Form 4 Filing for David S. Graziosi - Allison Transmission Holdings Inc

This filing reports on a transaction by David S. Graziosi, Chair, President, and CEO of Allison Transmission Holdings Inc. The transaction, dated August 31, 2026, involved the acquisition of 131 Dividend Equivalent Rights (DERs) with a reported price of $0.0. These DERs are economically equivalent to shares of the company's common stock and accrue on previously awarded restricted stock units (RSUs). Following this transaction, Mr. Graziosi holds 799 shares. The underlying security for these DERs is Allison Transmission Holdings, Inc. Common Stock. The filing was signed on September 2, 2026, by Preston B. Ray as attorney-in-fact.