Quick Takeaways
- TDG - TransDigm Group INC has 22 insiders with reported activity on this page.
- Net insider value flow over the last year: -$629,590,455.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 22 Insiders of TransDigm Group INC
- Symbol
- TDG on NYSE
- Location
- Cleveland, OH
What Changed
- Buy value: $3,838,007; sell value: $633,428,461.
- Net share flow: -455,663.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$629,590,455.
Buys
$3,838,007
Shares: 2,905
Insiders: 2
Sells
$633,428,462
Shares: 458,568
Insiders: 10
Net
-$629,590,455
Shares: -455,663
Insiders: -8
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 951 | 87,917 | $1,221,333 | $120,735,695 | -$119,514,362 |
| 3-6 | 1,954 | 191,308 | $2,616,674 | $258,006,064 | -$255,389,390 |
| 6-9 | 0 | 23,968 | $0 | $33,319,367 | -$33,319,367 |
| 9-12 | 0 | 155,375 | $0 | $221,367,336 | -$221,367,336 |
TransDigm Group INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Robert J. Small | Director | $661,054,690 | -$199,058,216 | -23% | Mixed | 25 Feb 2026 |
| Raymond F. Laubenthal | Director | $161,022,285 | Mixed | 28 Mar 2022 | ||
| Sean P. Hennessy | Director | $43,762,221 | -$6,751,660 | -13% | Mixed | 20 Mar 2026 |
| David Barr | Director | $41,675,666 | Mixed | 20 Mar 2026 | ||
| W. Nicholas Howley | Director | $38,753,244 | -$132,228,481 | -77% | Mixed | 20 Mar 2026 |
| Michael Graff | Director | $17,845,457 | -$2,467,687 | -12% | Mixed | 20 Mar 2026 |
| Kevin M. Stein | Director | $11,751,435 | -$213,060,435 | -95% | Filing P/S | 02 Feb 2026 |
| Michael Lisman | President & CEO, Director | $6,858,262 | +$3,836,722 | +127% | Mixed | 06 Feb 2026 |
| Peter Palmer | Director | $5,219,333 | Mixed | 20 Mar 2026 | ||
| Joel Reiss | Co-Chief Operating Officer | $4,500,915 | -$55,348,820 | -92% | Filing P/S | 16 Mar 2026 |
| Sarah Wynne | Chief Financial Officer | $2,739,563 | -$7,256,865 | -73% | Mixed | 05 Feb 2026 |
| Mervin Dunn. | Director | $1,606,161 | Mixed | 16 Nov 2022 | ||
| Gary E. McCullough | Director | $1,232,954 | Mixed | 20 Mar 2026 | ||
| Michele Santana | Director | $998,537 | Mixed | 20 Mar 2026 | ||
| Jane M. Cronin | Director | $906,091 | Mixed | 20 Mar 2026 | ||
| Patrick Joseph Murphy | Co-Chief Operating Officer | $873,132 | -$2,357,616 | -73% | Mixed | 24 Feb 2026 |
| Jessica L. Warren | GC, CCO, Secretary | $819,375 | -$698,250 | -46% | Filing P/S | 13 May 2025 |
| John Staer | Director | $93,573 | Mixed | 10 Feb 2023 | ||
| III Jorge L. Valladares | Director | $0 | -$14,199,147 | -100% | Mixed | 13 May 2025 |
| Halle Fine Terrion | GC, CCO, Secretary | Mixed | 12 Nov 2021 | |||
| Armani Vadiee | GC, CCO, Secretary | Mixed | 04 Nov 2025 | |||
| Robert S. Henderson | Exec.V.P. | Mixed | 01 Nov 2021 |
Top shareholders of TransDigm Group INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
12%
|
6,799,539
|
$9,042,366,940 | — | 31 Dec 2025 | |
| Capital International Investors |
13F
|
Company |
12%
|
6,544,423
|
$8,702,655,463 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
7.6%
|
4,298,292
|
$5,716,083,676 | — | 31 Dec 2025 | |
| Capital World Investors |
13D/G
13F
|
Company |
6.8%
|
3,812,855
|
$5,368,080,426 | $0 | 31 Dec 2024 | |
| Capital Research Global Investors |
13F
|
Company |
4.4%
|
2,476,661
|
$3,293,527,397 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.4%
|
2,456,186
|
$3,266,358,952 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
