DaveManuel.com · Institutional Ownership · Who Owns It
TRANSDIGM GROUP INC (TDG)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
1,154
Reporting holders
$70.9B
Reported value
95.2%
Of shares outstanding
0.4%
Calls
0.8%
Puts
+37
Holder change
Institutions report 52,610,492 shares against 55,276,525 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Capital International Investors | $6.7B | 5,062,682 | 1.39% | 31q | -7.9%-$575.4M |
| BlackRock, Inc. | $6.5B | 4,871,505 | 0.10% | 8q | +5.9%+$360.0M |
| Capital World Investors | $5.7B | 4,274,109 | 0.67% | 31q | -8.4%-$522.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | $4.9B | 3,653,511 | 0.10% | 2q | HELD |
| Capital Research Global Investors | $4.2B | 3,119,490 | 0.58% | 31q | -0.8%-$32.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $3.4B | 2,580,994 | 0.15% | 2q | HELD |
| STATE STREET CORP | $3.4B | 2,559,096 | 0.10% | 31q | +1.7%+$56.6M |
| PRINCIPAL FINANCIAL GROUP INC | $2.3B | 1,709,129 | 1.12% | 31q | -15.1%-$405.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $1.7B | 1,286,385 | 0.09% | 31q | +0.8%+$13.2M |
| FMR LLC | $1.5B | 1,091,534 | 0.06% | 31q | -19.7%-$355.7M |
| Soroban Capital Partners LP | $1.2B | 898,197 | 2.50% | 5q | +4.9%+$55.9M |
| ALTAROCK PARTNERS LP | $1.2B | 875,755 | 27.51% | 31q | -3.7%-$44.5M |
| MORGAN STANLEY | $1.2B | 872,559 | 0.06% | 35q | -2.4%-$28.2M |
| JPMORGAN CHASE & CO | $1.1B | 835,113 | 0.06% | 31q | -7.0%-$83.2M |
| NORGES BANK | $1.0B | 781,731 | 0.10% | 32q | +1.4%+$14.0M |
| WINDACRE PARTNERSHIP LLC | $911.2M | 684,100 | 9.01% | 13q | +34.2%+$232.4M |
| UBS Group AG | $893.1M incl. $84.9M options CALL+PUT | 606,686 | 0.11% | 31q | +19.0%+$142.8M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $765.2M | 574,438 | 0.08% | 31q | -3.1%-$24.3M |
| Invesco Ltd. | $638.8M | 479,551 | 0.05% | 31q | +10.3%+$59.9M |
| NORTHERN TRUST CORP | $622.8M | 467,543 | 0.07% | 31q | +2.6%+$15.6M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $590.0M | 442,904 | 0.08% | 31q | +8.0%+$43.6M |
| Stockbridge Partners LLC | $578.5M | 434,281 | 12.17% | 31q | HELD |
| PRIMECAP MANAGEMENT CO/CA/ | $546.4M | 410,217 | 0.32% | 31q | HELD |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $522.8M | 392,447 | 0.41% | 31q | +106.4%+$269.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $471.7M | 354,105 | 0.09% | 31q | -1.5%-$7.4M |
| Select Equity Group, L.P. | $470.5M | 353,230 | 2.33% | 2q | +636.8%+$406.7M |
| GOLDMAN SACHS GROUP INC | $466.1M | 349,906 | 0.04% | 31q | +24.0%+$90.3M |
| Bank of New York Mellon Corp | $424.6M | 318,749 | 0.07% | 31q | -0.6%-$2.6M |
| VANGUARD FIDUCIARY TRUST CO | $423.3M | 317,808 | 0.09% | 2q | HELD |
| BANK OF AMERICA CORP /DE/ | $381.4M | 286,324 | 0.02% | 31q | -3.3%-$12.9M |
| EDGEWOOD MANAGEMENT LLC | $370.6M | 278,240 | 3.82% | 7q | -54.9%-$451.9M |
| Legal & General Group Plc | $356.0M | 267,276 | 0.07% | 31q | -5.4%-$20.4M |
