TDGNYSEAircraft Parts & Auxiliary Equipment, NECFiscal year ends September 30
TransDigm Group INC
Financials through Q3 FY2026, quarter ended Jun 27, 2026Last filing: 10-Q on Aug 4, 2026
$1142.45+3.11 (+0.27%)
Close on Oct 19, 2026
- Market cap
- $65.58B
- P/E (TTM)
- 32.0
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
95.1%
53M of 55M shares
Institutional holders
1,141
139 new, 94 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
8 buys · 527 sales
Net sold $485.57M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Capital International Investors | 5,578,637 | 9.90% | 13G (passive) amendment | Mar 31, 2026 |
| Capital World Investors | 4,705,728 | 8.30% | 13G (passive) amendment | Mar 31, 2026 |
| Vanguard Capital Management | 4,224,820 | 7.48% | 13G (passive) | Mar 31, 2026 |
| BlackRock, Inc. | 3,919,980 | 7.00% | 13G (passive) amendment | Sep 30, 2024 |
| Capital Research Global Investors | 3,146,345 | 5.60% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of TDG | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Capital International Investors | 5,062,682 | 9.16% | $6.74B | −432,013 | 1.39% |
| BlackRock, Inc. | 4,871,505 | 8.81% | $6.49B | +270,253 | 0.10% |
| Capital World Investors | 4,274,109 | 7.73% | $5.69B | −392,382 | 0.67% |
| Vanguard Capital Management LLC | 3,653,511 | 6.61% | $4.87B | −16,218 | 0.10% |
| Capital Research Global Investors | 3,119,490 | 5.64% | $4.16B | −24,019 | 0.58% |
| Vanguard Portfolio Management LLC | 2,580,994 | 4.67% | $3.44B | +7,907 | 0.15% |
| State Street Corp | 2,559,096 | 4.63% | $3.41B | +42,490 | 0.10% |
| Principal Financial Group Inc | 1,709,129 | 3.09% | $2.28B | −304,655 | 1.12% |
| Geode Capital Management, LLC | 1,286,385 | 2.33% | $1.71B | +9,941 | 0.09% |
| FMR LLC | 1,091,534 | 1.97% | $1.45B | −267,005 | 0.06% |
| Soroban Capital Partners LP | 898,197 | 1.62% | $1.20B | +42,000 | 2.50% |
| Altarock Partners LLC | 875,755 | 1.58% | $1.17B | −33,413 | 27.51% |
| Morgan Stanley | 872,559 | 1.58% | $1.16B | −21,176 | 0.06% |
| JPMorgan Chase & Co | 835,113 | 1.51% | $1.11B | −62,835 | 0.06% |
| Norges Bank | 781,731 | 1.41% | $1.04B | New | 0.10% |
| Windacre Partnership LLC | 684,100 | 1.24% | $911.25M | +174,500 | 9.01% |
| UBS Group AG | 606,686 | 1.10% | $808.13M | +97,018 | 0.10% |
| Price T Rowe Associates Inc /Md/ | 574,438 | 1.04% | $765.18K | −18,257 | 0.08% |
| Invesco Ltd. | 479,551 | 0.87% | $638.78M | +44,960 | 0.05% |
| Northern Trust Corp | 467,543 | 0.85% | $622.79M | +11,699 | 0.07% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 1,141 | 53M | 95.1% | 139 / 447 | 366 / 94 | 3M | 3M |
| Q1 2026 | 1,113 | 53M | 95.7% | 121 / 396 | 413 / 129 | 11M | 5M |
| Q4 2025 | 1,133 | 54M | 97.6% | 180 / 387 | 367 / 101 | 3M | 5M |
| Q3 2025 | 1,073 | 55M | 99.6% | 100 / 419 | 390 / 121 | 4M | 3M |
| Q2 2025 | 1,111 | 54M | 98.5% | 123 / 475 | 337 / 92 | 3M | 2M |
| Q1 2025 | 1,089 | 53M | 96.7% | 146 / 400 | 373 / 92 | 2M | 2M |
| Q4 2024 | 1,046 | 53M | 96.5% | 134 / 430 | 329 / 101 | 3M | 4M |
| Q3 2024 | 1,027 | 54M | 97.6% | 122 / 393 | 350 / 88 | 6M | 3M |
| Q2 2024 | 1,002 | 55M | 99.7% | 119 / 419 | 288 / 44 | 2M | 5M |
| Q1 2024 | 933 | 57M | 100.0% | 137 / 322 | 316 / 59 | 4M | 2M |
| Q4 2023 | 862 | 56M | 100.0% | 155 / 301 | 264 / 50 | 5M | 2M |
| Q3 2023 | 766 | 53M | 96.2% | 77 / 272 | 271 / 49 | 2M | 3M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of TDG | Value | % of fund | As of |
|---|---|---|---|---|---|
| American Funds Fundamental Investors | 2,774,272 | 5.02% | $3.70B | 2.04% | Jun 30, 2026 |
| Growth Fund of America | 2,530,271 | 4.58% | $3.18B | 0.88% | May 31, 2026 |
| Vanguard Total Stock Market Index Fund | 1,775,563 | 3.21% | $2.37B | 0.10% | Jun 30, 2026 |
| AMCAP Fund | 1,766,968 | 3.20% | $2.22B | 2.29% | May 31, 2026 |
| Vanguard 500 Index Fund | 1,449,288 | 2.62% | $1.93B | 0.12% | Jun 30, 2026 |
| American Balanced Fund | 1,447,133 | 2.62% | $1.93B | 0.67% | Jun 30, 2026 |
| Vanguard Mid-Cap Index Fund | 1,211,979 | 2.19% | $1.61B | 0.72% | Jun 30, 2026 |
| MidCap Fund | 944,828 | 1.71% | $1.19B | 5.13% | Jul 31, 2026 |
| iShares Core S&P 500 ETF | 770,042 | 1.39% | $1.03B | 0.12% | Jun 30, 2026 |
| Fidelity 500 Index Fund | 722,699 | 1.31% | $909.39M | 0.11% | May 31, 2026 |
| Growth Fund | 651,981 | 1.18% | $868.46M | 1.52% | Jun 30, 2026 |
