As of the latest Form 4 filed Jun 8, 2026.
What Allison Transmission Holdings Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 40 most recent filings for ALSN.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-08 | 2026-06-04 | Bohley G Frederick See Remarks | FTax | −242.00 | $118.38 | $28.6K | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-04 | Bohley G Frederick, See Remarks | MExercise | +10.00 | — | — | No | Form 4 ↗ |
| 2026-06-08 | 2026-06-04 | Bohley G Frederick, See Remarks | MExercise | +533.00 | — | — | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Mell Scott A CFO & Treasurer | SSale | −1.34K | $125.00 | $167K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Mell Scott A, CFO & Treasurer | MExercise | +1.34K | $89.41 | $120K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-08 | Mell Scott A, CFO & Treasurer | SSale | −933.00 | $125.00 | $117K | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | BARBOUR D. SCOTT Director | MExercise | +1.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | BARBOUR D. SCOTT, Director | AAward | +92.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | Ostojic Sasha Director | MExercise | +1.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | Shivram Krishna Director | MExercise | +1.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | Christman Philip J Director | MExercise | +1.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | Christman Philip J, Director | AAward | +92.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-06 | Perna Gustave Director | MExercise | +1.59K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Mell Scott A CFO & Treasurer | FTax | −879.00 | $128.26 | $113K | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Mell Scott A, CFO & Treasurer | MExercise | +23.00 | — | — | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Mell Scott A, CFO & Treasurer | MExercise | +2.84K | — | — | No | Form 4 ↗ |
| 2026-03-10 | 2026-03-09 | Scroggins Eric C. CLO & Asst. Secretary | SSale | −1.31K | $114.40 | $150K | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Graziosi David S. Chair, President and CEO | FTax | −34.7K | $125.30 | $4.35M | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Graziosi David S., Chair, President and CEO | MExercise | +78.9K | — | — | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Scroggins Eric C. CLO & Asst. Secretary | FTax | −1.60K | $125.30 | $200K | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Scroggins Eric C., CLO & Asst. Secretary | MExercise | +5.45K | — | — | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Bohley G Frederick See Remarks | FTax | −7.58K | $125.30 | $950K | No | Form 4 ↗ |
| 2026-03-03 | 2026-02-28 | Bohley G Frederick, See Remarks | MExercise | +17.1K | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Scroggins Eric C. CLO & Asst. Secretary | FTax | −283.00 | $118.85 | $33.6K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Scroggins Eric C., CLO & Asst. Secretary | MExercise | +36.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Scroggins Eric C., CLO & Asst. Secretary | MExercise | +927.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Bohley G Frederick Allison COO,Pres.&BU Leader AT | FTax | −1.29K | $118.85 | $154K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Bohley G Frederick, Allison COO,Pres.&BU Leader AT | MExercise | +119.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Bohley G Frederick, Allison COO,Pres.&BU Leader AT | MExercise | +2.91K | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Graziosi David S. Chair, President and CEO | FTax | −10.5K | $118.85 | $1.25M | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Graziosi David S., Chair, President and CEO | MExercise | +561.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Graziosi David S., Chair, President and CEO | MExercise | +13.4K | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Graziosi David S., Chair, President and CEO | MExercise | +240.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-22 | Graziosi David S., Chair, President and CEO | MExercise | +10.5K | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Scroggins Eric C. CLO & Asst. Secretary | FTax | −258.00 | $118.85 | $30.7K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Scroggins Eric C., CLO & Asst. Secretary | MExercise | +15.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Scroggins Eric C., CLO & Asst. Secretary | MExercise | +740.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Bohley G Frederick Allison COO,Pres.&BU Leader AT | FTax | −960.00 | $118.85 | $114K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Bohley G Frederick, Allison COO,Pres.&BU Leader AT | MExercise | +50.00 | — | — | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-21 | Bohley G Frederick, Allison COO,Pres.&BU Leader AT | MExercise | +2.22K | — | — | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also ALSN’s full analysis or the market-wide insider trading feed. The tabs above jump to ALSN’s other SEC data.
Source: SEC Form 4 filings for ALSN, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.