| CIBC Bancorp USA Inc. | $310.6M | 233,167 | 0.38% | 3q | +15.7%+$42.2M |
| Temasek Holdings (Private) Ltd | $303.9M incl. $32.9M options PUT | 203,419 | 0.82% | 3q | -7.1%-$23.1M |
| JANE STREET GROUP, LLC | $256.3M incl. $252.3M options CALL+PUT | 2,993 | 0.02% | 31q | +115.5%+$137.3M |
| Heard Capital LLC | $248.1M | 186,289 | 10.62% | 27q | +4.3%+$10.2M |
| WELLS FARGO & COMPANY/MN | $244.7M | 183,673 | 0.04% | 31q | +22.5%+$44.9M |
| Sumitomo Mitsui Trust Group, Inc. | $241.6M | 181,405 | 0.14% | 31q | +0.7%+$1.6M |
| CITADEL ADVISORS LLC | $233.9M incl. $107.2M options CALL+PUT | 95,123 | 0.03% | 31q | +5.4%+$11.9M |
| DEUTSCHE BANK AG\ | $232.9M | 174,808 | 0.07% | 34q | -9.3%-$23.8M |
| DIMENSIONAL FUND ADVISORS LP | $231.5M | 173,772 | 0.04% | 31q | +7.5%+$16.2M |
| Vulcan Value Partners, LLC | $227.0M | 170,429 | 6.91% | 25q | -7.5%-$18.4M |
| Nuveen, LLC | $222.9M | 167,347 | 0.05% | 6q | +19.9%+$36.9M |
| BLAIR WILLIAM & CO/IL | $219.7M | 164,960 | 0.57% | 27q | -0.8%-$1.7M |
| Swiss National Bank | $212.2M | 159,280 | 0.11% | 31q | -3.6%-$8.0M |
| CANADA PENSION PLAN INVESTMENT BOARD | $210.9M | 158,357 | 0.12% | 31q | -21.4%-$57.4M |
| ALKEON CAPITAL MANAGEMENT LLC | $198.6M | 149,078 | 0.27% | 30q | HELD |
| Mitsubishi UFJ Asset Management Co., Ltd. | $193.0M | 144,880 | 0.11% | 31q | +10.3%+$18.1M |
| BANK OF MONTREAL /CAN/ | $189.4M | 142,184 | 0.06% | 31q | +18.9%+$30.1M |
| Veritas Asset Management LLP | $183.8M | 137,969 | 3.31% | 3q | +3.0%+$5.3M |
| National Pension Service | $180.1M | 135,233 | 0.12% | 31q | +3.8%+$6.6M |
| CITIGROUP INC | $173.1M | 129,926 | 0.06% | 31q | -9.9%-$19.0M |
| IMC-Chicago, LLC | $165.3M incl. $160.9M options CALL+PUT | 3,323 | 0.04% | 5q | HELD |
| FRANKLIN RESOURCES INC | $163.4M | 122,664 | 0.04% | 25q | -14.5%-$27.8M |
| Vanguard Global Advisers, LLC | $160.3M | 120,366 | 0.07% | 2q | -2.2%-$3.7M |
| Skye Global Management LP | $159.8M | 120,000 | 3.11% | 14q | +1.7%+$2.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $151.0M incl. $121.1M options CALL+PUT | 22,492 | 0.01% | 31q | +155.5%+$91.9M |
| DF DENT & CO INC | $149.1M | 111,941 | 2.83% | 31q | -8.8%-$14.4M |
| BRISTOL JOHN W & CO INC /NY/ | $144.5M | 108,456 | 2.14% | 25q | -1.0%-$1.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | $142.4M | 106,903 | 0.10% | 2q | +12.8%+$16.2M |
| Triple Frond Partners LLC | $141.9M | 106,544 | 12.67% | 31q | HELD |
| AMERIPRISE FINANCIAL INC | $140.4M | 105,396 | 0.03% | 31q | -26.7%-$51.3M |
| Douglass Winthrop Advisors, LLC | $140.3M | 105,306 | 2.42% | 23q | +2.4%+$3.3M |
| Amundi | $136.9M | 102,747 | 0.03% | 21q | +8.6%+$10.8M |
| California Public Employees Retirement System | $127.2M | 95,459 | 0.07% | 31q | +2.7%+$3.4M |
| KING LUTHER CAPITAL MANAGEMENT CORP | $125.5M | 94,221 | 0.51% | 31q | -13.1%-$18.9M |
| RHUMBLINE ADVISERS | $123.3M | 92,555 | 0.09% | 31q | -5.4%-$7.1M |
| HSBC HOLDINGS PLC | $121.4M | 91,325 | 0.05% | 31q | +10.0%+$11.0M |
