SEC Form 4 · Updated Daily
TDG
— TRANSDIGM GROUP INCORPORATED OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| LEE KEWSONG | Director · Officer | 14,410,837 | 2007-12-10 | J |
| Kruse Kevin | Director | 14,410,837 | 2007-12-10 | J |
| WARBURG PINCUS LLC | 10%+ Owner · Director | 2,632,857 | 2009-06-10 | J |
| WARBURG PINCUS & CO. | Director | 2,632,857 | 2009-06-10 | J |
| Warburg Pincus Private Equity VIII, L.P. | Director | 2,632,857 | 2009-06-10 | J |
| Warburg Pincus Partners LLC | 10%+ Owner · Director | 2,632,857 | 2009-06-10 | J |
| TD Group Holdings, LLC | 10%+ Owner | 2,632,857 | 2009-06-10 | J |
| Laubenthal Raymond F | Director | 156,595 | 2022-03-28 | A |
| Iversen Bernt G II | Officer | 70,010 | 2020-09-14 | M |
| HENNESSY SEAN P | Director | 33,836.09 | 2026-09-18 | A |
| Rufus Gregory | Officer | 33,000 | 2016-05-10 | M |
| BARR DAVID | Director | 32,225 | 2026-09-18 | A |
| Leary John F | Officer | 30,000 | 2016-06-13 | M |
| Littleton W Todd | Officer | 19,868 | 2006-03-20 | S |
| Stein Kevin M | Director | 17,812 | 2026-02-02 | S |
| Peacock Douglas W | Director | 16,687 | 2018-02-16 | M |
| Henderson Robert S | Officer | 10,000 | 2021-02-24 | M |
| Skulina James | Officer | 9,000 | 2019-10-10 | M |
| Jones Roger | Officer | 9,000 | 2018-06-18 | M |
| Reiss Joel | Officer | 7,700 | 2026-10-15 | M |
| Riley James M | Officer | 7,500 | 2011-12-15 | M |
| Rodriguez Albert J | Officer | 6,982 | 2012-05-07 | M |
| Valladares III Jorge L. | Director | 6,217 | 2025-05-13 | M |
| Dunn Mervin | Director | 6,040 | 2022-11-16 | M |
| SMALL ROBERT J | Director | 5,677 | 2026-09-18 | J |
| Feil Alex | Officer | 5,444 | 2018-02-09 | M |
| Wynne Sarah | Officer | 4,894 | 2026-02-05 | M |
| Maroney Sean P | Officer | 4,700 | 2015-05-15 | M |
| Palmer Peter | Director | 4,064 | 2026-09-18 | A |
| Tenerowicz John | Officer | 4,000 | 2015-08-17 | M |
| McClelland Ralph | Officer | 4,000 | 2008-03-12 | M |
| Ciolli Vince | Officer | 3,500 | 2014-02-06 | M |
| Lisman Michael | Director · Officer | 3,259 | 2026-02-06 | P |
| Borowski Michael D | Officer | 3,000 | 2014-08-07 | M |
| Skurka Howard | Officer | 2,910 | 2006-10-04 | M |
| Murphy Patrick Joseph | Officer | 2,515 | 2026-02-24 | M |
| DRIES WILLIAM | Director | 2,316 | 2020-03-17 | J |
| Paradie Terrance M | Officer | 2,107 | 2018-04-02 | J |
| Terrion Halle Fine | Officer | 2,073 | 2020-11-24 | M |
| Graff Michael | Director | 1,717 | 2026-09-18 | A |
| Sheffler Dudley P | Director | 1,630 | 2009-09-22 | A |
| Rubiano Rodrigo | Officer | 1,070 | 2018-01-24 | — |
| Warren Jessica L | Officer | 1,065 | 2025-05-13 | M |
| MCCULLOUGH GARY E | Director | 993 | 2026-09-18 | A |
| Santana Michele | Director | 805 | 2026-09-18 | A |
| CRONIN JANE M. | Director | 733.62 | 2026-09-18 | A |
| Howley W Nicholas | Director | 239 | 2026-09-18 | A |
| Staer John | Director | 91 | 2023-02-10 | S |
| Krasik Irina Igorevna | Director | 13 | 2026-09-18 | A |
