APH Institutional Ownership & Shareholders
AMPHENOL CORP-CL A (APH) is currently held by 2,338 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $198.39B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of APH tracked by InsiderSet, reporting ownership valued at approximately $17.85B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $8.03B, representing an estimated loss of -55.02% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed APH value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Fmr Llc, and several other long-term asset managers with concentrated positions in AMPHENOL CORP-CL A (APH).
This page ranks the largest institutional APH shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
2,338
Total Reported Value
$198.39B
Largest Holder
Blackrock, Inc.
Largest Position
$17.85B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
30
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.27% | 101,252,038 | $17,852,759,340 | $8,029,286,613 | -$9,823,472,727 | -55.02% | |
| Vanguard Capital Management Llc | 0.30% | 80,347,208 | $14,166,819,714 | $6,371,533,594 | -$7,795,286,120 | -55.02% | |
| Fmr Llc | 0.54% | 70,569,005 | $12,442,726,993 | $5,596,122,097 | -$6,846,604,897 | -55.02% | |
| State Street Corp | 0.31% | 59,492,948 | $10,504,081,210 | $4,717,790,776 | -$5,786,290,434 | -55.09% | |
| Capital International Investors | 1.57% | 43,036,258 | $7,586,843,857 | $3,412,775,259 | -$4,174,068,598 | -55.02% | |
| Jpmorgan Chase & Co | 0.38% | 39,198,712 | $6,523,449,917 | $3,108,457,862 | -$3,414,992,055 | -52.35% | |
| Vanguard Portfolio Management Llc | 0.28% | 35,688,783 | $6,292,646,219 | $2,830,120,492 | -$3,462,525,727 | -55.02% | |
| Price T Rowe Associates Inc | 0.56% | 32,011,336 | $5,644,239,000 | $2,538,498,945 | -$3,105,740,055 | -55.02% | |
| Geode Capital Management, Llc | 0.29% | 31,068,834 | $5,468,287,535 | $2,463,758,536 | -$3,004,528,999 | -54.94% | |
| Capital Research Global Investors | 0.73% | 29,487,845 | $5,198,251,779 | $2,338,386,109 | -$2,859,865,671 | -55.02% | |
| Morgan Stanley | 0.19% | 20,579,230 | $3,628,530,244 | $1,631,932,939 | -$1,996,597,305 | -55.02% | |
| Norges Bank | 0.34% | 19,193,869 | $3,384,262,982 | $1,522,073,812 | -$1,862,189,170 | -55.02% | |
| Wellington Management Group Llp | 0.50% | 16,579,919 | $2,923,371,319 | $1,314,787,577 | -$1,608,583,742 | -55.02% | |
| Bank Of America Corp | 0.18% | 16,201,231 | $2,856,601,134 | $1,284,757,618 | -$1,571,843,516 | -55.02% | |
| Nuveen, Llc | 0.63% | 15,066,304 | $2,656,490,618 | $1,194,757,907 | -$1,461,732,711 | -55.02% | |
| Bank Of New York Mellon Corp | 0.42% | 14,572,023 | $2,569,339,225 | $1,155,561,424 | -$1,413,777,801 | -55.02% | |
| Northern Trust Corp | 0.28% | 13,455,160 | $2,372,413,812 | $1,066,994,188 | -$1,305,419,624 | -55.02% | |
| Arrowstreet Capital, Limited Partnership | 0.93% | 11,886,105 | $2,095,758,034 | $942,568,127 | -$1,153,189,908 | -55.02% | |
| Massachusetts Financial Services Co | 0.61% | 10,522,112 | $1,932,479,193 | $834,403,482 | -$1,098,075,711 | -56.82% | |
| Goldman Sachs Group Inc | 0.20% | 10,766,878 | $1,898,415,864 | $853,813,425 | -$1,044,602,439 | -55.02% | |
| Royal Bank Of Canada | 0.29% | 9,773,658 | $1,723,293,000 | $775,051,079 | -$948,241,921 | -55.02% | |
| Jennison Associates Llc | 0.98% | 9,223,778 | $1,626,336,465 | $731,445,595 | -$894,890,870 | -55.02% | |
| Invesco Ltd. | 0.12% | 8,278,359 | $1,459,640,228 | $656,473,869 | -$803,166,359 | -55.02% | |
| Legal & General Group Plc | 0.29% | 7,829,563 | $1,380,508,554 | $620,884,346 | -$759,624,208 | -55.02% | |
| Charles Schwab Investment Management Inc | 0.17% | 7,441,815 | $1,312,140,821 | $590,135,930 | -$722,004,892 | -55.02% | |
| Vanguard Fiduciary Trust Co | 0.27% | 7,068,807 | $1,246,372,050 | $560,556,395 | -$685,815,655 | -55.02% | |
| Wells Fargo & Company/Mn | 0.22% | 7,019,730 | $1,237,718,814 | $556,664,589 | -$681,054,225 | -55.02% | |