| SANDS CAPITAL MANAGEMENT, LLC | $119.4M | 89,669 | 0.44% | 31q | -5.0%-$6.2M |
| BNP PARIBAS FINANCIAL MARKETS | $117.3M incl. $2.7M options CALL+PUT | 86,048 | 0.04% | 31q | +5.7%+$6.4M |
| PNC Financial Services Group, Inc. | $116.7M | 87,645 | 0.06% | 31q | +0.7%+$828.5K |
| Atalan Capital Partners, LP | $116.6M | 87,530 | 7.15% | 25q | +3.6%+$4.0M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $112.4M | 84,346 | 0.10% | 31q | -9.5%-$11.9M |
| Douglas Lane & Associates, LLC | $110.7M | 83,069 | 1.50% | 31q | +1.1%+$1.2M |
| Russell Investments Group, Ltd. | $110.3M | 82,776 | 0.10% | 31q | -1.5%-$1.7M |
| US BANCORP \DE\ | $106.2M | 79,707 | 0.12% | 31q | -14.6%-$18.1M |
| Third Point LLC | $105.2M | 79,000 | 2.25% | 2q | +216.0%+$71.9M |
| BAMCO INC /NY/ | $104.6M | 78,501 | 0.16% | 31q | HELD |
| RAYMOND JAMES FINANCIAL INC | $104.4M | 78,373 | 0.03% | 7q | HELD |
| ARGENT CAPITAL MANAGEMENT LLC | $88.7M | 66,590 | 2.80% | 10q | -11.5%-$11.6M |
| Corient Private Wealth LP | $85.7M | 64,302 | 0.12% | 15q | -5.7%-$5.2M |
| BARCLAYS PLC | $85.6M | 64,282 | 0.02% | 31q | -40.1%-$57.4M |
| CAT ROCK CAPITAL MANAGEMENT LP | $84.4M | 63,339 | 19.57% | 6q | +37.4%+$23.0M |
| ENVESTNET ASSET MANAGEMENT INC | $81.9M | 61,513 | 0.02% | 31q | -7.5%-$6.7M |
| NEW YORK STATE COMMON RETIREMENT FUND | $79.9M | 59,988 | 0.10% | 31q | -4.8%-$4.0M |
| Focus Partners Wealth | $75.4M | 56,568 | 0.08% | 11q | +3.1%+$2.3M |
| East Coast Asset Management, LLC. | $70.9M | 53,209 | 11.36% | 26q | +0.7%+$510.2K |
| Chicago Capital, LLC | $70.7M | 53,084 | 1.70% | 30q | HELD |
| ROYAL BANK OF CANADA | $70.7M | 53,052 | 0.01% | 31q | +6.8%+$4.5M |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $67.7M | 50,812 | 1.27% | 6q | +15.9%+$9.3M |
| ALLIANCEBERNSTEIN L.P. | $67.5M | 58,222 | 0.02% | 31q | +4.2%+$2.8M |
| Hudson Way Capital Management LLC | $67.1M | 50,410 | 5.99% | 17q | +2.1%+$1.4M |
| Squarepoint Ops LLC | $67.0M incl. $35.7M options CALL+PUT | 23,504 | 0.07% | 26q | -70.5%-$159.8M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $66.5M | 49,894 | 0.09% | 6q | -1.4%-$932.4K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $66.2M | 49,697 | 0.05% | 27q | HELD |
| Holocene Advisors, LP | $65.5M | 49,202 | 0.15% | 9q | +104.2%+$33.4M |
| DANSKE BANK A/S | $65.2M | 48,972 | 0.13% | 10q | -1.0%-$663.4K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $64.8M | 48,683 | 0.11% | 31q | -1.8%-$1.2M |
| AVIVA PLC | $63.7M | 47,791 | 0.09% | 31q | +2.0%+$1.3M |
| PFA Pension, Forsikringsaktieselskab | $63.5M | 47,672 | 0.16% | 3q | -30.2%-$27.5M |
Showing the largest 100 of 1,154 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-29 | 2026-09-28 | Material agreement entered | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-18 | Howley W Nicholas | Director | Sold | 10,132 | $13.4M ×22 |
| 2026-06-18 | Howley W Nicholas | Director | Sold | 10,132 | $13.4M ×22 |