3.9%
|
2,166,523
|
$2,881,230,870 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
2.9%
|
1,619,293
|
$2,153,417,183 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.2%
|
1,231,871
|
$1,630,619,910 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.8%
|
993,009
|
$1,320,554,282 | — | 31 Dec 2025 | |
| ALTAROCK PARTNERS LP |
13F
|
Company |
1.7%
|
969,400
|
$1,289,156,590 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
852,237
|
$1,133,349,659 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.4%
|
771,208
|
$1,025,590,959 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.3%
|
746,559
|
$992,813,000 | — | 31 Dec 2025 | |
| Soroban Capital Partners LP |
13F
|
Company |
1.3%
|
747,970
|
$985,839,419 | — | 31 Dec 2025 | |
| EDGEWOOD MANAGEMENT LLC |
13F
|
Company |
1%
|
581,412
|
$773,190,748 | — | 31 Dec 2025 | |
| WINDACRE PARTNERSHIP LLC |
13F
|
Company |
1%
|
566,100
|
$752,828,085 | — | 31 Dec 2025 | |
| Robert J. Small |
3/4/5
|
Director |
0.89%
|
500,152
|
$661,054,690 | -$199,058,216 | 25 Feb 2026 | |
| UBS Group AG |
13F
|
Company |
0.83%
|
464,509
|
$617,727,294 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.82%
|
460,269
|
$612,088,729 | — | 31 Dec 2025 | |
| Stockbridge Partners LLC |
13F
|
Company |
0.77%
|
434,280
|
$577,527,258 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.76%
|
427,968
|
$569,133,443 | — | 31 Dec 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
|
Company |
0.73%
|
410,217
|
$545,527,078 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.71%
|
396,578
|
$527,389,253 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
0.67%
|
376,593
|
$500,812,201 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.57%
|
321,608
|
$427,690,482 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.55%
|
309,790
|
$411,974,238 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.52%
|
293,092
|
$389,768,544 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.52%
|
292,323
|
$388,745,918 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.52%
|
289,814
|
$385,409,147 | — | 31 Dec 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.45%
|
252,781
|
$336,160,813 | — | 31 Dec 2025 | |
| Vulcan Value Partners, LLC |
13F
|
Company |
0.43%
|
240,620
|
$320,028,000 | — | 31 Dec 2025 | |
| CANADA PENSION PLAN INVESTMENT BOARD |
13F
|
Company |
0.41%
|
230,999
|
$307,194,020 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.38%
|
215,810
|
$286,994,928 | — | 31 Dec 2025 | |
| Darsana Capital Partners LP |
13F
|
Company |
0.36%
|
200,000
|
$265,970,000 | — | 31 Dec 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.35%
|
196,768
|
$261,671,925 | — | 31 Dec 2025 | |
| CIBC Private Wealth Group LLC |
13F
|
Company |
0.34%
|
191,421
|
$254,560,837 | — | 31 Dec 2025 | |
| Heard Capital LLC |
13F
|
Company |
0.3%
|
170,629
|
$226,910,976 | — | 31 Dec 2025 | |
| BLAIR WILLIAM & CO/IL |
13F
|
Company |
0.3%
|
170,230
|
$226,380,718 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.3%
|
169,018
|
$224,768,587 | — | 31 Dec 2025 | |
| ALKEON CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.29%
|
165,611
|
$220,237,775 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.28%
|
154,950
|
$206,036,630 | — | 31 Dec 2025 | |
| Swiss National Bank |
13F
|
Company |
0.27%
|
153,910
|
$204,677,214 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.27%
