AMPHENOL CORP (APH)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
2,237
Reporting holders
$198.6B
Reported value
90.7%
Of shares outstanding
1.2%
Held as options
+207
Holder change
Institutions report 1,118,879,891 shares against 1,232,983,457 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.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $17.9B | 101,252,038 | 0.27% | 8q | -0.7%-$125.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | $14.2B | 80,347,208 | 0.30% | 2q | +0.6%+$83.2M |
| FMR LLC | $12.4B | 70,569,005 | 0.54% | 31q | -11.2%-$1.6B |
| STATE STREET CORP | $10.5B | 59,492,948 | 0.31% | 31q | +3.7%+$370.2M |
| Capital International Investors | $7.6B | 43,036,258 | 1.57% | 26q | +21.8%+$1.4B |
| JPMORGAN CHASE & CO | $6.5B | 39,198,712 | 0.36% | 31q | -20.4%-$1.7B |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $6.3B | 35,688,783 | 0.28% | 2q | HELD |
| GEODE CAPITAL MANAGEMENT, LLC | $5.5B | 31,068,834 | 0.29% | 31q | -0.7%-$40.0M |
| Capital Research Global Investors | $5.2B | 29,487,845 | 0.73% | 31q | +10.7%+$503.7M |
| MORGAN STANLEY | $3.6B | 20,579,230 | 0.19% | 35q | +17.5%+$540.7M |
| NORGES BANK | $3.4B | 19,193,869 | 0.34% | 32q | -15.0%-$597.9M |
| WELLINGTON MANAGEMENT GROUP LLP | $2.9B | 16,579,919 | 0.50% | 31q | +10.5%+$278.3M |
| BANK OF AMERICA CORP /DE/ | $2.9B | 16,201,231 | 0.18% | 31q | -21.6%-$788.9M |
| Nuveen, LLC | $2.7B | 15,066,304 | 0.63% | 6q | +14.8%+$342.7M |
| Bank of New York Mellon Corp | $2.6B | 14,572,023 | 0.42% | 31q | -10.7%-$306.8M |
| NORTHERN TRUST CORP | $2.4B | 13,455,160 | 0.28% | 31q | HELD |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $2.1B | 11,886,105 | 0.93% | 14q | HELD |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $1.9B | 10,522,112 | 0.61% | 31q | -24.7%-$632.2M |
| GOLDMAN SACHS GROUP INC | $1.9B | 10,766,878 | 0.16% | 31q | -5.6%-$112.8M |
| ROYAL BANK OF CANADA | $1.8B | 9,773,658 | 0.26% | 31q | HELD |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1.7B | 9,703,604 | 0.31% | 31q | +4.5%+$73.4M |
| FRANKLIN RESOURCES INC | $1.7B | 9,397,653 | 0.36% | 31q | +1.0%+$16.0M |
| JENNISON ASSOCIATES LLC | $1.6B | 9,223,778 | 0.98% | 4q | -9.9%-$178.9M |
| Jupiter Topco LLC | $1.6B | 9,077,181 | 0.65% | new | FIRST |
| Invesco Ltd. | $1.5B | 8,278,359 | 0.12% | 31q | -29.7%-$616.9M |
| Legal & General Group Plc | $1.4B | 7,829,563 | 0.29% | 31q | -3.5%-$50.2M |
| Amundi | $1.3B | 7,652,167 | 0.33% | 21q | +19.9%+$224.1M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.3B | 7,441,815 | 0.17% | 31q | +0.7%+$9.1M |
| Sixth Street Partners Management Company, L.P. | $1.3B | 7,441,815 | 0.17% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $1.2B | 7,068,807 | 0.27% | 2q | HELD |
