TransDigm's top three insider shareholders as of September 29, 2026 are Robert J Small (Director, 1.00Mn shares), Robert J Small (Director, 366.14K shares), Raymond F Laubenthal (President And Coo, 156.59K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Raymond F Laubenthal | President And Coo | 156,595 | 0 | 156,595 | 55.2% | 29 Mar, 2022 |
| 2 | Sean P Hennessy | Director | 33,836 | 0 | 33,836 | 11.9% | 21 Sep, 2026 |
| 3 | David Barr | Director | 32,225 | 0 | 32,225 | 11.4% | 21 Sep, 2026 |
| 4 | Kevin M Stein | President Ceo | 0 | 19,233 | 19,233 | 6.8% | 03 Feb, 2026 |
| 5 | Iii Jorge L. Valladares | Coo | 11,085 | 0 | 11,085 | 3.9% | 26 Mar, 2025 |
| 6 | Robert J Small | Director | 5,677 | 0 | 5,677 | 2.0% | 21 Sep, 2026 |
| 7 | Sarah Wynne | Chief Financial Officer | 4,894 | 0 | 4,894 | 1.7% | 06 Feb, 2026 |
| 8 | Peter Palmer | Executive Vice President | 4,064 | 0 | 4,064 | 1.4% | 21 Sep, 2026 |
| 9 | Joel Reiss | Co Chief Operating Officer | 3,600 | 0 | 3,600 | 1.3% | 16 Sep, 2026 |
| 10 | Michael Lisman | President Ceo | 3,259 | 0 | 3,259 | 1.1% | 09 Feb, 2026 |
| 11 | Patrick Joseph Murphy | Co Chief Operating Officer | 2,515 | 0 | 2,515 | 0.9% | 25 Feb, 2026 |
| 12 | Michael Graff | Director | 1,717 | 0 | 1,717 | 0.6% | 21 Sep, 2026 |
| 13 | Mervin Dunn | Director | 1,562 | 0 | 1,562 | 0.6% | 18 Nov, 2022 |
| 14 | Gary E Mccullough | Director | 993 | 0 | 993 | 0.4% | 21 Sep, 2026 |
| 15 | Michele Santana | Director | 805 | 0 | 805 | 0.3% | 21 Sep, 2026 |
| 16 | Jane M. Cronin | Director | 734 | 0 | 734 | 0.3% | 21 Sep, 2026 |
| 17 | Jessica L Warren | Gc, Cco, Secretary | 575 | 0 | 575 | 0.2% | 13 May, 2025 |
| 18 | W Nicholas Howley | Chief Executive Officer | 239 | 0 | 239 | 0.1% | 21 Sep, 2026 |
| 19 | John Staer | Director | 91 | 0 | 91 | 0.0% | 14 Mar, 2023 |
| 20 | Irina Igorevna Krasik | Director | 13 | 0 | 13 | 0.0% | 21 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 18 Sep, 2026 | Michele Santana | Director | Acquired A | 34 | $1,085.00 | $36.89K | 805 | Direct |
| 18 Sep, 2026 | Irina Igorevna Krasik | Director | Acquired A | 13 | $1,085.00 | $14.11K | 13 | Direct |
| 18 Sep, 2026 | W Nicholas Howley | Director | Acquired A | 126 | $1,085.00 | $136.71K | 239 | Direct |
| 18 Sep, 2026 | Sean P Hennessy | Director | Acquired A | 46 | $1,085.00 | $49.91K | 33,836 | Direct |
| 18 Sep, 2026 | Jane M. Cronin | Director | Acquired A | 34 | $1,085.00 | $36.89K | 734 | Direct |
| 18 Sep, 2026 | Robert J Small | Director | Acquired A | 52 | $1,085.00 | $56.42K | 5,677 | Direct |
| 18 Sep, 2026 | Michael Graff | Director | Acquired A | 34 | $1,085.00 | $36.89K | 1,717 | Direct |
| 18 Sep, 2026 | Gary E Mccullough | Director | Acquired A | 41 | $1,085.00 | $44.49K | 993 | Direct |
| 18 Sep, 2026 | David Barr | Director | Acquired A | 46 | $1,085.00 | $49.91K | 32,225 | Direct |
| 18 Sep, 2026 | Peter Palmer | Director | Acquired A | 34 | $1,085.00 | $36.89K | 4,064 | Direct |
| 18 Aug, 2026 | W Nicholas Howley | Director | Acquired M | 10,132 | $66.47 | $673.47K | 31,680 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 204 | $1,225.60 | $250.02K | 31,476 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 70 | $1,227.62 | $85.93K | 31,406 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 290 | $1,229.09 | $356.44K | 31,116 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 570 | $1,230.02 | $701.11K | 30,546 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 830 | $1,231.12 | $1.02Mn | 29,716 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 1,055 | $1,232.01 | $1.30Mn | 28,661 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 450 | $1,233.30 | $554.99K | 28,211 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 270 | $1,234.69 | $333.37K | 27,941 | Indirect |
| 18 Aug, 2026 | W Nicholas Howley | Director | Disposed S | 140 | $1,236.12 | $173.06K | 27,801 | Indirect |