered by governmental 
entities continue to drive the development and adoption of various alternative technologies, including electric 
propulsion solutions. If the pace of adoption of electric vehicles proceeds faster than we are anticipating, we may 
not be in a position to meet customer demand or our competitors may be better positioned to meet customer 
demand, which may result in a decline in our market share or negatively impact our ability to execute our growth 
initiatives. Actions by our competitors or accelerated adoption of electric vehicles, in particular if our competitors are 
able to develop, validate and release new technologies more quickly than we do, could also lead to downward 
pressure on prices and/or a decline in our market share, either or both of which could adversely affect our results. 

In addition, some of our customers or future customers are OEMs that manufacture or could in the future 

manufacture transmissions, propulsion solutions or alternate technologies, including electric propulsion solutions, 
for their own products. Despite their manufacturing capabilities, our existing OEM customers have chosen to 
purchase certain transmissions and propulsion solutions from us due to customer demand, resulting from the quality 
of our products and in order to reduce fixed costs, eliminate production risks and maintain company focus. 
However, we cannot be certain these customers will continue to purchase our products in the future. Increased 
levels of production insourcing by these customers could result from a number of factors, such as shifts in our 
customers’ business strategies, acquisition by a customer of another transmission or propulsion solution 
manufacturer, the inability of third-party suppliers to meet specifications and the emergence of low-cost production 
opportunities in foreign countries. As a result, these OEMs may use products produced internally or by another 
manufacturer and no longer choose to purchase products from us. A significant reduction in the level of external 
sourcing by our OEM customers could significantly impact our net sales and cash flows and, accordingly, have a 
material adverse effect on our business, results of operations and financial condition. 

Our financial condition and results of operations have been and may continue to be materially adversely 
affected by the coronavirus pandemic. 

The global spread of the novel strain of coronavirus (COVID-19) that has been declared a pandemic by the 

World Health Organization and the preventative measures taken to contain or mitigate the outbreak have caused, 
and are continuing to cause, significant volatility and uncertainty and economic disruptions. Governments around 
the world continue to implement measures to contain or mitigate the spread of the virus, including vaccine and 
testing mandates, quarantines, “shelter in place” and “stay at home” orders, travel restrictions, business 
curtailments and other measures, due to the ongoing pandemic. While we continue to operate our plants consistent 
with applicable government guidelines, we may experience production shutdowns or slowdowns at our 
manufacturing facilities as a result of government orders, our inability to obtain component parts from suppliers, 

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labor shortages or decreased customer production schedules. In addition, many of our suppliers and customers 
have experienced, and may continue to experience, production slowdowns and/or shutdowns, as a result of 
government orders and supply chain, raw material, labor and logistics constraints, which have impacted, and may 
continue to impact, our business, sales and results of operations. 

The effects of the COVID-19 pandemic on the global economy had a material impact on demand for our 
products and our results of operations during 2021. While we continued to experience a recovery in demand for our 
products during 2021, ongoing supply chain, labor, raw material, freight and logistics constraints have negatively 
impacted, and may continue to negatively impact, the sales of our products, expenses and our results of operations. 
In addition, future pandemic-related impacts on the global economy, including inflation, may continue to adversely 
impact our business and results of operations. The extent to which the COVID-19 pandemic may continue to 
adversely impact our business depends on future developments, which are highly uncertain and unpredictable, 
including the severity and duration of the outbreak, emerging variants of the virus that may be more contagious than 
current variants and the effectiveness of actions taken globally to contain or mitigate its effects, including the 
availability, pace of distribution, acceptance of and effectiveness of vaccines. In addition, vaccine or testing 
mandates adopted by the U.S. or other governments in order to combat the pandemic may result in additional labor 
shortages and/or increased costs for us or our suppliers and customers that may have a material impact on our 
business. Any future financial impact cannot be estimated reasonably at this time, but may materially adversely 
affect our business, supply chain, sales, results of operations, financial condition and cash flows. Even after the 
COVID-19 pandemic has subsided, we may experience materially adverse impacts to our business due to any 
resulting economic recession or depression that may continue to impact customer demand and the financial 
instability or operating viability of our suppliers and customers. Additionally, concerns over the economic impact of 
COVID-19 have caused extreme volatility in financial and other capital markets which may adversely impact our 
ability to access capital markets. 

Increases in cost, disruption of supply or shortage of raw materials or components used in our products 
could harm our business and profitability. 

Our products contain various raw materials, including corrosion-resistant steel, non-ferrous metals such as 

aluminum and nickel, and precious metals such as platinum and palladium. We use raw materials directly in 
manufacturing and in components that we purchase from our suppliers. We generally purchase components with 
significant raw material content on the open market. The prices for and availability of these raw materials fluctuate 
depending on market conditions. Volatility in the prices of raw materials such as steel, aluminum and nickel could 
increase the cost of manufacturing our products. Additionally, our suppliers are also subject to fluctuations in the 
prices of raw materials and may attempt to pass all or a portion of such increases on to us. In the event they are 
successful in doing so, our margins would decline. Temporary industry-wide shortages of raw materials have 
occurred in 2021, which has led to increased raw material price volatility and cost increases which could continue 
into 2022. We may not be able to pass on these costs to our customers, and this could have a material adverse 
effect on our business, results of operations and financial condition. Even in the event that increased costs can be 
passed through to customers, our gross margin percentages would decline as the recovery of these costs from 
customers generally lags six to twelve months. 

In 2021, approximately 75% of our total spending on components was sourced from approximately 40 
suppliers, many of which are the single source for such components. All of the suppliers from which we purchase 
materials and components used in our business are fully validated suppliers, meaning the suppliers’ manufacturing 
processes and inputs have been validated under a production part approval process (“PPAP”). Furthermore, there 
are only a limited number of suppliers for certain of the materials used in our business, such as corrosion-resistant 
steel. As a result, our business is subject to the risk of additional price fluctuations and periodic delays in the 
delivery of our materials or components if supplies from a validated supplier are interrupted and a new supplier, if 

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one is available, must be validated or materials and components must be purchased from a supplier without a 
completed PPAP, which could increase our risk of purchasing non-conforming components. Any such price 
fluctuations or delays, if significant, could harm our profitability or operations. In addition, the loss of a supplier could 
result in significant material cost increases or reduce our production capacity. We have experienced, and expect to 
continue to experience, delays in the availability and receipt of raw materials and component parts as a result of the 
COVID-19 pandemic, some of which may materially impact our ability to meet customer demand. We also cannot 
guarantee we will be able to maintain favorable arrangements and relationships with these suppliers. An increase in 
the cost or a sustained interruption in the supply or shortage of some of these raw materials or components that 
may be caused by a deterioration of our relationships with suppliers or by events such as natural disasters and 
extreme weather events which may increase in frequency and intensity as a result of climate change, power 
outages, labor strikes and public health crisis such as pandemics and epidemics or the like could negatively impact 
our business, results of operations and financial condition. Although we have agreements with many of our 
customers that we will pass such price increases through to them, such contracts may be canceled by our 
customers and/or we may not be able to recoup the costs of such price increases. Additionally, if we are unable to 
continue to purchase our required quantities of raw materials on commercially reasonable terms, or at all, if we are 
unable to maintain or enter into purchasing contracts for commodities, or if delivery of materials or component parts 
from suppliers is delayed or non-conforming, our operations could be disrupted, we may not be able to meet 
customer demand, and our profitability and our financial results may be materially impacted. 

Labor cost inflation, employee attraction and retention or labor unrest could have an adverse effect on 
our business, results of operations and financial condition. 

As of December 31, 2021, approximately 46% of our U.S. employees, representing approximately 42% of our 

total employees, were represented by the UAW and are subject to a collective bargaining agreement. Our current 
collective bargaining agreement with UAW Local 933 is effective through November 2023. In addition to our 
unionized work force, many of our direct and indirect customers and vendors have unionized work forces. Strikes, 
work stoppages or slowdowns experienced by these customers or vendors or their other suppliers could result in 
slowdowns or closings of assembly plants that use our products or supply materials for use in the production of our 
products. Organizations responsible for shipping our products may also be impacted by strikes. Any interruption in 
the delivery of our products could reduce demand for our products and could have a material adverse effect on us. 

In general, we consider our labor relations with all of our employees to be good. However, in the future we 

may be subject to labor unrest. If strikes, work stoppages or lock-outs at our facilities or at the facilities of our 
vendors or customers occur or continue for a long period of time, our business, results of operations and financial 
condition may be materially adversely affected. 

Our success depends on our ability to identify, recruit and retain highly skilled, qualified personnel, and there 

is currently increased competition for talent. We have experienced labor shortages and wage inflation amid low 
levels of unemployment and workforce availability. As a result, we may not be able to attract and retain qualified 
personnel, which may impact our ability to manufacture, design and develop our propulsion solutions and to 
compete effectively. In addition, we may continue to experience increased labor costs, which may impact our results 
of operations.  

Prolonged inflation could result in higher costs and decreased margins and earnings. 

Recent inflationary pressures have resulted in increased raw material, labor, energy, freight and logistics 

expenses and other costs, which, if they continue for a prolonged period, may adversely affect our results of 
operations. If our costs are subject to continuing significant inflationary pressures, we may not be able to fully offset 
such higher costs through price increases. Our inability to do so could harm our results of operation. 

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Volatility  in  and  disruption  to  the  global  economic  environment  and  changes  in  the  regulatory  and 
business environments in which we operate may have a material adverse effect on our business, results 
of operations and financial condition. 

The commercial vehicle industry as a whole has been more adversely affected by volatile economic conditions 

than many other industries, as the purchase or replacement of commercial vehicles, which are durable items, can 
be deferred for many reasons, including reduced spending by end users. Future changes in the regulatory and 
business environments in which we operate, including increased trade protectionism and tariffs, may adversely 
affect our ability to sell our products or source materials needed to manufacture our products. Furthermore, financial 
instability or bankruptcy at any of our suppliers or customers could disrupt our ability to manufacture our products 
and impair our ability to collect receivables, any or all of which may have a material adverse effect on our business, 
results of operations and financial condition. In addition, some of our customers and suppliers may experience 
serious cash flow problems and, thus, may find it difficult to obtain financing, if financing is available at all. As a 
result, our customers’ need for and ability to purchase our products or services may decrease, and our suppliers 
may increase their prices, reduce their output or change their terms of sale. Any inability of customers to pay us for 
our products and services, or any demands by suppliers for different payment terms, may materially and adversely 
affect our results of operations and financial condition. Furthermore, our suppliers may not be successful in 
generating sufficient sales or securing alternate financing arrangements, and therefore may no longer be able to 
supply goods and services to us. In that event, we would need to find alternate sources for these goods and 
services, and there is no assurance we would be able to find such alternate sources on favorable terms, if at all. 
Any such disruption in our supply chain could adversely affect our ability to manufacture and deliver our products on 
a timely basis, and thereby affect our results of operations. 

Certain  of  our  end  users  operate  in  highly  cyclical  industries,  which  can  result  in  uncertainty  and 
significantly  impact  the  demand  for  our  products,  which  could  have  a  material  adverse  effect  on  our 
business, results of operations and financial condition. 

Some of the markets in which we operate, including energy, mining, construction, distribution and 
motorhomes, exhibit a high degree of cyclicality. Decisions to purchase our products are largely a result of the 
performance of these and other industries we serve. If demand for output in these industries decreases, the 
demand for our products will likely decrease. Demand in these industries is impacted by numerous factors including 
prices of commodities, rates of infrastructure spending, housing starts, real estate equity values, interest rates, 
consumer spending, fuel costs, energy demands, municipal spending, commercial construction and global 
pandemics, among others. Increases or decreases in these variables globally may significantly impact the demand 
for our products, which could have a material adverse effect on our business, results of operations and financial 
condition. If we are unable to accurately predict demand, we may be unable to meet our customers’ needs, resulting 
in the loss of potential sales, or we may manufacture excess products, resulting in increased inventories and 
overcapacity in our production facilities, increasing our unit production cost and decreasing our operating margins. 

Our sales are concentrated among our top five OEM customers and the loss or consolidation of any one 
of  these  customers  or  the  discontinuation  of  particular  vehicle  models  for  which  we  are  a  significant 
supplier could reduce our net sales and have a material adverse effect on our results of operations and 
financial condition. 

We have in the past and may in the future derive a significant portion of our net sales from a relatively limited 
number of OEM customers. For the years ended December 31, 2021, 2020 and 2019, our top five OEM customers 
accounted for approximately 52%, 53% and 54% of our net sales, respectively. Our top three customers, Daimler 
AG, PACCAR Inc. and Traton SE (includes Navistar International Corporation as of December 31, 2021) accounted 
for approximately 20%, 10% and 10%, respectively, of our net sales during 2021. The loss of, or consolidation of, 
any one of these customers, or a significant decrease in business from, one or more of these customers could harm 

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our business. In addition, the discontinuation of particular vehicle models for which we are a significant supplier 
could reduce our net sales and have a material adverse effect on our results of operations. 

Our sales to the Defense end market are to government entities and contractors for the U.S. and foreign 
governments,  and  the  loss  of  a  significant  number  of  our  contracts,  or  budgetary  declines  or  future 
reductions or changes in spending by the U.S. or foreign governments could have a material adverse 
effect on our results of operations and financial condition. 

Our net sales to the Defense end market are derived from contracts (revenue arrangements) with agencies of, 

and prime system contractors for, the U.S. government and foreign governments. If a significant number of our 
Defense contracts and subcontracts are simultaneously delayed or cancelled for budgetary, performance or other 
reasons, it would have a material adverse effect on our results of operations and financial condition. Approximately 
8%, or $186 million, of our net sales for the year ended December 31, 2021 were from our Defense end market. 
Our future financial results may be adversely affected by: 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

declines in, or uncertainty regarding, U.S. or foreign government defense budgets; 

curtailment of the U.S. government’s use of technology or other services and product providers, 
including curtailment due to government budget reductions, future government shutdowns and related 
fiscal matters; 

geopolitical developments, including economic sanctions, that affect demand for our products and 
services; 

technological developments that impact purchasing decisions or our competitive position; and 

increased regulatory requirements for defense contractors. 

 Our  brand  and  reputation  are  dependent  on  the  continued  participation  and  level  of  service  of  our 
numerous independent distributors and dealers. 

We work with a network of approximately 1,400 independent distributors and dealers that provide post-sale 
service, service parts and support equipment. Because we depend on the pull-through demand generated by end 
users for our products, any actions by the independent distributors or dealers, which are not in our control, may 
harm our reputation and damage the brand loyalty among our customer base. In the event that we are not able to 
maintain our brand reputation because of the actions of our independent distributors and dealers, we may face 
difficulty in maintaining our pricing positions with respect to some of our products or have reduced demand for our 
products, which could negatively impact our business, results of operations and financial condition. In addition, if a 
significant number of independent dealers were to terminate their contracts, it could adversely impact our business, 
results of operations and financial condition. 

We are subject to cybersecurity risks to operational systems, security systems, or infrastructure owned 
by Allison or third-party vendors or suppliers. 

We are at risk for interruptions, outages, and breaches of: (i) operational systems, including business, 

financial, accounting, product development, data processing, or manufacturing processes, owned by us or our third-
party vendors or suppliers; (ii) facility security systems, owned by us or our third-party vendors or suppliers; and/or 
(iii) vehicle propulsion control modules or other in-product technology, owned by us or our third-party vendors or 
suppliers. Such cyber incidents could materially disrupt operational systems; result in loss of intellectual property, 
trade secrets or other proprietary or competitively sensitive information; compromise personally identifiable 
information of employees, customers, suppliers, or others; jeopardize the security of our facilities; and/or affect the 
performance of vehicle propulsion control modules or other in-product technology. A cyber incident could be caused 
by malicious third parties using sophisticated, targeted methods to circumvent firewalls, encryption, and other 
security defenses, including hacking, fraud, trickery, or other forms of deception. The techniques used by third 

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parties change frequently and may be difficult to detect for long periods of time. A significant cyber incident could 
impact production capability, harm our reputation and/or subject us to regulatory actions or litigation, any of which 
could materially affect our business, results of operations and financial condition. While we utilize a number of 
measures to prevent, detect and mitigate these threats, including employee education, monitoring of networks and 
systems, and maintenance of backup and protective systems, there is no guarantee such efforts will be successful 
in preventing a cyber incident.  

In the event of a catastrophic loss of our key manufacturing facility, our business would be adversely 
affected. 

While we manufacture our products in several facilities and maintain insurance covering our facilities, including 

business interruption insurance, a catastrophic loss of the use of all or a portion of one of our manufacturing 
facilities due to accident, labor issues, weather conditions, acts of war, political unrest, terrorist activity, natural 
disaster or extreme weather events, which may increase in frequency and intensity as a result of climate change, 
public health crisis, such as pandemics and epidemics or otherwise, whether short- or long-term, would have a 
material adverse effect on our business, results of operations and financial condition. Our most significant 
concentration of manufacturing is around our corporate headquarters in Indianapolis, Indiana, where we produce 
approximately 90% of our transmissions. In addition to our Indianapolis manufacturing facilities, we currently 
operate manufacturing facilities for our fully electric propulsion solutions in Auburn Hills, Michigan, for our 
transmissions in both Szentgotthard, Hungary and Chennai, India and for our aluminum die cast components in 
Lewisburg, Tennessee. In the event of a disruption at the Indianapolis facilities, our other facilities may not be 
adequately equipped to operate at a level sufficient to compensate for the volume of production at the Indianapolis 
facility due to their size and the fact that they have not yet been tested for such significant increases in production 
volume. 

Strategic Risks 

Our success depends on research and development efforts, and we may not be successful in developing 
or introducing new products and technologies and responding to customer needs. 

Our success depends on our ability to develop or introduce new products and technologies and improve the 

efficiency and performance of our current products, and we invest significant resources in research and 
development in order to do so. We currently have enhancements to our existing products and technologies and new 
products and technologies under development, including electric hybrid and fully electric propulsion solutions, for 
planned introduction into certain end markets. The development of new products and technologies is difficult, time-
consuming and costly and the timetable for commercial release is uncertain. Not all of our new product launches 
have been successful, and we may not be successful in the future in introducing other new products and 
responding to customer needs. In addition, it often takes significant time, in some cases multiple fleet buy cycles, 
before customers gain experience with new products and technologies and those new products and technologies 
become widely-accepted by the market, if at all. Given the early stages of development of some of these new 
products and technologies, there can be no guarantee of future market acceptance and investment returns with 
respect to these products. In addition, the increased adoption of electric propulsion solutions could result in lower 
demand for our fully automatic transmissions and, over time, the demand for related service parts and support 
equipment, which would impact our margins. If we do not adequately anticipate the changing needs of our 
customers by keeping pace with improvements and changes in vehicle propulsion technology and developing and 
introducing new and effective products and technologies on a timely basis, or if the products and technologies we 
develop do not become market-leading, our competitive position and prospects could be harmed. If our competitors 
are able to respond to changing market demands and adopt new technologies more quickly than we do, demand for 
our products could decline, our competitive position could be harmed, our future research and development 

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activities may be constrained due to intellectual property rights of others, licenses for technologies that would 
enable us to keep pace with our competitors may not be available on commercially reasonable terms if at all and we 
may not be able to recoup a return on our development investments. Moreover, changing customer demands as 
well as evolving regulatory, safety and environmental standards could require us to adapt our products and 
technologies to address such changes. As a result, in the future we may experience delays in the introduction of 
some or all of our new products or modifications or enhancements of existing products. Furthermore, there may be 
production delays due to unanticipated technological setbacks, which may, in turn, delay the release of new 
products to our end users. If increased regulatory or environmental standards cause the rate of adoption of new 
technologies, including electric vehicles for the medium- and heavy-duty commercial market, to occur at a pace that 
is faster than we are anticipating, we may not have products available to meet that accelerated timeframe. If we 
experience significant delays or increased costs in the production, launch or acceptance of our products and 
technologies, our net sales and results of operations may be materially adversely affected. 

Our long-term growth prospects and results of operations may be impaired if the rate of adoption of fully 
automatic transmissions in commercial vehicles outside North America does not increase. 

Our long-term growth strategy depends in part on an increased rate of automaticity outside North America. As 

part of that strategy, we have established manufacturing facilities in India and Hungary. We have also dedicated 
significant human resources to serve markets where we anticipate increased adoption of automaticity, including 
China, India, Brazil and Russia. However, manual transmissions remain the market leader outside North America 
and there can be no assurance that adoption of automatic transmissions will increase. Factors potentially impacting 
adoption of automatic transmissions outside of North America include the large existing installed base of manual 
transmissions, customer preferences for manual transmissions, commercial vehicle OEM vertical integration into 
manual transmission and AMT manufacturing, increased competition from AMTs, electric propulsion solutions, and 
other alternative transmission and propulsion solution technologies and failure to further develop the Allison brand. 
If the rate of adoption of fully automatic transmissions does not increase as we have anticipated, our long-term 
growth prospects and results of operations may be impaired. 

Our international operations, in particular our emerging markets, are subject to various risks which could 
have a material adverse effect on our business, results of operations and financial condition. 

Our business is subject to certain risks associated with doing business internationally, particularly in emerging 

markets. Outside-North America net sales represented approximately 24% of our net sales for 2021. Most of our 
operations are in the U.S., but we also have manufacturing and customization facilities in India and Hungary with a 
services agreement with Stellantis NV and customization capability in Brazil, The Netherlands, China and Japan. 
Further, we intend to continue to pursue growth opportunities for our business in a variety of business environments 
outside the U.S., which could exacerbate the risks set forth below. Our international operations are subject to, 
without limitation, the following risks: 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

the burden of complying with multiple and possibly conflicting laws and any unexpected changes in 
regulatory requirements; 

foreign currency exchange controls, sanctions, import and export restrictions and tariffs, including 
restrictions promulgated by the Office of Foreign Assets Control of the U.S. Department of the Treasury, 
and other trade protection regulations and measures; 

political risks, including increased trade protectionism and risks of loss due to civil disturbances, acts of 
terrorism, acts of war, guerilla activities and insurrection; 

unstable economic, financial and market conditions and increased expenses as a result of inflation or 
higher interest rates; 

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(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

difficulties in enforcement of third-party contractual obligations and intellectual property rights and 
collecting receivables through foreign legal systems; 

difficulty in staffing and managing international operations and the application of foreign labor 
regulations; 

differing local product preferences and product requirements; 

fluctuations in currency exchange rates to the extent that our assets or liabilities are denominated in a 
currency other than the functional currency of the country where we operate; 

potentially adverse tax consequences from changes in tax laws, requirements relating to withholding 
taxes on remittances and other payments by subsidiaries and restrictions on our ability to repatriate 
dividends from our subsidiaries; and 

exposure to liabilities under anti-corruption and anti-money laundering laws, including the U.S. Foreign 
Corrupt Practices Act (“FCPA”) and similar laws and regulations in other jurisdictions. 

Any one of these factors could materially adversely affect our sales of products or services to international 
customers or harm our reputation, which could have a material adverse effect on our business, results of operations 
and financial condition. 

We may not be able to identify or consummate acquisitions or partnerships or achieve expected benefits 
from or effectively integrate acquisitions or partnerships, which could harm our growth. 

From time to time we evaluate selective acquisitions, partnerships and strategic investments. Potential and 

completed acquisitions and partnerships involve many risks that could have an adverse effect on our business, 
financial condition or results of operations, including: 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

our  ability  to  identify  suitable  acquisition  or  partnership  candidates,  prevail  against  competing  potential 
acquirers or partners and negotiate and consummate acquisitions or partnerships on terms  attractive to 
us; 

difficulties in  integrating personnel and sales forces,  operations, manufacturing, logistics, research and 
development, information technology, communications, purchasing, accounting, marketing, administration 
and other systems and processes and otherwise assimilating the operations of the acquired company; 

the diversion of resources, including diverting management’s attention from our current operations; 

risks of entering new geographic or product markets in which we have limited or no direct prior experience; 

the potential loss of key customers, employees or suppliers of the acquired company or adverse effects 
on our existing business relationships with our suppliers and customers; 

the potential incurrence of indebtedness to fund the acquisition or partnerships; 

the acquired business or partnership not achieving anticipated revenues, earnings, cash flow or market 
share; 

excess capacity; 

failure to achieve the expected synergies or cost savings; 

the  need  for  additional  investments  post-investment  or  post-acquisition  that  could  be  greater  than 
anticipated; 

the impact of U.S. and foreign competition laws and regulations on our ability to make certain acquisitions, 
to enter into certain partnerships or to make certain strategic investments; 

inaccurate assessment of undisclosed, contingent or other liabilities or problems and unanticipated costs 
associated with the acquisition or partnership; 

incorrect estimates made in accounting for acquisitions, incurrence of non-recurring charges and write-off 
of significant amounts of goodwill that could adversely affect our financial results; and 

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(cid:120) 

dilution of earnings. 

We may also face liability with respect to acquired businesses for violations of environmental or other laws 

occurring prior to the date of our acquisition, and some or all of these liabilities may not be covered by 
environmental or other insurance secured to mitigate the risk or by indemnification from the sellers from which we 
acquired these businesses. We could also incur significant costs, including, but not limited to, remediation costs, 
natural resources damages, civil or criminal fines and sanctions and third-party claims, as a result of past or future 
violations of, or liabilities associated with, environmental or other laws. 

We cannot offer any assurance that we will be able to consummate any future acquisitions, strategic 
investments, partnerships or other business combinations. If we are unable to identify suitable acquisition 
candidates or to consummate and successfully integrate our recent and any future acquisitions, our business and 
results of operations may be adversely affected as a result. 

Legal and Regulatory Risks 

Any events that impact our brand name, including if the products we manufacture or distribute are found 
to be defective, could have an adverse effect on our reputation, cause us to incur significant costs and 
negatively impact our business, results of operations and financial condition. 

We face exposure to product liability claims in the event that the use of our products has, or is alleged to have, 
resulted in injury, death or other adverse effects. We currently maintain product liability insurance coverage, but we 
cannot be assured that we will be able to obtain such insurance on acceptable terms in the future, if at all, or that 
any such insurance will provide adequate coverage against potential claims. Product liability claims can be 
expensive to defend and can divert the attention of management and other personnel for long periods of time, 
regardless of the ultimate outcome. An unsuccessful product liability defense could have a material adverse effect 
on our business, results of operation, financial condition or prospects. If one of our products is determined to be 
defective, we may face substantial warranty costs and may be responsible for significant costs associated with a 
product recall or a redesign. We have had defect and warranty issues associated with certain of our products in the 
past, and we cannot give assurance similar product defects will not occur in the future. See "NOTE 10. Product 
Warranty Liabilities” of Notes to Consolidated Financial Statements included in Part II, Item 8. of this Annual Report 
on Form 10-K for additional details regarding these warranty issues. 

Furthermore, our business depends on the strong brand reputation we believe we have developed. In addition 

to the risk of defective products, we also face significant risks in our efforts to penetrate new markets, where we 
have limited brand recognition. We also rely on our reputation with end users of our products to specify our products 
when purchasing new vehicles from our OEM customers. In the event we are not able to maintain or enhance our 
brand in these new markets or our reputation is damaged in our existing markets as a result of product defects or 
recalls, we may face difficulty in maintaining our pricing positions with respect to some of our products or 
experience reduced demand for our products, which could negatively impact our business, results of operations and 
financial condition. 

