Dudediligence.

TransDigm Group Incorporated

TDGNYSE · Aircraft Parts & Auxiliary Equipment, NEC
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$532.8M

27 notices · 399,256 sh

Oct 2025 to Oct 2026

Reported ·

$458.1M

442 sales · 8 buys · $3,838,005 bought

Oct 2025 to Jun 2026

The two figures cover different periods.

353 of 442 reported sales carry the 10b5-1 box. Together they are 0.62% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-15: JOEL REISS, Form 1442026-08-07: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442026-06-18: Howley W Nicholas, Form 1442026-06-15: JOEL REISS, Form 1442026-02-18: Howley W Nicholas, Form 1442026-02-17: JOEL REISS, Form 1442026-02-02: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442026-02-02: PATRICK J. MURPHY, Form 1442026-01-14: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442026-01-08: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442026-01-05: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442026-01-02: PATRICK J. MURPHY, Form 1442025-12-10: ROBERT SMALL, Form 1442025-12-09: Stockbridge Partners LLC, Form 1442025-12-04: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-12-01: PATRICK J. MURPHY, Form 1442025-11-28: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-26: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-25: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-21: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-20: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-18: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-11-17: Howley W Nicholas, Form 1442025-11-17: JOEL REISS, Form 1442025-11-03: PATRICK J. MURPHY, Form 1442025-10-27: PATRICK JOSEPH MURPHY, Form 1442025-10-27: THE FORTUNA TRUST U/T/A DTD 06/01/2018, Form 1442025-10-15: Howley W Nicholas, sold2025-10-20: Reiss Joel, sold2025-10-27: Murphy Patrick Joseph, sold2025-10-27: Stein Kevin M, sold2025-11-03: Murphy Patrick Joseph, sold2025-11-14: Lisman Michael, bought2025-11-17: Howley W Nicholas, sold2025-11-17: Reiss Joel, sold2025-11-18: Stein Kevin M, sold2025-11-20: Stein Kevin M, sold2025-11-21: Stein Kevin M, sold2025-11-25: Stein Kevin M, sold2025-11-28: Stein Kevin M, sold2025-12-01: Murphy Patrick Joseph, sold2025-12-04: Stein Kevin M, sold2025-12-09: SMALL ROBERT J, sold2025-12-10: SMALL ROBERT J, sold2025-12-15: Reiss Joel, sold2026-01-02: Murphy Patrick Joseph, sold2026-01-05: Stein Kevin M, sold2026-01-08: Stein Kevin M, sold2026-01-14: Stein Kevin M, sold2026-01-15: Reiss Joel, sold2026-02-02: Murphy Patrick Joseph, sold2026-02-02: Stein Kevin M, sold2026-02-02: Stein Kevin M, sold2026-02-06: Lisman Michael, bought2026-02-17: Reiss Joel, sold2026-02-18: Howley W Nicholas, sold2026-02-25: SMALL ROBERT J, bought2026-03-16: Reiss Joel, sold2026-03-18: Howley W Nicholas, sold2026-04-15: Reiss Joel, sold2026-04-20: Howley W Nicholas, sold2026-05-15: Reiss Joel, sold2026-05-18: Howley W Nicholas, sold2026-06-15: Reiss Joel, sold2026-06-18: Howley W Nicholas, sold2026-06-18: Howley W Nicholas, sold2026-06-18: Howley W Nicholas, sold
under a no plan named▼ sale▲ buysize is dollars