| 2026-06-18 | Howley W Nicholas | Director | Sold | 10,132 | $13.4M ×22 |
| 2026-08-18 | Howley W Nicholas | Director | Sold | 10,132 | $12.5M ×14 |
| 2026-07-20 | Howley W Nicholas | Director | Sold | 10,132 | $12.3M ×12 |
| 2026-05-18 | Howley W Nicholas | Director | Sold | 10,132 | $12.0M ×25 |
| 2026-06-15 | Reiss Joel | Co-Chief Operating Officer | Sold | 3,900 | $5.0M ×18 |
| 2026-08-17 | Reiss Joel | Co-Chief Operating Officer | Sold | 3,900 | $4.8M ×19 |
| 2026-10-15 | Reiss Joel | Co-Chief Operating Officer | Sold | 4,100 | $4.6M ×21 |
| 2026-05-15 | Reiss Joel | Co-Chief Operating Officer | Sold | 3,900 | $4.5M ×27 |
| 2026-09-15 | Reiss Joel | Co-Chief Operating Officer | Sold | 3,900 | $4.3M ×27 |
| 2026-07-15 | Reiss Joel | Co-Chief Operating Officer | Sold | 3,486 | $4.2M ×29 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 349 | $1.5B | 1,358,718 | 33 | 114 | 107 | 1.8% |
| Q2 2026 | 1,154 | $70.9B | 52,610,492 | 133 | 426 | 358 | 1.2% |
| Q1 2026 | 1,117 | $61.7B | 52,927,399 | 108 | 374 | 393 | 0.7% |
| Q4 2025 | 1,140 | $72.2B | 53,986,046 | 115 | 373 | 341 | 0.6% |
| Q3 2025 | 1,084 | $73.4B | 55,070,717 | 94 | 399 | 365 | 1.2% |
| Q2 2025 | 1,120 | $83.1B | 54,220,236 | 114 | 451 | 316 | 0.8% |
| Q1 2025 | 1,099 | $74.4B | 53,433,120 | 136 | 381 | 345 | 0.7% |
| Q4 2024 | 1,057 | $68.2B | 53,296,075 | 81 | 404 | 309 | 1.1% |
| Q3 2024 | 1,033 | $77.3B | 53,877,470 | 114 | 369 | 327 | 0.6% |
| Q2 2024 | 1,006 | $70.7B | 55,092,730 | 109 | 401 | 269 | 0.5% |
| Q1 2024 | 942 | $70.8B | 57,297,575 | 132 | 314 | 294 | 0.5% |
| Q4 2023 | 867 | $57.0B | 56,065,776 | 107 | 281 | 249 | 0.6% |
| Q3 2023 | 781 | $45.4B | 53,199,995 | 67 | 258 | 248 | 1.2% |
| Q2 2023 | 758 | $48.5B | 53,786,682 | 85 | 243 | 233 | 1.1% |
| Q1 2023 | 731 | $40.5B | 54,329,164 | 85 | 250 | 241 | 1.3% |
| Q4 2022 | 707 | $33.3B | 52,330,238 | 90 | 225 | 213 | 1.2% |
| Q3 2022 | 634 | $32.4B | 60,677,074 | 42 | 213 | 204 | 1.7% |
| Q2 2022 | 645 | $32.8B | 60,429,018 | 53 | 203 | 219 | 1.1% |
| Q1 2022 | 676 | $127.3B | 194,365,072 | 75 | 250 | 197 | 0.6% |
| Q4 2021 | 654 | $102.8B | 160,815,304 | 65 | 223 | 169 | 0.5% |
| Q3 2021 | 624 | $39.3B | 62,260,802 | 61 | 197 | 199 | 1.0% |
| Q2 2021 | 610 | $41.5B | 63,285,733 | 65 | 196 | 180 | 1.3% |
| Q1 2021 | 600 | $41.7B | 70,301,911 | 62 | 212 | 178 | 0.8% |
| Q4 2020 | 606 | $43.8B | 70,234,023 | 84 | 181 | 187 | 0.8% |
| Q3 2020 | 549 | $63.3B | 132,173,601 | 73 | 197 | 153 | 0.8% |
| Q2 2020 | 531 | $53.4B | 119,844,202 | 101 | 159 | 191 | 0.9% |
| Q1 2020 | 522 | $53.6B | 166,064,027 | 79 | 206 | 168 | 0.8% |
| Q4 2019 | 586 | $66.0B | 106,771,245 | 60 | 199 | 173 | 9.2% |
| Q3 2019 | 555 | $38.4B | 72,719,191 | 71 | 201 | 180 | 1.4% |
| Q2 2019 | 525 | $37.9B | 76,610,889 | 46 | 168 | 191 | 2.4% |
| Q1 2019 | 543 | $33.9B | 73,904,911 | 91 | 179 | 173 | 1.2% |
| Q4 2018 | 492 | $24.4B | 70,488,110 | 8 | 8 | 9 | 1.8% |