Additionally, we license the “Allison Transmission” name and certain related trademarks to third parties. If any 
third party uses the trade name “Allison Transmission” in ways that adversely affect such trade name or trademark, 
our reputation could suffer damage, which in turn could have a material adverse effect on our business, results of 
operations and financial condition. 

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Many of the key patents and unpatented technology we use in our business are licensed to us, not owned 
by us, and our ability to use and enforce such patents and technology is restricted by the terms of the 
license. 

Protecting our intellectual property rights is critical to our ability to compete and succeed as a company. 
General Motors Company (“GM”) has granted us an irrevocable, perpetual, royalty-free, worldwide license under a 
large number of U.S. and foreign patents and patent applications, as well as certain unpatented technology and 
know-how, to design, develop, manufacture, use and sell fully automatic transmissions and electric hybrid 
propulsion solution for use in certain vocational vehicles, defense vehicles and off-road products. With respect to 
the bulk of the intellectual property licensed to us, our license is exclusive with respect to the design, development, 
manufacture, use and sale of fully automatic transmissions and electric hybrid propulsion solution in vocational 
vehicles above certain weight rating thresholds, certain defense vehicles and certain off-road products. It is non-
exclusive with respect to certain other products that are within the scope of the licensed patents or to which the 
licensed technology can be applied. GM continues to own such patents and technology, and GM has the right, in 
the first instance, to control the maintenance, enforcement and defense of such patents and the prosecution of the 
licensed patent applications. In addition, our ability to sublicense our rights is limited. 

We rely on unpatented technology, which exposes us to certain risks. 

We currently do, and may continue in the future to, rely on unpatented proprietary technology. In such regard, 

we cannot be assured that any of our applications for protection of our intellectual property rights will be approved 
or that others will not infringe or challenge our intellectual property rights. It is possible our competitors will 
independently develop the same or similar technology or otherwise obtain access to our unpatented technology. 
Although we believe the loss or expiration of any single patent would not have a material effect on our business, 
results of operations or financial position, there can be no assurance that any one, or more, of the patents or any 
other intellectual property owned by or licensed to us, will not be challenged, invalidated or circumvented by third 
parties. In fact, a number of the patents licensed to us are set to expire in the next few years. When a patent 
expires, the inventions it discloses can be used freely by others. Thus, the competitive advantage that we gain from 
the patents licensed to us will decrease over time, and a greater burden will be placed on our own research and 
development and licensing efforts to develop and otherwise acquire technologies to keep pace with improvements 
of transmission-related technology in the marketplace. We enter into confidentiality and invention assignment 
agreements with employees, and into non-disclosure agreements with suppliers and appropriate customers so as to 
limit access to and disclosure of our proprietary information. We cannot be assured that these measures will provide 
meaningful protection for our trade secrets, know-how or other proprietary information in the event of any 
unauthorized use, misappropriation or disclosure. If we are unable to maintain the proprietary nature of our 
technologies, our ability to sustain margins on some or all of our products may be affected, which could reduce our 
sales and profitability. Moreover, the protection provided for our intellectual property by the laws and courts of 
foreign nations may not be as advantageous to us as the protection available under U.S. law. 

Environmental,  health  and  safety  laws  and  regulations  may  impose  significant  compliance  costs  and 
liabilities on us. 

Our manufacturing operations are subject to many environmental, health and safety laws and regulations 
governing emissions to air, discharges to water, the generation, handling and disposal of waste and the cleanup of 
contaminated properties. Compliance with these laws and regulations is costly. We have incurred and expect to 
continue to incur significant costs to maintain or achieve compliance with applicable environmental, health and 
safety laws and regulations. Moreover, regulatory bodies are increasingly adopting regulations that target limiting 
greenhouse gases and combatting climate change, which may impact our ability to sell our current products or 
require us to develop new products or technologies. If these environmental, health and safety laws and regulations 
that impact our operations or products become more stringent or expand to include a larger portion of our products 

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or our customer’s products in the future, we could incur additional costs in order to ensure that our business and 
products comply with such regulations. In addition, we may not be successful in developing products or 
technologies that comply with, or the vehicle or customer OEMs to which we sell our products may choose not to 
comply with, such laws and regulations, which could impact our ability to sell our products in certain locations, 
negatively impact our business and result in a loss of market share. Furthermore, if our products that are already 
placed in service are found to be non-compliant with certain laws, regulations and certifications, we may incur 
additional costs and fines. We cannot assure that we are in full compliance with all environmental, health and safety 
laws and regulations. Our failure to comply with applicable environmental, health and safety laws and regulations 
and permit requirements could result in civil or criminal fines, penalties or enforcement actions, third-party claims for 
property damage and personal injury, requirements to clean up property or to pay for the costs of cleanup or 
regulatory or judicial orders enjoining or curtailing operations or requiring corrective measures, including the 
installation of pollution control equipment or remedial actions. Our failure to comply could also result in our failure to 
secure adequate insurance for our business, resulting in significant exposure, diminished ability to hedge our risks 
and material modifications of our business operations. 

We may be subject to liability as a potentially responsible party under the Comprehensive Environmental 

Response, Compensation and Liability Act and similar state or foreign laws for contaminated properties that we 
currently own, lease or operate or that we or our predecessors have previously owned, leased or operated, and 
sites to which we or our predecessors sent hazardous substances. Such liability may be joint and several so that we 
may be liable for more than our share of any contamination, and any such liability may be determined without 
regard to causation or knowledge of contamination. We or our predecessors have been named potentially 
responsible parties at contaminated sites from time to time. 

We manage the remediation of historical soil and groundwater contamination at our Indianapolis, Indiana 

facilities under an Agreed Order of Consent with the EPA. See Part II, Item 8., "NOTE 18. Commitments and 
Contingencies” of this Annual Report on Form 10-K. There can be no assurances that future environmental 
remediation obligations will not have a material adverse effect on our results of operations and financial condition. In 
addition, we occasionally evaluate alternatives with respect to our facilities, including possible dispositions or 
closings. Investigations undertaken in connection with these activities may lead to discoveries of contamination that 
must be remediated, and closings of facilities may trigger remediation requirements that are not applicable to 
operating facilities. We may also face lawsuits brought by third parties that either allege property damage or 
personal injury as a result of, or seek reimbursement for costs associated with, such contamination. 

Our business and financial results may be adversely affected by U.S. government contracting risks. 

We are subject to various laws and regulations applicable to parties doing business with the U.S. government, 
including laws and regulations governing performance of U.S. government contracts, the use and treatment of U.S. 
government furnished property and the nature of materials used in our products. We may be unilaterally suspended 
or barred from conducting business with the U.S. government, or become subject to fines or other sanctions if we 
are found to have violated such laws or regulations. As a result of the need to comply with these laws and 
regulations, we are subject to increased risks of governmental investigations, civil fraud actions, criminal 
prosecutions, whistleblower lawsuits and other enforcement actions. The laws and regulations to which we are 
subject include, but are not limited to, Export Administration Regulations, the Federal Acquisition Regulation, 
International Traffic in Arms Regulations and regulations from the Bureau of Alcohol, Tobacco, Firearms and 
Explosives and the FCPA. 

U.S. government contracts are subject to modification, curtailment or termination by the U.S. government 

without prior written notice, either for convenience or for default as a result of our failure to perform under the 
applicable contract. If terminated by the U.S. government as a result of our default, we could be liable for additional 
costs the U.S. government incurs in acquiring undelivered goods or services from another source and any other 

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damages it suffers. Additionally, we cannot assign prime U.S. government contracts without the prior consent of the 
U.S. government contracting officer, and we are required to register with the Central Contractor Registration 
Database. Furthermore, the U.S. government periodically audits our governmental contract costs, which could 
result in fines, penalties or adjustment of costs and prices under the contracts. The result of, or expiration of the 
statute of limitations for, such audits could have an impact on reported liabilities, net income and cash flow from 
operations. 

Provisions of our amended and restated certificate of incorporation and amended and restated bylaws 
and Delaware law might discourage, delay or prevent a change of control of our company or changes in 
our management and, as a result, depress the trading price of our common stock. 

Our amended and restated certificate of incorporation and amended and restated bylaws contain provisions 

that could discourage, delay or prevent a change in control of our company or changes in our management that the 
stockholders of our company may deem advantageous. These provisions: 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

authorize the issuance of blank check preferred stock that our Board of Directors could issue to increase 
the number of outstanding shares and to discourage a takeover attempt; 

limit the ability of stockholders to remove directors only “for cause”; 

prohibit our stockholders from calling a special meeting of stockholders; 

prohibit stockholder action by written consent, which requires all stockholder actions to be taken at a 
meeting of our stockholders; 

provide that the Board of Directors is expressly authorized to adopt, or to alter or repeal our bylaws; 

establish advance notice requirements for nominations for election to our Board of Directors or for 
proposing matters that can be acted upon by stockholders at stockholder meetings; and 

require the approval of holders of at least two-thirds of the outstanding shares of common stock to 
amend the bylaws and certain provisions of the certificate of incorporation. 

These anti-takeover defenses could discourage, delay or prevent a transaction involving a change in control of 
our company that our stockholders may believe to be in their best interests. These provisions could also discourage 
proxy contests and make it more difficult for our stockholders to elect directors of their choosing and cause us to 
take corporate actions other than those they desire. 

Risks Related to Our Indebtedness and Financial Risks 

Our indebtedness could adversely affect our financial health, restrict our activities and affect our ability 
to meet our obligations. 

As of December 31, 2021, we had total indebtedness of $2,531 million and we would have been able to 
borrow an additional $645 million, net of $5 million of outstanding letters of credit, under Allison Transmission Inc.’s 
(“ATI”), our wholly-owned subsidiary, revolving credit facility with commitments in the amount of $650 million due 
September 2025 (“Revolving Credit Facility”). As of December 31, 2021, we had no outstanding borrowings against 
the Revolving Credit Facility. At December 31, 2021, $631 million of our total indebtedness was associated with 
ATI’s term loan facility due March 2026 (“Term Loan”, and together with the Revolving Credit Facility, the “Senior 
Secured Credit Facility”), $400 million of our total indebtedness was associated with ATI’s 4.75% Senior Notes due 
October 2027 (“4.75% Senior Notes”), $500 million of our total indebtedness was associated with ATI’s 5.875% 
Senior Notes due June 2029 (“5.875% Senior Notes”) and $1,000 million of our total indebtedness was associated 
with ATI’s 3.75% Senior Notes due January 2031 (“3.75% Senior Notes”, and together with the 4.75% Senior Notes 
and 5.875% Senior Notes, the “Senior Notes”). For a complete description of the terms of the Senior Secured Credit 

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Facility and the Senior Notes, please see "NOTE 8. Debt” in Part II, Item 8., of this Annual Report on Form 10-K for 
additional information of this Annual Report on Form 10-K. 

Our indebtedness could have important consequences. For example, it could: 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

(cid:120) 

make it more difficult for us to satisfy our obligations under our indebtedness; 

require us to further dedicate a substantial portion of our cash flow from operations to payments of 
principal and interest on our indebtedness, thereby reducing the availability of our cash flow to fund 
acquisitions, working capital, capital expenditures, research and development efforts and other general 
corporate purposes; 

increase our vulnerability to and limit our flexibility in planning for, or reacting to, downturns or changes in 
our business and the industry in which we operate; 

restrict us from making strategic acquisitions or cause us to make non-strategic divestitures; 

expose us to the risk of increased interest rates as borrowings under the Senior Secured Credit Facility 
are subject to variable rates of interest; 

place us at a competitive disadvantage compared to our competitors that have less debt; and 

limit our ability to borrow additional funds. 

In addition, the Revolving Credit Facility contains a maximum total senior secured leverage ratio. The Senior 
Secured Credit Facility and the indentures governing the Senior Notes also contain other negative and affirmative 
covenants that will limit our ability to engage in activities that may be in our long-term best interests. Our failure to 
comply with any of the covenants could result in an event of default which, if not cured or waived, could result in the 
acceleration of all of our indebtedness. 

To service our indebtedness, we will  require  a  significant amount of cash,  and our ability to generate 
cash depends on many factors beyond our control. 

Our ability to make cash payments on our indebtedness and to fund planned capital expenditures will depend 

on our ability to generate significant operating cash flow in the future. This, to a significant extent, is subject to 
general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control. 

We cannot ensure that our business will generate sufficient cash flow from operations or that future 

borrowings will be available to us under the Senior Secured Credit Facility in an amount sufficient to enable us to 
pay our indebtedness or to fund our other liquidity needs. In such circumstances, we may need to refinance all or a 
portion of our indebtedness on or before maturity. We cannot ensure that we will be able to refinance any of our 
indebtedness on commercially reasonable terms or at all. If we cannot service our indebtedness, we may have to 
take actions such as selling assets, seeking additional equity or reducing or delaying capital expenditures, strategic 
acquisitions, investments and alliances. We cannot ensure that any such actions, if necessary, could be effected on 
commercially reasonable terms or at all. 

If we fail to pay principal, premium, if any, and interest on our indebtedness or to otherwise comply with 
the  covenants  in  the  instruments  governing  our  indebtedness,  we  may  be  forced  into  bankruptcy  or 
liquidation by our lenders. 

If we are unable to generate sufficient cash flow or are otherwise unable to obtain funds necessary to meet 

required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply 
with the various covenants in the instruments governing our indebtedness, we could be in default under the terms of 
the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could 
elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid 
interest, the lenders under the Senior Secured Credit Facility could elect to terminate their commitments thereunder, 

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cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into 
bankruptcy or liquidation. If our operating performance declines, we may in the future need to obtain waivers from 
the required lenders under the Senior Secured Credit Facility to avoid being in default. If we or any of our 
subsidiaries breach the covenants under the Senior Secured Credit Facility and seek a waiver, we may not be able 
to obtain a waiver from the required lenders. If this occurs, we would be in default under the Senior Secured Credit 
Facility, the lenders could exercise their rights, as described above, and we could be forced into bankruptcy or 
liquidation. 

Despite  current  indebtedness  levels,  we  and  our  subsidiaries  may  still  be  able  to  incur  additional 
indebtedness, which could further exacerbate the risks associated with our substantial financial leverage. 

We and our subsidiaries may be able to incur additional indebtedness in the future because the terms of our 

indebtedness do not fully prohibit us or our subsidiaries from doing so. Subject to covenant compliance and certain 
conditions, our indebtedness permits additional borrowing, including total borrowing up to $645 million under the 
Revolving Credit Facility, net of $5 million in letters of credit. If new debt is added to our current debt levels and our 
subsidiaries’ current debt levels, the related risks that we and they now face could intensify. 

Our pension and other post-retirement benefits funding obligations could increase as a result of a variety 
of factors. 

Our earnings may be positively or negatively impacted by the amount of income or expense recorded for our 

defined benefit pension plans and other post-retirement benefits (“OPEB”). Accounting principles generally 
accepted in the United States of America (“GAAP”) require that income or expense for defined benefit pension 
plans be calculated at the annual measurement date, or more frequently if certain events occur, using actuarial 
assumptions and calculations. These calculations reflect certain assumptions, the most significant of which relate to 
the capital markets, interest rates, health care inflation rates and other economic conditions. Changes in key 
economic indicators can change these assumptions. These assumptions, along with the actual value of assets at 
the measurement date, will impact the calculation of pension expense for the year. Although GAAP pension 
expense and pension contributions are not directly related, the key economic indicators that affect GAAP pension 
expense also affect the amount of cash that we would contribute to our defined benefit pension plans. Because the 
values of these defined benefit pension plans’ assets have fluctuated and will fluctuate in response to changing 
market conditions, the amount of gains or losses that will be recognized in subsequent periods, the impact on the 
funded status of the defined benefit pension plans and the future minimum required contributions, if any, could have 
a material adverse effect on our business, results of operations and financial condition. The magnitude of such 
impact cannot be determined with certainty at this time. However, the effect of a one percentage point decrease in 
the assumed discount rate would result in an increase in the December 31, 2021 defined benefit pension plans 
obligation of approximately $27 million. Likewise, a one percentage point decrease in the effective interest rate for 
determining defined benefit pension plans contributions would result in an increase in the minimum required 
contributions for 2022 of approximately $2 million. Similarly, a one percentage point decrease in the assumed 
discount rate would result in an increase in the December 31, 2021 OPEB obligation of approximately $15 million. 
As of December 31, 2021, the unfunded status of our defined benefit pension plans was $7 million and the 
unfunded status of our OPEB plan was $102 million. 

An  impairment  in  the  carrying  value  of  goodwill,  other  intangible  assets  or  long-lived  assets  could 
negatively affect our consolidated results of operations and net worth. 

Pursuant to GAAP, we are required to assess our goodwill and indefinite-lived intangible assets to determine if 
they are impaired on an annual basis, or more often if events or changes in circumstances indicate that impairment 
may have occurred. Intangible assets with finite lives are amortized over the useful life and are reviewed for 
impairment on triggering events such as events or changes in circumstances indicating that an impairment may 

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have occurred. If the testing performed indicates that impairment has occurred, we are required to record a non-
cash impairment charge for the difference between the carrying value of the goodwill and the implied fair value of 
the goodwill or the carrying value of the intangible assets and the fair value of the intangible assets in the period the 
determination is made. Disruptions to our business, end market conditions, protracted economic weakness, 
unsuccessful development of product and unexpected significant declines in operating results may result in charges 
for goodwill and other asset impairments. See "NOTE 2. Summary of Significant Accounting Policies” and "NOTE 6. 
Goodwill and Other Intangible Assets” of Notes to Consolidated Financial Statements included in Part II, Item 8. of 
this Annual Report on Form 10-K for additional details. 

The carrying value of long-lived assets is evaluated whenever events or circumstances indicate that the 

carrying value of a long-lived asset may not be recoverable. Events or circumstances that would result in an 
impairment review primarily include a significant change in the use of an asset, a significant change in the projected 
future cash flows generated by an asset or the planned sale or disposal of an asset. The asset would be considered 
impaired when there is no future use planned for the asset or the future net undiscounted cash flows generated by 
the asset or asset group are less than its carrying value. An impairment loss would be recognized based on the 
amount by which the carrying value exceeds fair value and could have a material adverse effect on the results of 
our operations. See "NOTE 2. Summary of Significant Accounting Policies” and "NOTE 5. Property, Plant and 
Equipment” of Notes to Consolidated Financial Statements included in Part II, Item 8. of this Annual Report on Form 
10-K for additional details. 

ITEM 1B. UNRESOLVED STAFF COMMENTS 

None. 

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ITEM 2. PROPERTIES 

Our world headquarters, which we own, is located at One Allison Way, Indianapolis, Indiana 46222. As of 
December 31, 2021, we have approximately 20 manufacturing and certain other facilities in eight countries. The 
following table sets forth certain information regarding our significant facilities. 

Location 

Approximate 
Size (ft2) 

Owned / 
Leased 

Description 

Plant 

Plant #3 
Plant #4 
Plant #6 
Plant #12 
Plant #14 and #15 
Plant #16 
Plant #17 

Innovation Center 

Auburn Hills 

Walker Die Casting 

  Indianapolis 
  Indianapolis 
  Indianapolis 
  Indianapolis 
  Indianapolis 
  Indianapolis 
  Indianapolis 

  Indianapolis 
Auburn Hills, 
Michigan, USA 
Lewisburg, 
Tennessee, USA    

Szentgotthard 
Chennai 

  Hungary 
  India 

927,000  
425,900  
431,500  
534,900  
481,100  
391,700  
389,000  

96,000  

110,400  

774,100  

149,000  
258,500  

Engineering, Operational 
Support 
Own 
Own  Manufacturing 
Own  Manufacturing 
Own  Manufacturing 
Own  Manufacturing 
Own  Manufacturing 
Own  Parts Distribution Center 

Engineering, Research and 
Development 
Engineering, Operational 
Support, Manufacturing 

Own 

Lease 

Own  Manufacturing 

Manufacturing & 
Own 
Customization 
Own  Manufacturing 

We believe all our facilities are suitable for their intended purpose, are being efficiently utilized and provide 

adequate capacity to meet demand for the next several years. The table above does not include sales offices 
located in various countries. 

ITEM 3. LEGAL PROCEEDINGS 

We are subject to various contingencies, including routine legal proceedings and claims arising out of the 

normal course of business. These proceedings primarily involve commercial claims, product liability claims, 
personal injury claims and workers’ compensation claims. The outcome of these lawsuits, legal proceedings and 
claims cannot be predicted with certainty. Nevertheless, we believe the outcome of any of these currently existing 
proceedings, even if determined adversely, would not have a material adverse effect on our financial condition or 
results of operations. See also "NOTE 18. Commitments and Contingencies” in Part II, Item 8., of this Annual 
Report on Form 10-K. 

ITEM 4. MINE SAFETY DISCLOSURES 

Not applicable. 

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PART II. 

ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 
Equity Securities 

Market Information 

Our common stock is listed on the NYSE under the symbol “ALSN.” 

Holders 

As of February 4, 2022, there were approximately 63,474 stockholders of record of our common stock, which 

includes the actual number of holders registered on the books of the Company and holders of shares in “street 
name” or persons, partnerships, associations, corporations or other entities identified in security position listings 
maintained by depositories. 

Unregistered Sales of Equity Securities 

During the period covered by this Annual Report on Form 10-K, we did not offer or sell any equity securities 

that were not registered under the Securities Act of 1933, as amended (the “Securities Act”). 

Issuer Purchases of Equity Securities 

Our Board of Directors has authorized us to repurchase up to $3,000 million, in the aggregate, of our common 
stock pursuant to a stock repurchase program (the “Repurchase Program”). The terms of the Repurchase Program 
provide that we may repurchase shares of our common stock, from time to time depending on market conditions 
and corporate needs, in the open market or through privately negotiated transactions in accordance with Rule 10b-
18 of the Exchange Act. The Repurchase Program does not have an expiration date. 

The following table sets forth information related to our repurchase of our common stock on a monthly basis in 

the three months ended December 31, 2021: 

October 1 – October 31, 2021 
November 1 – November 30, 2021 
December 1 – December 31, 2021 

Total 

Total Number 
of Shares 
Purchased 

—  
2,300,379  
2,949,113  
5,249,492  

Average Price 
Paid per Share 
—  
 $ 
36.06  
 $ 
35.27  
 $ 

Total Number of 
Shares Purchased 
as Part of 
Publicly 
Announced 
Programs(1) 

—  
2,300,379  
2,949,113  
5,249,492  

Approximate 
Dollar Value of 
Shares that May 
Yet Be Purchased 
Under Programs(1)   
—  
  $ 
  $  417,669,408  
  $  313,647,209  

(1)  These values reflect repurchases made under the Repurchase Program. 

Issuances Under Equity Compensation Plans 

For information regarding the securities authorized for issuance under our equity compensation plans, see 

Part III, Item 12 of this Annual Report on Form 10-K. 

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Comparative Stock Performance Graph 

The information included under the heading “Comparative Stock Performance Graph” in this Item 5 of Part II of 

this Annual Report on Form 10-K shall not be deemed to be “soliciting material” or subject to Regulation 14A or 
14C, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the 
liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or 
the Exchange Act. 

Set forth below is a graph comparing the total cumulative returns of ALSN, the S&P 500 Index and an index of 

peer companies selected by us. Our peer group includes Donaldson Company, Inc., Graco Inc., Roper 
Technologies, Inc., Gentex Corporation, Rockwell Automation, Inc. and Sensata Technologies Holding PLC. The 
graph assumes $100 was invested on December 31, 2016 in our common stock and each of the indices and that all 
dividends, if any, are reinvested. 

As of 
December 
31, 
2016 

As of 
December 
31, 
2017 

As of 
December 
31, 
2018 

As of 
December 
31, 
2019 

As of 
December 
31, 
2020 

As of 
December 
31, 
2021 

 $ 

  $ 

100.00  
100.00  
100.00  

129.95  
121.83  
139.25  

  $ 

134.29  
116.49  
127.51  

  $ 

149.73  
153.17  
170.02  

  $ 

136.13  
181.35  
205.11  

  $ 

116.96  
233.41  
246.93  

Allison Transmission 
   Holdings, Inc. 
S&P 500 Index 
Peer Group 

ITEM 6. [RESERVED] 

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ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 

The following discussion contains forward-looking statements regarding industry trends, our expectations 

regarding our future performance, liquidity and capital resources and other non-historical statements that involve 
risks and uncertainties. Our actual results may differ materially from those discussed in or implied by the forward-
looking statements as a result of various factors, including, without limitation, those set forth under Part I, Item 1A, 
“Risk Factors,” and other matters included elsewhere in this Annual Report on Form 10-K. The following discussion 
and analysis of our financial condition and results of operations should be read in conjunction with our consolidated 
financial statements and the notes thereto included elsewhere in this Annual Report on Form 10-K. 

This section of this Annual Report on Form 10-K generally discusses 2021 and 2020 items and year-over-year 

comparisons between 2021 and 2020. A detailed discussion of 2019 items and year-over-year comparisons 
between 2020 and 2019 that are not included in this Annual Report on Form 10-K can be found in “Management’s 
Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of our Annual Report on 
Form 10-K for the year ended December 31, 2020, as filed with the SEC on February 18, 2021. 

Overview 

We design and manufacture vehicle propulsion solutions, including commercial-duty on-highway, off-highway 
and defense fully automatic transmissions and electric hybrid and fully electric systems. The business was founded 
in 1915 and has been headquartered in Indianapolis, Indiana since inception. Allison is traded on the New York 
Stock Exchange under the symbol, “ALSN”. 

We have approximately 3,400 employees. Although approximately 76% of revenues were generated in North 
America in 2021, we have a global presence by serving customers in Asia, Europe, South America and Africa. We 
serve customers through an independent network of approximately 1,400 independent distributor and dealer 
locations worldwide. 

Trends Impacting Our Business 

Throughout 2021, the COVID-19 pandemic continued to cause supply chain, labor and raw material 

constraints that created volatility in our business performance and impacted global markets and supply chains. As a 
result, we experienced, and expect to continue to experience, raw material and component part price inflation, 
increased freight and logistics costs and increased overtime expense as a result of labor shortages. In addition, 
despite increased customer demand our net sales for 2021 were negatively impacted as a result of our customers’ 
inability to secure components from the broader commercial vehicle supply base which resulted in reduced 
commercial vehicle build schedules. We expect that commercial vehicle build schedules will continue to be 
negatively impacted by the availability of components in 2022. 

To limit the spread of COVID-19, governments continue to take various actions including the administration or 
mandate of vaccinations, travel bans and restrictions, quarantines, curfews, stay-at-home orders, social distancing 
guidelines and business shutdowns and closures. We are also continuing to take a variety of measures to promote 
the safety and security of our employees and to maintain operations with as minimal impact as possible to our 
stakeholders, and as a result, we have been able to continue our manufacturing operations and deliver our products 
to customers. 

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Full Year 2021 and 2020 Net Sales by End Market (in millions) 

End Market 
North America On-Highway 
North America Off-Highway 
Defense 
Outside North America On-Highway 
Outside North America Off-Highway 
Service Parts, Support Equipment and Other 
Total Net Sales 

2021 
Net Sales 

2020 
Net Sales 

    % Variance 

  $ 

  $ 

1,177     $ 
58      
186      
381      
83      
517      
2,402     $ 

1,081      
13      
182      
280      
61      
464      
2,081      

9 % 
346 % 
2 % 
36 % 
36 % 
11 % 
15 % 

North America On-Highway end market net sales were up 9% for the year ended December 31, 2021 
compared to the year ended December 31, 2020, principally driven by the recovery in customer demand following 
the pandemic-related disruptions experienced in 2020 and price increases on certain products. 

