David S. Graziosi - 28 Feb 2026 Form 4 Insider Report for Allison Transmission Holdings Inc (ALSN)

Signature
/s/ Preston B. Ray, attorney-in-fact
Issuer symbol
ALSN
Transactions as of
28 Feb 2026
Net transactions value
-$4,349,539
Form type
4
Filing time
03 Mar 2026, 16:00:04 UTC
Previous filing
27 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Graziosi David S. Chair, President and CEO, Director C/O ALLISON TRANSMISSION HOLDINGS, INC., ONE ALLISON WAY, INDIANAPOLIS /s/ Preston B. Ray, attorney-in-fact 03 Mar 2026 0001543492

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALSN Common Stock Options Exercise +78,893 +30% 339,556 28 Feb 2026 Direct F1
transaction ALSN Common Stock Tax liability $4,349,539 -34,713 -10% $125.30 304,843 28 Feb 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALSN Performance Stock Units Options Exercise $0 -78,893 -100% $0.000000 0 28 Feb 2026 Common Stock 78,893 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Settlement of performance-based restricted stock units ("PSUs") granted on February 22, 2023. Each PSU represents a contingent right to receive one share of Allison Transmission Holdings, Inc. ("ALSN") common stock.
F2 Represents shares withheld by ALSN to satisfy tax withholding obligations on the vesting of PSUs.