As of April 11, 2026, TransDigm's top three insider holders are Robert J Small (Director, 1.00Mn shares), Robert J Small (Director, 366.14K shares), Raymond F Laubenthal (President And Coo, 156.59K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert J Small | - | 0 | 1,001,252 | 21 Feb, 2023 |
| Robert J Small | - | 0 | 366,142 | 27 Feb, 2026 |
| Raymond F Laubenthal | President And Coo | 156,595 | 0 | 29 Mar, 2022 |
| Robert J Small | - | 0 | 68,139 | 09 Dec, 2025 |
| Robert J Small | - | 0 | 60,246 | 02 Jun, 2023 |
| W Nicholas Howley | - | 0 | 49,079 | 19 Nov, 2024 |
| W Nicholas Howley | - | 0 | 44,980 | 17 Oct, 2024 |
| Sean P Hennessy | - | 33,790 | 0 | 23 Mar, 2026 |
| David Barr | - | 32,179 | 0 | 23 Mar, 2026 |
| Kevin M Stein | President Ceo | 0 | 23,133 | 14 Aug, 2024 |
| W Nicholas Howley | Exec. Chairman Of The Board | 0 | 21,548 | 19 Mar, 2026 |
| Kevin M Stein | President Ceo | 0 | 19,233 | 03 Feb, 2026 |
| Iii Jorge L. Valladares | Coo | 11,085 | 0 | 26 Mar, 2025 |
| Michael Graff | - | 0 | 7,000 | 13 Jun, 2025 |
| Robert J Small | - | 5,625 | 0 | 11 Dec, 2025 |
| Michael Graff | - | 0 | 5,096 | 18 Mar, 2024 |
| Sarah Wynne | Chief Financial Officer | 4,894 | 0 | 06 Feb, 2026 |
| Peter Palmer | Executive Vice President | 4,030 | 0 | 23 Mar, 2026 |
| Joel Reiss | Co Chief Operating Officer | 3,600 | 0 | 17 Mar, 2026 |
| Michael Lisman | President Ceo | 3,259 | 0 | 09 Feb, 2026 |
| Patrick Joseph Murphy | Co Chief Operating Officer | 2,515 | 0 | 25 Feb, 2026 |
| Michael Lisman | President Ceo | 0 | 1,954 | 17 Nov, 2025 |
| Michael Graff | - | 1,683 | 0 | 23 Mar, 2026 |
| Mervin Dunn | - | 1,562 | 0 | 18 Nov, 2022 |
| Gary E Mccullough | - | 952 | 0 | 23 Mar, 2026 |
| Michele Santana | - | 771 | 0 | 23 Mar, 2026 |
| Jane M. Cronin | - | 700 | 0 | 23 Mar, 2026 |
| Jessica L Warren | Gc, Cco, Secretary | 575 | 0 | 13 May, 2025 |
| W Nicholas Howley | Chief Executive Officer | 113 | 0 | 23 Mar, 2026 |
| John Staer | - | 91 | 0 | 14 Mar, 2023 |
| John Staer | - | 0 | 26 | 02 Dec, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 20 Mar, 2026 | Jane M. Cronin | Common Stock | A | 30 | $1,214.66 | 700 | D | A |
| 20 Mar, 2026 | Peter Palmer | Common Stock | A | 30 | $1,214.66 | 4,030 | D | A |
| 20 Mar, 2026 | Sean P Hennessy | Common Stock | A | 41 | $1,214.66 | 33,790 | D | A |
| 20 Mar, 2026 | W Nicholas Howley | Common Stock | A | 113 | $1,214.66 | 113 | D | A |
| 20 Mar, 2026 | David Barr | Common Stock | A | 41 | $1,214.66 | 32,179 | D | A |
| 20 Mar, 2026 | Michele Santana | Common Stock | A | 30 | $1,214.66 | 771 | D | A |
| 20 Mar, 2026 | Michael Graff | Common Stock | A | 30 | $1,214.66 | 1,683 | D | A |
| 20 Mar, 2026 | Gary E Mccullough | Common Stock | A | 37 | $1,214.66 | 952 | D | A |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | A | 10,132 | $50.92 | 31,680 | I | M |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 202 | $1,205.42 | 31,478 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 507 | $1,206.05 | 30,971 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 91 | $1,207.38 | 30,880 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 324 | $1,208.56 | 30,556 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 1,246 | $1,209.52 | 29,310 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 1,376 | $1,210.39 | 27,934 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 1,182 | $1,211.46 | 26,752 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 2,025 | $1,212.57 | 24,727 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 1,159 | $1,213.45 | 23,568 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 552 | $1,214.40 | 23,016 | I | S |
| 18 Mar, 2026 | W Nicholas Howley | Common Stock | D | 125 | $1,215.51 | 22,891 | I | S |