North America Off-Highway end market net sales were up $45 million for the year ended December 31, 2021 

compared to the year ended December 31, 2020, principally driven by higher demand for hydraulic fracturing 
applications and price increases on certain products. 

Defense end market net sales were up 2% for the year ended December 31, 2021 compared to the year 

ended December 31, 2020, principally driven by higher demand for Tracked vehicle applications and price 
increases on certain products, partially offset by lower Wheeled vehicle demand. 

Outside North America On-Highway end market net sales were up 36% for the year ended December 31, 
2021 compared to the year ended December 31, 2020, principally driven by the recovery in customer demand 
following the pandemic-related disruptions experienced in 2020, the execution of growth initiatives and price 
increases on certain products. 

Outside North America Off-Highway end market net sales were up 36% for the year ended December 31, 

2021 compared to the year ended December 31, 2020, principally driven by higher demand in the mining, energy 
and construction sectors and price increases on certain products. 

Service Parts, Support Equipment and Other end market net sales were up 11% for the year ended 
December 31, 2021 compared to the year ended December 31, 2020, principally driven by higher demand for 
service parts and support equipment and price increases on certain products. 

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Key Components of our Results of Operations 

Net sales 

We generate our net sales primarily from the sale of vehicle propulsion solutions, service and component 

parts, support equipment, defense kits, engineering services, royalties and extended transmission coverage to a 
wide array of OEMs, distributors and the U.S. government. Sales are recorded in accordance with the terms of the 
contract, net of provisions for customer allowances and other rebates. 

Cost of sales 

Our primary components of cost of sales are purchased parts, the overhead expense related to our 
manufacturing operations and direct labor associated with the manufacture and assembly of vehicle propulsion 
solutions and parts. For the year ended December 31, 2021, direct material costs were approximately 68%, 
overhead costs were approximately 24% and direct labor costs were approximately 8% of total cost of sales. We 
are subject to changes in our cost of sales caused by movements in underlying commodity prices. We seek to 
hedge against this risk by using LTAs. See Part II, Item 7A, “Quantitative and Qualitative Disclosures about Market 
Risk—Commodity Price Risk” included in this Annual Report on Form 10-K. 

Selling, general and administrative 

The principal components of our selling, general and administrative expenses are salaries and benefits for our 

office personnel, advertising and promotional expenses, product warranty expense, expenses relating to certain 
information technology systems and amortization of our intangible assets. 

Engineering — research and development 

We incur costs in connection with research and development programs that are expected to contribute to 

future earnings. Such costs are expensed as incurred. 

Non-GAAP Financial Measures 

We use Adjusted Earnings before Interest, Taxes, Depreciation, and Amortization (“EBITDA”) and Adjusted 

EBITDA as a percent of net sales to measure our operating profitability. We believe that Adjusted EBITDA and 
Adjusted EBITDA as a percent of net sales provide management, investors and creditors with useful measures of 
the operational results of our business and increase the period-to-period comparability of our operating profitability 
and comparability with other companies. Adjusted EBITDA as a percent of net sales is also used in the calculation 
of management’s incentive compensation program. The most directly comparable GAAP measure to Adjusted 
EBITDA and Adjusted EBITDA as a percent of net sales is Net income and Net income as a percent of net sales, 
respectively. Adjusted EBITDA is calculated as earnings before interest expense, net, income tax expense, 
amortization of intangible assets, depreciation of property, plant and equipment and other adjustments as defined 
by the Second Amended and Restated Credit Agreement dated as of March 29, 2019 as amended (the “Credit 
Agreement”) governing ATI's term loan facility due March 2026 (“Term Loan”). Adjusted EBITDA as a percent of net 
sales is calculated as Adjusted EBITDA divided by net sales. 

We use Adjusted free cash flow to evaluate the amount of cash generated by our business that, after the 

capital investment needed to maintain and grow our business and certain mandatory debt service requirements, 
can be used for repayment of debt, stockholder distributions and strategic opportunities, including investing in our 
business. We believe that Adjusted free cash flow enhances the understanding of the cash flows of our business for 
management, investors and creditors. Adjusted free cash flow is also used in the calculation of management’s 
incentive compensation program. The most directly comparable GAAP measure to Adjusted free cash flow is Net 
cash provided by operating activities. Adjusted free cash flow is calculated as Net cash provided by operating 
activities, excluding non-recurring restructuring charges, after additions of long-lived assets. 

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The following is a reconciliation of Net income and Net income as a percent of net sales to Adjusted EBITDA 
and Adjusted EBITDA as a percent of net sales and a reconciliation of Net cash provided by operating activities to 
Adjusted free cash flow: 

(unaudited, in millions) 
Net income (GAAP) 
plus: 

Income tax expense 
Interest expense, net 
Depreciation of property, plant and equipment 
Amortization of intangible assets 
Stock-based compensation expense (a) 
Unrealized gain on marketable securities (b) 
Technology-related investment gain (c) 
UAW Local 933 retirement incentive (d) 
Acquisition-related earnouts (e) 
Restructuring charges (f) 
Expenses related to long-term debt refinancing (g) 
Unrealized loss on foreign exchange (h) 
Environmental remediation (i) 
Loss associated with impairment of long-lived assets (j) 

Adjusted EBITDA (Non-GAAP) 
Net sales (GAAP) 
Net income as a percent of net sales (GAAP) 
Adjusted EBITDA as a percent of net sales (Non-GAAP) 
Net cash provided by operating activities (GAAP) 
(Deductions) or additions to reconcile to Adjusted free cash flow:   
Additions of long-lived assets 
Restructuring charges (f) 
Adjusted free cash flow (Non-GAAP) 

  $ 
  $ 

  $ 

  $ 

For the years ended December 31, 
2020 

2021 

2019 

  $ 

442 

  $ 

299 

  $ 

604 

130 
116 
104 
46 
14 
(4) 
(3) 
(2) 
1 
— 
— 
— 
— 
— 
844 
2,402 

  $ 
  $ 

94 
137 
96 
52 
17 
— 
— 
7 
1 
14 
13 
2 
— 
— 
732 
2,081 

  $ 
  $ 

18.4%     
35.1%     
635 

  $ 

(175) 
— 
460 

  $ 

14.4%     
35.2%     
561 

  $ 

(115) 
12 
458 

  $ 

164 
134 
81 
86 
13 
— 
— 
5 
1 
— 
1 
— 
(8) 
2 
1,083 
2,698 

22.4% 
40.1% 
847 

(172) 
— 
675 

(a) 

(b) 

(c) 

(d) 

(e) 

(f) 

(g) 

(h) 

Represents stock-based compensation expense (recorded in Cost of sales, Selling, general and 
administrative, and Engineering – research and development). 
Represents a gain (recorded in Other income (expense), net) related to an investment in the common stock 
of Jing-Jin Electric Technologies Co. Ltd. 
Represents gains (recorded in Other income (expense), net) related to investments in co-development 
agreements to expand our position in transmission technologies. 
Represents (adjustments) charges (recorded in Cost of sales) related to a 2018 to 2021 retirement incentive 
program for certain employees represented by the International Union, United Automobile, Aerospace and 
Agricultural Implement Workers of America (“UAW”) pursuant to the UAW Local 933 collective bargaining 
agreement effective through November 2023.  
Represents expenses (recorded in Selling, general and administrative and Engineering - research and 
development) for earnouts related to our acquisition of Vantage Power Limited. 
Represents restructuring and pension plan settlement charges (recorded in Cost of sales, Selling, general 
and administrative, Engineering - research and development, and Other income (expense), net) related to 
voluntary and involuntary separation programs for both hourly and salaried employees in 2020. 
Represents expenses (recorded in Other income (expense), net) related to the redemption of ATI’s 5.0% 
Senior Notes due 2024 (“5.0% Senior Notes”) in the fourth quarter of 2020, the refinancing of the prior term 
loan due 2022 ("Prior Term Loan") and prior revolving credit facility due 2021 ("Prior Revolving Credit 
Facility") in the first quarter of 2019, and the repricing of the Term Loan in the fourth quarter of 2019. 
Represents losses (recorded in Other income (expense), net) on intercompany financing transactions related 
to investments in plant assets for our India facility. 

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(i) 

(j) 

Represents an environmental remediation benefit (recorded in Selling, general and administrative) related to 
reduction of the liability for ongoing environmental remediation operating, monitoring and maintenance 
activities at our Indianapolis, Indiana manufacturing facilities.  
Represents charges (recorded in Selling, general and administrative) associated with the impairment of long-
lived assets related to the production of the TC10 transmission. 

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Results of Operations 

Throughout 2021, the COVID-19 pandemic continued to cause supply chain, labor, freight and raw material 

constraints that created volatility in our business performance and impacted global markets. As a result, we 
experienced, and expect to continue to experience, raw material and component part price inflation, increased 
freight and logistics costs and increased overtime expense as a result of labor shortages. See “Trends Impacting 
our Business” above for additional information on the impact of the COVID-19 pandemic on our results of 
operations. 

The following table sets forth certain financial information for the years ended December 31, 2021 and 2020. 

The following table and discussion should be read in conjunction with the information contained in our consolidated 
financial statements and the notes thereto included in Part II, Item 8. of this Annual Report on Form 10-K. 

Comparison of years ended December 31, 2021 and 2020 

(dollars in millions) 
Net sales 
Cost of sales 
Gross profit 
Operating expenses: 

Selling, general and administrative 
Engineering — research and development 

Total operating expenses 

Operating income 
Other expense, net: 

Interest expense, net 
Other income (expense), net 
Total other expense, net 

Income before income taxes 
Income tax expense 
Net income 

Net sales 

Years ended December 31, 

2021 

% 
of net sales 

2020 

% 
of net sales 

  $ 

2,402     
1,257     
1,145     

305     
171     
476     
669     

(116)    
19     
(97)    
572     
(130)    
442     

  $ 

100 %   $ 

52  
48  

13  
7  
20  
28  

(5 ) 
1  
(4 ) 
24  
(6 ) 
18 %   $ 

2,081     
1,083     
998     

100% 
52 
48 

317     
147     
464     
534     

(137)    
(4)    
(141)    
393     
(94)    
299     

15 
7 
22 
26 

(7) 
— 
(7) 
19 
(5) 
14% 

Net sales for the year ended December 31, 2021 were $2,402 million compared to $2,081 million for the year 

ended December 31, 2020, an increase of 15%. The increase was principally driven by a $101 million, or 36%, 
increase in net sales in the Outside North America On-Highway end market principally driven by the recovery in 
customer demand following the pandemic-related disruptions experienced in 2020, the execution of growth 
initiatives and price increases on certain products, a $96 million, or 9%, increase in net sales in the North America 
On-Highway end market principally driven by the recovery in customer demand following the pandemic-related 
disruptions experienced in 2020 and price increases on certain products, a $53 million, or 11%, increase in net 
sales in the Service Parts, Support Equipment and Other end market principally driven by higher demand for 
service parts and support equipment and price increases on certain products, a $45 million, or 346%, increase in 
net sales in the North America Off-Highway end market principally driven by higher demand for hydraulic fracturing 
applications and price increases on certain products, a $22 million, or 36%, increase in net sales in the Outside 
North America Off-Highway end market principally driven by higher demand in the mining, energy and construction 
sectors and price increases on certain products and a $4 million, or 2%, increase in net sales in the Defense end 
market principally driven by higher demand for Tracked vehicle applications and price increases on certain 
products, partially offset by lower Wheeled vehicle demand. 

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Cost of sales 

Cost of sales for the year ended December 31, 2021 was $1,257 million compared to $1,083 million for the 

year ended December 31, 2020, an increase of 16%. The increase was principally driven by increased direct 
material and manufacturing expense commensurate with increased net sales, unfavorable material costs and 
increased incentive compensation expense, partially offset by UAW retirement incentive program expense in 2020 
that did not reoccur in 2021 and restructuring charges in 2020 that did not reoccur in 2021. 

Gross profit 

Gross profit for the year ended December 31, 2021 was $1,145 million compared to $998 million for the year 

ended December 31, 2020, an increase of 15%. The increase was principally driven by $211 million related to 
increased net sales, $35 million of price increases on certain products, $7 million related to UAW retirement 
incentive program expense in 2020 that did not reoccur in 2021 and $5 million of restructuring charges in 2020 that 
did not reoccur in 2021, partially offset by $52 million of unfavorable material costs, $43 million of higher 
manufacturing expense commensurate with increased net sales and $18 million of higher incentive compensation 
expense. Gross profit as a percent of net sales for the year ended December 31, 2021 decreased 30 basis points 
compared to the same period in 2020 principally driven by unfavorable material costs and higher incentive 
compensation expense, partially offset by increased net sales, price increases on certain products, UAW retirement 
incentive program expenses in 2020 that did not reoccur in 2021 and restructuring charges in the second quarter of 
2020 that did not reoccur in 2021. 

Selling, general and administrative 

Selling, general and administrative expenses for the year ended December 31, 2021 were $305 million 
compared to $317 million for the year ended December 31, 2020, a decrease of 4%. The decrease was principally 
driven by unfavorable product warranty adjustments in 2020 that did not reoccur in 2021, $6 million of lower 
intangible amortization expense and $4 million of lower stock-based compensation expense, partially offset by 
higher incentive compensation expense and higher commercial activities spending. 

Engineering — research and development 

Engineering expenses for the year ended December 31, 2021 were $171 million compared to $147 million for 
the year ended December 31, 2020, an increase of 16%. The increase was principally driven by increased product 
initiatives spending and higher incentive compensation expense, partially offset by $4 million of restructuring 
charges in 2020 that did not reoccur in 2021. 

Interest expense, net 

Interest expense, net for the year ended December 31, 2021 was $116 million compared to $137 million for 

the year ended December 31, 2020, a decrease of 15%. The decrease was principally driven by $11 million of 
decreased interest expense due to lower interest rates as a result of our long-term debt refinancing in the fourth 
quarter of 2020 that extended maturities at lower fixed interest rates, $6 million of deferred financing costs written 
off related to the long-term debt refinancing in the fourth quarter of 2020 that did not reoccur in 2021, $3 million of 
lower interest expense on ATI’s Term Loan due to lower variable interest rates and $2 million of decreased interest 
expense on ATI’s Revolving Credit Facility, partially offset by $4 million of increased interest expense on interest 
rate hedges. 

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Other income (expense), net 

Other income (expense), net for the year ended December 31, 2021 was $19 million compared to ($4) million 
for the year ended December 31, 2020. The change was principally driven by $13 million of expenses related to the 
redemption of ATI's 5.0% Senior Notes in the fourth quarter of 2020 that did not reoccur in 2021, a $4 million 
unrealized gain on marketable securities, a $4 million gain related to technology-related investments, $3 million of 
favorable foreign exchange on intercompany financing and a $2 million settlement charge related to the settlement 
of pension obligations as a result of our voluntary and involuntary separation programs recognized in 2020 that did 
not reoccur in 2021, partially offset by $3 million of reduced post-retirement benefit plan credits. 

Income tax expense 

Income tax expense for the year ended December 31, 2021 was $130 million resulting in an effective tax rate 

of 23%, compared to $94 million of income tax expense and an effective tax rate of 24% for the year ended 
December 31, 2020. The increase in income tax expense was principally driven by increased taxable income. The 
decrease in the effective tax rate was principally driven by increased estimated U.S. federal income tax deductions. 

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Liquidity and Capital Resources 

We generate cash primarily from operations to fund our operating, investing and financing activities. Our 
principal uses of cash are operating expenses, capital expenditures, working capital needs, debt service, dividends 
on common stock, stock repurchases, and strategic growth initiatives, including investments, acquisitions and 
collaborations. Our ability to generate cash in the future and our future uses of cash are subject to general 
economic, financial, competitive, legislative, regulatory and other factors that may be beyond our control. We had 
total available cash and cash equivalents of $127 million and $310 million as of December 31, 2021 and 2020, 
respectively. Of the available cash and cash equivalents, all of the $127 million was deposited in operating accounts 
as of December 31, 2021, compared to $150 million deposited in operating accounts and $160 million invested in 
U.S. government backed securities as of December 31, 2020. 

As of December 31, 2021, the total of cash and cash equivalents held by foreign subsidiaries was $84 million, 
the majority of which was located in China and Europe. We manage our worldwide cash requirements considering 
available funds among the subsidiaries through which we conduct our business and the cost effectiveness with 
which those funds can be accessed. As a result, we do not currently anticipate that local liquidity restrictions will 
preclude us from funding our targeted expectations or operating needs with local resources. 

We have not recognized any deferred tax liabilities associated with earnings in foreign subsidiaries, except for 

our subsidiary located in China, as they are intended to be permanently reinvested and used to support foreign 
operations or have no associated tax requirements. We have recorded a deferred tax liability of $3 million for the tax 
liability associated with the remittance of previously taxed income and unremitted earnings for our subsidiary 
located in China. The remaining deferred tax liabilities, if recorded, related to unremitted earnings that are 
indefinitely reinvested are not material. 

Our liquidity requirements are significant, primarily due to our debt service requirements. As of December 31, 

2021, we had $631 million of indebtedness associated with ATI’s Term Loan, $400 million of indebtedness 
associated with ATI’s 4.75% Senior Notes, $500 million of indebtedness associated with ATI’s 5.875% Senior Notes 
and $1,000 million of indebtedness associated with ATI’s 3.75% Senior Notes. Short-term and long-term debt 
service liquidity requirements consist of $2 million of minimum required quarterly principal payments on ATI’s Term 
Loan through its maturity date of March 2026 and periodic interest payments on ATI’s Term Loan and the Senior 
Notes. There are no required quarterly principal payments on ATI’s Senior Notes. Long-term debt service liquidity 
requirements also consist of the payment in full of any remaining principal balance of ATI’s Term Loan and the 
Senior Notes upon their respective maturity dates. 

We made $7 million and $6 million of principal payments on the Term Loan during the years ended December 

31, 2021 and 2020, respectively. Our ability to make payments on and refinance our indebtedness and to fund 
planned capital expenditures and growth initiatives will depend on our ability to generate cash in the future. 

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In November 2020, the Company and ATI entered into an amendment to the Credit Agreement to increase the 

commitments under the revolving credit facility due September 2025 ("Revolving Credit Facility" and, together with 
the Term Loan, the “Senior Secured Credit Facility”) by $50 million. The amendment also extended the Revolving 
Credit Facility termination date from September 2024 to September 2025. The Senior Secured Credit Facility, as 
amended, provides for a $650 million Revolving Credit Facility, net of an allowance for up to $75 million in 
outstanding letters of credit commitments. As of December 31, 2021, we had $645 million available under the 
Revolving Credit Facility, net of $5 million in letters of credit. If we have commitments outstanding on the Revolving 
Credit Facility at the end of a fiscal quarter, the Senior Secured Credit Facility requires us to maintain a specified 
maximum first lien net leverage ratio of 5.50x. Additionally, within the terms of the Senior Secured Credit Facility, a 
first lien net leverage ratio at or below 4.00x results in the elimination of excess cash flow payments on the Senior 
Secured Credit Facility for the applicable year. As of December 31, 2021, our first lien net leverage ratio was 0.60x. 
The Senior Secured Credit Facility also provides certain financial incentives based on our first lien net leverage 
ratio. A first lien net leverage ratio at or below 4.00x and above 3.50x results in a 25 basis point reduction to the 
applicable margin on the Revolving Credit Facility. A first lien net leverage ratio at or below 3.50x results in an 
additional 25 basis point reduction to the applicable margin on the Revolving Credit Facility. These reductions 
remain in effect as long as we achieve a first lien net leverage ratio at or below the related threshold. 

In addition, the Credit Agreement includes, among other things, customary restrictions (subject to certain 

exceptions) on our ability to incur certain indebtedness, grant certain liens, make certain investments, engage in 
acquisitions, consolidations and mergers, declare or pay certain dividends, and repurchase shares of our common 
stock. The indentures governing the Senior Notes contain negative covenants restricting or limiting our ability to, 
among other things, incur or guarantee additional indebtedness, incur liens, pay dividends on, redeem or 
repurchase our capital stock, make certain investments, permit payment or dividend restrictions on certain of our 
subsidiaries, sell assets, engage in certain transactions with affiliates, and consolidate or merge or sell all or 
substantially all of our assets. As of December 31, 2021, we are in compliance with all covenants under the Senior 
Secured Credit Facility and indentures governing the Senior Notes. 

Our credit ratings are reviewed by Moody’s Investors Service (“Moody’s”) and Fitch Ratings (“Fitch”), and in 

2021, we received credit ratings upgrades from Moody's and Fitch. Moody’s rates our corporate credit at ‘Ba1’, the 
Term Loan at ‘Baa2’, the 4.75% Senior Notes at ‘Ba2’, the 5.875% Senior Notes at 'Ba2', and the 3.75% Senior 
Notes at ‘Ba2’. Fitch rates our corporate credit at ‘BB’, the Term Loan at ‘BBB-’, the 4.75% Senior Notes at ‘BB’, the 
5.875% Senior Notes at 'BB' and the 3.75% Senior Notes at ‘BB’. 

We anticipate that our capital expenditures in 2022 will be in line with 2021 and expect increased cash income 

taxes as a result of lower deductions in 2022 related to our intangible assets. 

 During 2021, we repurchased approximately $513 million of our common stock under the Repurchase 
Program. All of the repurchase transactions during 2021 were settled in cash during the same period. As of 
December 31, 2021, we had approximately $314 million available under the Repurchase Program. 

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The following table shows our sources and uses of funds for the years ended December 31, 2021, 2020 and 

2019 (in millions): 

Statement of Cash Flows Data 
Cash flows provided by operating activities 
Cash flows used for investing activities 
Cash flows used for financing activities 

Years ended December 31, 

  $ 

2021 

2020 

2019 

635     $ 
(212 )    
(604 )    

561     $ 
(111 )    
(335 )    

847  
(405 ) 
(480 ) 

Generally, cash provided by operating activities has been adequate to fund our operations. We have 

significant liquidity, including $127 million of cash and cash equivalents and $645 million available under the 
Revolving Credit Facility, net of $5 million in letters of credit, as of December 31, 2021. At this time, we believe cash 
provided by operating activities, cash and cash equivalents and borrowing capacity under the Senior Secured Credit 
Facility will be sufficient to meet our known and anticipated cash requirements for the next twelve months and 
thereafter. 

Cash provided by operating activities 

Operating activities for the year ended December 31, 2021 generated $635 million of cash compared to $561 

million for the year ended December 31, 2020. The increase was principally driven by higher gross profit, lower 
cash incentive compensation payments and lower cash interest payments, partially offset by higher operating 
working capital requirements, higher cash income taxes and increased product initiatives spending. 

Cash used for investing activities 

Investing activities for the year ended December 31, 2021 used $212 million of cash compared to $111 million 

for the year ended December 31, 2020. The increase was principally driven by a $60 million increase in capital 
expenditures, a $41 million investment in marketable securities and a $4 million net working capital settlement 
related to the acquisition of Walker Die Casting in 2020 that did not reoccur in 2021, partially offset by $4 million of 
proceeds from technology-related investments in 2021. 

Cash used for financing activities 

Financing activities for the year ended December 31, 2021 used $604 million of cash compared to $335 

million for the year ended December 31, 2020. The increase was principally driven by $288 million of increased 
stock repurchases under the Repurchase Program and $3 million of increased dividend payments, partially offset by 
payments related to long-term debt refinancing in 2020 that did not reoccur in 2021. 

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Critical Accounting Policies and Significant Accounting Estimates 

The preparation of the consolidated financial statements in accordance with GAAP requires management to 

make estimates and assumptions that affect the reported amounts of some assets and liabilities and, in some 
instances, the reported amounts of net sales and expenses during the applicable reporting period. Differences 
between actual amounts and estimates are recorded in the period identified. Estimates can require a significant 
amount of judgment, and a different set of judgments could result in changes to our reported results. A summary of 
our critical accounting estimates is included below. 

Revenue Recognition 

Revenue recognition contains uncertainties because it requires management to make assumptions and to 

apply judgment to estimate the amount of sales incentives and provision for government price reductions. 
Distributor and customer sales incentives, consisting of allowances and other rebates, are estimated at the time of 
sale based upon history and experience and are recorded as a reduction to net sales. Incentive programs are 
generally product specific or region specific. Some factors used in estimating the cost of incentives include the 
number of transmissions that will be affected by the incentive program and the rate of acceptance of any incentive 
program. If the actual number of affected transmissions differs from this estimate, or if a different mix of incentives is 
actually paid, the impact on net sales would be recorded in the period that the change was identified. Assuming our 
current mix of sales incentives, a 10% change in sales incentives would correspondingly change our earnings by 
approximately $9 million. 

Under terms of certain previous U.S. government contracts, there were price reduction clauses and provisions 

for potential price reductions which are estimated at the time of sale based upon history and experience, and 
finalized after completion of U.S. government audits. Given our current price reduction reserve for government 
contracts, a 10% adjustment in our price reduction reserve would correspondingly change our earnings by 
approximately $6 million. Since 2014, Allison contracts with the U.S. Government have generally been firm, fixed 
price contracts and therefore have not required re-calculation of pricing based on cost principles.  

Further information is provided in "NOTE 2. Summary of Significant Accounting Policies” of Notes to 

Consolidated Financial Statements included in Part II, Item 8., of this Annual Report on Form 10-K. 

Goodwill and Other Intangible Assets 

We have elected to perform our annual impairment tests for goodwill and indefinite lived intangible assets on 

October 31 of every year using a multi-step impairment test. In Step 0, we have the option to evaluate various 
qualitative factors to determine the likelihood of impairment. If we determine that the fair value is more likely than 
not less than the carrying value, then we are required to perform Step 1. If we do not elect to perform Step 0, we 
can voluntarily proceed directly to Step 1. In Step 1, we perform a quantitative analysis to compare the fair value to 
our carrying value. If the fair value exceeds the carrying value, no impairment is recorded, and we are not required 
to perform further testing. If the carrying value exceeds fair value, we would record an impairment loss equal to the 
difference. 

A qualitative assessment contains uncertainties because it requires management to make assumptions and to 

apply judgment to assess business changes, economic outlook, financial trends and forecasts, growth rates, credit 
ratings, equity ratings, discount rates, industry data and other relevant qualitative factors. 

A quantitative analysis contains uncertainties because it is performed utilizing a discounted cash flow model 

which includes key assumptions, such as financial forecasts; net sales growth derived from market information, 
industry reports, marketing programs and future new product introductions; operating margin improvements derived 

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from cost reduction programs and fixed cost leverage driven by higher sales volumes; and a risk-adjusted discount 
rate.  

Goodwill represents the excess of purchase price paid over the fair value of net assets acquired. In 
accordance with the Financial Accounting Standards Board’s (“FASB”) authoritative accounting guidance on 
goodwill, we do not amortize goodwill but rather evaluate it for impairment on an annual basis, or more often if 
events or circumstances change that could cause goodwill to become impaired. Goodwill is tested for impairment at 
the reporting unit level, which is the same as our one operating and reportable segment. We do not aggregate any 
components into our reporting unit.  

Goodwill impairment testing for 2021 was performed using the Step 0 analysis by assessing certain qualitative 
trends and factors. These trends and factors were compared to, and based on, the assumptions used in prior years. 
After reviewing the various qualitative factors mentioned above, our 2021 annual goodwill impairment test indicated 
that the fair value for the reporting unit more likely than not exceeded its carrying value, indicating no impairment. 

