AlphaYouDS
Insider selling
David S. Graziosi sold $3.6M of Allison Transmission Holdings Inc (ALSN) stock
David S. Graziosi, Chair, President and CEO of Allison Transmission Holdings Inc (ALSN), sold 26,708 shares of ALSN stock worth $3.6M, per an SEC Form 4 filed Aug 26, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Aug 21, 2026, 5 days before it was made public.
ALSN has moved -10.8% since the trade date, from $133.23 to $118.86 (Sep 21, 2026 close).
- Traded
- Aug 21, 2026
- Disclosed
- Aug 26, 2026
- Filing delay
- 5 days
- Price since
- -10.8%
- Role
- Chair, President and CEO
- Source
- SEC Form 4
More ALSN insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.