Form 144 notices, newest first

2026-09-15JOEL REISS, Co-Chief Operating Officer$8,889,760
8,000 shplan 2025-08-12Form 4s on file end Jun 23144 ↗
2026-08-07THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$47.6M
37,690 shplan 2026-05-07Form 4s on file end Jun 23144 ↗
2026-06-18Howley W Nicholas, Officer$40.1M
30,396 shplan 2025-11-29144 ↗
Form 4, 2026-06-22: sold 10,132 at $1319.55 Form 4 ↗
2026-06-15JOEL REISS, Co-Chief Operating Officer$14.7M
11,700 shplan 2025-08-12144 ↗
Form 4, 2026-06-16: sold 3,900 at $1276.78 Form 4 ↗
2026-02-18Howley W Nicholas, Officer$53.0M
40,564 shplan 2025-11-19144 ↗
Form 4, 2026-02-20: sold 10,168 at $1307.68 Form 4 ↗
2026-02-17JOEL REISS, Co-Chief Operating Officer$20.1M
15,600 shplan 2025-08-12144 ↗
Form 4, 2026-02-18: sold 3,900 at $1293.88 Form 4 ↗
2026-02-02THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$68.5M
48,000 shplan 2025-06-02144 ↗
Form 4, 2026-02-03: sold 36,925 at $1425.78 Form 4 ↗
2026-02-02PATRICK J. MURPHY, Co-Chief Operating Officer$1,655,946
1,160 shplan 2025-06-02no Form 4 on file144 ↗
2026-01-14THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$10.5M
7,627 shplan 2025-06-02144 ↗
Form 4, 2026-01-16: sold 7,627 at $1406.38 Form 4 ↗
2026-01-08THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$24.1M
17,373 shplan 2025-06-02144 ↗
Form 4, 2026-01-09: sold 17,373 at $1407.25 Form 4 ↗
2026-01-05THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$34.0M
25,000 shplan 2025-06-02144 ↗
Form 4, 2026-01-06: sold 25,000 at $1373.59 Form 4 ↗
2026-01-02PATRICK J. MURPHY, Co-Chief Operating Officer$385,657
290 shplan 2025-06-02144 ↗
Form 4, 2026-01-05: sold 290 at $1329.03 Form 4 ↗
2025-12-10ROBERT SMALL, Director$6,063,879
4,700 shno plan date144 ↗
Form 4, 2025-12-09: sold 90,953 at $1335.72 Form 4 ↗
2025-12-09Stockbridge Partners LLC, May be deemed affiliate$134.7M
100,000 shno plan dateno Form 4 on file144 ↗
2025-12-04THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$23.4M
17,526 shplan 2025-06-02144 ↗
Form 4, 2025-12-05: sold 17,526 at $1362.29 Form 4 ↗
2025-12-01PATRICK J. MURPHY, Co-Chief Operating Officer$394,449
290 shplan 2025-06-02144 ↗
Form 4, 2025-12-02: sold 290 at $1351.06 Form 4 ↗
2025-11-28THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$6,222,206
4,592 shplan 2025-06-02144 ↗
Form 4, 2025-12-01: sold 4,592 at $1360.73 Form 4 ↗
2025-11-26THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$40,576
30 shplan 2025-06-02no Form 4 on file144 ↗
2025-11-25THE FORTUNA TRUST U/T/A DTD 06/01/2018, Director$5,592,827
4,187 shplan 2025-06-02144 ↗
Form 4, 2025-11-26: sold 4,217 at $1360.57 Form 4 ↗
2025-11-21THE FORTUNA TRUST U/T/A DTD 06/01/2018, Officer$305,410
230 shplan 2025-06-02144 ↗
Form 4, 2025-11-24: sold 230 at $1360.31 Form 4 ↗
2025-11-20THE FORTUNA TRUST U/T/A DTD 06/01/2018, Officer$1,480,674
1,104 shplan 2025-06-02144 ↗
Form 4, 2025-11-21: sold 1,104 at $1360.89 Form 4 ↗
2025-11-18THE FORTUNA TRUST U/T/A DTD 06/01/2018, Officer$9,605,522
7,191 shplan 2025-06-02144 ↗
Form 4, 2025-11-19: sold 7,191 at $1361.57 Form 4 ↗
2025-11-17Howley W Nicholas, Officer$3,652,334
2,736 shplan 2024-03-12144 ↗
Form 4, 2025-11-17: sold 2,736 at $1334.92 Form 4 ↗
2025-11-17JOEL REISS, Co-Chief Operating Officer$15.7M
11,700 shplan 2025-08-12144 ↗
Form 4, 2025-11-18: sold 3,900 at $1340.00 Form 4 ↗
2025-11-03PATRICK J. MURPHY, Co-Chief Operating Officer$379,468
290 shplan 2025-06-02144 ↗
Form 4, 2025-11-04: sold 290 at $1310.00 Form 4 ↗
2025-10-27PATRICK JOSEPH MURPHY, Co-Chief Operating Officer$788,394
580 shplan 2025-06-02144 ↗
Form 4, 2025-10-28: sold 580 at $1354.76 Form 4 ↗
2025-10-27THE FORTUNA TRUST U/T/A DTD 06/01/2018, Officer$951,510
700 shplan 2025-06-02144 ↗
Form 4, 2025-10-28: sold 700 at $1360.00 Form 4 ↗