Allison Transmission Holdings, Inc. filings document the operating results, governance, capital structure and material events of a NYSE-listed manufacturer of fully automatic transmissions and off-highway drive and motion systems. Form 8-K reports cover quarterly and annual financial results, investor presentation materials, dividend and capital allocation disclosures, and material agreements involving credit facilities and financing arrangements.
Allison's proxy and annual-meeting filings describe board elections, auditor ratification, advisory executive-compensation votes, corporate responsibility and sustainability disclosures, board composition, and compensation plans. The company's filings also identify its common stock, listed under ALSN, and provide formal disclosure around shareholder voting matters, executive severance arrangements and the completed expansion of its off-highway business.
Christman Philip J reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings director Philip J. Christman received a grant of 3 dividend equivalent rights linked to previously awarded restricted stock units.
Each right is economically equivalent to one share of Allison Transmission common stock, giving him 3 such derivative rights reported after this transaction.
Allison Transmission Holdings Inc director Gustave Perna reported an automatic compensation-related grant of dividend equivalent rights. On May 29, 2026, he acquired 3 dividend equivalent rights tied to previously awarded restricted stock units. Each right is the economic equivalent of one share of common stock and will vest in proportion to the underlying RSUs, resulting in 3 derivative rights held directly after the transaction.
Price Michael Craig reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc reported that officer Michael Craig Price received a grant of 42 Dividend Equivalent Rights on 2026-05-29. These rights accrued on previously awarded restricted stock units and increased his holdings in this derivative security to 84 rights.
Each Dividend Equivalent Right is described as the economic equivalent of one share of Allison Transmission common stock and will vest proportionately with the related restricted stock units. The filing shows this as a compensation-related grant, with no open-market purchases or sales reported in this transaction.
Ostojic Sasha reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director Sasha Ostojic reported a small compensation-related award. On May 29, 2026, Ostojic received 3 Dividend Equivalent Rights tied to previously granted restricted stock units.
Each right is the economic equivalent of one share of common stock and will vest proportionately with the related RSUs. The award is recorded as a derivative security and reflects routine equity-based director compensation rather than an open-market trade.
HAZNEDAR CAROLANN I reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director Carolann I. Haznedar received a grant of 59 Dividend Equivalent Rights on May 29, 2026. These rights accrued on previously awarded deferred stock units and vest in step with those units.
Each Dividend Equivalent Right is economically equal to one share of common stock, increasing Haznedar’s derivative-based stake to 1,555 such rights. This is a compensation-related award rather than an open-market trade.
Mell Scott A reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc reported that its CFO & Treasurer, Scott A. Mell, received 31 Dividend Equivalent Rights on May 29, 2026. These rights accrued on previously awarded restricted stock units and will vest in step with those RSUs.
Each dividend equivalent right is economically equal to one share of Allison Transmission common stock, providing additional stock-based compensation rather than a cash payment or open-market purchase. Following this grant, Mell holds 102 Dividend Equivalent Rights linked to common stock.
Altmaier Judy L reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director Judy L. Altmaier received a grant of 57 Dividend Equivalent Rights tied to previously awarded deferred stock units. Each right is economically equivalent to one share of common stock. Following this compensation-related award, she holds 1,434 Dividend Equivalent Rights directly.
Shivram Krishna reported acquisition or exercise transactions in this Form 4 filing.
Allison Transmission Holdings Inc director Shivram Krishna received a small compensation-related award tied to existing equity. He was granted 3 Dividend Equivalent Rights on May 29, 2026, each economically equivalent to one share of common stock and linked to previously awarded restricted stock units. These rights accrued as a result of dividends and will vest in step with the related RSUs, leaving him with 3 such derivative rights directly owned after this transaction.
Allison Transmission Holdings CFO & Treasurer Scott A. Mell reported an option exercise and related share sales. He exercised employee stock options to acquire 1,337 shares of Common Stock at $89.41 per share, then executed open-market sales totaling 2,270 shares at $125.00 per share.
After these transactions, Mell directly holds 1,053 shares of Common Stock. The filing shows a net sale of shares, reflecting an exercise-and-sell pattern that converts a portion of his equity compensation into cash while retaining a smaller remaining share position.
Allison Transmission Holdings Inc. submitted a Rule 144 notice reporting two planned equity events: 993 shares from vesting restricted stock unit awards on 04/14/2026 and 1,337 shares disposed via an employee option exercise and broker-assisted cashless sale on 05/08/2026