Welcome to our dedicated page for Allison Transmission Holdings SEC filings (Ticker: ALSN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on Allison Transmission Holdings's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.
Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time EDGAR feed updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into Allison Transmission Holdings's regulatory disclosures and financial reporting.
EVERITT DAVID C reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director David C. Everitt received a grant of deferred stock units as part of his annual board compensation. He was awarded 1,503 deferred stock units, each economically equivalent to one share of common stock, based on a closing share price of $123.02 on the grant date.
Following this grant, Everitt holds 36,131 deferred stock units directly. These units vest at the next annual stockholder meeting and become payable in common stock or, at the company’s election, cash upon his separation from service or a change in control, and they earn dividend equivalents while outstanding.
BARBOUR D. SCOTT reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director D. Scott Barbour reported routine equity compensation activity. On May 7, 2026, he received 1,503 restricted stock units (RSUs) as his annual equity award under the company’s non-employee director compensation policy, each RSU representing one share of common stock.
On May 6, 2026, previously granted awards vested and were settled into common stock, including 1,570 RSUs and 16 dividend equivalent rights, as well as a quarterly director retainer paid in stock of 92 shares. Following these transactions, he directly holds 13,281 shares of common stock and 1,503 RSUs.
Allison Transmission Holdings Inc director Sasha Ostojic reported compensation-related equity transactions. On May 7, 2026, Ostojic received a grant of 1,503 restricted stock units (RSUs) as an annual equity award under the company’s Non-Employee Director Compensation Policy.
The number of RSUs was calculated using a common stock closing price of $123.02 on the grant date. On May 6, 2026, previously granted 1,570 RSUs and 16 dividend equivalent rights settled into 1,586 shares of common stock, increasing Ostojic’s direct common stock holdings to 10,560 shares. These entries reflect grants and derivative exercises, with no open-market purchases or sales.
Shivram Krishna reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director Krishna Shivram reported routine equity compensation activity. On May 7, 2026, he received 1,503 Restricted Stock Units (RSUs) as his annual equity award, with the grant size based on a $123.02 closing share price.
On May 6, 2026, previously granted 1,570 RSUs and 16 dividend equivalent rights settled into 1,586 shares of common stock. Following these transactions he directly holds 9,633 shares of common stock and 1,503 RSUs, with no open-market buys or sells reported.
Allison Transmission Holdings Inc director Philip J. Christman reported a series of equity compensation awards and conversions with no open‑market buying or selling. He received 1,503 Restricted Stock Units (RSUs), each representing one share of common stock, as his annual equity award under the company’s Non-Employee Director Compensation Policy.
On the same date, 1,570 previously granted RSUs vested, along with 16 related dividend equivalent rights, and were settled in common stock. Christman also acquired 92 shares of common stock as a quarterly payment of his annual director retainer, calculated using a closing share price of $127.70. The new RSU grant was based on a closing share price of $123.02.
Allison Transmission Holdings director Gustave Perna reported equity compensation activity and derivative exercises. On May 7, 2026, he received a grant of 1,503 restricted stock units (RSUs) as his annual equity award under the company’s Non-Employee Director Compensation Policy. Each RSU represents a contingent right to receive one share of common stock.
On May 6, 2026, 1,570 previously granted RSUs and 16 related dividend equivalent rights vested and were settled, resulting in the acquisition of 1,586 shares of common stock. After these transactions, Perna directly holds 9,633 shares of Allison Transmission common stock.
Allison Transmission Holdings reported first‑quarter 2026 net sales of $1,406 million, up from $766 million a year earlier, driven by the acquisition of Dana’s off‑highway business, now the Allison Off‑Highway segment.
Despite higher revenue, net income fell to $112 million from $192 million as acquisition effects, including a $63 million inventory step‑up and higher depreciation and amortization, weighed on margins. Allison Off‑Highway delivered $673 million of net sales but a segment operating loss of $21 million in its first quarter with the company.
The purchase price for the off‑highway business was $2,628 million, funded with cash and new debt, lifting total long‑term debt to $4,295 million. Operating cash flow was $156 million, with $53 million of capital spending, producing adjusted free cash flow of $103 million. Management highlights the acquisition as expanding drivetrain, motion and propulsion offerings and diversifying end‑markets across construction, agriculture, mining and industrial applications.
Allison Transmission Holdings reported first quarter 2026 net sales of $1,406 million, up 84% year over year, driven mainly by the newly acquired Allison Off-Highway business unit, which contributed $673 million. Legacy Allison Transmission net sales were $733 million, a 4% decrease from the prior year period.
GAAP net income was $112 million, down from $192 million, as acquisition-related costs, inventory step-up and higher depreciation reduced profit. Diluted EPS was $1.33, while adjusted diluted EPS rose to $2.57, reflecting $216 million of adjusted net income.
Adjusted EBITDA increased to $362 million with a 26% margin. The company generated $156 million of operating cash flow and $103 million of adjusted free cash flow, repaid $150 million on its revolver, paid a $0.29 dividend and repurchased over $20 million of stock. Management reaffirmed full-year 2026 guidance and expects $1,365–$1,515 million of adjusted EBITDA and $655–$805 million of adjusted free cash flow.
Allison Transmission Holdings Inc ownership disclosure: Vanguard Capital Management reported beneficial ownership of 4,340,063 shares of Allison Transmission common stock, equal to 5.22% of the class as of 03/31/2026. The filing shows Vanguard has sole dispositive power over 4,340,063 shares and sole voting power for 626,368 shares.
The Schedule 13G filing is signed by Ashley Grim as Head of Global Fund Administration on 04/29/2026 and includes the standard affiliate disclosure describing funds and managed accounts over which Vanguard exercises dispositive power.
Vanguard Portfolio Management reported beneficial ownership of 4,210,532 shares of Allison Transmission Holdings Inc Common Stock, representing 5.06% of the class as reported in a Schedule 13G. The filing states Vanguard has 21,621 shares of sole voting power and 4,210,532 shares of sole dispositive power. The filing attributes holdings to Vanguard Portfolio Management LLC and affiliated divisions and notes holdings include securities held for Vanguard funds and managed accounts.