Other intangible assets have both indefinite and finite useful lives. Intangible assets with indefinite useful lives 

are not amortized but are tested annually for impairment, or more often if events or circumstances change that 
could cause intangible assets with indefinite useful lives to become impaired. After reviewing the various qualitative 
factors mentioned above, our annual 2021 indefinite lived intangible assets impairment tests, as of October 31, 
2021, indicated that the fair value of our indefinite lived intangible assets more likely than not exceeded their 
respective carrying values, indicating no impairment. 

Intangible assets with finite lives are amortized over their estimated useful lives and reviewed for impairment 

when circumstances change that would create a triggering event. Customer relationships are amortized over the life 
in which expected benefits are to be consumed. The other remaining finite life intangibles are amortized on a 
straight-line basis over their useful lives. We evaluate the remaining useful life of the other intangible assets on a 
periodic basis to determine whether events or circumstances warrant a revision to the remaining useful life. 
Assumptions and estimates about future values and remaining useful lives of our intangible and other long-lived 
assets are complex and subjective. Such assumptions and estimates can be affected by a variety of factors, 
including external factors such as industry and economic trends, and internal factors, such as changes in our 
business strategy and internal forecasts. Although management believes the historical assumptions and estimates 
are reasonable and appropriate, different assumptions and estimates could materially impact our reported financial 
results. Further information is provided in "NOTE 6. Goodwill and Other Intangible Assets” of Notes to Consolidated 
Financial Statements included in Part II, Item 8., of this Annual Report on Form 10-K. 

Impairment of Long-Lived Assets 

The carrying value of long-lived assets is evaluated whenever events or circumstances indicate that the 
carrying value of a long-lived asset may not be recoverable. Events or circumstances that would result in an 
impairment review primarily include a significant change in the use of an asset, or the planned sale or disposal of an 
asset. The asset would be considered impaired when there is no future use planned for the asset or the future net 
undiscounted cash flows generated by the asset or asset group are less than its carrying value. An impairment loss 
would be recognized based on the amount by which the carrying value exceeds fair value. 

Assumptions and estimates used to determine cash flows in the evaluation of impairment and the fair values 

used to determine the impairment are subject to a degree of judgment and complexity. Any changes to the 
assumptions and estimates resulting from changes in actual results or market conditions from those anticipated 
may affect the carrying value of long-lived assets and could result in an impairment charge. 

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Warranty 

Provisions for estimated expenses related to product warranties are made at the time products are sold. 
Warranty claims arise when a transmission fails while in service during the relevant warranty period. The warranty 
reserve is adjusted in Selling, general and administrative expense based on our current and historical warranty 
claims paid and associated repair costs. These estimates are established using historical information including the 
nature, frequency, and average cost of warranty claims and are adjusted as actual information becomes available. 
From time to time, we may initiate a specific field action program. As a result of the uncertainty surrounding the 
nature and frequency of specific field action programs, the liability for such programs is recorded when we commit 
to an action. We review and assess the liability for these programs on a quarterly basis. We also assess our ability 
to recover certain costs from our suppliers and record a receivable from the supplier when we believe a recovery is 
probable. Warranty costs may differ from those estimated if actual claim rates are higher or lower than our historical 
rates. Further information is provided in "NOTE 10. Product Warranty Liabilities” of Notes to Consolidated Financial 
Statements included in Part II, Item 8., of this Annual Report on Form 10-K which contains a summary of the activity 
in our warranty liability account for 2021, 2020 and 2019, including adjustments to pre-existing warranties. 

Pension and Post-retirement Benefit Plans 

Pension and OPEB costs are based upon various actuarial assumptions and methodologies as prescribed by 

authoritative accounting guidance. These assumptions include discount rates, expected return on plan assets, 
health care cost trend rates, inflation, rate of compensation increases, population demographics, mortality rates and 
other factors. We review all actuarial assumptions on an annual basis. 

A change in the discount rate can have a significant impact on determining our benefit obligations. Our current 

discount rate is determined by matching the plans’ projected cash flows to a yield curve based on long-term, fixed 
income debt instruments available as of the measurement date of December 31, 2021. The effect of a one 
percentage point decrease in the assumed discount rate would result in an increase in the December 31, 2021 
defined benefit pension plans obligation of approximately $27 million. Similarly, a one percentage point decrease in 
the assumed discount rate would result in an increase in the December 31, 2021 OPEB obligation of approximately 
$15 million. 

Further information is provided in "NOTE 15. Employee Benefit Plans” of Notes to Consolidated Financial 

Statements included in Part II, Item 8., of this Annual Report on Form 10-K, which contains our review on various 
actuarial assumptions. 

Income Taxes 

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are 
recognized for the expected future tax consequences attributable to temporary differences between the financial 
statement carrying amounts of existing assets and liabilities and their respective tax bases. The future tax benefits 
associated with operating loss and tax credit carryforwards are recognized as deferred tax assets. Deferred tax 
assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in 
which those temporary differences are expected to be recovered or settled. When releasing income tax effects from 
accumulated other comprehensive loss, we utilize the portfolio securities approach. 

As of December 31, 2021, our U.S. federal income tax deductions related to our intangible assets were 
approximately $330 million in 2021 and are expected to be approximately $197 million in 2022 and approximately 
$10 million annually through 2034. Excluding our intangible asset deductions, our expected tax payments would 
have increased by approximately $77 million for the year ended December 31, 2021. 

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The need to establish a valuation allowance against the deferred tax assets is assessed at least quarterly 

based on a more-likely-than-not realization threshold, in accordance with the FASB authoritative accounting 
guidance on income taxes. Appropriate consideration is given to all positive and negative evidence related to that 
realization. This assessment considers, among other matters, the nature, frequency and severity of recent losses, 
forecasts of future profitability, the duration of statutory carryforward periods, and experience with tax attributes 
expiring unused and tax planning alternatives. The weight given to these considerations depends upon the degree 
to which they can be objectively verified. 

Further information on income taxes is provided in "NOTE 16. Income Taxes” of Notes to Consolidated 

Financial Statements included in Part II, Item 8., of this Annual Report on Form 10-K. 

Business Combinations 

We use the acquisition method to account for business combinations. The assets acquired and liabilities 
assumed are recorded at their respective estimated fair value at the date of acquisition. Any excess purchase price 
over the fair values of the acquired net assets is recorded as goodwill. Determining the fair values of assets 
acquired and liabilities assumed requires management's judgment and includes the use of estimates with respect to 
timing and amount of future cash flows, market rate assumptions, actuarial assumptions, appropriate discount rates 
and other relevant factors. 

Off-Balance Sheet Arrangements 

We are not a party to any off-balance sheet arrangements. 

Recently Adopted Accounting Pronouncements 

Refer to "NOTE 2. Summary of Significant Accounting Policies” in Part II, Item 8., of this Annual Report on 

Form 10-K. 

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ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk 

Our exposure to market risk consists of changes in interest rates, foreign currency rate fluctuations and 

movements in commodity prices. 

Interest Rate Risk 

We are subject to interest rate market risk in connection with a portion of our long-term debt. Our principal 
interest rate exposure relates to outstanding amounts under our Senior Secured Credit Facility. Our Senior Secured 
Credit Facility provides for variable rate borrowings of up to $650 million including $645 million under our Revolving 
Credit Facility, net of $5 million of letters of credit. A one-eighth percent increase or decrease in assumed interest 
rates for the Senior Secured Credit Facility, if fully drawn as of December 31, 2021, would have an impact of 
approximately $1 million on interest expense. As of December 31, 2021, we had no outstanding borrowings against 
the Revolving Credit Facility. 

From time to time, we enter into interest rate swap agreements to hedge the risk associated with our variable 

interest rate debt. As of December 31, 2021, we held interest rate swaps effective from (i) September 2019 to 
September 2022 with notional values totaling $250 million and a weighted average London Interbank Offered Rate 
(“LIBOR”) fixed rate of 3.01%, (ii) September 2019 to September 2025 with notional values totaling $250 million and 
a weighted average LIBOR fixed rate of 3.04% and (iii) September 2022 to September 2025 with notional values 
totaling $250 million and a weighted average LIBOR fixed rate of 2.82%. 

Refer to "NOTE 8. Debt” and "NOTE 9. Derivatives” of Notes to Consolidated Financial Statements included in 

Part II, Item 8., of this Annual Report on Form 10-K. 

Exchange Rate Risk 

While our net sales and costs are denominated primarily in U.S. Dollars, net sales, costs, assets and liabilities 
are generated in other currencies including Brazilian Real, British Pound, Canadian Dollar, Chinese Yuan Renminbi, 
Euro, Hungarian Forint, Indian Rupee and Japanese Yen. The expansion of our business outside North America 
may further increase the risk that cash flows resulting from these activities may be adversely affected by changes in 
currency exchange rates. 

Assuming current levels of foreign currency transactions, a 10% aggregate increase or decrease in the 
Chinese Yuan Renminbi, Euro, Indian Rupee, and Japanese Yen would correspondingly change our earnings, net 
of tax, by an estimated $4 million per year. We believe other exposure to foreign currencies is immaterial. 

Commodity Price Risk 

We are subject to changes in our cost of sales caused by movements in underlying commodity prices. As of 

December 31, 2021, approximately 68% of our cost of sales consists of purchased components with significant raw 
material content. A substantial portion of the purchased parts are made of aluminum and steel. The cost of 
aluminum parts includes an adjustment factor on future purchases for fluctuations in aluminum prices based on 
accepted industry indices. In addition, a substantial amount of steel-based contracts also includes an index-based 
component. As our costs change, we are able to pass through a portion of the changes in commodity prices to 
certain of our customers according to our LTAs. We historically have not entered into long-term purchase contracts 
related to the purchase of aluminum and steel. 

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Assuming current levels of commodity purchases, a 10% variation in the price of aluminum and steel would 

correspondingly change our earnings by approximately $6 million and $11 million per year, respectively. 

Many of our LTAs have incorporated a cost-sharing arrangement related to potential future commodity price 
fluctuations. For purposes of the sensitivity analysis above, the impact of these cost sharing arrangements has not 
been included. 

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ITEM 8. Financial Statements and Supplementary Data 

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

Report of Independent Registered Public Accounting Firm (PCAOB: ID 238) 

Consolidated Balance Sheets 

Consolidated Statements of Comprehensive Income 

Consolidated Statements of Cash Flows 

Consolidated Statements of Stockholders' Equity 

Notes to Consolidated Financial Statements 

Page 

53 
55 

56 

57 

58 

59 

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Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders of Allison Transmission Holdings, Inc. 

Opinions on the Financial Statements and Internal Control over Financial Reporting 

We have audited the accompanying consolidated balance sheets of Allison Transmission Holdings, Inc. and its 
subsidiaries (the “Company”) as of December 31, 2021 and 2020, and the related consolidated statements of 
comprehensive income, of stockholders’ equity and of cash flows for each of the three years in the period ended 
December 31, 2021, including the related notes and financial statement schedule listed in the index appearing 
under Item 15(a)(2) (collectively referred to as the “consolidated financial statements”). We also have audited the 
Company's internal control over financial reporting as of December 31, 2021, based on criteria established in 
Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the 
Treadway Commission (COSO). 

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the 
financial position of the Company as of December 31, 2021 and 2020, and the results of its operations and its cash 
flows for each of the three years in the period ended December 31, 2021 in conformity with accounting principles 
generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material 
respects, effective internal control over financial reporting as of December 31, 2021, based on criteria established in 
Internal Control - Integrated Framework (2013) issued by the COSO. 

Basis for Opinions 

The Company's management is responsible for these consolidated financial statements, for maintaining effective 
internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial 
reporting, included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. 
Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's 
internal control over financial reporting based on our audits. We are a public accounting firm registered with the 
Public Company Accounting Oversight Board (United States) (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 audits to obtain reasonable assurance about whether the consolidated financial statements are free 
of material misstatement, whether due to error or fraud, and whether effective internal control over financial 
reporting was maintained in all material respects. 

Our audits of the consolidated financial statements included performing procedures to assess the risks of material 
misstatement of the consolidated 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 consolidated 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 consolidated financial statements. Our audit of internal control over financial reporting included obtaining an 
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and 
testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our 
audits also included performing such other procedures as we considered necessary in the circumstances. We 
believe that our audits provide a reasonable basis for our opinions. 

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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 (i) pertain to the maintenance of records that, in reasonable detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (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 the company are being made 
only in accordance with authorizations of management and directors of the company; and (iii) 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. 

Critical Audit Matters 

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated 
financial statements that was communicated or required to be communicated to the audit committee and that (i) 
relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our 
especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter 
in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by 
communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the 
accounts or disclosures to which it relates. 

Product Warranty Liabilities 

As described in Notes 2 and 10 to the consolidated financial statements, the Company’s consolidated product 
warranty liability balance was $53 million as of December 31, 2021. Management makes provisions for the 
estimated product warranty liabilities at the time the products are sold. These estimates are established using 
historical information including the nature, frequency, and average cost of warranty claims and are adjusted as 
actual information becomes available.     

The principal considerations for our determination that performing procedures relating to the product warranty 
liabilities is a critical audit matter are (i) the significant judgment by management when determining the product 
warranty liability estimate; (ii) the high degree of auditor judgment, subjectivity, and effort in performing procedures 
and evaluating audit evidence relating to the significant assumptions related to the frequency and average cost of 
warranty claims; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.    

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our 
overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of 
controls relating to management’s process for developing the estimate, significant assumptions, and inputs used to 
estimate product warranty liabilities. These procedures also included, among others, (i) testing the completeness 
and accuracy of historical warranty claims data used in the estimate and (ii) professionals with specialized skill and 
knowledge were used to assist in evaluating the reasonableness of the frequency and average cost of warranty 
claims assumptions. 

/s/ PricewaterhouseCoopers LLP  
Indianapolis, Indiana 
February 17, 2022 

We have served as the Company’s auditor since 2008. 

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ASSETS 
Current Assets 

Allison Transmission Holdings, Inc. 
Consolidated Balance Sheets 
(dollars in millions, except share data) 

December 31, 
2021 

December 31, 
2020 

Cash and cash equivalents 
Accounts receivable - net of allowance for doubtful accounts of $3 and $1, 
respectively 
Inventories 
Other current assets 

  $ 

Total Current Assets 
Property, plant and equipment, net 
Intangible assets, net 
Goodwill 
Marketable securities 
Other non-current assets 
TOTAL ASSETS 
LIABILITIES 
Current Liabilities 

Accounts payable 
Product warranty liability 
Current portion of long-term debt 
Deferred revenue 
Other current liabilities 

Total Current Liabilities 
Product warranty liability 
Deferred revenue 
Long-term debt 
Deferred income taxes 
Other non-current liabilities 
TOTAL LIABILITIES 
Commitments and Contingencies (see NOTE 18) 
STOCKHOLDERS’ EQUITY 

  $ 

  $ 

Common stock, $0.01 par value, 1,880,000,000 shares authorized, 
   99,262,951 shares issued and outstanding and 112,033,477 shares 
   issued and outstanding, respectively 
Non-voting common stock, $0.01 par value, 20,000,000 shares 
   authorized, none issued and outstanding 
Preferred stock, $0.01 par value, 100,000,000 shares authorized, none 
   issued and outstanding 
Paid in capital 
Accumulated deficit 
Accumulated other comprehensive loss, net of tax 

TOTAL STOCKHOLDERS’ EQUITY 
TOTAL LIABILITIES & STOCKHOLDERS’ EQUITY 

  $ 

127     $ 

301      
204      
39      
671      
706      
917      
2,064      
46      
53      
4,457     $ 

179     $ 
33      
6      
37      
204      
459      
20      
99      
2,504      
514      
227      
3,823      

1      

—      

—      
1,832      
(1,126 )     
(73 )     
634      
4,457     $ 

310  

228  
181  
37  
756  
638  
963  
2,064  
—  
56  
4,477  

157  
36  
6  
34  
140  
373  
30  
109  
2,507  
442  
260  
3,721  

1  

—  

—  
1,818  
(974 ) 
(89 ) 
756  
4,477  

The accompanying notes are an integral part of the consolidated financial statements.

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Allison Transmission Holdings, Inc. 
Consolidated Statements of Comprehensive Income 
(dollars in millions, except per share data) 

Net sales 
Cost of sales 
Gross profit 
Selling, general and administrative 
Engineering — research and development 
Environmental remediation 
Operating income 
Interest expense, net 
Other income (expense), net 
Income before income taxes 
Income tax expense 
Net income 
Basic earnings per share attributable to common 
   stockholders 
Diluted earnings per share attributable to common 
   stockholders 
Other comprehensive income (loss), net of tax: 

Available-for-sale securities and interest rate swaps 
Pension and OPEB liability adjustment 
Foreign currency translation 

Total other comprehensive income (loss), net of tax 
Comprehensive income, net of tax 

2021 

Years ended December 31, 
2020 

2019 

2,402     $ 
1,257      
1,145      
305      
171      
—      
669      
(116 )    
19      
572      
(130 )    
442     $ 

2,081     $ 
1,083      
998      
317      
147      
—      
534      
(137 )    
(4 )    
393      
(94 )    
299     $ 

2,698  
1,304  
1,394  
356  
154  
(8 ) 
892  
(134 ) 
10  
768  
(164 ) 
604  

4.13     $ 

2.62     $ 

4.95  

4.13     $ 

2.62     $ 

4.91  

22      
2      
(8 )    
16      
458     $ 

(20 )    
(27 )    
10      
(37 )    
262     $ 

(19 ) 
—  
(3 ) 
(22 ) 
582  

  $ 

  $ 

  $ 

  $ 

  $ 

The accompanying notes are an integral part of the consolidated financial statements.

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Allison Transmission Holdings, Inc. 
Consolidated Statements of Cash Flows 
(dollars in millions) 

CASH FLOWS FROM OPERATING ACTIVITIES: 
Net income 
Adjustments to reconcile net income to net cash provided by 
   operating activities: 

2021 

Years ended December 31, 
2020 

2019 

  $ 

442     $ 

299     $ 

604  

Depreciation of property, plant and equipment 
Deferred income taxes 
Amortization of intangible assets 
Stock-based compensation 
Amortization of deferred financing costs 
Unrealized gain on marketable securities 
Technology-related investments gain 
Expenses related to long-term debt refinancing 
Other 

Changes in assets and liabilities: 

Accounts receivable 
Inventories 
Accounts payable 
Other assets and liabilities 

Net cash provided by operating activities 

CASH FLOWS FROM INVESTING ACTIVITIES: 

Additions of long-lived assets 
Investment in marketable securities 
Loans to third parties 
Repayments from loans to third parties 
Investments in technology-related initiatives 
Business acquisitions 

Net cash used for investing activities 
CASH FLOWS FROM FINANCING ACTIVITIES: 

Repurchases of common stock 
Dividend payments 
Payments on long-term debt 
Payment of acquisition-related contingent liability 
Taxes paid related to net share settlement of equity awards 
Proceeds from exercise of stock options 
Issuance of long-term debt 
Repayments on revolving credit facility 
Borrowings on revolving credit facility 
Debt financing fees 

Net cash used for financing activities 

Effect of exchange rate changes on cash 

Net (decrease) increase in cash and cash equivalents 

Cash and cash equivalents at beginning of period 
Cash and cash equivalents at end of period 
Supplemental disclosures: 
Interest paid 
Income taxes paid 

  $ 

  $ 
  $ 

104      
64      
46      
14      
4      
(4 )    
(3 )    
—      
—      

(78 )    
(26 )    
24      
48      
635      

(175 )    
(41 )    
(12 )    
12      
4      
—      
(212 )    

(513 )    
(81 )    
(7 )    
(3 )    
(3 )    
3      
—      
—      
—      
—      
(604 )    
(2 )    
(183 )    
310      
127     $ 

103     $ 
60     $ 

96      
69      
52      
17      
4      
—      
—      
19      
3      

28      
21      
(4 )    
(43 )    
561      

(115 )    
—      
—      
—      
—      
4      
(111 )    

(225 )    
(78 )    
(1,019 )    
(3 )    
(2 )    
2      
1,000      
(800 )    
800      
(10 )    
(335 )    
3      
118      
192      
310     $ 

81  
65  
86  
13  
5  
—  
—  
5  
3  

37  
(11 ) 
(25 ) 
(16 ) 
847  

(172 ) 
—  
—  
—  
(1 ) 
(232 ) 
(405 ) 

(393 ) 
(73 ) 
(1,151 ) 
—  
(4 ) 
5  
1,148  
(90 ) 
90  
(12 ) 
(480 ) 
(1 ) 
(39 ) 
231  
192  

136     $ 
26     $ 

125  
89  

The accompanying notes are an integral part of the consolidated financial statements.

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Allison Transmission Holdings, Inc. 
Consolidated Statements of Stockholders’ Equity 
(dollars in millions) 

  $ 

Balance at December 31, 2018 
Stock-based compensation 
Foreign currency translation 
adjustment 
Available-for-sale securities 
and interest rate swaps 
Issuance of common stock 
Repurchase of common stock    
Dividends on common stock 
Impact of adopting accounting 
standards 
Net income 

  $ 

Balance at December 31, 2019 
Stock-based compensation 
Pension and OPEB liability 
adjustment 
Foreign currency translation 
adjustment 
Interest rate swaps 
Issuance of common stock 
Repurchase of common stock    
Dividends on common stock 
Net income 

  $ 

Balance at December 31, 2020 
Stock-based compensation 
Pension and OPEB liability 
adjustment 
Foreign currency translation 
adjustment 
Interest rate swaps 
Repurchase of common stock    
Dividends on common stock 
Net income 

Balance at December 31, 2021 

  $ 

Non- 
voting 
Common 
Stock 

Common 
Stock 

1     $ 
—      

—    $ 
—     

Preferred 
Stock 

Paid-in 
Capital 
—     $  1,788     $ 
—      

13      

Accumulated 
Deficit 

Accumulated 
Other 
Comprehensive 
Loss, net of tax     

Stockholders’ 
Equity 

—      

—     

—      

—      

—      
—      
—      
—      

—      
—      
1     $ 
—      

—     
—     
—     
—     

—     
—     
—    $ 
—     

—      
—      
—      
—      

—      
1      
—      
—      

—      
—      

—      
—      
—     $  1,802     $ 
—      

17      

(1,100)   $ 

—     

—     

—     
—     
(393)    
(73)    

(8)    
604     
(970)   $ 
—     

(30 )   $ 
—      

(3 )    

(19 )    
—      
—      
—      

—      
—      
(52 )   $ 
—      

—      

—     

—      

—      

—     

(27 )    

—      
—      
—      
—      
—      
—      
1     $ 
—      

—     
—     
—     
—     
—     
—     
—    $ 
—     

—      
—      
(1 )    
—      
—      
—      

—      
—      
—      
—      
—      
—      
—     $  1,818     $ 
—      

14      

—     
—     
—     
(225)    
(78)    
299     
(974)   $ 
—     

10      
(20 )    
—      
—      
—      
—      
(89 )   $ 
—      

—      

—     

—      

—      

—     

2      

2  

—      
—      
—      
—      
—      
1     $ 

—     
—     
—     
—     
—     
—    $ 

—      
—      
—      
—      
—      
—     $  1,832     $ 

—      
—      
—      
—      
—      

—     
—     
(513)    
(81)    
442     
(1,126)   $ 

(8 )    
22      
—      
—      
—      
(73 )   $ 

(8 ) 
22  
(513 ) 
(81 ) 
442  
634  

659  
13  

(3 ) 

(19 ) 
1  
(393 ) 
(73 ) 

(8 ) 
604  
781  
17  

(27 ) 

10  
(20 ) 
(1 ) 
(225 ) 
(78 ) 
299  
756  
14  

The accompanying notes are an integral part of the consolidated financial statements.

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NOTE 1.   OVERVIEW 

Overview 

Allison Transmission Holdings, Inc. 
Notes to Consolidated Financial Statements 

Throughout 2021, the COVID-19 pandemic continued to cause supply chain, labor and raw material 

constraints that created volatility in Allison Transmission Holdings, Inc. and its subsidiaries' (“Allison,” or the 
“Company”) business performance and impacted global markets and supply chains. As a result, the Company 
experienced, and expect to continue to experience, raw material and component part price inflation, increased 
freight and logistics costs and increased overtime expense as a result of labor shortages. In addition, despite 
increased customer demand the Company's net sales for 2021 were negatively impacted as a result of its 
customers’ inability to secure components from the broader commercial vehicle supply base which resulted in 
reduced commercial vehicle build schedules. 

To limit the spread of COVID-19, governments continue to take various actions including the administration or 
mandate of vaccinations, travel bans and restrictions, quarantines, curfews, stay-at-home orders, social distancing 
guidelines and business shutdowns and closures. The Company is also continuing to take a variety of measures to 
promote the safety and security of its employees and to maintain operations with as minimal impact as possible to 
its stakeholders, and as a result, the Company has been able to continue its manufacturing operations and deliver 
its products to customers 

The Company designs and manufactures vehicle propulsion solutions, including commercial-duty on-highway, 

off-highway and defense fully automatic transmissions and electric hybrid and fully electric systems. The business 
was founded in 1915 and has been headquartered in Indianapolis, Indiana since inception. Allison trades on the 
New York Stock Exchange under the symbol, “ALSN”. 

The Company has approximately 3,400 employees. Although approximately 76% of revenues were generated 

in North America in 2021, the Company has a global presence by serving customers in Asia, Europe, South 
America and Africa. The Company serves customers through an independent network of approximately 1,400 
independent distributor and dealer locations worldwide. 

NOTE 2.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

Basis of Presentation and Principles of Consolidation 

The consolidated financial statements have been prepared in accordance with accounting principles generally 

accepted in the United States of America (“GAAP”). The information herein reflects all normal recurring material 
adjustments, which are, in the opinion of management, necessary for a fair statement of the results for the periods 
presented. The consolidated financial statements herein consist of all wholly-owned domestic and foreign 
subsidiaries with all significant intercompany transactions eliminated. 

These consolidated financial statements present the financial position, results of comprehensive income, cash 

flows and statements of stockholders’ equity. Certain immaterial reclassifications have been made in the 
consolidated financial statements of prior periods to conform to the current period presentation. These 
reclassifications had no impact on previously reported net income, total stockholders’ equity or cash flows. 

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Use of Estimates 

The preparation of financial statements in conformity with GAAP requires management to make estimates and 

assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities 
and the reported amounts of revenue and expenses. Estimates include, but are not limited to, sales allowances, 
government price adjustments, fair market values and future cash flows associated with goodwill, indefinite life 
intangibles, definite life intangibles, long-lived asset impairment tests, useful lives for depreciation and amortization, 
warranty liabilities, core deposit liabilities, environmental liabilities, determination of discount rate and other 
assumptions for pension and other post-retirement benefits (“OPEB”) expense, determination of discount rate and 
period for leases, income taxes and deferred tax valuation allowances, derivative valuation, assumptions for 
business combinations and contingencies. The Company’s accounting policies involve the application of judgments 
and assumptions made by management that include inherent risks and uncertainties. Due to the continued 
uncertainty related to the ongoing COVID-19 pandemic, actual results could differ materially from these estimates 
and assumptions used in preparation of the financial statements including, but not limited to, future cash flows 
associated with goodwill, indefinite life intangibles, definite life intangibles, long-lived impairment tests, 
determination of discount rate and other assumptions for pension and OPEB expense and income taxes. Changes 
in estimates are recorded in results of operations in the period that the events or circumstances giving rise to such 
changes occur. 