| WELLS FARGO & COMPANY/MN | $1.2B | 7,019,730 | 0.20% | 31q | -50.3%-$1.3B |
| DEUTSCHE BANK AG\ | $1.2B | 6,911,994 | 0.35% | 34q | +7.9%+$89.2M |
| AMERICAN CENTURY COMPANIES INC | $1.2B | 6,877,221 | 0.54% | 25q | +29.6%+$276.7M |
| VICTORY CAPITAL MANAGEMENT INC | $1.1B | 6,221,795 | 0.62% | 31q | -3.4%-$38.8M |
| NEUBERGER BERMAN GROUP LLC | $1.1B | 5,989,750 | 0.71% | 31q | +1.4%+$15.0M |
| AMERIPRISE FINANCIAL INC | $1.0B | 5,851,925 | 0.21% | 31q | +51.8%+$352.0M |
| UBS Group AG | $1.0B | 5,709,685 | 0.13% | 31q | -9.4%-$105.1M |
| ALKEON CAPITAL MANAGEMENT LLC | $1.0B | 5,731,348 | 1.36% | 9q | +24.1%+$196.3M |
| FLOSSBACH VON STORCH SE | $997.4M | 5,656,967 | 4.51% | 22q | +1.6%+$15.6M |
| DIMENSIONAL FUND ADVISORS LP | $905.4M | 5,136,379 | 0.16% | 31q | +18.7%+$142.6M |
| ENVESTNET ASSET MANAGEMENT INC | $900.7M | 5,108,142 | 0.21% | 31q | -2.4%-$21.8M |
| Egerton Capital (UK) LLP | $858.1M | 4,866,688 | 8.29% | 6q | +69.5%+$351.8M |
| Swedbank AB | $843.5M | 4,784,087 | 0.73% | 13q | +47.6%+$272.2M |
| BARCLAYS PLC | $803.9M | 4,273,766 | 0.15% | 31q | -15.0%-$141.8M |
| AQR CAPITAL MANAGEMENT LLC | $774.5M | 4,495,090 | 0.27% | 31q | -20.4%-$198.9M |
| ALLIANCEBERNSTEIN L.P. | $766.5M | 6,066,558 | 0.25% | 31q | +48.9%+$251.6M |
| Sumitomo Mitsui Trust Group, Inc. | $729.9M | 4,139,732 | 0.42% | 31q | HELD |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $663.9M | 3,765,206 | 0.51% | 32q | +7.4%+$45.8M |
| STIFEL FINANCIAL CORP | $663.6M | 3,763,474 | 0.55% | 31q | +1.5%+$9.8M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $629.2M | 520,924 | 0.05% | 31q | +80.1%+$279.8M |
| Swiss National Bank | $611.4M | 3,467,500 | 0.32% | 31q | -3.5%-$22.0M |
| National Pension Service | $595.6M | 3,378,080 | 0.38% | 31q | +1.6%+$9.4M |
| JANE STREET GROUP, LLC | $566.4M | 85,754 | 0.05% | 30q | -92.2%-$6.7B |
| RAYMOND JAMES FINANCIAL INC | $563.1M | 3,193,467 | 0.15% | 7q | +2.9%+$15.6M |
| Rathbones Group PLC | $559.1M | 3,170,818 | 2.06% | 31q | +2.8%+$15.4M |
| EDGEWOOD MANAGEMENT LLC | $554.0M | 3,141,974 | 5.71% | 3q | -31.8%-$257.9M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $546.3M | 3,098,752 | 0.30% | 31q | +8.8%+$44.2M |
| PRINCIPAL FINANCIAL GROUP INC | $538.8M | 3,056,002 | 0.26% | 31q | +5.5%+$28.2M |
| LAZARD ASSET MANAGEMENT LLC | $537.3M | 3,047,437 | 0.81% | 33q | -4.1%-$23.2M |
| JONES FINANCIAL COMPANIES LLLP | $494.7M | 3,020,851 | 0.20% | 23q | +8.4%+$38.2M |
| Alecta Tjanstepension Omsesidigt | $481.8M | 2,732,400 | 2.03% | 31q | -13.9%-$78.0M |
| Vanguard Global Advisers, LLC | $467.8M | 2,653,180 | 0.22% | 2q | -1.4%-$6.6M |
| HSBC HOLDINGS PLC | $466.2M | 2,617,498 | 0.19% | 31q | +11.9%+$49.5M |
