Company

Allison Transmission Holdings Inc

ALSN · CIK 0001411207

SEC FORM 4

$1,017,841.88

Acquisition (code M) of 26,708 shares at $38.11 per share.

Reporting Person Graziosi David S. · Officer Title Chair, President and CEO · Transaction Code M

Traded Aug 21, 2026 · Disclosed Aug 25, 2026

Source: SEC Form 4 · 0001193125-26-365668 · filed 2026-08-25 · View filing →

SEC FORM 4

$1,734,914.22

Sale of 13,100 shares at $132.4362 per share.

Reporting Person Graziosi David S. · Officer Title Chair, President and CEO · Transaction Code S

Traded Aug 21, 2026 · Disclosed Aug 25, 2026

Source: SEC Form 4 · 0001193125-26-365668 · filed 2026-08-25 · View filing →

SEC FORM 4

$1,205,564.98

Sale of 9,050 shares at $133.2116 per share.

Reporting Person Graziosi David S. · Officer Title Chair, President and CEO · Transaction Code S

Traded Aug 21, 2026 · Disclosed Aug 25, 2026

Source: SEC Form 4 · 0001193125-26-365668 · filed 2026-08-25 · View filing →

SEC FORM 4

$610,990.33

Sale of 4,558 shares at $134.0479 per share.

Reporting Person Graziosi David S. · Officer Title Chair, President and CEO · Transaction Code S

Traded Aug 21, 2026 · Disclosed Aug 25, 2026

Source: SEC Form 4 · 0001193125-26-365668 · filed 2026-08-25 · View filing →

SEC FORM 4

$131,250.00

Sale of 1,050 shares at $125.00 per share.

Reporting Person Scroggins Eric C. · Officer Title CLO & Asst. Secretary · Transaction Code S

Traded Aug 11, 2026 · Disclosed Aug 13, 2026

Source: SEC Form 4 · 0001193125-26-349536 · filed 2026-08-13 · View filing →