Segment Reporting 

In accordance with the Financial Accounting Standards Board’s (“FASB”) authoritative accounting guidance on 

segment reporting, the Company has one operating segment and reportable segment. The Company is in one line 
of business, which is the manufacture and distribution of vehicle propulsion solutions. 

Business Combinations 

The Company uses the acquisition method to account for business combinations. The assets acquired and 

liabilities assumed are recorded at their respective estimated fair value at the date of acquisition. Any excess 
purchase price over the fair values of the acquired net assets is recorded as goodwill. Determining the fair values of 
assets acquired and liabilities assumed requires management's judgment and includes the use of estimates with 
respect to timing and amount of future cash flows, market rate assumptions, actuarial assumptions, appropriate 
discount rates and other relevant factors. 

Cash and Cash Equivalents 

Cash equivalents are defined as short-term, highly-liquid investments with original maturities of 90 days or 
less. Under the Company’s cash management system, checks issued but not presented to banks may result in 
book overdraft balances for accounting purposes and are classified within Accounts payable in the Consolidated 
Balance Sheets. The change in book overdrafts is reported as a component of operating cash flows for Accounts 
payable. 

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Investments 

Investments in equity securities with a readily determinable fair value, not accounted for under the equity 
method, are recorded at that value with unrealized gains and losses included in earnings. For equity securities 
without a readily determinable fair value, the investment is recorded at cost, less any impairment, plus or minus 
adjustments related to observable transactions for the same or similar securities, with unrealized gains and losses 
included in earnings. The Company's investments in equity securities had a readily determinable fair value and 
were recorded at fair value with unrealized gains and losses included in Other income (expense), net. See "NOTE 
7. Fair Value of Financial Instruments" for more details. 

Inventories 

Inventories are stated at the lower of cost or net realizable value. The Company determines cost using the 
first-in, first-out method. The Company analyzes inventory on a quarterly basis to determine whether it is excess or 
obsolete inventory. Any decline in carrying value of estimated excess or obsolete inventory is recorded as a 
reduction of inventory and as an expense included in Cost of sales in the period it is identified. 

Property, Plant and Equipment 

Property, plant and equipment are recorded at cost less accumulated depreciation. Depreciation expense is 

recorded using the straight-line method over the following estimated lives: 

Land improvements 
Buildings and building improvements 
Machinery and equipment 
Software 
Special tooling 

Range in 
Years 
5 – 30 
10 – 40 
2 – 20 
2 – 5 
2 – 10 

Software represents the costs of software developed or obtained for internal use. Software costs are 
amortized on a straight-line basis over their estimated useful lives. Software assets are reviewed for impairment 
when events or circumstances indicate that the carrying value may not be recoverable over the remaining lives of 
the assets. Upgrades and enhancements are capitalized if they result in added functionality, which enables the 
software to perform tasks it was previously incapable of performing. Software maintenance, training, data 
conversion and business process reengineering costs are expensed in the period in which they are incurred. 

Special tooling represents the costs to design and develop tools, dies, jigs and other items owned by the 

Company and used in the manufacture of components by suppliers under long-term supply agreements. Special 
tooling is depreciated over the tool’s expected life. Special tooling used in the development of new technology is 
expensed as incurred. Engineering, testing and other costs incurred in the design and development of production 
parts are expensed as incurred. 

Impairment of Long-Lived Assets 

The carrying value of long-lived assets is evaluated whenever events or circumstances indicate that the 

carrying value of an asset may not be recoverable. Events or circumstances that would result in an impairment 
review primarily include a significant change in the use of an asset or the planned sale or disposal of an asset. The 
asset would be considered impaired when there is no future use planned for the asset or the future net 
undiscounted cash flows generated by the asset or asset group are less than its carrying value. An impairment loss 
would be recognized based on the amount by which the carrying value exceeds fair value. 

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Assumptions and estimates used to determine cash flows in the evaluation of impairment and the fair values 

used to determine the impairment are subject to a degree of judgment and complexity. Any changes to the 
assumptions and estimates resulting from changes in actual results or market conditions from those anticipated 
may affect the carrying value of long-lived assets and could result in an impairment charge. 

Goodwill and Other Intangible Assets 

The Company has elected to perform its annual impairment tests for goodwill and indefinite lived intangible 
assets on October 31 of every year using a multi-step impairment test. In Step 0, the Company has the option to 
evaluate various qualitative factors to determine the likelihood of impairment. If the Company determines that the 
fair value is more likely than not less than the carrying value, then it is required to perform Step 1. If the Company 
does not elect to perform Step 0, it can voluntarily proceed directly to Step 1. In Step 1, the Company performs a 
quantitative analysis to compare the fair value to its carrying value. If the fair value exceeds the carrying value, no 
impairment is recorded, and the Company is not required to perform further testing. If the carrying value exceeds 
fair value, the Company would record an impairment loss equal to the difference. 

A qualitative assessment contains uncertainties because it requires management to make assumptions and to 
apply judgment to assess business changes, economic outlook, financial trends and forecasts, growth rates, credit 
ratings, equity ratings, discount rates, industry data and other relevant qualitative factors. 

A quantitative analysis contains uncertainties because it is performed utilizing a discounted cash flow model 

which includes key assumptions, such as financial forecasts; net sales growth derived from market information, 
industry reports, marketing programs and future new product introductions; operating margin improvements derived 
from cost reduction programs and fixed cost leverage driven by higher sales volumes; and a risk-adjusted discount 
rate.  

Goodwill represents the excess of purchase price paid over the fair value of net assets acquired. In 
accordance with the FASB’s authoritative accounting guidance on goodwill, the Company does not amortize 
goodwill but rather evaluates it for impairment on an annual basis, or more often if events or circumstances change 
that could cause goodwill to become impaired. Goodwill is tested for impairment at the reporting unit level, which is 
the same as the Company's one operating and reportable segment. The Company does not aggregate any 
components into its reporting unit.  

Goodwill impairment testing for 2021 was performed using the Step 0 analysis by assessing certain qualitative 
trends and factors. These trends and factors were compared to, and based on, the assumptions used in prior years. 
After reviewing the various qualitative factors mentioned above, the Company's 2021 annual goodwill impairment 
test indicated that the fair value for the reporting unit more likely than not exceeded its carrying value, indicating no 
impairment. 

Other intangible assets have both indefinite and finite useful lives. Intangible assets with indefinite useful lives 

are not amortized but are tested annually for impairment, or more often if events or circumstances change that 
could cause intangible assets with indefinite useful lives to become impaired. After reviewing the various qualitative 
factors mentioned above, the Company's annual 2021 indefinite lived intangible assets impairment tests, as of 
October 31, 2021, indicated that the fair value of its indefinite lived intangible assets more likely than not exceeded 
their respective carrying value, indicating no impairment. 

Intangible assets with finite lives are amortized over their estimated useful lives and reviewed for impairment 

when circumstances change that would create a triggering event. Customer relationships are amortized over the life 
in which expected benefits are to be consumed. The other remaining finite life intangibles are amortized on a 
straight-line basis over their useful lives. The Company evaluates the remaining useful life of the other intangible 
assets on a periodic basis to determine whether events or circumstances warrant a revision to the remaining useful 

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life. Assumptions and estimates about future values and remaining useful lives of the Company's intangible and 
other long-lived assets are complex and subjective. Such assumptions and estimates can be affected by a variety of 
factors, including external factors such as industry and economic trends, and internal factors, such as changes in 
the Company's business strategy and internal forecasts. Although management believes the historical assumptions 
and estimates are reasonable and appropriate, different assumptions and estimates could materially impact the 
Company's reported financial results. Further information is provided in "NOTE 6. Goodwill and Other Intangible 
Assets.”  

Deferred Financing Costs 

The debt issuance costs related to line-of-credit arrangements is presented as a component of other non-
current assets. The debt issuance costs related to other types of debt instruments such as notes and loans are 
presented as a component of long-term debt. Deferred financing costs continue to be amortized over the life of the 
related debt using the effective interest method. Amortization of deferred financing costs is recorded as part of 
interest expense and totaled $4 million, $4 million and $5 million for the years ended December 31, 2021, 2020 and 
2019, respectively. 

Financial Instruments 

The Company’s cash equivalents are invested in U.S. government backed securities and recorded at fair 

value in the Consolidated Balance Sheets. The Company's marketable securities are carried at fair value on the 
Consolidated Balance Sheets. The Company’s financial derivative instruments, including interest rate swaps, are 
carried at fair value on the Consolidated Balance Sheets. Refer to "NOTE 7. Fair Value of Financial Instruments” for 
more detail. The Company’s long-term debt obligations are carried at historical amounts with the Company 
providing fair value disclosure in "NOTE 8. Debt”. The carrying values of accounts receivable and accounts payable 
approximate fair value due to their short-term nature.  

Insurable Liabilities 

The Company records liabilities for its medical, workers’ compensation, long-term disability, product, general 
and auto liabilities. The determination of these liabilities and related expenses is dependent on claims experience. 
For most of these liabilities, claims incurred but not yet reported are estimated based upon historical claims 
experience. 

Revenue Recognition 

The Company records sales as each distinct performance obligation within a contract is satisfied. The 
Company sells extended transmission coverage (“ETC”) for which sales are deferred. ETC sales are recognized 
ratably over the period of coverage, which typically ranges from one to five years after the standard warranty 
coverage ends. Costs associated with ETC programs are recorded as incurred during the extended period. 
Distributor and customer sales incentives, consisting of allowances and other rebates, are recorded as a reduction 
to Net sales when it is determined that the adjustment is not likely to reverse, historically on a quarterly basis. 
Incentive programs are generally product specific or region specific. Some factors used in estimating when an 
adjustment is not likely to reverse are the number of transmissions that will be affected by the incentive program 
and rate of acceptance of any incentive program.  

Sales under U.S. government production contracts are recognized at the point in time when control passes to 
the customer, or when the U.S. government accepts the transmission and is able to direct its use in certain bill-and-
hold arrangements. Deferred revenue arises from cash received in advance of the culmination of the earnings 
process and is recognized as revenue in future periods when the applicable revenue recognition criteria have been 

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met. Under the terms of previous U.S. government contracts, there were certain price reduction clauses and 
provisions for potential price reductions which were estimated at the time of sale based upon the Company’s history 
and experience and were recorded as a reduction to Net sales. Potential reductions may be attributed to a change 
in projected sales volumes or plant efficiencies which impact overall costs. The Company had $56 million recorded 
in the price reduction reserve account as of each of December 31, 2021 and 2020. 

The Company engages in licensing agreements with certain third parties for the use of the Company’s 
intellectual property. Deferred revenue arises from cash received in advance of the period of use of the intellectual 
property. Revenue is recognized over the license period as it is earned. 

The Company classifies shipping and handling billed to customers in Net sales and shipping and handling 

costs in Cost of sales, in accordance with authoritative accounting guidance. 

The Company contracts with various third parties to provide engineering services. These services are 
recorded as Net sales in accordance with the terms of the contract. The saleable engineering recorded was $21 
million, $16 million and $11 million for the years ended December 31, 2021, 2020 and 2019, respectively. The 
associated costs are recorded in Cost of sales. 

Warranty 

Provisions for estimated expenses related to product warranties are made at the time products are sold. 
Warranty claims arise when a transmission or propulsion solution manufactured by us fails while in service during 
the relevant warranty period. The warranty reserve is adjusted in Selling, general and administrative expense based 
on the Company’s current and historical warranty claims paid and associated repair costs. These estimates are 
established using historical information including the nature, frequency, and average cost of warranty claims and 
are adjusted as actual information becomes available. From time to time, the Company may initiate a specific field 
action program. As a result of the uncertainty surrounding the nature and frequency of specific field action 
programs, the liability for such programs is recorded when the Company commits to an action. The Company 
reviews and assesses the liability for these programs on a quarterly basis. The Company also assesses its ability to 
recover certain costs from its suppliers and records a receivable from the supplier when it believes a recovery is 
probable. Warranty costs may differ from those estimated if actual claim rates are higher or lower than the 
Company's historical rates. 

Research and Development 

The Company incurs costs in connection with research and development programs that are expected to 

contribute to future earnings. Such costs are charged to Engineering — research and development as incurred. 

Environmental 

The Company accrues costs related to environmental matters when it is probable that the Company has 

incurred a liability related to a contaminated site and the costs can be reasonably estimated. For additional 
information, see "NOTE 18. Commitments and Contingencies”. 

Foreign Currency Translation 

Most of the Company’s subsidiaries outside the United States prepare financial statements in currencies other 

than the U.S. Dollar. The functional currency for all of these subsidiaries is the local currency, except for the 
Company’s Hong Kong and Middle East subsidiaries which currently use the U.S. Dollar as their functional 
currency. Balances are translated at period-end exchange rates for assets and liabilities and monthly weighted-
average exchange rates for revenues and expenses. The translation gains and losses are stated as a component of 

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Accumulated Other Comprehensive Loss (“AOCL”) as disclosed in "NOTE 17. Accumulated Other Comprehensive 
Loss”. 

Derivative Instruments 

In the normal course of business, the Company is exposed to fluctuations in interest rates, foreign currency 
exchange rates, and commodity prices. The risk is managed through the use of financial derivative instruments, 
when appropriate. The Company has qualified for and elected hedge accounting treatment on interest rate swap 
contracts. As necessary, the Company adjusts the values of the derivative instruments for counter-party or credit 
risk. "NOTE 9. Derivatives” provides further information on the accounting treatment of the Company’s derivative 
instruments. 

Income Taxes 

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are 
recognized for the expected future tax consequences attributable to temporary differences between the financial 
statement carrying amounts of existing assets and liabilities and their respective tax bases. The future tax benefits 
associated with operating loss and tax credit carryforwards are recognized as deferred tax assets. Deferred tax 
assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in 
which those temporary differences are expected to be recovered or settled. When releasing income tax effects from 
accumulated other comprehensive loss the Company utilizes the portfolio securities approach. 

The need to establish a valuation allowance against the deferred tax assets is assessed periodically based on 

a more-likely-than-not realization threshold, in accordance with the FASB’s authoritative accounting guidance on 
income taxes. Appropriate consideration is given to all positive and negative evidence related to that realization. 
This assessment considers, among other matters, the nature, frequency and severity of recent losses, forecasts of 
future profitability, the duration of statutory carryforward periods, and experience with tax attributes expiring unused 
and tax planning alternatives. The weight given to these considerations depends upon the degree to which they can 
be objectively verified. 

Stock-Based Compensation 

In March 2015, the Company’s Board of Directors adopted, and in May 2015, the Company’s stockholders 

approved, the Allison Transmission Holdings, Inc. 2015 Equity Incentive Award Plan (“2015 Plan”), which became 
effective on May 14, 2015. Under the 2015 Plan, certain employees (including executive officers), consultants and 
directors are eligible to receive equity-based compensation, including non-qualified stock options, incentive stock 
options, restricted stock, dividend equivalents, stock payments, restricted stock units (“RSUs”), performance 
awards, stock appreciation rights and other equity-based awards, or any combination thereof. The 2015 Plan limits 
the aggregate number of shares of common stock available for issue to 15 million and will expire on, and no option 
or other equity award may be granted pursuant to the 2015 Plan after, the tenth anniversary of the date the 2015 
Plan was approved by the Board of Directors. 

Prior to the adoption of the 2015 Plan, the Company’s equity-based awards were granted under the Allison 
Transmission Holdings, Inc. 2011 Equity Incentive Award Plan (“Prior Plan”). As of the effective date of the 2015 
Plan, no new awards will be granted under the Prior Plan, but the Prior Plan will continue to govern the equity 
awards issued under the Prior Plan. 

RSU grants are recorded at fair market value at the date of grant and vest upon continued performance of 
services by the RSU holders over one to three years. Performance unit grants are recorded at fair value based on a 
Monte-Carlo pricing model and the restrictions lapse on the date the Compensation Committee of the Board of 
Directors determines the number of shares that shall vest based on the related performance or market condition 

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achievement. Non-qualified stock option grants are recorded at fair value using a Black-Scholes option pricing 
model and vest upon the continued performance of services by the option holder on the third anniversary of the 
grant date for awards under the 2015 Plan. 

The Company has made a policy election under applicable accounting guidance to account for forfeitures as a 

reduction of stock-based compensation expense when the forfeiture actually occurs. 

RSUs were granted to certain employees and directors at fair market value on the date of grant. The 

restrictions lapse upon continued performance by the RSU holder on the vest date which generally occurs over one, 
two or three years. RSU incentive compensation expense recorded was $6 million, $6 million and $5 million for the 
years ended December 31, 2021, 2020 and 2019, respectively. 

Performance-based awards, including performance units, were granted to certain employees at fair value at 
the date of grant. The Company records the fair value of each performance-based award based on a Monte-Carlo 
pricing model. Performance-based award incentive compensation expense recorded was $5 million, $9 million and 
$6 million for the years ended December 31, 2021, 2020 and 2019, respectively. 

Stock options were granted to certain employees at fair value on the date of grant using a Black-Scholes 
option pricing model. Stock option incentive compensation expense recorded was $3 million for the year ended 
December 31, 2021 and $2 million for each of the years ended December 31, 2020 and 2019. 

Pension and Post-retirement Benefit Plans 

For pension and OPEB plans in which employees participate, costs are determined within the FASB’s 
authoritative accounting guidance set forth in employers’ defined benefit pensions including accounting for 
settlements and curtailments of defined benefit pension plans, termination of benefits and accounting for post-
retirement benefits other than pensions. In accordance with the authoritative accounting guidance, the Company 
recognizes the funded status of its defined benefit pension plans and OPEB plan in its Consolidated Balance 
Sheets with a corresponding adjustment to AOCL, net of tax. 

Post-retirement benefit costs consist of service cost and interest cost on accrued obligations. Actuarial gains 

and losses on liabilities, together with any prior service costs, are charged (or credited) to income over the average 
remaining service lives of employees. 

The benefit cost components shown in the Consolidated Statements of Comprehensive Income are based 

upon various actuarial assumptions and methodologies as prescribed by authoritative accounting guidance. These 
assumptions include discount rates, expected return on plan assets, health care cost trend rates, inflation, rate of 
compensation increases, population demographics, mortality rates and other factors. The Company reviews all 
actuarial assumptions on an annual basis. Changes in key economic indicators can change these assumptions. 
These assumptions, along with the actual value of assets at the measurement date, will impact the calculation of 
pension expenses for the following year. 

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Recently Adopted Accounting Pronouncements 

In March 2020, the FASB issued authoritative accounting guidance regarding highly effective cash flow 
hedges affected by reference rate reform, which guidance was subsequently amended. The guidance allows the 
Company to continue to classify its interest rate hedges as highly effective subsequent to reference rate reform 
under certain circumstances. The Company adopted this guidance effective January 1, 2021 and will apply the 
guidance prospectively on all applicable transactions through December 31, 2022. Management expects to be able 
to elect the optional expedient within this guidance upon the Company’s transition from the London Interbank 
Offered Rate ("LIBOR") to an alternative reference rate. The election of the optional expedient is expected to allow 
for the continuation of the existing contract with no impact on the Company’s consolidated financial statements. 

In December 2019, the FASB issued authoritative accounting guidance to simplify the accounting for income 

taxes. The guidance identifies specific exceptions to be removed from the calculation and reporting of income taxes. 
The Company adopted this guidance effective January 1, 2021. The adoption of this guidance did not have a 
material impact on the Company's consolidated financial statements.  

Recently Issued Accounting Pronouncements 

In October 2021, the FASB issued authoritative accounting guidance that requires contract assets and 
contract liabilities acquired in a business combination to be recognized as if the acquirer originated the contracts. 
The guidance will be effective for the Company in fiscal year 2023, and the Company does not plan to early adopt. 
The guidance will be applied prospectively to acquisitions occurring on or after the effective date. 

NOTE 3.   REVENUE 

Revenue is recognized as each distinct performance obligation within a contract is satisfied. A performance 

obligation is a promise in a contract to transfer a distinct good or service to the customer. The Company enters into 
long-term agreements (“LTAs”) and distributor agreements with certain customers. The LTAs and distributor 
agreements do not include committed volumes until underlying purchase orders are issued; therefore, the Company 
determined that purchase orders are the contract with a customer. A contract’s transaction price is allocated to each 
distinct performance obligation and recognized as revenue when the performance obligation is satisfied, as there is 
no right of return. 

Some of the Company's contracts include multiple performance obligations, most commonly the sale of both a 

transmission and ETC. The Company allocates the contract’s transaction price to each performance obligation 
based on the standalone selling price of each distinct good or service in the contract. 

The Company may also use volume-based discounts and rebates as marketing incentives in the sales of both 

vehicle propulsion solutions and service parts, which are accounted for as variable consideration. The Company 
records the impact of the incentives as a reduction to revenue when it is determined that the adjustment is not likely 
to reverse, historically on a quarterly basis. The Company estimates the impact of all other incentives based on the 
related sales and market conditions in the end market vocation. The Company recorded no material adjustments 
based on variable consideration during either of the years ended December 31, 2021 and 2020. 

Net sales are made on credit terms, generally 30 days, based on an assessment of the customer’s 

creditworthiness. For certain goods or services, the Company receives consideration prior to satisfying the related 
performance obligation. Such consideration is recorded as a contract liability in current and non-current deferred 
revenue as of December 31, 2021 and December 31, 2020. See "NOTE 11. Deferred Revenue” for more 
information including the amount of revenue earned during the year ended December 31, 2021 that had been 
previously deferred. The Company had no material contract assets as of either December 31, 2021 and 2020. 

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The Company has one operating segment and reportable segment. The Company is in one line of business, 

which is the manufacture and distribution of vehicle propulsion solutions. The following presents disaggregated 
revenue by categories that best depict how the nature, amount, timing and uncertainty of revenue and cash flows 
are affected by economic factors (dollars in millions): 

North America On-Highway 
North America Off-Highway 
Defense 
Outside North America On-Highway 
Outside North America Off-Highway 
Service Parts, Support Equipment and Other 
Total Net Sales 

Year ended 
December 31, 
2021 

Year ended 
December 31, 
2020 

  $ 

  $ 

1,177  
58  
186  
381  
83  
517  
2,402  

  $ 

  $ 

1,081  
13  
182  
280  
61  
464  
2,081  

Disaggregated revenue by end market is further described as follows: 

North America On-Highway 

Revenue from the North America On-Highway end market is driven by the sale of propulsion solutions to 
original equipment manufacturers (“OEMs”), distributors and dealers that install the product into Class 4-5, Class 6-
7 and Class 8 straight trucks, Class 8 day cab tractors, conventional transit, shuttle and coach buses, school buses 
and motorhome applications. Revenue is recognized at the point in time when control passes to the customer, 
which is based on shipping terms when the order is fulfilled by the Company. 

North America Off-Highway 

Revenue from the North America Off-Highway end market is driven by sales of transmissions to OEMs and 

distributors that serve end users who operate vehicles and auxiliary equipment in energy, mining and construction 
applications. Revenue is recognized at the point in time when control passes to the customer, which is based on 
shipping terms when the order is fulfilled by the Company. 

Defense 

Revenue from the Defense end market is driven by sales of propulsion solutions to the U.S. Government or its 

contractors and sales to certain government contractors outside of the U.S. for use in both wheeled and tracked 
defense vehicle applications. Revenue is recognized at the point in time when control passes to the customer, 
which is based on shipping terms when the order is fulfilled by the Company. 

Periodically, the Company and the U.S. Government will enter into a bill-and-hold arrangement where a 

completed transmission physically remains at the Company’s facility at the request of the U.S. Government. 
Revenue is recognized at the point in time when it is determined that the U.S. Government accepts the transmission 
and is able to direct its use. 

Outside North America On-Highway 

Revenue from the Outside North America On-Highway end market is driven by the sale of propulsion solutions 

to OEMs and distributors that produce vehicles for commercial users in medium- and heavy-duty applications. 
Revenue is recognized at the point in time when control passes to the customer, which is based on shipping terms 
when the order is fulfilled by the Company. 

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Outside North America Off-Highway 

Revenue from the Outside North America Off-Highway end market is driven by sales of transmissions to 
OEMs and distributors serving end users who operate vehicles and auxiliary equipment in energy, mining and 
construction applications. Revenue is recognized at the point in time when control passes to the customer, which is 
based on shipping terms when the order is fulfilled by the Company. 

Service Parts, Support Equipment and Other 

Revenue from the Service Parts, Support Equipment and Other end market is primarily derived from the sale 
of transmission parts and fluid purchased for the normal maintenance and repair needs of products in service, the 
sale of aluminum die cast components purchased as original parts and the sale of ETC contracts which extend the 
warranty coverages of propulsion solutions beyond the standard warranty period. 

Revenue is recognized on sales of service parts, support equipment and aluminum die cast components at the 

point in time when control passes to the customer, which is based on shipping terms when the order is fulfilled by 
the Company. 

Revenue from the sale of ETC contracts is recognized ratably over the time period that corresponds with the 
period of coverage, as the Company has determined this method best depicts the progress towards satisfaction of 
its performance obligation. ETC contracts are sold in one- to five-year durations within the North America On-
Highway, Outside North America On-Highway, North America Off-Highway and Outside North America Off-Highway 
end markets. The ETC contract period begins when the standard warranty coverage period ends. All consideration 
allocated to an ETC performance obligation is initially deferred until the coverage period begins. 

NOTE 4.   INVENTORIES 

Inventories consisted of the following components (dollars in millions): 

Purchased parts and raw materials 
Work in progress 
Service parts 
Finished goods 

Total inventories 

December 31, 
2021 

December 31, 
2020 

  $ 

  $ 

101 
8 
44 
51 
204 

  $ 

  $ 

88 
15 
43 
35 
181 

Inventory components shipped to third parties, primarily cores, parts to re-manufacturers, and parts to contract 

manufacturers, which the Company has an obligation to buy back, are included in purchased parts and raw 
materials, with an offsetting liability in other current liabilities. See "NOTE 14. Other Current Liabilities” for more 
information. 

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NOTE 5.   PROPERTY, PLANT AND EQUIPMENT 

The cost and accumulated depreciation of property, plant and equipment are as follows (dollars in millions): 

December 31, 
2021 

December 31, 
2020 

Land and land improvements 
Buildings and building improvements 
Machinery and equipment 
Software 
Special tooling 
Construction in progress 

Total property, plant and equipment 

Accumulated depreciation 

Property, plant and equipment, net 

  $ 

  $ 

  $ 

27 
492 
795 
188 
243 
83 
1,828 
(1,122)     
706 

  $ 

26 
423 
783 
175 
223 
54 
1,684 
(1,046) 
638 

Depreciation of property, plant and equipment was $104 million, $96 million and $81 million for the years 

ended December 31, 2021, 2020 and 2019, respectively. 

NOTE 6.   GOODWILL AND OTHER INTANGIBLE ASSETS 

As of each of December 31, 2021 and 2020, the carrying amount of the Company’s Goodwill was $2,064 

million. 