| Frailey Kevin | Officer | 0 | 2014-11-10 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-15 | Reiss Joel | Option exercise (derivative) | 4,100 | $0.00 | 0 |
| 2026-10-15 | Reiss Joel | Open-market sale | 438 | $1135.95 | 3,600 |
| 2026-10-15 | Reiss Joel | Open-market sale | 495 | $1135.00 | 4,038 |
| 2026-10-15 | Reiss Joel | Open-market sale | 317 | $1133.89 | 4,533 |
| 2026-10-15 | Reiss Joel | Open-market sale | 210 | $1132.30 | 4,850 |
| 2026-10-15 | Reiss Joel | Open-market sale | 130 | $1131.33 | 5,060 |
| 2026-10-15 | Reiss Joel | Open-market sale | 100 | $1130.06 | 5,190 |
| 2026-10-15 | Reiss Joel | Open-market sale | 150 | $1129.38 | 5,290 |
| 2026-10-15 | Reiss Joel | Open-market sale | 120 | $1127.90 | 5,440 |
| 2026-10-15 | Reiss Joel | Open-market sale | 305 | $1127.01 | 5,560 |
| 2026-10-15 | Reiss Joel | Open-market sale | 278 | $1125.86 | 5,865 |
| 2026-10-15 | Reiss Joel | Open-market sale | 600 | $1125.00 | 6,143 |
| 2026-10-15 | Reiss Joel | Open-market sale | 306 | $1124.00 | 6,743 |
| 2026-10-15 | Reiss Joel | Open-market sale | 131 | $1123.09 | 7,049 |
| 2026-10-15 | Reiss Joel | Open-market sale | 60 | $1121.58 | 7,180 |
| 2026-10-15 | Reiss Joel | Open-market sale | 30 | $1120.30 | 7,240 |
| 2026-10-15 | Reiss Joel | Open-market sale | 100 | $1119.01 | 7,270 |
| 2026-10-15 | Reiss Joel | Open-market sale | 60 | $1117.11 | 7,370 |
| 2026-10-15 | Reiss Joel | Open-market sale | 50 | $1116.02 | 7,430 |
| 2026-10-15 | Reiss Joel | Open-market sale | 100 | $1114.82 | 7,480 |
| 2026-10-15 | Reiss Joel | Open-market sale | 100 | $1113.58 | 7,580 |
| 2026-10-15 | Reiss Joel | Open-market sale | 20 | $1112.27 | 7,680 |
| 2026-10-15 | Reiss Joel | Option exercise | 4,100 | $284.97 | 7,700 |
| 2026-09-18 | BARR DAVID | Grant / award | 46 | $1085.00 | 32,225 |
| 2026-09-18 | CRONIN JANE M. | Grant / award | 34 | $1085.00 | 733.62 |
| 2026-09-18 | Graff Michael | Grant / award | 34 | $1085.00 | 1,717 |
| 2026-09-18 | HENNESSY SEAN P | Grant / award | 46 | $1085.00 | 33,836.09 |
| 2026-09-18 | MCCULLOUGH GARY E | Grant / award | 41 | $1085.00 | 993 |
| 2026-09-18 | Santana Michele | Grant / award | 34 | $1085.00 | 805 |
| 2026-09-18 | SMALL ROBERT J | Grant / award | 52 | $1085.00 | 5,677 |
| 2026-09-18 | Krasik Irina Igorevna | Grant / award | 13 | $1085.00 | 13 |
| 2026-09-18 | Howley W Nicholas | Grant / award | 126 | $1085.00 | 239 |
| 2026-09-18 | Palmer Peter | Grant / award | 34 | $1085.00 | 4,064 |
| 2026-09-18 | SMALL ROBERT J | J | 0 | $0.00 | 5,677 |
| 2026-09-15 | Reiss Joel | Option exercise (derivative) | 3,900 | $0.00 | 4,100 |
| 2026-09-15 | Reiss Joel | Open-market sale | 20 | $1118.99 | 3,600 |
| 2026-09-15 | Reiss Joel | Open-market sale | 20 | $1113.37 | 3,620 |
| 2026-09-15 | Reiss Joel | Open-market sale | 30 | $1112.38 | 3,640 |
| 2026-09-15 | Reiss Joel | Open-market sale | 30 | $1108.34 | 3,670 |
| 2026-09-15 | Reiss Joel | Open-market sale | 40 | $1106.69 | 3,700 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.