| Capital World Growth & Income Fund | 648,402 | 1.17% | $815.90M | 0.51% | May 31, 2026 |
| Vanguard Growth Index Fund | 632,242 | 1.14% | $842.17M | 0.22% | Jun 30, 2026 |
| iShares U.S. Aerospace & Defense ETF | 497,195 | 0.90% | $662.28M | 4.59% | Jun 30, 2026 |
| New Perspective Fund | 489,326 | 0.89% | $651.80M | 0.38% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Michael Lisman | President & CEO, Director | 5,213 | 0.01% | Feb 9, 2026 |
| Joel Reiss | Co-Chief Operating Officer | 3,600 | 0.01% | Sep 16, 2026 |
| Patrick Joseph Murphy | Co-Chief Operating Officer | 2,515 | 0.00% | Feb 25, 2026 |
| Sarah Wynne | Chief Financial Officer | 4,904 | 0.01% | Feb 6, 2026 |
| Armani Vadiee | GC, CCO, Secretary | – | – | Nov 6, 2025 |
| Jessica L. Warren | GC, CCO, Secretary | 1,065 | 0.00% | May 13, 2025 |
| Robert J. Small | Director | 500,204 | 0.90% | Sep 22, 2026 |
| David Barr | Director | 32,225 | 0.06% | Sep 21, 2026 |
| Sean P. Hennessy | Director | 33,836 | 0.06% | Sep 21, 2026 |
| Michael Graff | Director | 13,813 | 0.02% | Sep 21, 2026 |
| Irina Igorevna Krasik | Director | 13 | 0.00% | Sep 21, 2026 |
| Peter Palmer | Director | 4,064 | 0.01% | Sep 21, 2026 |
| Jane M. Cronin | Director | 734 | 0.00% | Sep 21, 2026 |
| Gary E. McCullough | Director | 993 | 0.00% | Sep 21, 2026 |
| Michele Santana | Director | 805 | 0.00% | Sep 21, 2026 |
| W. Nicholas Howley | Director | 30,049 | 0.05% | Sep 21, 2026 |
| Kevin M. Stein | Director | 27,620 | 0.05% | Feb 3, 2026 |
| III Jorge L. Valladares | Director | 11,085 | 0.02% | May 14, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Robert J. Small Director | Sep 18, 2026 | Other | +0 | – | – | 5,677 |
| Robert J. Small Director | Sep 18, 2026 | Award | +52 | $1085.00 | $56.42K | 5,677 |
| Michael Graff Director | Sep 18, 2026 | Award | +34 | $1085.00 | $36.89K | 1,717 |
| Sean P. Hennessy Director | Sep 18, 2026 | Award | +46 | $1085.00 | $49.91K | 33,836 |
| David Barr Director | Sep 18, 2026 | Award | +46 | $1085.00 | $49.91K | 32,225 |
| Irina Igorevna Krasik Director | Sep 18, 2026 | Award | +13 | $1085.00 | $14.11K | 13 |
| Gary E. McCullough Director | Sep 18, 2026 | Award | +41 | $1085.00 | $44.49K | 993 |
| Michele Santana Director | Sep 18, 2026 | Award | +34 | $1085.00 | $36.89K | 805 |
| W. Nicholas Howley Director | Sep 18, 2026 | Award | +126 | $1085.00 | $136.71K | 239 |
| Peter Palmer Director | Sep 18, 2026 | Award | +34 | $1085.00 | $36.89K | 4,064 |
| Jane M. Cronin Director | Sep 18, 2026 | Award | +34 | $1085.00 | $36.89K | 734 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −20 | $1119.00 | $22.38K | 3,600 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −20 | $1113.37 | $22.27K | 3,620 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −30 | $1112.38 | $33.37K | 3,640 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −30 | $1108.34 | $33.25K | 3,670 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −40 | $1106.69 | $44.27K | 3,700 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −5 | $1105.28 | $5.53K | 3,740 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −125 | $1104.58 | $138.07K | 3,745 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −210 | $1103.44 | $231.72K | 3,870 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −274 | $1102.49 | $302.08K | 4,080 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −166 | $1101.52 | $182.85K | 4,354 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −60 | $1100.41 | $66.02K | 4,520 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −90 | $1099.14 | $98.92K | 4,580 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −150 | $1098.41 | $164.76K | 4,670 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −294 | $1097.26 | $322.59K | 4,820 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −196 | $1096.17 | $214.85K | 5,114 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −225 | $1095.11 | $246.40K | 5,310 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −383 | $1094.06 | $419.02K | 5,535 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −282 | $1093.10 | $308.25K | 5,918 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −170 | $1092.13 | $185.66K | 6,200 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −100 | $1091.00 | $109.10K | 6,370 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −70 | $1090.06 | $76.30K | 6,470 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −10 | $1088.06 | $10.88K | 6,540 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −120 | $1087.49 | $130.50K | 6,550 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −110 | $1086.27 | $119.49K | 6,670 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −240 | $1084.87 | $260.37K | 6,780 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −170 | $1083.67 | $184.22K | 7,020 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Sale(10b5-1 plan) | −310 | $1082.96 | $335.72K | 7,190 |