The following presents a summary of other intangible assets (dollars in millions): 

Other intangible assets: 
Trade name 
In process research and 
   development 
Customer relationships – 
   commercial 
Proprietary technology 
Customer relationships – 
   defense 
Total 

December 31, 2021 

December 31, 2020 

Intangible 
assets, gross   

Accumulated 
amortization    

Intangible 
assets, net     

Intangible 
assets, gross    

Accumulated 
amortization 

Intangible 
assets, net   

  $ 

791    $ 

—     $ 

791     $ 

791     $ 

—     $ 

791  

25     

—      

25      

25      

—      

839     
478     

(751 )    
(477 )    

88      
1      

839      
478      

(708 )    
(477 )    

62     
2,195    $ 

(50 )    
(1,278 )   $ 

12      
917     $ 

62      
2,195     $ 

(47 )    
(1,232 )   $ 

$ 

25  

131  
1  

15  
963  

Amortization of intangible assets was $46 million, $52 million and $86 million for the years ended December 

31, 2021, 2020 and 2019, respectively. 

As of December 31, 2021 and 2020, the net carrying value of the Company’s Goodwill and Other intangible 
assets, net was $2,981 million and $3,027 million, respectively. The Company’s 2021 annual goodwill impairment 
test indicated that the fair value of the reporting unit more likely than not exceeded its carrying value, indicating no 
impairment. The Company's 2021 annual indefinite lived intangible assets impairment test indicated that the fair 
value of the Company’s indefinite lived intangible assets more likely than not exceeded their carrying value, 
indicating no impairment. 

Amortization expense related to other intangible assets for the next five years is expected to be (dollars in 

millions): 

Amortization expense 

2022 

2023 

2024 

2025 

2026 

$ 

45  

 $ 

43  

 $ 

8   $ 

4  

 $ 

1  

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NOTE 7.   FAIR VALUE OF FINANCIAL INSTRUMENTS 

In accordance with the FASB’s authoritative accounting guidance on fair value measurements, fair value is the 

price (exit price) that would be received to sell an asset or paid to transfer a liability in an orderly transaction 
between market participants at the measurement date. The Company utilizes market data or assumptions that 
market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent 
in the inputs to the valuation technique. These inputs can be readily observable, market corroborated, or generally 
unobservable. The Company primarily applies the market approach for recurring fair value measurements and 
utilizes the best available information that maximizes the use of observable inputs and minimizes the use of 
unobservable inputs. The Company is able to classify fair value balances based on the observability of those inputs. 
The accounting guidance establishes a fair value hierarchy that prioritizes the inputs used to measure fair value. 
The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or 
liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The three 
levels of the fair value hierarchy defined by the relevant guidance are as follows: 

Level 1 — Quoted prices are available in active markets for identical assets or liabilities as of the reporting 

date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and 
volume to provide pricing information on an ongoing basis. Level 1 primarily consists of financial instruments such 
as exchange-traded derivatives, listed equities and publicly traded bonds. 

Level 2 — Pricing inputs are other than quoted prices in active markets included in Level 1, which are either 

directly or indirectly observable as of the reporting date. Level 2 includes financial instruments that are valued using 
quoted prices in markets that are not active and those financial instruments that are valued using models or other 
valuation methodologies. These models are primarily industry standard models that consider various assumptions, 
including quoted forward prices for commodities, time value, volatility factors, and current market and contractual 
prices for the underlying instruments, as well as other relevant economic measures. Substantially all of these 
assumptions are observable in the marketplace throughout the full term of the instrument, can be derived from 
observable data or are supported by observable levels at which transactions are executed in the marketplace. 

Level 3 — Pricing inputs include significant inputs that are generally less observable from objective sources. 
These inputs may be used with internally developed methodologies that result in management’s best estimate of 
fair value. At each balance sheet date, the Company performs an analysis of all instruments subject to authoritative 
accounting guidance and includes, in Level 3, all of those whose fair value is based on significant unobservable 
inputs. As of December 31, 2021 and 2020, the Company did not have any Level 3 financial assets or liabilities. 

The Company’s assets and liabilities that are measured at fair value include cash equivalents, marketable 

securities, derivative instruments, assets held in a rabbi trust and a deferred compensation obligation. The 
Company’s cash equivalents consist of short-term U.S. government backed securities. The Company's marketable 
securities consist of publicly traded stock of Jing-Jin Electric Technologies Co. Ltd., which has a readily 
determinable fair value. The Company’s derivative instruments consist of interest rate swaps. The Company’s 
assets held in the rabbi trust consist principally of publicly available mutual funds and target date retirement funds. 
The Company’s deferred compensation obligation is directly related to the fair value of assets held in the rabbi trust. 

The Company’s valuation techniques used to calculate the fair value of cash and cash equivalents, assets 

held in the rabbi trust and the deferred compensation obligation represent a market approach in active markets for 
identical assets that qualify as Level 1 in the fair value hierarchy. The Company’s valuation techniques used to 
calculate the fair value of derivative instruments represent a market approach with observable inputs that qualify as 
Level 2 in the fair value hierarchy. 

The Company uses valuations from the issuing financial institutions for the fair value measurement of interest 
rate swaps. The floating-to-fixed interest rate swaps are based on LIBOR which is observable at commonly quoted 

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intervals. The fair values are included in other current and non-current assets and liabilities in the Consolidated 
Balance Sheets. 

The following table summarizes the fair value of the Company’s financial assets and (liabilities) as of 

December 31, 2021 and 2020 (dollars in millions): 

Quoted Prices in Active 
Markets for Identical 
Assets (Level 1) 
2020 
2021 

Fair Value Measurements Using 
Significant Other 
Observable Inputs 
(Level 2) 

2021 

2020 

2021 

2020 

TOTAL 

Cash equivalents 
Marketable securities 
Derivative liabilities, net 
Rabbi trust assets 
Deferred compensation obligation 

Total 

 $ 

 $ 

—    $ 
46     
—     
19     
(19 )   
46    $ 

160    $ 
—     
—     
17     
(17 )   
160    $ 

—    $ 
—     
(31 )   
—     
—     
(31 )  $ 

—    $ 
—     
(60 )   
—     
—     
(60 )  $ 

—    $ 
46     
(31 )   
19     
(19 )   
15    $ 

160  
—  
(60 ) 
17  
(17 ) 
100  

NOTE 8.   DEBT 

Long-term debt and maturities are as follows (dollars in millions): 

Long-term debt: 
Senior Secured Credit Facility Term Loan, variable, due 2026 
Senior Notes, fixed 4.75%, due 2027 
Senior Notes, fixed 5.875%, due 2029 
Senior Notes, fixed 3.75%, due 2031 

Total long-term debt 

Less: current maturities of long-term debt 

deferred financing costs, net (see NOTE 2) 

Total long-term debt, net 

December 31, 
2021 

December 31, 
2020 

  $ 

  $ 

  $ 

631 
400 
500 
1,000 
2,531 
6 
21 
2,504 

  $ 

  $ 

  $ 

638 
400 
500 
1,000 
2,538 
6 
25 
2,507 

Principal payments required on long-term debt during the next five years are as follows: 

(dollars in millions) 
Payments 

2022 

2023 

2024 

2025 

2026 

$ 

6  

$ 

6  

$ 

6  

$ 

6  

$ 

607  

As of December 31, 2021, the Company had $2,531 million of indebtedness associated with Allison 

Transmission, Inc.’s (“ATI”), the Company’s wholly-owned subsidiary, ATI’s 4.75% Senior Notes due October 2027 
(“4.75% Senior Notes”), ATI’s 5.875% Senior Notes due June 2029 (“5.875% Senior Notes”), ATI’s 3.75% Senior 
Notes due January 2031 (“3.75% Senior Notes” and, together with the 4.75% Senior Notes and 5.875% Senior 
Notes, the “Senior Notes”) and the Second Amended and Restated Credit Agreement dated as of March 29, 2019, 
as amended (the “Credit Agreement”), governing ATI’s term loan facility in the amount of $631 million due March 
2026 (“Term Loan”) and ATI’s revolving credit facility with commitments in the amount of $650 million due 
September 2025 (“Revolving Credit Facility” and, together with the Term Loan, the “Senior Secured Credit Facility”). 

The fair value of the Company’s long-term debt obligations as of December 31, 2021 was $2,568 million. The 

fair value is based on quoted Level 2 market prices of the Company’s debt as of December 31, 2021. It is not 
expected that the Company would be able to repurchase a significant amount of its debt at these levels. The 
difference between the fair value and carrying value of the long-term debt is driven primarily by trends in the 
financial markets. 

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Senior Secured Credit Facility 

In March 2019, the Company and ATI entered into the Credit Agreement to reduce the commitments under the 

prior term loan due 2022 (“Prior Term Loan”) by $500 million and increase the commitments under the prior $550 
million revolving credit facility due 2021 (“Prior Revolving Credit Facility” and, together with the Prior Term Loan, the 
“Prior Senior Secured Credit Facility”) by $50 million. The Senior Secured Credit Facility also extended the maturity 
of the Prior Term Loan from 2022 to 2026 and extended the Prior Revolving Credit Facility termination date from 
2021 to 2024. The Senior Secured Credit Facility replaced the Prior Senior Secured Credit Facility, including the 
Prior Term Loan and Prior Revolving Credit Facility, on March 29, 2019. The Credit Agreement was treated as a 
modification to the Prior Senior Secured Credit Facility under GAAP, and thus the Company expensed $5 million of 
prior deferred financing fees and $1 million of related third party fees in the Consolidated Statement of 
Comprehensive Income for the year ended December 31, 2019 and recorded $5 million as new deferred financing 
fees in the Consolidated Balance Sheet in the first quarter of 2019.  

In October 2019, the Company and ATI entered into an amendment to the Credit Agreement with the Term 

Loan lenders under its Senior Secured Credit Facility to lower the applicable margins on the Term Loan by 0.25%. 
The October 2019 amendment was treated as a modification to the Senior Secured Credit Facility under GAAP. 

In November 2020, the Company and ATI entered into an amendment to the Credit Agreement to increase the 

commitments under the Revolving Credit Facility by $50 million to $650 million. The amendment also extended the 
Revolving Credit Facility termination date from September 2024 to September 2025.  

The borrowings under the Senior Secured Credit Facility are collateralized by a lien on substantially all assets 

of the Company, ATI and each of the existing and future U.S. subsidiary guarantors, with certain exceptions set 
forth in the Credit Agreement, and ATI’s capital stock and all of the capital stock or other equity interests held by the 
Company, ATI and each of ATI’s existing and future U.S. subsidiary guarantors (subject to certain limitations for 
equity interest of foreign subsidiaries and other exceptions set forth in the Credit Agreement). Interest on the Term 
Loan, as of December 31, 2021, is either (a) 1.75% over a LIBOR rate on deposits in U.S. dollars for one-, two-, 
three- or six-month periods (or twelve-month or shorter periods if, at the time of the borrowing, available from all 
relevant lenders) (the "LIBOR Rate"), or (b) 0.75% over the greater of the prime lending rate as quoted by the 
administrative agent, the LIBOR Rate for an interest period of one month plus 1.00% and the federal funds effective 
rate published by the Federal Reserve Bank of New York plus 0.50%, subject to a 1.00% floor (the "Base Rate"). As 
of December 31, 2021, the Company elected to pay the lowest all-in rate of LIBOR plus the applicable margin, or 
1.85%, on the Term Loan. The Credit Agreement requires minimum quarterly principal payments on the Term Loan 
starting with the fiscal quarter which ended September 30, 2019, as well as prepayments from certain net cash 
proceeds of non-ordinary course asset sales and casualty and condemnation events, the incurrence of certain debt 
and from a percentage of excess cash flow, if applicable. The minimum required quarterly principal payment on the 
Term Loan through its maturity date of March 2026 is $2 million. As of December 31, 2021, there had been no 
payments required for certain net cash proceeds of non-ordinary course asset sales and casualty and 
condemnation events. The remaining principal balance is due upon maturity. 

The Senior Secured Credit Facility also provides a Revolving Credit Facility, net of an allowance for up to $75 

million in outstanding letters of credit commitments. As of December 31, 2021, the Company had $645 million 
available under the Revolving Credit Facility, net of $5 million in letters of credit. Borrowings under the Revolving 
Credit Facility bear interest at a variable base rate plus an applicable margin based on the Company’s first lien net 
leverage ratio. When the Company’s first lien net leverage ratio is above 4.00x, interest on the Revolving Credit 
Facility is (a) 0.75% over the Base Rate or (b) 1.75% over the LIBOR Rate; when the Company’s first lien net 
leverage ratio is equal to or less than 4.00x and above 3.50x, interest on the Revolving Credit Facility is (i) 0.50% 
over the Base Rate or (ii) 1.50% over the LIBOR Rate; and when the Company’s first lien net leverage ratio is equal 
to or below 3.50x, interest on the Revolving Credit Facility is (y) 0.25% over the Base Rate or (z) 1.25% over the 

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LIBOR Rate. As of December 31, 2021, the applicable margin for the Revolving Credit Facility was 1.25%. In 
addition, there is an annual commitment fee, based on the Company’s first lien net leverage ratio, on the average 
unused revolving credit borrowings available under the Revolving Credit Facility. As of December 31, 2021, the 
commitment fee is 0.25%. Borrowings under the Revolving Credit Facility are payable at the option of the Company 
throughout the term of the Senior Secured Credit Facility with the balance due in September 2025. 

The Senior Secured Credit Facility requires the Company to maintain a specified maximum first lien net 
leverage ratio of 5.50x when revolving loan commitments remain outstanding on the Revolving Credit Facility at the 
end of a fiscal quarter. As of December 31, 2021, the Company had no amounts outstanding under the Revolving 
Credit Facility; however, the Company would have been in compliance with the maximum first lien net leverage 
ratio, achieving a 0.60x ratio. Additionally, within the terms of the Senior Secured Credit Facility, a first lien net 
leverage ratio at or below 4.00x results in the elimination of excess cash flow payments on the Senior Secured 
Credit Facility for the applicable year. 

In addition, the Credit Agreement, among other things, includes customary restrictions (subject to certain 
exceptions) on the Company’s ability to incur certain indebtedness, grant certain liens, make certain investments, 
engage in acquisitions, consolidations and mergers, declare or pay certain dividends or repurchase shares of the 
Company’s common stock. As of December 31, 2021, the Company was in compliance with all covenants under the 
Credit Agreement. 

5.0% Senior Notes 

In November 2020, ATI redeemed all of its outstanding 5.0% Senior Notes due 2024 (“5.0% Senior Notes”), at 

the redemption price equal to 101.25% of the principal amount plus any accrued and unpaid interest, using the 
proceeds from the issuance of the 3.75% Senior Notes and cash on hand, resulting in a loss (the premium between 
the purchase price of the 5.0% Senior Notes and the face value of such notes) of $19 million including the deferred 
financing fees written off.  

4.75% Senior Notes 

ATI may from time to time seek to retire the 4.75% Senior Notes through cash purchases and/or exchanges 

for equity securities, in open market purchases, privately negotiated transactions, contractual redemptions or 
otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, liquidity 
requirements, contractual restrictions and other factors. The amounts involved may be material. Prior to October 1, 
2022, ATI may redeem some or all of the 4.75% Senior Notes by paying a price equal to 100.00% of the principal 
amount being redeemed, plus an “applicable premium”. At any time on or after October 1, 2022, ATI may redeem 
some or all of the 4.75% Senior Notes at specified redemption prices in the governing indenture. 

The 4.75% Senior Notes are unsecured and are guaranteed by each of ATI’s domestic subsidiaries that is a 

borrower under or guarantees the Senior Secured Credit Facility and are unconditionally guaranteed, jointly and 
severally, by any of ATI’s future domestic subsidiaries that are borrowers under or guarantee the Senior Secured 
Credit Facility. None of ATI’s domestic subsidiaries currently guarantee its obligations under the Senior Secured 
Credit Facility, and therefore none of ATI’s domestic subsidiaries currently guarantee the 4.75% Senior Notes. The 
indenture governing the 4.75% Senior Notes contains negative covenants restricting or limiting the Company’s 
ability to, among other things: incur or guarantee additional indebtedness, incur liens, pay dividends on, redeem or 
repurchase the Company’s capital stock, make certain investments, permit payment or dividend restrictions on 
certain of the Company’s subsidiaries, sell assets, engage in certain transactions with affiliates, and consolidate or 
merge or sell all or substantially all of the Company’s assets. As of December 31, 2021, the Company was in 
compliance with all covenants under the indenture governing the 4.75% Senior Notes. 

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5.875% Senior Notes 

In March 2019, ATI completed an offering of $500 million of the 5.875% Senior Notes. The 5.875% Senior 

Notes were offered in a private placement exempt from registration under the Securities Act of 1933, as amended. 
The net proceeds from the offering, together with borrowings under the Senior Secured Credit Facility and cash on 
hand, were used to repay all of the outstanding borrowings under the Prior Term Loan plus accrued and unpaid 
interest and related transaction expenses. As a result of the offering, the Company recorded $6 million as deferred 
financing fees in the Consolidated Balance Sheet in the first quarter of 2019. 

ATI may from time to time seek to retire the 5.875% Senior Notes through cash purchase and/or exchanges 

for equity securities, in open market purchases, privately negotiated transactions, contractual redemptions or 
otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, liquidity 
requirements, contractual restrictions and other factors. The amounts involved may be material. Prior to June 1, 
2022, ATI may redeem up to 40% of the 5.875% Senior Notes by paying a price equal to 105.875% of the principal 
amount being redeemed. Prior to June 1, 2024, ATI may redeem some or all of the 5.875% Senior Notes by paying 
a price equal to 100.00% of the principal amount being redeemed, plus an “applicable premium”. At any time on or 
after June 1, 2024, ATI may redeem some or all of the 5.875% Senior Notes at specified redemption prices in the 
governing indenture.  

The 5.875% Senior Notes are unsecured and are guaranteed by each of ATI’s domestic subsidiaries that is a 

borrower under or guarantees the Senior Secured Credit Facility and are unconditionally guaranteed, jointly and 
severally, by any of ATI’s future domestic subsidiaries that are borrowers under or guarantee the Senior Secured 
Credit Facility. None of ATI’s domestic subsidiaries currently guarantee its obligations under the Senior Secured 
Credit Facility, and therefore none of ATI’s domestic subsidiaries currently guarantee the 5.875% Senior Notes. The 
indenture governing the 5.875% Senior Notes contains negative covenants restricting or limiting the Company’s 
ability to, among other things: incur or guarantee additional indebtedness, incur liens, pay dividends on, redeem or 
repurchase the Company’s capital stock, make certain investments, permit payment or dividend restrictions on 
certain of the Company’s subsidiaries, sell assets, engage in certain transactions with affiliates, and consolidate or 
merge or sell all or substantially all of the Company’s assets. As of December 31, 2021, the Company was in 
compliance with all covenants under the indenture governing the 5.875% Senior Notes. 

3.75% Senior Notes 

In November 2020, ATI completed an offering of $1,000 million of the 3.75% Senior Notes. The 3.75% Senior 
Notes were offered in a private placement exempt from registration under the Securities Act of 1933, as amended. 
The net proceeds from the offering, together with cash on hand, were used to redeem all of the outstanding 5.0% 
Senior Notes plus accrued and unpaid interest and related transaction expenses. As a result of the offering, the 
Company recorded $10 million as deferred financing fees in the Consolidated Balance Sheet as of December 31, 
2020. 

ATI may from time to time seek to retire the 3.75% Senior Notes through cash purchase and/or exchanges for 

equity securities, in open market purchases, privately negotiated transactions, contractual redemptions or 
otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, liquidity 
requirements, contractual restrictions and other factors. The amounts involved may be material. Prior to January 30, 
2024, ATI may redeem up to 40% of the 3.75% Senior Notes by paying a price equal to 103.750% of the principal 
amount being redeemed. Prior to January 30, 2026, ATI may redeem some or all of the 3.75% Senior Notes by 
paying a price equal to 100.00% of the principal amount being redeemed, plus an “applicable premium”. At any time 
on or after January 30, 2026, ATI may redeem some or all of the 3.75% Senior Notes at specified redemption prices 
in the governing indenture.  

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The 3.75% Senior Notes are unsecured and are guaranteed by each of ATI’s domestic subsidiaries that is a 

borrower under or guarantees the Senior Secured Credit Facility and are unconditionally guaranteed, jointly and 
severally, by any of ATI’s future domestic subsidiaries that are borrowers under or guarantee the Senior Secured 
Credit Facility. None of ATI’s domestic subsidiaries currently guarantee its obligations under the Senior Secured 
Credit Facility, and therefore none of ATI’s domestic subsidiaries currently guarantee the 3.75% Senior Notes. The 
indenture governing the 3.75% Senior Notes contains negative covenants restricting or limiting the Company’s 
ability to, among other things: incur or guarantee additional indebtedness, incur liens, pay dividends on, redeem or 
repurchase the Company’s capital stock, make certain investments, permit payment or dividend restrictions on 
certain of the Company’s subsidiaries, sell assets, engage in certain transactions with affiliates, and consolidate or 
merge or sell all or substantially all of the Company’s assets. As of December 31, 2021, the Company was in 
compliance with all covenants under the indenture governing the 3.75% Senior Notes. 

NOTE 9.   DERIVATIVES 

The Company is subject to interest rate risk related to the Senior Secured Credit Facility and enters into 

interest rate swaps that are based on LIBOR to manage a portion of this exposure. The interest rate swaps are 
designated as cash flow hedges that qualify for hedge accounting under the hypothetical derivative method. Fair 
value adjustments are recorded as a component of AOCL in the Consolidated Balance Sheets. Balances in AOCL 
are reclassified to earnings when transactions related to the underlying risk are settled. During the first quarter of 
2019, the Company entered into $250 million of interest rate swaps and designated them as cash flow hedges 
under the hypothetical derivative method. As of December 31, 2021, the Company held interest rate swaps effective 
from (i) September 2019 to September 2022 with notional values totaling $250 million and a weighted average 
LIBOR fixed rate of 3.01%, (ii) from September 2019 to September 2025 with notional values totaling $250 million 
and a weighted average LIBOR fixed rate of 3.04% and (iii) September 2022 to September 2025 with notional 
values totaling $250 million and a weighted average LIBOR fixed rate of 2.82%. See "NOTE 7. Fair Value of 
Financial Instruments” for information regarding the fair value of the Company’s interest rate swaps. 

The following tabular disclosures further describe the Company’s interest rate derivatives qualifying and 

designated for hedge accounting and their impact on the financial condition of the Company (dollars in millions): 

Derivatives designated as hedging 
instruments: 

Interest rate swaps 

Total derivatives designated as hedging 
instruments 

December 31, 2021 

December 31, 2020 

Balance Sheet 
Location 

  Fair Value 

Balance Sheet 
Location 

Fair Value 

Other current

liabilities  $ 

10    

Other non-current

liabilities   

 $ 

21    

31    

Other current

liabilities   $ 

Other non-
current 
liabilities    

   $ 

14  

46  

60  

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The balance of derivative losses recorded in AOCL as of December 31, 2021 and 2020 was $31 million and 

$60 million, respectively. During the year ended December 31, 2021, the Company reclassified $15 million from 
AOCL to earnings, which was recorded as Interest expense, net on the Consolidated Statements of Comprehensive 
Income. The Company had $13 million of derivative losses recorded in AOCL expected to be reclassified to 
earnings within the next twelve months as of December 31, 2021. See "NOTE 17. Accumulated Other 
Comprehensive Loss” for information regarding activity recorded as a component of AOCL during the year ended 
December 31, 2021. 

NOTE 10.   PRODUCT WARRANTY LIABILITIES 

As of December 31, 2021, the current and non-current product warranty liabilities were $33 million and $20 
million, respectively. As of December 31, 2020, the current and non-current product warranty liabilities were $36 
million and $30 million, respectively. Product warranty liability activities consist of the following (dollars in millions): 

Beginning balance 
Payments 
Increase in liability (warranty issued during period) 
Net adjustments to liability 
Ending balance 

Year ended 
December 31, 
2021 

Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

  $ 

  $ 

66  
(30 ) 
16  
1  
53  

  $ 

  $ 

52  
(32 ) 
15  
31  
66  

  $ 

  $ 

66  
(26 ) 
21  
(9 ) 
52  

The adjustments to the total liability in 2021, 2020 and 2019 were the result of general changes in estimates 

for various products and specific field action programs as additional claims data and field information became 
available. 

In 2020, the Company recorded a $23 million product warranty adjustment to address a transmission 
performance issue associated with shift quality in a defined population of products. As a result of this performance 
issue, the Company created a field action program in 2019 dedicated to the defined population of products and 
reviewed, assessed and made adjustments to the liability on a quarterly basis. The product warranty adjustment in 
2020 was the result of additional claims data and field information becoming available. 

NOTE 11.   DEFERRED REVENUE 

As of December 31, 2021, the current and non-current deferred revenue were $37 million and $99 million, 
respectively. As of December 31, 2020, the current and non-current deferred revenue were $34 million and $109 
million, respectively. Deferred revenue activity consists of the following (dollars in millions): 

Beginning balance 
Increases 
Revenue earned 
Ending balance 

Year ended 
December 31, 
2021 

Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

  $ 

  $ 

143  
29  
(36 ) 
136  

  $ 

  $ 

139  
40  
(36 ) 
143  

  $ 

  $ 

122  
55  
(38 ) 
139  

Deferred revenue recorded in current and non-current liabilities related to ETC as of December 31, 2021 were 
$30 million and $84 million, respectively. Deferred revenue recorded in current and non-current liabilities related to 
ETC as of December 31, 2020 were $28 million and $88 million, respectively. 

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NOTE 12.   LEASES 

Lessee Accounting 

Contracts are assessed by the Company to determine if the contract conveys the right to control an identified 

asset in exchange for consideration during a period of time. The Company classifies all identified leases as either 
operating or finance leases. As of December 31, 2021, the Company was not a party to any finance leases. 
Contracts that contain leases are assessed to determine if the consideration in the contract is related to a lease 
component, non-lease component or other components not related to the lease. Lease components are recorded 
as right-of-use (“ROU”) assets and lease liabilities while any non-lease component is expensed as incurred. The 
consideration in the contract related to other components not related to the lease is allocated among the lease 
component and the non-lease component, as applicable, based on the stand-alone selling price of the lease and 
non-lease components. 

Certain lease agreements may contain an option to extend or terminate the lease. The Company considers 

the economic impact of extension and termination options for each lease agreement. If the Company concludes it is 
reasonably certain an option will be exercised, that option is included in the lease term and impacts the amount 
recorded as an ROU asset and lease liability upon inception of the contract. 

The Company's lease liability is determined by discounting the future cash flows over the lease period. The 

Company determines its discount rates by utilizing current secured financing rates based on the length of the lease 
period plus the Company's margin over LIBOR on the Term Loan. The Company believes this rate effectively 
represents a borrowing rate the Company could obtain on a debt instrument possessing similar terms as the lease. 
Any lease liability is classified between current and non-current liabilities based on the terms of the underlying 
leases. The weighted average discount rate on operating leases as of December 31, 2021 and 2020 was 4.25% 
and 4.37%, respectively. 

As of December 31, 2021, the Company recorded current and non-current operating lease liabilities of $4 
million and $13 million, respectively. As of December 31, 2020, the Company recorded current and non-current 
operating lease liabilities of $4 million and $17 million, respectively. The following table reconciles future 
undiscounted cash flows for operating leases as of December 31, 2021 to total operating lease liabilities: 

2022 
2023 
2024 
2025 
2026 
Thereafter 

Total lease payments 
Less: Interest 

Present value of lease liabilities 

December 31, 
2021 

5  
3  
2  
2  
2  
6  
20  
3  
17  

  $ 

  $ 

  $ 

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ROU assets are calculated as the related lease liability adjusted for lease incentives, prepayments and the 

effect of escalating lease payments on period expense. The below table depicts the ROU assets held by the 
Company based on the underlying asset: 

Buildings 
Land 
Vehicles 
Total right-of-use assets 

December 31, 
2021 

16  
1  
1  
18  

  $ 

  $ 

The weighted average remaining lease term as of December 31, 2021 and December 31, 2020 was 6.8 years 

and 7.6 years, respectively. 