| California Public Employees Retirement System | $445.3M | 2,525,468 | 0.25% | 31q | -19.0%-$104.7M |
| BLAIR WILLIAM & CO/IL | $441.6M | 2,504,409 | 1.15% | 31q | -0.6%-$2.8M |
| Man Group plc | $437.3M | 2,480,397 | 0.70% | 31q | +28.8%+$97.8M |
| Capital World Investors | $431.3M | 2,446,080 | 0.05% | 2q | +57.4%+$157.3M |
| CANADA PENSION PLAN INVESTMENT BOARD | $423.9M | 2,404,150 | 0.23% | 31q | -11.3%-$54.2M |
| CITADEL ADVISORS LLC | $416.9M | 783,629 | 0.05% | 31q | -24.4%-$134.7M |
| Mawer Investment Management Ltd. | $415.8M | 2,358,285 | 2.83% | 31q | -40.8%-$287.1M |
| Allianz Asset Management GmbH | $409.6M | 2,640,115 | 0.37% | 40q | -0.7%-$2.9M |
| Alyeska Investment Group, L.P. | $408.7M | 2,318,178 | 1.05% | 3q | -18.3%-$91.5M |
| RHUMBLINE ADVISERS | $401.2M | 2,275,649 | 0.30% | 31q | -1.8%-$7.5M |
| VANGUARD ASSET MANAGEMENT, Ltd | $394.7M | 2,238,519 | 0.27% | 2q | +14.3%+$49.3M |
| MILLENNIUM MANAGEMENT LLC | $371.6M | 838,250 | 0.13% | 27q | -63.9%-$657.2M |
| Russell Investments Group, Ltd. | $362.0M | 2,063,491 | 0.32% | 31q | +28.6%+$80.5M |
| Winslow Capital Management, LLC | $360.5M | 2,044,422 | 1.24% | 8q | +53.9%+$126.3M |
| Local Pensions Partnership Investment Ltd | $344.2M | 1,951,700 | 7.22% | 7q | HELD |
| BANK OF MONTREAL /CAN/ | $339.8M | 1,926,941 | 0.11% | 31q | +3.4%+$11.1M |
| VOYA INVESTMENT MANAGEMENT LLC | $330.6M | 1,874,799 | 0.29% | 31q | -60.1%-$498.5M |
| FIRST TRUST ADVISORS LP | $324.9M | 1,842,807 | 0.19% | 31q | +9.1%+$27.0M |
| Bank Julius Baer & Co. Ltd, Zurich | $322.5M | 1,845,527 | 0.84% | 26q | +9.2%+$27.1M |
| USS Investment Management Ltd | $320.6M | 1,817,788 | 1.15% | 31q | +4.5%+$13.8M |
| Navera Investment Management Ltd. | $318.1M | 1,803,934 | 8.53% | 23q | +13.1%+$36.8M |
| Corient Private Wealth LP | $316.5M | 32,869,230 | 0.20% | 15q | +6119.0%+$311.4M |
| NATIONAL BANK OF CANADA /FI/ | $312.7M | 1,773,625 | 0.22% | 19q | +56.3%+$112.7M |
| CITIGROUP INC | $310.5M | 1,760,816 | 0.10% | 31q | +15.4%+$41.5M |
| LPL Financial LLC | $302.5M | 1,713,817 | 0.07% | 31q | +14.0%+$37.2M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $286.2M | 1,622,983 | 0.20% | 31q | +1.7%+$4.8M |
| BAMCO INC /NY/ | $281.8M | 1,598,059 | 0.42% | 29q | -3.7%-$10.9M |
| Maren Capital LLC | $273.6M | 1,551,888 | 12.68% | 11q | +5.0%+$13.1M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $270.7M | 1,535,059 | 0.81% | 2q | +42.5%+$80.7M |
| Qube Research & Technologies Ltd | $270.6M | 1,455,850 | 0.25% | 18q | -42.9%-$203.3M |
| CIBC Bancorp USA Inc. | $270.5M | 1,534,198 | 0.33% | 3q | -29.2%-$111.7M |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $268.6M | 1,523,241 | 0.99% | 31q | -21.8%-$75.0M |