| Joel Reiss Co-Chief Operating Officer | Sep 15, 2026 | Option exercise | +3,900 | $284.97 | $1.11M | 7,500 |
| W. Nicholas Howley Director | Aug 18, 2026 | Option exercise | +10,132 | $66.47 | $673.47K | 31,680 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −204 | $1225.60 | $250.02K | 31,476 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −70 | $1227.62 | $85.93K | 31,406 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −290 | $1229.09 | $356.44K | 31,116 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −570 | $1230.02 | $701.11K | 30,546 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −830 | $1231.12 | $1.02M | 29,716 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −190 | $1241.14 | $235.82K | 21,548 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −1,313 | $1240.42 | $1.63M | 21,738 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −3,980 | $1239.17 | $4.93M | 23,051 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −520 | $1238.08 | $643.80K | 27,031 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −250 | $1236.89 | $309.22K | 27,551 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −140 | $1236.12 | $173.06K | 27,801 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −270 | $1234.69 | $333.37K | 27,941 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −450 | $1233.30 | $554.99K | 28,211 |
| W. Nicholas Howley Director | Aug 18, 2026 | Sale(10b5-1 plan) | −1,055 | $1232.01 | $1.30M | 28,661 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −20 | $1250.82 | $25.02K | 3,710 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −60 | $1248.26 | $74.90K | 3,730 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −48 | $1247.31 | $59.87K | 3,790 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −37 | $1245.90 | $46.10K | 3,838 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −671 | $1236.80 | $829.89K | 5,729 |
| Joel Reiss Co-Chief Operating Officer | Aug 17, 2026 | Sale(10b5-1 plan) | −499 | $1237.87 | $617.70K | 5,230 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Reiss Joel Officer | Sep 15, 2026 | 8,000 | $8.89M | Sep 15, 2026 | Exercise of Stock Options |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Aug 7, 2026 | 37,690 | $47.57M | Aug 7, 2026 | Exercise of Stock Options |
| W. Nicholas Howley Officer | Jun 18, 2026 | 30,396 | $40.11M | Jun 18, 2026 | Stock Option Exercise |
| Reiss Joel Officer | Jun 15, 2026 | 11,700 | $14.70M | Jun 15, 2026 | Exercise of Stock Options |
| W. Nicholas Howley Officer | Feb 18, 2026 | 40,564 | $53.04M | Feb 18, 2026 | Stock Option Exercise |
| Reiss Joel Officer | Feb 17, 2026 | 15,600 | $20.07M | Feb 17, 2026 | Exercise of Stock Options |
| J. Murphy Patrick Officer | Feb 2, 2026 | 1,160 | $1.66M | Feb 2, 2026 | Exercise of Stock Options |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Feb 2, 2026 | 48,000 | $68.52M | Feb 2, 2026 | Exercise of Stock Options |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Jan 14, 2026 | 7,627 | $10.54M | Jan 14, 2026 | Exercise of Stock Options |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Jan 8, 2026 | 17,373 | $24.07M | Jan 8, 2026 | Exercise of Stock Options |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Jan 5, 2026 | 25,000 | $33.96M | Jan 5, 2026 | Exercise of Stock Options |
| J. Murphy Patrick Officer | Jan 2, 2026 | 290 | $385.66K | Jan 2, 2026 | Exercise of Stock Options |
| Small Robert Director | Dec 10, 2025 | 4,700 | $6.06M | Dec 10, 2025 | Exercise of options under a registered plan |
| Partners LLC Stockbridge May be deemed affiliate | Dec 9, 2025 | 100,000 | $134.72M | Dec 9, 2025 | Open market purchases |
| Fortuna Trust U/T/A Dtd 06/01/2018 The Director | Dec 4, 2025 | 17,526 | $23.44M | Dec 4, 2025 | Exercise of Stock Options |