Operating lease expense was $6 million for each of the years ended December 31, 2021 and 2020, and was 

recorded within Selling, general and administrative expense and Engineering - research and development on the 
Company's Consolidated Statements of Comprehensive Income. There was no material short-term operating lease 
expense for any of the years ended December 31, 2021 and 2020. 

The calculation of the Company's ROU assets and lease liabilities did not include cash consideration as of 
either December 31, 2021 or 2020. During each of the years ended December 31, 2021 and 2020, the Company 
recorded $2 million of new ROU assets obtained in exchange for lease obligations. 

NOTE 13.   OTHER INCOME (EXPENSE), NET 

Other income (expense), net consists of the following (dollars in millions): 

Post-retirement benefit plan amendment credits 
Unrealized gain on marketable securities 
Technology-related investments gain 
Expenses related to long-term debt refinancing 
Other 

Total 

NOTE 14.   OTHER CURRENT LIABILITIES 

Years ended December 31, 
2020 

2021 

2019 

10     $ 
4      
4      
—      
1      
19     $ 

13     $ 
—      
—      
(13 )    
(4 )    
(4 )   $ 

11  
—  
—  
(1 ) 
—  
10  

  $ 

  $ 

Other current liabilities consist of the following (dollars in millions): 

Payroll and related costs 
Sales allowances 
Accrued interest payable 
Vendor buyback obligation 
Taxes payable 
Derivative liabilities 
Lease liability 
Non-trade payables 
Construction liability 
Other accruals 

Total 

As of December 31, 
2021 

As of December 31, 
2020 

  $ 

  $ 

80     $ 
39      
24      
16      
14      
10      
4      
2      
2      
13      
204     $ 

47  
20  
12  
16  
11  
14  
4  
2  
1  
13  
140  

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NOTE 15.  EMPLOYEE BENEFIT PLANS 

The Company’s hourly defined benefit pension plan generally provides benefits of negotiated, stated amounts 
for each year of service as well as significant supplemental benefits for employees who were hired on or before May 
18, 2008 and retire with 30 years of service before normal retirement age. Any difference between actual and 
expected returns on assets during a year and actuarial gains and losses on liabilities together with any prior service 
costs are charged (or credited) to income over the average remaining service lives of employees. The benefit cost 
components shown in the Consolidated Statements of Comprehensive Income are based upon certain data specific 
to the Company, actuarial assumptions that were used for accounting disclosures, and certain allocation 
methodologies such as population demographics. 

The Company’s salaried defined benefit plan covering salaried employees with a service date prior to January 

1, 2001 is generally based on years of service and compensation history. Any difference between actual and 
expected returns on assets during a year and actuarial gains and losses on liabilities together with any prior service 
costs are charged (or credited) to income over the average remaining service lives of employees. The benefit cost 
components shown in the Consolidated Statements of Comprehensive Income are based upon certain data specific 
to the Company, actuarial assumptions that were used for accounting disclosures, and certain allocation 
methodologies such as population demographics. 

The Company sponsors defined contribution retirement savings plans for eligible employees, based on 
employee location and status. The Company’s salaried defined contribution retirement savings plans provide for a 
Company match of employee contributions up to certain limits based upon eligible base salary. 

The charge to expense for the Company’s defined contribution retirement savings plans was $14 million, $12 

million and $11 million for the years ended December 31, 2021, 2020 and 2019, respectively.  

The Company is also responsible for OPEB costs (medical, dental, vision, and life insurance) for hourly 
employees hired prior to May 19, 2008, excluding those employees eligible to retire at the time of the sale of the 
Company. Post-retirement benefit costs consist of service cost and interest cost on accrued obligations. Actuarial 
gains and losses on liabilities and any prior service costs are charged (or credited) to income over the average 
remaining service lives of employees. The benefit cost components shown in the Consolidated Statements of 
Comprehensive Income are based upon certain data specific to the Company, actuarial assumptions that were 
used for OPEB accounting disclosures, and certain allocation methodologies such as population demographics. 
The plan is unfunded and any future payments will be funded by the Company’s operating cash flows. As of 
December 31, 2021 and 2020, the Company had an estimated OPEB liability for hourly employees hired prior to 
May 19, 2008, excluding those employees eligible to retire at the time of the sale of the Company, of $102 million 
and $107 million, respectively. 

The Company provides contributions to certain international benefit plans; however, these contributions are 

not material for the periods presented. 

For all pension and OPEB plans in which employees participate, costs are determined within the FASB’s 

authoritative accounting guidance set forth on employers’ defined benefit pensions including accounting for 
settlements and curtailments of defined benefit pension plans, termination of benefits and accounting for post-
retirement benefits other than pensions. In accordance with the authoritative accounting guidance, the Company 
recognizes the funded status of its defined benefit pension plans and OPEB plan in its Consolidated Balance 
Sheets with a corresponding adjustment to AOCL, net of tax. 

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Information about the net periodic benefit cost (credit) and other changes recognized in AOCL for the pension 

and post-retirement benefit plans is as follows (dollars in millions): 

Year ended 
December 31, 
2021 

Pension Plans 
Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

Year ended 
December 31, 
2021 

Post-retirement Benefits 
Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

  $ 

Net Periodic Benefit Cost 
(Credit): 
Service cost 
Interest cost 
Expected return on assets 
Settlement loss 
Prior service credit 
Recognized actuarial loss 
Net Periodic Benefit Cost 
(Credit) 
Other changes recognized in 
other 
   comprehensive income: 
Net (gain) loss 
Amortizations 
Total recognized – other 
   comprehensive (income) loss    $ 

  $ 

  $ 

9     $ 
5      
(8 )    
—      
—      
1      

10     $ 
6      
(9 )    
2      
—      
—      

10     $ 
7      
(9 )    
—      
—      
—      

1     $ 
3      
—      
—      
(10 )    
—      

1     $ 
3      
—      
—      
(14 )    
—      

7     $ 

9     $ 

8     $ 

(6 )   $ 

(10 )   $ 

(6 )   $ 
(1 )    

12     $ 
(2 )    

(2 )   $ 
—      

(5 )   $ 
10      

12     $ 
13      

(7 )   $ 

10     $ 

(2 )   $ 

5     $ 

25     $ 

1  
4  
—  
—  
(13 ) 
—  

(8 ) 

(1 ) 
13  

12  

The components of net periodic benefit costs other than the service cost component are included in Other 

income (expense), net in the Consolidated Statements of Comprehensive Income. 

The voluntary and involuntary separation programs in the second quarter of 2020 resulted in a one-time, non-

cash settlement charge of $2 million recorded in Other income (expense), net in the Consolidated Statements of 
Comprehensive Income. 

The table below provides the weighted-average actuarial assumptions used to determine the net periodic 

benefit cost (credit). 

Year ended 
December 31, 
2021 

Pension Plans 
Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

Year ended 
December 31,
2021 

Post-retirement Benefits 
Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

Discount rate 
Rate of 
compensation 
   increase (salaried)    
Expected return on 
assets 

2.30 %    

3.20 %    

4.20 %    

2.40 % 

3.20 % 

4.20 % 

3.00 %    

3.00 %    

3.00 %   

3.70 %    

4.00 %    

4.50 %   

N/A

N/A

N/A 

N/A 

N/A 

N/A 

The table below provides the weighted-average actuarial assumptions used to determine the benefit 

obligations of the Company’s plans. 

Discount rate 
Rate of compensation increase (salaried) 

Pension Plans 

  Post-retirement Benefits 

2021 

2.70 % 
3.00 % 

As of December 31, 
2021 
2020 

2.30 %    
3.00 %   

2.80 % 
N/A

2020 

2.40 % 
N/A 

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The Company’s pension and OPEB costs are calculated using various actuarial assumptions and 

methodologies as prescribed by authoritative accounting guidance. These assumptions include discount rates, 
expected return on plan assets, health care cost trend rates, inflation, rate of compensation increases, mortality 
rates and other factors. The Company reviews all actuarial assumptions on an annual basis and in the case of 
remeasurement. 

The discount rate is used to determine the present value of the Company’s benefit obligations. The 

Company’s discount rate is determined by matching the plans’ projected cash flows to a yield curve based on long-
term, fixed income debt instruments available as of the measurement date of December 31, 2021. 

The overall expected rate of return on plan assets is based upon historical and expected future returns 

consistent with the expected benefit duration of the plan for each asset group adjusted for investment and 
administrative fees. 

Health care cost trends are used to project future post-retirement benefits payable from the Company’s plans. 

For the Company’s December 31, 2021 obligations, future post-retirement health care costs were forecasted 
assuming an initial annual increase of up to 6.70%, decreasing to an annual increase of up to 4.00% by the year 
2044. 

The following table provides a reconciliation of the changes in the net benefit obligations and fair value of plan 

assets for the years ended December 31, 2021, 2020 and 2019 (dollars in millions): 

Year ended 
December 31, 
2021 

Pension Plans 
Year ended 
December 31,
2020 

Year ended 
December 31, 
2019 

Year ended 
December 31, 
2021 

Post-retirement Benefits 
Year ended 
December 31, 
2020 

Year ended 
December 31, 
2019 

 $ 

Benefit Obligations: 
Net benefit obligation at beginning 
of 
   year 
Service cost 
Interest cost 
Settlements 
Benefits paid 
Actuarial (gain) loss 
Net benefit obligation at end of year  $ 
Fair Value of Plan Assets: 
Fair value of plan assets at 
beginning 
   of year 
Actual return on plan assets 
Employer contributions 
Settlements 
Benefits paid 
Fair value of plan assets at end of 
   year 
Net Funded Status 

 $ 
 $ 

 $ 

235   $ 
9    
5    
—    
(14 )   
(15 )   
220   $ 

228   $ 
(1 )   
—    
—    
(14 )   

213   $ 
(7 )  $ 

204   $ 
10    
6    
(12 )   
(6 )   
33    
235   $ 

217   $ 
29    
—    
(12 )   
(6 )   

228   $ 
(7 )  $ 

177    $ 
10     
7     
—     
(9 )    
19     
204    $ 

196    $ 
30     
—     
—     
(9 )    

217    $ 
13    $ 

107   $ 
1    
3    
—    
(4 )   
(5 )   
102   $ 

—   $ 
—    
3    
—    
(3 )   

94   $ 
1    
3    
—    
(3 )   
12    
107   $ 

—   $ 
—    
3    
—    
(3 )   

—   $ 
(102 )  $ 

—   $ 
(107 )  $ 

93  
1  
4  
—  
(2 ) 
(2 ) 
94  

—  
—  
2  
—  
(2 ) 

—  
(94 ) 

The Company’s pension plan assets mostly consist of diversified equity securities and diversified debt 
securities. The fair values of plan assets for the Company’s pension plans as of December 31, 2021 and 2020 are 
as follows (dollars in millions): 

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Quoted Prices in Active 
Markets for Identical 
Assets (Level 1) 
2020 
2021 

Fair Value Measurements Using 
Significant Other 
Observable Inputs 
(Level 2) 

2021 

2020 

2021 

2020 

TOTAL 

Diversified debt securities 
Diversified equity securities 
Cash equivalents 

Total 

 $ 

 $ 

14    $ 
24     
6     
44    $ 

14    $ 
28     
4     
46    $ 

160    $ 
9     
—     
169    $ 

172    $ 
10     
—     
182    $ 

174    $ 
33     
6     
213    $ 

186  
38  
4  
228  

The Company’s investment strategy with respect to pension plan assets is to invest the assets in accordance 

with laws and regulations. The long-term primary objectives for the Company’s pension assets are to provide results 
that meet or exceed the plans’ actuarially assumed long-term rate of return without subjecting the funds to undue 
risk. To achieve these objectives the Company has established the following targets: 

Asset Category 
Cash equivalents 
Diversified equity securities 
Diversified debt securities 

Total 

Hourly 

Target 

2%    

15 
83 

100%    

Salary 

2% 

15 
83 
100% 

Through 2021, the Company’s investment committee has continued to evaluate the investments and take 

steps toward the established targets. 

The following table discloses the amounts recognized in the balance sheet and in AOCL at December 31, 

2021 and 2020, on a pre-tax basis (dollars in millions): 

Amounts Recognized in Balance Sheet: 
Noncurrent assets 
Current liabilities 
Noncurrent liabilities 
Total (liability) asset 
Accumulated Other Comprehensive Loss: 
Prior service credit 
Actuarial loss 
Total 

Pension Plans 

Post-retirement Benefits 

As of December 31, 

2021 

2020 

2021 

2020 

  $ 

  $ 

  $ 

  $ 

1    $ 
—     
(8 )    
(7 )   $ 

2    $ 
(8 )    
(6 )   $ 

  $ 

—  
—  
(7 )     
(7 )    $ 

  $ 

2  
(16 )     
(14 )    $ 

—    $ 
(4 )    
(98 )    
(102 )   $ 

34    $ 
(3 )    
31    $ 

— 
(3) 
(104) 
(107) 

44 
(8) 
36 

The accumulated benefit obligation for the Company’s pension plans as of December 31, 2021 and 2020 was 

$216 million and $230 million, respectively. 

As of December 31, 2021 and 2020, the projected benefit obligation, the accumulated benefit obligation, and 

the fair value of plan assets for pension plans with a projected benefit obligation in excess of plan assets and for 
pension plans with an accumulated benefit obligation in excess of plan assets were as follows (dollars in millions): 

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Plans with projected benefit obligation in excess of plan assets: 
Projected benefit obligation 
Fair value of plan assets 
Plans with accumulated benefit obligation in excess of plan assets: 
Accumulated benefit obligation 
Fair value of plan assets 

Hourly Plan 

Salary Plan 

As of December 31, 

2021 

2020 

2021 

2020 

  N/A 1    N/A 1 
  N/A 1    N/A 1 

  $  110    $  119  
 $  101    $  112  

  N/A 1    N/A 1 
  N/A 1    N/A 1 

 $  105    $  114  
  $  101    $  112  

(1)  As of December 31, 2021 and 2020, the hourly defined pension plan had plan assets greater than the projected benefit obligation and the 

accumulated benefit obligation. 

Information about expected cash flows for the Company’s pension and post-retirement benefit plans is as 

follows (dollars in millions): 

Employer Contributions: 
2022 expected contributions 
Expected Benefit Payments: 
2022 
2023 
2024 
2025 
2026 
2027-2031 

Pension 
Plans 

Post-retirement 
Benefits 

  $ 

— 

  $ 

11 
11 
12 
13 
13 
68 

4 

4 
4 
4 
4 
4 
24 

Expected benefit payments for pension and post-retirement benefits will be paid from plan trusts or corporate 

assets. The Company’s funding policy is to contribute amounts annually that are at least equal to the amounts 
required by applicable laws and regulations or to directly fund payments to plan participants. Additional 
discretionary contributions will be made when deemed appropriate to meet the Company’s long-term obligation to 
the plans. 

The Company maintains a non-qualified deferred compensation plan (“Deferred Compensation Plan”) for a 
select group of management. Under the terms of the plan, the Company has utilized a rabbi trust to accumulate 
assets to fund its promise to pay benefits under the Deferred Compensation Plan. The rabbi trust is an irrevocable 
trust, which restricts any use of funds (operational or otherwise) by the Company other than to pay benefits under 
the Deferred Compensation Plan, and prevents immediate taxation of contributed amounts. Funds are accumulated 
through both employee deferrals and a Company match. Funds can be invested by the employee into a diversified 
group of investment options, which have been selected by the Company’s investment committee, that are all 
categorized as Level 1 in the fair value hierarchy. The Company match resulted in no charge to the Consolidated 
Statements of Comprehensive Income for any of the years ended December 31, 2021, 2020 and 2019, and the fair 
value of the rabbi trust plan assets and deferred compensation obligation was $19 million and $17 million as of 
December 31, 2021 and 2020, respectively. 

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NOTE 16.   INCOME TAXES 

Income before income taxes included the following (dollars in millions): 

U.S. income 
Foreign income 

Total 

2021 

Years ended December 31, 
2020 

2019 

  $ 

  $ 

513     $ 
59      
572     $ 

364     $ 
29      
393     $ 

712  
56  
768  

The provision for income tax expense was estimated as follows (dollars in millions): 

Estimated current income taxes: 

U.S. federal 
Foreign 
U.S. state and local 
Total Current 

Deferred income tax expense, net: 

U.S. federal 
Foreign 
U.S. state and local 
Total Deferred 
Total income tax expense 

2021 

Years ended December 31, 
2020 

2019 

  $ 

  $ 

48     $ 
10      
8      
66      

56      
—      
8      
64      
130     $ 

18     $ 
6      
1      
25      

61      
1      
7      
69      
94     $ 

A reconciliation of the provision for income tax expense compared with the amounts at the U.S. federal 

statutory rate is as follows (dollars in millions): 

Tax at U.S. statutory income tax rate 
State tax expense 
Tax credits 
Effect of tax rate changes 
Foreign rate differential 
Valuation allowance 
Non-deductible expenses 
Other adjustments 

Total income tax expense 

2021 

Years ended December 31, 
2020 

2019 

  $ 

  $ 

120     $ 
12      
(4 )    
2      
(2 )    
(1 )    
—      
3      
130     $ 

82     $ 
10      
(5 )    
5      
(2 )    
2      
3      
(1 )    
94     $ 

75  
13  
11  
99  

58  
—  
7  
65  
164  

161  
14  
(4 ) 
(2 ) 
(1 ) 
1  
(7 ) 
2  
164  

The effective tax rate for the years ended December 31, 2021 and 2020 was 23% and 24%, respectively. 

Deferred income tax assets and liabilities as of December 31, 2021 and 2020 reflect the effect of temporary 

differences between amounts of assets, liabilities and equity for financial reporting purposes and the bases of such 
assets, liabilities and equity as measured by tax laws, as well as tax loss and tax credit carry forwards. Net deferred 
tax assets and liabilities are classified as non-current in the Consolidated Balance Sheets. As described above, the 
deferred tax assets and liabilities are measured based on the enacted tax rates that will apply in the years in which 
the temporary differences are expected to be recovered or paid. 

The Company has not recognized any deferred tax liabilities associated with earnings in foreign subsidiaries, 

except for its subsidiary located in China, as they are intended to be permanently reinvested and used to support 
foreign operations or have no associated tax requirements. As of December 31, 2021, the Company has recorded a 
deferred tax liability of $3 million for the tax liability associated with the remittance of previously taxed income and 
unremitted earnings for its subsidiary located in China.  

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Temporary differences and carryforwards that gave rise to deferred tax assets and liabilities included the 

following (dollars in millions): 

As of December 31, 
 2021 

As of December 31, 
 2020 

Deferred tax assets: 

Other accrued liabilities 
Deferred revenue 
Warranty accrual 
Stock-based compensation 
Unrealized loss on Interest rate hedges 
Inventories 
Sales allowances and rebates 
Tax credits 
Operating loss carryforwards 
Technology-related investments 
Intangibles 
Other 

Total deferred tax assets 
Valuation allowances 
Deferred tax liabilities: 

Goodwill 
Trade name 
Property, plant and equipment 
Intangibles 
Other 

Total deferred tax liabilities 
Net deferred tax liability 

  $ 

  $ 

35  
31  
11  
10  
7  
7  
7  
5  
4  
3  
—  
13  
133  
(11 ) 

(405 ) 
(173 ) 
(46 ) 
(7 ) 
(3 ) 
(634 ) 
(512 ) 

  $ 

  $ 

26  
33  
14  
9  
14  
7  
3  
4  
6  
4  
9  
13  
142  
(12 ) 

(373 ) 
(153 ) 
(40 ) 
—  
(2 ) 
(568 ) 
(438 ) 

The estimated net operating loss carryforwards as of December 31, 2021 relate solely to U.S. state net 
operating loss carryforwards. Substantially all state operating loss carryforwards will not expire until 2028-2031. 

Management has determined, based on an evaluation of available objective and subjective evidence, that it is 

more likely than not that certain foreign deferred tax assets and an anticipated capital loss carryforward will not be 
realized; therefore, these deferred tax assets are offset with a valuation allowance of $11 million as of December 
31, 2021 and $12 million as of December 31, 2020. 

In accordance with the FASB’s authoritative accounting guidance on accounting for income taxes, the 

Company records uncertain tax positions on the basis of a two-step process whereby (1) it is determined whether it 
is more likely than not that the tax position will be sustained based on the technical merits of the position and (2) for 
those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest 
amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax 
authority. Based upon this process, the Company has recognized a $3 million liability for uncertain tax benefits as of 
each of December 31, 2021 and 2020. Management does not anticipate any material changes in the balance in 
2022.  

For the years ended December 31, 2021, 2020 and 2019, the Company recognized no interest and penalties 

in the Consolidated Statements of Comprehensive Income because either no uncertain tax positions were identified 
or the penalties and interest anticipated were not material in all the periods presented. The Company follows a 
policy of recording any interest or penalties in Income tax expense. 

All of the Company's tax returns, once filed, will remain subject to examination by the various taxing authorities 

for the duration of the applicable statute of limitations (generally three years from the earlier of the date of filing or 
the due date of the return). 

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NOTE 17.   ACCUMULATED OTHER COMPREHENSIVE LOSS 

The changes in components of AOCL consisted of the following (dollars in millions): 

Tax (Expense) 
Benefit 

Reclassification 
of stranded tax 
effects 

After Tax 

  Before Tax 
  $ 

Balance at December 31, 2018 
Foreign currency translation 
Pension and OPEB liability adjustment 
Available-for-sale securities 

Net current period other comprehensive (loss) 
income 
Balance at December 31, 2019 
Foreign currency translation 
Pension and OPEB liability adjustment 
Interest rate swaps 

Net current period other comprehensive (loss) 
income 
Balance at December 31, 2020 
Foreign currency translation 
Pension and OPEB liability adjustment 
Interest rate swaps 

  $ 
  $ 

  $ 
  $ 

Net current period other comprehensive income 
(loss) 
Balance at December 31, 2021 

  $ 
  $ 

  $ 

23  
(3 )     
(11 )     
(24 )     

(38 )    $ 
(15 )    $ 
10  
(36 )     
(26 )     

(52 )    $ 
(67 )    $ 
(8 )     
3  
29  

24  
  $ 
(43 )    $ 

(53 )  $ 
—  
2  
6  

8   $ 
(45 )  $ 
—  
9  
6  

15   $ 
(30 )  $ 
—  
(1 ) 
(7 ) 

(8 )  $ 
(38 )  $ 

  $ 

—  
—  
9  
(1 )     

  $ 
  $ 

  $ 
  $ 

8  
8  
—  
—  
—  

—  
8  
—  
—  
—  

—  
8  

  $ 
  $ 

(30 ) 
(3 ) 
—  
(19 ) 

(22 ) 
(52 ) 
10  
(27 ) 
(20 ) 

(37 ) 
(89 ) 
(8 ) 
2  
22  

16  
(73 ) 

The following table shows the location in the Consolidated Statements of Comprehensive Income affected by 

reclassifications from AOCL (dollars in millions): 

AOCL Components 

Interest rate swaps 
Prior service credit 

Total reclassifications, before tax 
Income tax expense 
Total reclassifications 

AOCL Components 

Interest rate swaps 
Prior service credit 

Total reclassifications, before tax 
Income tax expense 
Total reclassifications 

For the year ended December 31, 2019 

Amount 
reclassified from 
AOCL 

Affected line item 
in the consolidated 
statements of 
comprehensive 
income 
1     Interest expense, net 

13     Other income (expense), net 
14     Income before income taxes 
(3 )   Income tax expense 
11      

For the year ended December 31, 2020 

Amount 
reclassified from 
AOCL 

Affected line item 
in the consolidated 
statements of 
comprehensive 
income 
11     Interest expense, net 
14     Other income (expense), net 
25     Income before income taxes 
(6 )   Income tax expense 
19      

  $ 

  $ 

  $ 

  $ 

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AOCL Components 

Interest rate swaps 
Prior service credit 
Recognized actuarial loss 
Total reclassifications, before tax 
Income tax expense 
Total reclassifications 

For the year ended December 31, 2021 

Amount 
reclassified from 
AOCL 

  $ 

  $ 

Affected line item 
in the consolidated 
statements of 
comprehensive 
income 
15     Interest expense, net 
10     Other income (expense), net 
(1 )   Other income (expense), net 
24     Income before income taxes 
(6 )   Income tax expense 
18      

Prior service cost and actuarial loss are included in the computation of the Company’s net periodic benefit 

cost. Please see "NOTE 15. Employee Benefit Plans” for additional details. 

NOTE 18.   COMMITMENTS AND CONTINGENCIES 

Environmental Matters 

The Company has an agreement with the Environmental Protection Agency ("EPA") to perform remedial 
activities at the Company’s Indianapolis, Indiana manufacturing facilities related to historical soil and groundwater 
contamination. In the fourth quarter of 2019, the EPA accepted a proposal to reduce the Company’s ongoing 
responsibilities for operating, monitoring and maintaining the ongoing activities resulting in the Company reducing 
its associated undiscounted liability to $3 million to complete the future operating, monitoring and maintenance 
activities over the next 30 years. As of December 31, 2021, the Company had a liability recorded in the amount of 
$3 million.  

Claims, Disputes, and Litigation 

The Company is party to various legal actions and administrative proceedings and subject to various claims 

arising in the ordinary course of business. These proceedings primarily involve commercial claims, product liability 
claims, personal injury claims and workers’ compensation claims. The Company believes that the ultimate liability, if 
any, in excess of amounts already provided for in the consolidated financial statements or covered by insurance on 
the disposition of these matters will not have a material adverse effect on the financial position, results of operations 
or cash flows of the Company. 

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NOTE 19.   CONCENTRATION OF RISK 

As of December 31, 2021 and 2020, the Company employed approximately 3,400 and 3,300 employees, 

respectively, with 90% and 89%, respectively, of those employees in the U.S. Approximately 46% and 47% of the 
Company’s U.S. employees were represented by unions and subject to a collective bargaining agreement as of 
December 31, 2021 and 2020, respectively. The Company is currently operating under a collective bargaining 
agreement with UAW Local 933 that expires in November 2023. 

Three customers accounted for 10% or more of net sales within the last three years presented. 

% of net sales 
Daimler AG 
PACCAR Inc. 
Traton SE1 

2021 

Years ended December 31, 
2020 

2019 

20 %    
10 %    
10 %    

20 %    
11 %    
11 %    

20 % 
12 % 
11 % 

(1)  Traton SE acquired Navistar International Corporation in July 2021. Percentages for 2021 include net sales to Traton SE and Navistar 

International Corporation. Percentages for 2020 and 2019 include net sales to Navistar International Corporation only. 

No other customers accounted for 10% or more of net sales of the Company during the years ended 

December 31, 2021, 2020 or 2019. 

Two customers accounted for 10% or more of outstanding accounts receivable within the last two years 

presented. 

% of accounts receivable 
Daimler AG 
Traton SE1 

As of December 31, 
2021 

As of December 31, 
2020 

17 %     
11 %     

21 % 
14 % 

(1)  Traton SE acquired Navistar International Corporation in July 2021. Percentages for 2021 include net sales to Traton SE and Navistar 

International Corporation. Percentages for 2020 and 2019 include net sales to Navistar International Corporation only. 