|
151,702
|
$201,739,423 | — | 31 Dec 2025 | |
| DF DENT & CO INC |
13F
|
Company |
0.27%
|
149,748
|
$199,141,775 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.26%
|
146,043
|
$194,216,234 | — | 31 Dec 2025 | |
| Temasek Holdings (Private) Ltd |
13F
|
Company |
0.26%
|
145,538
|
$193,543,709 | — | 31 Dec 2025 | |
| Veritas Asset Management LLP |
13F
|
Company |
0.25%
|
141,842
|
$188,628,584 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.25%
|
138,108
|
$183,662,923 | — | 31 Dec 2025 | |
| National Pension Service |
13F
|
Company |
0.24%
|
132,680
|
$176,444,498 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for TransDigm Group INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Peter Palmer | TDG | Common Stock | Award | 0.75% | 30 | 4,030 | 20 Mar 2026 | Direct | ||
| Jane M. Cronin | TDG | Common Stock | Award | 4.48% | 30 | 700 | 20 Mar 2026 | Direct | ||
| Sean P. Hennessy | TDG | Common Stock | Award | 0.12% | 41 | 33,790 | 20 Mar 2026 | Direct | ||
| Gary E. Mccullough | TDG | Common Stock | Award | 4.04% | 37 | 952 | 20 Mar 2026 | Direct | ||
| Michele Santana | TDG | Common Stock | Award | 4.05% | 30 | 771 | 20 Mar 2026 | Direct | ||
| David Barr | TDG | Common Stock | Award | 0.13% | 41 | 32,179 | 20 Mar 2026 | Direct | ||
| Michael Graff | TDG | Common Stock | Award | 1.81% | 30 | 1,683 | 20 Mar 2026 | Direct | ||
| W. Nicholas Howley | TDG | Common Stock | Award | 113 | 113 | 20 Mar 2026 | Direct | |||
| W. Nicholas Howley | TDG | Common Stock | Sale | -32% | $12,290,630 | $1213.05 | -10,132 | 21,548 | 18 Mar 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 |
| W. Nicholas Howley | TDG | Common Stock | Options Exercise | 47% | 10,132 | 31,680 | 18 Mar 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 | ||
| W. Nicholas Howley | TDG | Stock Option | Options Exercise | -56.2% | -10,132 | 7,908 | 18 Mar 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 | ||
| Joel Reiss | TDG | Common Stock | Sale | -52% | $4,850,431 | $1243.70 | -3,900 | 3,600 | 16 Mar 2026 | Direct |
| Joel Reiss | TDG | Common Stock | Options Exercise | 108.3% | 3,900 | 7,500 | 16 Mar 2026 | Direct | ||
| Joel Reiss | TDG | Stock Option | Options Exercise | -12.4% | -3,900 | 27,500 | 16 Mar 2026 | Direct | ||
| Robert J. Small | TDG | Common Stock | Purchase | $1,285 | $1285.00 | 1 | 366,142 | 25 Feb 2026 | By Stockbridge Fund, L.P. | |
| Patrick Joseph Murphy | TDG | Common Stock | Options Exercise | 138.4% | 1,460 | 2,515 | 24 Feb 2026 | Direct | ||
| Patrick Joseph Murphy | TDG | Stock Option | Options Exercise | -100% | -1,460 | 0 | 24 Feb 2026 | Direct | ||
| W. Nicholas Howley | TDG | Common Stock | Sale | -32.1% | $13,296,510 | $1307.68 | -10,168 | 21,548 | 18 Feb 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 |
| W. Nicholas Howley | TDG | Common Stock | Options Exercise | 47.2% | 10,168 | 31,716 | 18 Feb 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 | ||
| W. Nicholas Howley | TDG | Stock Option | Options Exercise | -36% | -10,168 | 18,040 | 18 Feb 2026 | W. Nicholas Howley Family Trust u/a/d 4/23/99 | ||
| Joel Reiss | TDG | Common Stock | Sale | -52% | $5,046,141 | $1293.88 | -3,900 | 3,600 | 17 Feb 2026 | Direct |
| Joel Reiss | TDG | Common Stock | Options Exercise | 108.3% | 3,900 | 7,500 | 17 Feb 2026 | Direct | ||
| Joel Reiss | TDG | Stock Option | Options Exercise | -11% | -3,900 | 31,400 | 17 Feb 2026 | Direct | ||