| Cerity Partners LLC | $268.3M | 1,520,578 | 0.32% | 23q | +7.8%+$19.4M |
| Allspring Global Investments Holdings, LLC | $267.9M | 1,555,751 | 0.41% | 19q | -16.7%-$53.7M |
| Fenimore Asset Management Inc | $261.7M | 1,484,406 | 5.42% | 21q | -4.3%-$11.7M |
| Balyasny Asset Management L.P. | $258.5M | 1,455,963 | 0.32% | 13q | +7406.9%+$255.0M |
| Aberdeen Group plc | $257.2M | 1,458,476 | 0.36% | 31q | +19.4%+$41.9M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-06 | 13G/A | FMR LLCwith 1 co-filers | 5.7% |
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 |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 2,237 | $198.6B | 1,118,879,891 | 340 | 876 | 696 | 1.2% |
| Q1 2026 | 2,030 | $142.0B | 1,113,028,807 | 218 | 764 | 724 | 1.2% |
| Q4 2025 | 1,962 | $149.1B | 1,093,874,842 | 214 | 691 | 677 | 0.8% |
| Q3 2025 | 1,729 | $134.4B | 1,076,044,796 | 260 | 618 | 549 | 1.0% |
| Q2 2025 | 1,545 | $108.0B | 1,084,363,720 | 291 | 491 | 477 | 0.9% |
| Q1 2025 | 1,332 | $70.5B | 1,068,923,186 | 162 | 512 | 397 | 0.6% |
| Q4 2024 | 1,299 | $73.9B | 1,058,943,034 | 119 | 434 | 419 | 0.5% |
| Q3 2024 | 1,193 | $70.4B | 1,069,580,361 | 107 | 429 | 417 | 1.0% |
| Q2 2024 | 1,185 | $72.5B | 1,066,205,991 | 167 | 961 | 35 | 1.0% |
| Q1 2024 | 1,057 | $64.4B | 556,651,241 | 127 | 321 | 364 | 0.4% |
| Q4 2023 | 973 | $55.3B | 556,768,873 | 95 | 300 | 308 | 0.3% |
| Q3 2023 | 884 | $43.6B | 517,924,457 | 69 | 273 | 323 | 0.3% |
| Q2 2023 | 849 | $44.4B | 521,148,029 | 64 | 266 | 303 | 0.3% |
| Q1 2023 | 838 | $47.3B | 587,235,453 | 81 | 270 | 271 | 0.1% |
| Q4 2022 | 745 | $37.0B | 485,651,616 | 83 | 252 | 250 | 0.1% |
| Q3 2022 | 910 | $38.2B | 568,621,503 | 75 | 329 | 293 | 0.1% |
| Q2 2022 | 898 | $36.3B | 562,555,718 | 79 | 304 | 310 | 0.1% |
| Q1 2022 | 893 | $42.8B | 567,338,753 | 82 | 311 | 300 | 0.1% |
| Q4 2021 | 895 | $50.6B | 579,089,222 | 75 | 277 | 275 | 0.1% |
| Q3 2021 | 837 | $42.2B | 574,931,468 | 71 | 270 | 257 | 0.2% |
| Q2 2021 | 823 | $39.2B | 571,793,143 | 64 | 290 | 259 | 0.2% |
| Q1 2021 | 812 | $37.6B | 568,818,039 | 67 | 675 | 47 | 0.2% |
| Q4 2020 | 814 | $37.7B | 284,049,045 | 73 | 272 | 266 | 0.2% |
| Q3 2020 | 748 | $30.7B | 283,401,113 | 79 | 250 | 248 | 0.1% |
| Q2 2020 | 720 | $27.5B | 286,248,794 | 97 | 254 | 242 | 0.2% |
| Q1 2020 | 686 | $20.9B | 285,083,753 | 77 | 234 | 248 | 0.2% |
| Q4 2019 | 717 | $31.5B | 290,284,731 | 67 | 214 | 229 | 0.2% |
| Q3 2019 | 666 | $27.5B | 284,062,237 | 53 | 232 | 224 | 0.2% |
| Q2 2019 | 697 | $27.2B | 282,582,610 | 76 | 247 | 224 | 0.3% |
| Q1 2019 | 683 | $26.9B | 284,789,441 | 67 | 221 | 239 | 0.1% |
| Q4 2018 | 658 | $23.7B | 291,819,088 | 7 | 15 | 11 | 0.2% |