No other customers accounted for 10% or more of the outstanding accounts receivable as of December 31, 

2021 or December 31, 2020. 

No supplier accounted for 10% or more of materials purchased during the years ended December 31, 2021, 

2020 or 2019. 

NOTE 20.   COMMON STOCK 

The Company's Board of Directors has authorized it to repurchase up to $3,000 million, in the aggregate, of its 

common stock pursuant to a stock repurchase program (the “Repurchase Program”). During 2021, the Company 
repurchased approximately $513 million of its common stock under the Repurchase Program, leaving $314 million 
of authorized repurchases remaining under the Repurchase Program as of December 31, 2021. The Repurchase 
Program has no termination date, and the timing and amount of stock purchases are subject to market conditions 
and corporate needs. The Repurchase Program may be modified, suspended or discontinued at any time at the 
Company’s discretion. 

NOTE 21.   EARNINGS PER SHARE 

The Company presents both basic and diluted earnings per share (“EPS”) amounts. Basic EPS is calculated 

by dividing net income by the weighted average number of common shares outstanding during the reporting period. 
Diluted EPS is calculated by dividing net income by the weighted average number of common shares and common 
equivalent shares outstanding during the reporting period that are calculated using the treasury stock method for 
stock-based awards. The treasury stock method assumes that the Company uses the proceeds from the exercise of 
awards to repurchase common stock at the average market price during the period. The assumed proceeds under 

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the treasury stock method include the purchase price that the grantee will pay in the future and compensation cost 
for future service that the Company has not yet recognized. During each of the years ended December 31, 2021 
and 2020, 1 million outstanding stock options were excluded from the diluted EPS calculation because they were 
anti-dilutive, and during the year ended December 31, 2019, there were no outstanding stock options excluded from 
the diluted EPS calculation because they were anti-dilutive. Basic and diluted EPS for the full-year is calculated 
using the weighted average shares of common stock outstanding during the year while quarterly basic and diluted 
EPS is calculated using the weighted average shares of common stock outstanding during the quarter; therefore, 
the sum of the four quarters’ EPS may not equal full-year EPS. 

The following table reconciles the numerators and denominators used to calculate basic EPS and diluted EPS 

(in millions, except per share data): 

Net income 
Weighted average shares of common stock outstanding 
Dilutive effect stock-based awards 

Diluted weighted average shares of common stock 
outstanding 

  $ 

Basic earnings per share attributable to common stockholders 

  $ 

2021 

Years ended December 31, 
2020 

2019 

442     $ 
107      
—      

107      
4.13     $ 

299     $ 
114      
—      

114      
2.62     $ 

604  
122  
1  

123  
4.95  

Diluted earnings per share attributable to common 
   stockholders 

  $ 

4.13     $ 

2.62     $ 

4.91  

NOTE 22.   GEOGRAPHIC INFORMATION 

The Company had the following net sales by country, based on the location of the customer (dollars in 

millions): 

United States 
China 
Japan 
Canada 
Mexico 
Germany 
South Korea 
Sweden 
France 
United Kingdom 
Netherlands 
Other 

Total 

Years ended December 31, 
2020 

2021 

2019 

  $ 

  $ 

1,706    $ 
122     
109     
62     
50     
34     
28     
27     
27     
26     
24     
187     
2,402    $ 

1,521    $ 
87     
66     
70     
61     
36     
22     
19     
21     
25     
21     
132     
2,081    $ 

1,915  
136  
79  
104  
71  
59  
24  
23  
37  
35  
26  
189  
2,698  

The Company had the following net long-lived assets by country (dollars in millions): 

United States 
India 
Hungary 
Other 

Total 

2021 

Years ended December 31, 
2020 

2019 

  $ 

  $ 

680     $ 
11      
11      
4      
706     $ 

611     $ 
12      
11      
4      
638     $ 

583  
17  
11  
5  
616  

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Allison Transmission Holdings, Inc. 
Schedule I—Parent Company only Balance Sheets 
(dollars in millions) 

December 31, 
2021 

December 31, 
2020 

ASSETS 
Current Assets: 

Cash 

Total Current Assets 
Investments in and advances to subsidiaries 
TOTAL ASSETS 
LIABILITIES AND STOCKHOLDERS’ EQUITY 
Current Liabilities: 

Accounts payable 
Total Current Liabilities 

Capital stock 
Paid in capital 
Treasury stock 
Accumulated deficit 
Accumulated other comprehensive loss, net of tax 
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY 

  $ 

  $ 

  $ 

  $ 

— 
— 
634 
634 

  $ 

  $ 

  $ 

— 
— 
1 
1,832 
— 
(1,126)     
(73)     
634 

  $ 

— 
— 
756 
756 

— 
— 
1 
1,818 
— 
(974) 
(89) 
756 

The accompanying note is an integral part of the Parent Company only financial statements. 

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Allison Transmission Holdings, Inc. 
Schedule I—Parent Company only Statements of Comprehensive Income 
(dollars in millions) 

Net sales 
General and administrative fees 

Total operating income 

Other income: 

Equity earnings of consolidated subsidiary 

Income before income taxes 
Income tax expense 
Net income 
Comprehensive income 

2021 

Years ended December 31, 
2020 

2019 

  $ 

  $ 
  $ 

—     $ 
—      
—      

442      
442      
—      
442     $ 
458     $ 

—     $ 
—      
—      

299      
299      
—      
299     $ 
262     $ 

—  
—  
—  

604  
604  
—  
604  
582  

The accompanying note is an integral part of the Parent Company only financial statements. 

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Allison Transmission Holdings, Inc. 
Schedule I—Parent Company only Statements of Cash Flows 
(dollars in millions) 

CASH FLOWS FROM OPERATING ACTIVITIES: 
Net income 
Deduct items included in net income not providing cash: 

Equity in earnings in consolidated subsidiary 
Net cash provided by operating activities 

CASH FLOWS FROM INVESTING ACTIVITIES: 

Investments in subsidiaries 
Dividends 

Net cash provided by investing activities 

CASH FLOWS FROM FINANCING ACTIVITIES: 

Capital contributions 
Dividends 

Net cash used in financing activities 

Net increase (decrease) during period 
Cash and cash equivalents at beginning of period 
Cash and cash equivalents at end of period 

2021 

Years ended December 31, 
2020 

2019 

  $ 

442     $ 

299     $ 

604  

(442 )    
—      

(299 )    
—      

(604 ) 
—  

(3 )    
81      
78      

3      
(81 )    
(78 )    
—      
—      
—     $ 

(2 )    
78      
76      

2      
(78 )    
(76 )    
—      
—      
—     $ 

(5 ) 
73  
68  

5  
(73 ) 
(68 ) 
—  
—  
—  

  $ 

The accompanying note is an integral part of the Parent Company only financial statements. 

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Allison Transmission Holdings, Inc. 
Schedule I—Parent Company only Footnote 

NOTE 1—BASIS OF PRESENTATION 

Allison Transmission Holdings, Inc. (the “Parent Company”) is a holding company that conducts all of its 
business operations through its subsidiaries. There are restrictions on the Parent Company’s ability to obtain funds 
from its subsidiaries through dividends (refer to "NOTE 8. Debt” of Notes to Consolidated Financial Statements). 
The entire amount of the Parent Company’s consolidated net assets was subject to restrictions on payment of 
dividends as of December 31, 2021, 2020 and 2019. Accordingly, these financial statements have been presented 
on a “parent-only” basis. Under a parent-only presentation, the Parent Company’s investments in its consolidated 
subsidiaries are presented under the equity method of accounting. These parent-only financial statements should 
be read in conjunction with Allison Transmission Holdings, Inc.’s audited Consolidated Financial Statements 
included elsewhere herein. 

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ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

None. 

ITEM 9A. Controls and Procedures 

Evaluation of Disclosure Controls and Procedures 

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated 

the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the 
Exchange Act), as of December 31, 2021. 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. In addition, the design of disclosure controls 
and procedures must reflect the fact that there are resource constraints and that management is required to apply 
its judgment in evaluating the benefits of possible controls and procedures relative to their costs. 

Based on the evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure 

controls and procedures as of December 31, 2021, the end of the period covered by this Annual Report on Form 
10-K, were effective to provide reasonable assurance that information we are required to disclose in reports that we 
file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods 
specified in the SEC rules and forms, and that such information is accumulated and communicated to our 
management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely 
decisions regarding required disclosure. 

Management’s Report on Internal Control Over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial 
reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act). Our 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. 

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. 

Under the supervision and with the participation of our management, including our Chief Executive Officer and 

Chief Financial Officer, we conducted an assessment of the effectiveness of our internal control over financial 
reporting as of December 31, 2021. In making this assessment, our management used the criteria set forth by the 
Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework 
(2013). Based on this assessment, management concluded that our internal control over financial reporting was 
effective as of December 31, 2021. PricewaterhouseCoopers LLP, our independent registered public accounting 
firm, has audited the effectiveness of our internal control over financial reporting as of December 31, 2021. Their 
report is included in Part II, Item 8., “Financial Statements and Supplementary Data” in this Annual Report on Form 
10-K. 

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Changes in Internal Control Over Financial Reporting 

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-

15(f) under the Exchange Act) during the quarter ended December 31, 2021 that have materially affected, or are 
reasonably likely to materially affect, our internal control over financial reporting. 

ITEM 9B. Other Information 

None. 

ITEM 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections 

Not applicable. 

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ITEM 10. Directors, Executive Officers and Corporate Governance 

PART III. 

The information required by this Item concerning our executive officers, directors and nominees for director 

and Audit Committee members and financial expert(s) and disclosure of delinquent filers under Section 16(a) of the 
Exchange Act is incorporated herein by reference from our definitive Proxy Statement for our 2022 annual meeting 
of stockholders which will be filed with the SEC pursuant to Regulation 14A within 120 days after the end of our last 
fiscal year. 

Code of Business Conduct 

We have adopted the Allison Code of Business Conduct that applies to all of our directors and officers and 

other employees, including our principal executive officer, principal financial officer and principal accounting officer. 
This code is publicly available through the Investor Relations section of our website at 
https://ir.allisontransmission.com. We will post on the Investor Relations section of our website any amendment to 
the Allison Code of Business Conduct, or any grant of a waiver from a provision of the Allison Code of Business 
Conduct. 

ITEM 11. Executive Compensation 

The information required by this Item concerning remuneration of our executive officers and directors, material 
transactions involving such executive officers and directors and Compensation Committee interlocks, as well as the 
Compensation Committee Report and pay ratio disclosure, are incorporated herein by reference to our definitive 
Proxy Statement for our 2022 annual meeting of stockholders which will be filed with the SEC pursuant to 
Regulation 14A within 120 days after the end of our last fiscal year. 

ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder 
Matters 

The information required by this Item concerning the stock ownership of management and five percent 

beneficial owners and securities authorized for issuance under equity compensation plans is incorporated herein by 
reference to our definitive Proxy Statement for our 2022 annual meeting of stockholders which will be filed with the 
SEC pursuant to Regulation 14A within 120 days after the end of our last fiscal year. 

ITEM 13. Certain Relationships and Related Transactions, and Director Independence 

The information required by this Item concerning certain relationships and related person transactions, and 
director independence is incorporated herein by reference to our definitive Proxy Statement for our 2022 annual 
meeting of stockholders which will be filed with the SEC pursuant to Regulation 14A within 120 days after the end of 
our last fiscal year. 

ITEM 14. Principal Accounting Fees and Services 

The information required by this Item concerning the fees and services of our independent registered public 

accounting firm and our Audit Committee actions with respect thereto is incorporated herein by reference to our 
definitive Proxy Statement for our 2022 annual meeting of stockholders which will be filed with the SEC pursuant to 
Regulation 14A within 120 days after the end of our last fiscal year. 

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ITEM 15. Exhibits and Financial Statement Schedules 

(a)(1) Financial Statements. 

PART IV. 

The response to this item is included in Part II, Item 8. of this Annual Report on Form 10-K. 

(a)(2) Financial Statement Schedules. 

Schedule I – Parent Company only Balance Sheets as of the years ended December 31, 2021 and 2020, 
Schedule I – Parent Company only Statements of Comprehensive Income for the years ended December 31, 2021, 
2020 and 2019, Schedule I – Parent Company only Statements of Cash Flows for the years ended December 31, 
2021, 2020 and 2019 and Schedule I – Parent Company only Footnote are included in Part II, Item 8. of this Annual 
Report on Form 10-K. All other schedules have been omitted because they are not required or because the 
information required is included in the consolidated financial statements and notes thereto. 

(a)(3) Exhibits 

See the response to Item 15(b) below. 

(b) Exhibits 

The following exhibits are filed as part of, or are incorporated by reference into, this Annual Report on Form 

10-K: 

Exhibit 
No. 

    3.1 

    3.2 

    3.3 

    4.1 

    4.2 

    4.3 

    4.4 

    4.5 

    4.6 

DESCRIPTION OF EXHIBIT 

Second Amended and Restated Certificate of Incorporation of Allison Transmission Holdings, Inc. 
(incorporated by reference to Exhibit 3.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter 
ended March 31, 2012 filed April 26, 2012 (File No. 001-35456)) 

Amendment to Second Amended and Restated Certificate of Incorporation of Allison Transmission 
Holdings, Inc. (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K 
filed May 18, 2016) 

Sixth Amended and Restated Bylaws of Allison Transmission Holdings, Inc. (incorporated by reference to 
Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed May 11, 2020) 

Form of Stock Certificate (incorporated by reference to Exhibit 4.1 to Amendment No. 3 to the Registrant’s 
Registration Statement on Form S-1 filed June 17, 2011 (File No. 333-172932)) 

Indenture, dated as of September 23, 2016, between the Issuer and Wilmington Trust, National 
Association, as Trustee (including the form of 5.0% Senior Notes due 2024) (incorporated by reference to 
Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed September 23, 2016) 

Indenture, dated as of September 26, 2017, between the Issuer and Wilmington Trust, National 
Association, as Trustee (including form of 4.75% Senior Notes due 2027) (incorporated by reference to 
Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed September 26, 2017) 

Indenture, dated as of March 29, 2019, between the Issuer and Wilmington Trust, National Association, as 
Trustee (including form of 5.875% Senior Notes due 2029) (incorporated by reference to Exhibit 4.1 to the 
Registrant’s Current Report on Form 8-K filed March 29, 2019) 

Indenture, dated as of November 19, 2020, between the Issuer and Wilmington Trust, National 
Association, as Trustee (including form of 3.75% Senior Notes due 2031) (incorporated by reference to 
Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed November 19, 2020) 

Description of Securities (incorporated by reference to Exhibit 4.5 to the Registrant’s Annual Report on 
Form 10-K for the fiscal year ended December 31, 2019 filed February 27, 2020) 

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  10.1 

  10.2 

  10.3 

  10.4 

  10.5 

  10.6 

Second Amended and Restated Credit Agreement, dated as of March 29, 2019, among Allison 
Transmission Holdings, Inc., Allison Transmission, Inc., as Borrower, the several banks and other financial 
institutions or entities from time to time parties thereto as lenders and Citibank, N.A., as Administrative 
Agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed 
March 29, 2019) 

Amendment No. 1 dated October 11, 2019, to the Second Amended and Restated Credit Agreement, 
dated as of March 29, 2019, among Allison Transmission Holdings, Inc., Allison Transmission, Inc., as 
Borrower, the several banks and other financial institutions or entities from time to time parties thereto as 
lenders, Citibank, N.A as Administrative Agent and as the 2019 refinancing term lender and the other 
agents and arrangers party thereto (incorporated by reference to Exhibit 10.1 to the Registrant’s Current 
Report on Form 8-K filed October 15, 2019) 

Amendment No. 2 dated as of November 19, 2020, by and among Allison Transmission Holdings, Inc., 
Allison Transmission, Inc., as Borrower, the several banks and other financial institutions party thereto, as 
2020 Revolving Credit Lenders and Citibank, N.A., as Administrative Agent amending the Second 
Amended and Restated Credit Agreement, dated as of March 29, 2019, among Allison Transmission 
Holdings, Inc., Allison Transmission, Inc., the several banks and other financial institutions or entities from 
time to time parties thereto as lenders, Citibank, N.A., as Administrative Agent and Citicorp North America, 
Inc., as Collateral Agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on 
Form 8-K filed November 19, 2020) 

Guarantee And Collateral Agreement made by Allison Transmission Holdings, Inc., Allison Transmission, 
Inc., as Borrower, and the Subsidiary Guarantors party thereto in favor of Citicorp North America, Inc., as 
Administrative Agent, dated as of August 7, 2007 (incorporated by reference to Exhibit 10.3 to the 
Registrant’s Registration Statement on Form S-1 filed March 18, 2011 (File No. 333-172932)) 

Trademark Security Agreement made by Allison Transmission, Inc. in favor of Citicorp North America, Inc., 
as Administrative Agent, dated as of August 7, 2007 (incorporated by reference to Exhibit 10.4 to the 
Registrant’s Registration Statement on Form S-1 filed March 18, 2011 (File No. 333-172932)) 

Copyright Security Agreement made by Allison Transmission, Inc. in favor of Citicorp North America, Inc., 
as Administrative Agent, dated as of August 7, 2007 (incorporated by reference to Exhibit 10.5 to 
Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 filed May 16, 2011 (File No. 
333-172932)) 

  10.7* 

Allison Transmission Holdings, Inc. 2015 Equity Incentive Award Plan (incorporated by reference to 
Appendix A to the Registrant’s Definitive Proxy Statement on Schedule 14A filed April 2, 2015) 

  10.8* 

Allison Transmission Holdings, Inc. 2016 Incentive Plan (incorporated by reference to Appendix B to the 
Registrant’s Definitive Proxy Statement on Schedule 14A filed April 2, 2015) 

  10.9* 

Form of 2015 Equity Incentive Award Plan Restricted Stock Agreement (incorporated by reference to 
Exhibit 10.41 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2015 filed 
February 19, 2016) 

  10.10* 

Form of 2015 Equity Incentive Award Plan Restricted Stock Unit Agreement (incorporated by reference to 
Exhibit 10.42 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2015 filed 
February 19, 2016) 

  10.11* 

Form of 2015 Equity Incentive Award Plan Stock Option Agreement (incorporated by reference to Exhibit 
10.43 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2015 filed 
February 19, 2016) 

  10.12* 

Form of 2015 Equity Incentive Award Plan Performance Stock Unit Agreement (incorporated by reference 
to Exhibit 10.25 to the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2016 
filed February 24, 2017) 

  10.13* 

Allison Transmission Holdings, Inc. 2011 Equity Incentive Award Plan (incorporated by reference to 
Exhibit 10.10 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 filed June 17, 
2011 (File No. 333-172932)) 

  10.14* 

Form of 2011 Equity Incentive Award Plan Restricted Stock Unit Agreement (incorporated by reference to 
Exhibit 10.12 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 filed June 17, 
2011 (File No. 333-172932)) 

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  10.15* 

Form of 2011 Equity Incentive Award Plan Stock Option Agreement (incorporated by reference to Exhibit 
10.13 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 filed June 17, 2011 
(File No. 333-172932)) 

  10.16* 

Form Amendment to Stock Option Agreement under the Allison Transmission Holdings, Inc. 2011 Equity 
Incentive Award Plan and Equity Incentive Plan of Allison Transmission Holdings, Inc. (incorporated by 
reference to Exhibit 10.27 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 
30, 2013 filed July 30, 2013 (File No. 001-35456)) 

  10.17* 

Form of 2011 Equity Incentive Award Plan Stock Option Agreement (incorporated by reference to Exhibit 
10.29 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013 filed 
October 29, 2013 (File No. 001-35456)) 

  10.18* 

Deferred Compensation Plan of Allison Transmission Inc. (incorporated by reference to Exhibit 10.21 to 
the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012 filed July 31, 2012) 

  10.19* 

Fifth Amended and Restated Non-Employee Director Compensation Policy (incorporated by reference to 
Exhibit 10.21 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 
2019 filed February 27, 2020) 

  10.20* 

Amended and Restated Non-Employee Director Deferred Compensation Plan of Allison Transmission 
Holdings, Inc. (incorporated by reference to Exhibit 10.38 to the Registrant’s Quarterly Report on Form 10-
Q for the quarter ended March 31, 2015 filed April 28, 2015) 

  10.21* 

Form of Allison Transmission Holdings, Inc. Indemnification Agreement (incorporated by reference to 
Exhibit 10.9 to Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 filed May 16, 
2011 (File No. 333-172932)) 

  10.22* 

Form of Change in Control Severance Agreement (incorporated by reference to Exhibit 10.34 to the 
Registrant’s Annual Report on Form 10-K for the year ended December 31, 2013 filed February 24, 2014) 

  10.23* 

Severance and Change in Control Agreement, between Allison Transmission, Inc. and David S. Graziosi, 
dated as of March 23, 2018 (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report 
on Form 8-K filed March 23, 2018) 

  10.24* 

Separation Agreement, between Allison Transmission, Inc. and Randall R. Kirk, dated as of May 26, 2021 
(incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed May 27, 
2021) 

  10.25* 

Separation Agreement, between Allison Transmission, Inc. and Michael A. Dick, dated as of January 26, 
2022 (incorporated by reference to Exhibit 10.1 to the Registration’s Current Report on Form 8-K filed 
January 27, 2022) 

  14.1 

Code of Business Conduct (incorporated by reference to Exhibit 14.1 to the Registrant’s Annual Report on 
Form 10-K for the fiscal year ended December 31, 2018 filed February 26, 2019) 

  21.1 

  List of Subsidiaries of Allison Transmission Holdings, Inc. (filed herewith) 

  23.1 

  Consent of PricewaterhouseCoopers LLP (filed herewith) 

  31.1 

  31.2 

  32.1 

101 

Certification pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934 of the Chief 
Executive Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith) 

Certification pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934 of the Chief 
Financial Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith) 

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002 (filed herewith) 

The following financial information from the Registrant’s Annual Report on Form 10-K for the fiscal year 
ended December 31, 2021, formatted in Inline XBRL (eXtensible Business Reporting Language): (i) the 
Consolidated Balance Sheets; (ii) the Consolidated Statements of Comprehensive Income; (iii) the 
Consolidated Statements of Cash Flows; (iv) the Consolidated Statements of Stockholders’ Equity; (v) the 
Notes to Consolidated Financial Statements; (vi) the Parent Company only Balance Sheets; (vii) the 
Parent Company only Statements of Comprehensive Income; (viii) the Parent Company only Statements 
of Cash Flows; and (ix) the Parent Company only Footnote 

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104 

Cover Page Interactive Data File – The cover page from the Registrant’s Annual Report on Form 10-K for 
the fiscal year ended December 31, 2021, formatted in Inline XBRL and contained in Exhibit 101 

* Indicates a management contract or compensatory plan or arrangement 

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ITEM 16. Form 10-K Summary 

Intentionally left blank.

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SIGNATURES 

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. 

Date: February 17, 2022 

  Allison Transmission Holdings, Inc. 

(Registrant) 

By:   

/s/ David S. Graziosi 

  David S. Graziosi 

Chairman, President and Chief Executive 
Officer (Principal Executive Officer) 

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. 

SIGNATURES 

CAPACITY 

DATE 

/s/ David S. Graziosi 
David S. Graziosi 

Chairman, President and Chief Executive Officer (Principal 
Executive Officer) 

February 17, 2022 

/s/ G. Frederick Bohley 
G. Frederick Bohley 

Senior Vice President, Chief Financial Officer and Treasurer 
(Principal Financial Officer and Principal Accounting Officer) 

February 17, 2022 

/s/ Judy Altmaier 
Judy Altmaier 

/s/ Stan A. Askren 
Stan A. Askren 

/s/ David C. Everitt 
David C. Everitt 

/s/ Alvaro Garcia-Tunon 
Alvaro Garcia-Tunon 

/s/ Carolann I. Haznedar 
Carolann I. Haznedar 

/s/ Richard P. Lavin 
Richard P. Lavin 

/s/ Thomas W. Rabaut 
Thomas W. Rabaut 

/s/ Richard V. Reynolds 
Richard V. Reynolds 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

Director 

February 17, 2022 

February 17, 2022 

February 17, 2022 

February 17, 2022 

February 17, 2022 

February 17, 2022 

February 17, 2022 

February 17, 2022 

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COMMON STOCK
The common stock of Allison Transmission 
Holdings Inc. trades on the New York 
Stock Exchange under the symbol ALSN.

ANNUAL MEETING
Our annual stockholder’s meeting will be 
held virtually at 10 am on May 4, 2022. 

FORM 10-K
Copies of Allison’s form 10-K as filed  
with the Securities and Exchange 
Commission are available free of charge  
by visiting the website (allisontransmission.
com) or by contacting: Investor Relations, 
Allison Transmission Holdings Inc.,  
One Allison Way, Indianapolis, IN 46222, 
317-242-3078

TRANSFER AGENT + REGISTRAR
American Stock Transfer &  
Trust Company LLC, 6201 15th Ave., 
Brooklyn, NY 11219,  
Investor Relations Department,  
800-937-5449

INDEPENDENT AUDITORS
PricewaterhouseCoopers LLP,  
101 W. Washington St., Suite 1300, 
Indianapolis, IN 46204

CORPORATE INFORMATION

BOARD OF  
DIRECTORS

David S. Graziosi 
Chairman, President  
& Chief Executive Officer  
Allison Transmission Holdings, Inc.

Judy L. Altmaier
Retired, Vice President 
Exmark Manufacturing Co

Stan A. Askren
Retired, Chairman, President & CEO  
HNI Corporation

David C. Everitt
Retired, President 
Deere & Company

Alvara Garcia-Tunon
Retired, CFO
Wabtec Corporation

Carolann I. Haznedar
Retired, Senior Vice President
E.I. du Pont de Nemours & Company

Richard P. Lavin
Retired, President & CEO
Commercial Vehicle Group Inc.

Thomas W. Rabaut
Operating Executive
The Carlyle Group

Richard V. Reynolds
Retired, Lieutenant General,  
Founder & Owner
The VanFleet Group LLC

CORPORATE  
LEADERSHIP TEAM

David S. Graziosi
Chairman, President  
& Chief Executive Officer 

Rohan Barua
Vice President, North America Sales,  
Global Channel & Aftermarket

Rafael Basso
Vice President, Operations

G. Frederick Bohley
Senior Vice President, Chief Financial Officer 
& Treasurer

Todd R. Bradford
Vice President, Strategy, Business  
& Corporate Development

John M. Coll
Senior Vice President, Global Marketing, 
Sales & Service

Thomas D. Eifert
Vice President, Quality, Planning  
& Program Management

Ryan A. Milburn
Vice President, Product Engineering

JK Pareek
Vice President, IS&S  
& Chief Information Officer

Lorraine S. Parker-Clegg
Vice President, Human Resources  
& Chief People Officer

Dana J.H. Pittard
Vice President, Defense Programs

Conrad L. Rockey
Vice President, Commercial Powertrain 
Engineering

Heidi K. Schutte
Vice President, EMEA, APAC & South 
American Sales

Eric C. Scroggins
Vice President, General Counsel

Teresa J. van Niekerk
Vice President, Global Purchasing  
& Supplier Quality

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One Allison Way
Indianapolis, IN 46222-3271
317-242-5000
allisontransmission.com