Form 4: Allison Transmission Holdings CEO Sells Shares
Insider Transaction (Form 4)
David S. Graziosi, Chair, President and CEO and a Director of Allison Transmission Holdings Inc, sold 26,708 shares of common stock on August 21, 2026.
Summary
- Option exercise/conversion: acquired 26,708 Common Stock at $38.11 ($1,017,842) on August 21, 2026; holds 331,551 after (Direct).
- Open-market sale: disposed of 13,100 Common Stock at $132.44 ($1,734,914) on August 21, 2026; holds 318,451 after (Direct).
- Open-market sale: disposed of 9,050 Common Stock at $133.21 ($1,205,565) on August 21, 2026; holds 309,401 after (Direct).
- Open-market sale: disposed of 4,558 Common Stock at $134.05 ($610,990) on August 21, 2026; holds 304,843 after (Direct).
- Option exercise/conversion: disposed of 26,708 Employee Stock Option (right to buy) on August 21, 2026; holds 17,593 after (Direct).
Sentiment
Score: 3
Explanation: StockSavvy.ai views this as a mildly negative signal: an insider sold $3,551,470 of stock on the open market.
Insider Transactions
David S. Graziosi — Director, Officer (Chair, President and CEO)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-21 | Option exercise/conversion | Common Stock | 26,708 | $38 | $1.0M | 331,551 |
| 2026-08-21 | Open-market sale | Common Stock | 13,100 | $132 | $1.7M | 318,451 |
| 2026-08-21 | Open-market sale | Common Stock | 9,050 | $133 | $1.2M | 309,401 |
| 2026-08-21 | Open-market sale | Common Stock | 4,558 | $134 | $611.0K | 304,843 |
| 2026-08-21 | Option exercise/conversion | Employee Stock Option (right to buy) | 26,708 | — | — | 17,593 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-21 | Option exercise/conversion (26,708 shares) |
| 2026-08-21 | Open-market sale (13,100 shares) |
| 2026-08-21 | Open-market sale (9,050 shares) |
| 2026-08-21 | Open-market sale (4,558 shares) |
| 2026-08-21 | Option exercise/conversion (26,708 shares) |
Keywords
insider transaction, Form 4, ALSN, Allison Transmission Holdings Inc, bearish, David S. Graziosi
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