| Michael Lisman | TDG | Common Stock | Purchase | 41.1% | $1,220,048 | $1284.26 | 950 | 3,259 | 06 Feb 2026 | Direct |
| Sarah Wynne | TDG | Common Stock | Options Exercise | 43.9% | 1,494 | 4,894 | 05 Feb 2026 | Direct | ||
| Sarah Wynne | TDG | Stock Option | Options Exercise | -29.9% | -1,494 | 3,506 | 05 Feb 2026 | Direct | ||
| Kevin M. Stein | TDG | Common Stock | Sale | -57.6% | $15,886,980 | $1434.49 | -11,075 | 8,158 | 02 Feb 2026 | Fortuna Trust dated June 1, 2018 |
| Kevin M. Stein | TDG | Common Stock | Sale | -65.8% | $52,647,126 | $1425.79 | -36,925 | 19,233 | 02 Feb 2026 | Fortuna Trust dated June 1, 2018 |
| Kevin M. Stein | TDG | Common Stock | Options Exercise | 588.4% | 48,000 | 56,158 | 02 Feb 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Stock Option. | Options Exercise | -72.8% | -48,000 | 17,940 | 02 Feb 2026 | Fortuna Trust dated June 1, 2018 | ||
| Patrick Joseph Murphy | TDG | Common Stock | Sale | -21.6% | $414,729 | $1430.10 | -290 | 1,055 | 02 Feb 2026 | Direct |
| Patrick Joseph Murphy | TDG | Common Stock | Options Exercise | 27.5% | 290 | 1,345 | 02 Feb 2026 | Direct | ||
| Patrick Joseph Murphy | TDG | Stock Option | Options Exercise | -20% | -290 | 1,160 | 02 Feb 2026 | Direct | ||
| Joel Reiss | TDG | Common Stock | Sale | -52% | $5,576,695 | $1429.92 | -3,900 | 3,600 | 15 Jan 2026 | Direct |
| Joel Reiss | TDG | Common Stock | Options Exercise | 108.3% | 3,900 | 7,500 | 15 Jan 2026 | Direct | ||
| Joel Reiss | TDG | Stock Option | Options Exercise | -9.95% | -3,900 | 35,300 | 15 Jan 2026 | Direct | ||
| Kevin M. Stein | TDG | Common Stock | Sale | -48.3% | $10,726,454 | $1406.38 | -7,627 | 8,158 | 14 Jan 2026 | Fortuna Trust dated June 1, 2018 |
| Kevin M. Stein | TDG | Common Stock | Options Exercise | 93.5% | 7,627 | 15,785 | 14 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Stock Option. | Options Exercise | -15.1% | -7,627 | 43,000 | 14 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Common Stock | Sale | -68% | $24,448,106 | $1407.25 | -17,373 | 8,158 | 08 Jan 2026 | Fortuna Trust dated June 1, 2018 |
| Kevin M. Stein | TDG | Common Stock | Options Exercise | 213% | 17,373 | 25,531 | 08 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Stock Option. | Options Exercise | -25.6% | -17,373 | 50,627 | 08 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Common Stock | Sale | -75.4% | $34,339,837 | $1373.59 | -25,000 | 8,158 | 05 Jan 2026 | Fortuna Trust dated June 1, 2018 |
| Kevin M. Stein | TDG | Common Stock | Options Exercise | 306.4% | 25,000 | 33,158 | 05 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Kevin M. Stein | TDG | Stock Option | Options Exercise | -55.6% | -25,000 | 20,000 | 05 Jan 2026 | Fortuna Trust dated June 1, 2018 | ||
| Patrick J. Murphy | TDG | Common Stock | Sale | -21.6% | $385,419 | $1329.03 | -290 | 1,055 | 02 Jan 2026 | Direct |
| Patrick J. Murphy | TDG | Common Stock | Options Exercise | 27.5% | 290 | 1,345 | 02 Jan 2026 | Direct | ||
| Patrick J. Murphy | TDG | Stock Option | Options Exercise | -16.7% | -290 | 1,450 | 02 Jan 2026 | Direct | ||
| Joel Reiss | TDG | Common Stock | Sale | -52% | $5,033,033 | $1290.52 | -3,900 | 3,600 | 15 Dec 2025 | Direct |
| Joel Reiss | TDG | Common Stock | Options Exercise | 108.3% | 3,900 | 7,500 | 15 Dec 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.