Allison Transmission Holdings Inc (ALSN) has 156 open-market insider trades by 41 insiders since 2012. Over the last six months insiders net sold $4.5M. The most active filer is David S. Graziosi, CEO & Chairman +1.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| TC Group, LLC | 10% | — | 3 | $949.5M | 2014-06-09 |
| Partners Ii L. P. Onex | 10% | — | 2 | $896.4M | 2014-06-09 |
| Allison Holding Ltd S.a.r.l. Onex | 10% | — | 2 | $745.6M | 2014-02-28 |
| Executive Investco Llc Allison | 10% | — | 1 | $524.1M | 2014-06-09 |
| Onex US Principals LP | 10% | — | 2 | $499.5M | 2013-11-15 |
| Partners Iv At Holdings L.p. Carlyle | 10% | — | 2 | $486.0M | 2013-12-16 |
| William R. Harker | Dir | — | 3 | $468.5M | 2019-05-09 |
| Carlyle Group L.P. | 10% | — | 1 | $419.3M | 2014-02-28 |
| New PCo II Investments, Ltd. | 10% | — | 1 | $419.3M | 2014-02-28 |
| Partners Gp Inc. Onex | 10% | — | 2 | $411.8M | 2013-12-16 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| David S. Graziosi | CEO & Chairman +1 | Sell | $3.6M | 2026-08-21 |
| Eric C. Scroggins | CLO & Secretary | Sell | $131K | 2026-08-11 |
| G. Frederick Bohley | — | Sell | $485K | 2026-08-10 |
| Scott A. Mell | CFO & Treasurer | Sell | $284K | 2026-05-08 |
| Eric C. Scroggins | Secretary | Sell | $150K | 2026-03-09 |
| G. Frederick Bohley | President & COO | Sell | $1.2M |
Companies that share insiders with ALSN, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2026-02-13 |
| John Coll | SVP & Global MSS | Sell | $177K | 2025-12-31 |
| John Coll | VP | Sell | $302K | 2025-09-30 |
| G. Frederick Bohley | COO | Buy | $266K | 2025-08-14 |
| John Coll | VP | Sell | $339K | 2025-06-30 |
| Ryan A. Milburn | VP | Sell | $718K | 2025-05-21 |
| Eric C. Scroggins | VP & Secretary | Sell | $1.1M | 2025-05-07 |
| John Coll | VP | Sell | $341K | 2025-04-01 |
| Ryan A. Milburn | VP | Sell | $875K | 2025-03-06 |
| Teresa van Niekerk | VP | Sell | $1.7M | 2025-02-27 |