| Deutsche Bank Ag\ | 0.35% | 6,911,994 | $1,218,722,781 | $548,121,124 | -$670,601,657 | -55.02% | |
| American Century Companies Inc | 0.54% | 6,877,221 | $1,212,591,607 | $545,363,625 | -$667,227,982 | -55.02% | |
| Janus Henderson Group Plc | 0.59% | 9,458,488 | $1,195,087,777 | $750,058,098 | -$445,029,679 | -37.24% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.24% | 9,287,216 | $1,173,439,741 | $736,476,229 | -$436,963,512 | -37.24% | |
| Victory Capital Management Inc | 0.62% | 6,221,795 | $1,097,035,295 | $493,388,344 | -$603,646,952 | -55.03% | |
| Ameriprise Financial Inc | 0.21% | 5,851,925 | $1,031,740,663 | $464,057,653 | -$567,683,011 | -55.02% | |
| Alkeon Capital Management Llc | 3.90% | 5,731,348 | $1,010,551,279 | $454,495,896 | -$556,055,383 | -55.02% | |
| Ubs Group Ag | 0.16% | 5,709,685 | $1,006,731,659 | $452,778,021 | -$553,953,639 | -55.02% | |
| Dimensional Fund Advisors Lp | 0.16% | 5,136,379 | $905,352,237 | $407,314,855 | -$498,037,382 | -55.01% | |
| Neuberger Berman Group Llc | 0.67% | 6,696,732 | $904,996,401 | $531,050,848 | -$373,945,553 | -41.32% | |
| Egerton Capital UK | John Armitage | 9.19% | 10,708,713 | $902,744,506 | $849,200,941 | -$53,543,565 | -5.93% |
| Sg Americas Securities, Llc | 0.52% | 5,117,713 | $902,355,000 | $405,834,641 | -$496,520,359 | -55.02% | |
| Envestnet Asset Management Inc | 0.21% | 5,108,142 | $900,665,928 | $405,075,661 | -$495,590,267 | -55.02% | |
| Swedbank Ab | 0.72% | 10,008,358 | $843,704,578 | $793,662,789 | -$50,041,789 | -5.93% | |
| Flossbach Von Storch Se | 4.05% | 9,455,421 | $797,091,990 | $749,814,885 | -$47,277,105 | -5.93% | |
| Aqr Capital Management Llc | 0.27% | 4,495,090 | $774,504,041 | $356,460,637 | -$418,043,404 | -53.98% | |
| Alliancebernstein L.P. | 0.25% | 6,066,558 | $766,509,604 | $481,078,049 | -$285,431,555 | -37.24% | |
| Barclays Plc | 0.24% | 4,273,766 | $753,550,421 | $338,909,644 | -$414,640,777 | -55.02% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.38% | 7,900,956 | $666,050,591 | $626,545,811 | -$39,504,780 | -5.93% | |
| Dz Bank Ag Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main | 0.52% | 3,765,206 | $663,881,094 | $298,580,836 | -$365,300,258 | -55.02% | |
| Stifel Financial Corp | 0.55% | 3,763,474 | $663,578,981 | $298,443,488 | -$365,135,493 | -55.03% | |
| Swiss National Bank | 0.32% | 3,467,500 | $611,389,600 | $274,972,750 | -$336,416,850 | -55.02% | |
| National Pension Service | 0.38% | 3,378,080 | $595,623,066 | $267,881,744 | -$327,741,322 | -55.02% |
Frequently asked questions about APH
Who are the largest institutional holders of APH?
The largest institutional holders of APH reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, Fmr Llc, State Street Corp, and Capital International Investors. InsiderSet ranks institutional holders by their latest reported APH position.
What is APH institutional ownership?
This page tracks APH positions reported by institutional investment managers through SEC Form 13F. AMPHENOL CORP-CL A (APH) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own APH?
InsiderSet currently tracks 2,338 institutional managers reporting APH holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of APH shareholders.
How much APH stock do institutions own?
Institutional investment managers disclosed approximately $198.39B in APH holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was APH institutional ownership last updated?
The latest APH institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional APH holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its APH position after the reporting date.
Are institutions buying or selling APH?
Institutional buying and selling can be analyzed by comparing APH positions across consecutive 13F reporting periods. InsiderSet's APH Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View APH ownership changes.
How has APH institutional ownership changed over time?
InsiderSet tracks APH institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.