Financial Performance - Net sales for the year ended December 31, 2024, were 3,225million,anincreaseof63,035 million in 2023[197]. - Net income for 2024 was 731million,representing23673 million, or 22% of net sales in 2023[196]. - Adjusted EBITDA for 2024 was 1,165million,withanAdjustedEBITDAmarginof36.11,529 million, an increase of 4% from 1,470millionin2023,drivenby80 million in price increases and 62millioninincreasednetsales[200].−Basicearningspershareattributabletocommonstockholdersincreasedto8.40 in 2024 from 7.48in2023[275].−Thecompanyreportedacomprehensiveincomeof711 million for 2024, compared to 664millionin2023[275].SalesandRevenueBreakdown−NorthAmericaOn−Highwaynetsalesincreasedby223 million, or 15%, driven by demand for Class 8 vocational and medium-duty trucks[197]. - Defense end market net sales rose by 46million,or2862 million, or 37%, primarily due to lower demand from the energy sector in North America[197]. - Revenue from North America On-Highway increased to 1,752millionin2024,up14.61,529 million in 2023[344]. - Defense revenue rose to 212millionin2024,a27.7166 million in 2023[344]. Costs and Expenses - Cost of sales for 2024 was 1,696million,anincreaseof81,565 million in 2023, driven by higher direct material and manufacturing expenses[198]. - Selling, general and administrative expenses decreased by 6% to 337millionin2024from357 million in 2023, primarily due to lower intangible amortization expenses[201]. - Engineering expenses increased by 3% to 200millionin2024,upfrom194 million in 2023, mainly due to increased spending on product initiatives[202]. - Net interest expense decreased by 17% to 89millionin2024from107 million in 2023, attributed to higher interest income and lower interest expense due to a 101millionprincipalrepayment[203].CashFlowandInvestments−Cashflowsfromoperatingactivitiesgenerated801 million in 2024, an increase from 784millionin2023,drivenbyhighergrossprofitandlowercashinterestpayments[218].−Cashusedforinvestingactivitiesroseto147 million in 2024 from 129millionin2023,primarilyduetoincreasedcapitalexpenditures[219].−Cashusedforfinancingactivitiesincreasedto427 million in 2024 from 332millionin2023,mainlyduetohigherlong−termdebtpayments[220].−Thecompanyrepurchasedapproximately254 million of its common stock in 2024, with 519millionremainingavailableundertheRepurchaseProgram[215].AssetsandLiabilities−TotalassetsasofDecember31,2024,were5,336 million, compared to 5,025millionin2023,markinga6.23,685 million in 2024 from 3,792millionin2023,areductionof2.81.651 billion, up from 1.233billionin2023[281].−AsofDecember31,2024,thetotallong−termdebtoftheCompanyis2,414 million, a decrease from 2,518millionin2023[372].MarketandEconomicFactors−A105 million per year[252]. - Approximately 65% of the company's cost of sales consists of purchased components, with significant exposure to fluctuations in aluminum and steel prices[253]. - A 10% variation in aluminum prices would change earnings by approximately 8millionperyear,whileasimilarvariationinsteelpriceswouldchangeearningsbyapproximately13 million per year[254]. Employee and Labor Relations - The UAW Local 933 ratified a new four-year collective bargaining agreement, leading to increased labor costs[177]. - Stock-based compensation increased to 26millionin2024from22 million in 2023[281]. - Dividends on common stock were 1.00persharein2024,comparedto0.92 per share in 2023[281]. Company Overview - Allison Transmission Holdings, Inc. is the largest global manufacturer of medium- and heavy-duty fully automatic transmissions[283]. - The company operates a global distribution network with approximately 1,600 independent distributor and dealer locations[176]. - The company has been headquartered in Indianapolis, Indiana since its founding in 1915[283].