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Amphenol Corp

APH
Exchange
NYSE
Industry
Electronic Connectors
SEC CIK
0000820313

In the last 90 days, Amphenol Corp insiders filed 0 open-market purchases and 4 sales; 2,340 institutions reported holding it in 13F filings for Q2 2026, worth $205.1B in total; superinvestors Weitz Investment Management and Maverick Capital hold it.

13F holders, Q3 2025

Institutional positions in Amphenol Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,829
+201 vs. Q2 2025
Shares held
1.14B
−1.73M (−0.2%) vs. Q2 2025
Total value
$141.0B
+$28.5B (+25.4%) vs. Q2 2025
New holders
285
722 more added
Sold out
84
622 more reduced

20 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting APH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,829 institutions
Q1 2021: 810 institutionsQ2 2021: 821 institutionsQ3 2021: 839 institutionsQ4 2021: 892 institutionsQ1 2022: 896 institutionsQ2 2022: 898 institutionsQ3 2022: 911 institutionsQ4 2022: 951 institutionsQ1 2023: 980 institutionsQ2 2023: 983 institutionsQ3 2023: 1,010 institutionsQ4 2023: 1,085 institutionsQ1 2024: 1,157 institutionsQ2 2024: 1,298 institutionsQ3 2024: 1,295 institutionsQ4 2024: 1,407 institutionsQ1 2025: 1,427 institutionsQ2 2025: 1,648 institutionsQ3 2025: 1,829 institutionsQ4 2025: 2,059 institutionsQ1 2026: 2,136 institutionsQ2 2026: 2,340 institutions
Value heldQ3 2025: $141.0B
Q1 2021: $37.3BQ2 2021: $38.9BQ3 2021: $42.0BQ4 2021: $50.2BQ1 2022: $42.7BQ2 2022: $36.2BQ3 2022: $38.1BQ4 2022: $43.3BQ1 2023: $46.6BQ2 2023: $48.4BQ3 2023: $47.7BQ4 2023: $57.8BQ1 2024: $66.7BQ2 2024: $77.0BQ3 2024: $73.8BQ4 2024: $79.6BQ1 2025: $75.5BQ2 2025: $114.7BQ3 2025: $141.0BQ4 2025: $156.8BQ1 2026: $145.4BQ2 2026: $205.1B
Institutions holding APH and their total value by quarter
QuarterHoldersValue
Q2 20262,340$205.1B
Q1 20262,136$145.4B
Q4 20252,059$156.8B
Q3 20251,829$141.0B
Q2 20251,648$114.7B
Q1 20251,427$75.5B
Q4 20241,407$79.6B
Q3 20241,295$73.8B
Q2 20241,298$77.0B
Q1 20241,157$66.7B
Q4 20231,085$57.8B
Q3 20231,010$47.7B
Q2 2023983$48.4B
Q1 2023980$46.6B
Q4 2022951$43.3B
Q3 2022911$38.1B
Q2 2022898$36.2B
Q1 2022896$42.7B
Q4 2021892$50.2B
Q3 2021839$42.0B
Q2 2021821$38.9B
Q1 2021810$37.3B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Amphenol Corp; share changes are against Q2 2025.

Institutions holding APH in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Chilton Investment Co LLC1,457,640$180.4M3.68%+6,216+0.4%Added
USS Investment Management Ltd1,427,865$176.7M0.85%+570,203+66.5%Added
Polar Capital Holdings Plc1,418,724$175.6M0.85%−645,875−31.3%Reduced
Davis R M Inc1,406,726$174.1M3.04%−67,516−4.6%Reduced
Macquarie Group Ltd1,405,604$173.9M0.20%+1,028,175+272.4%Added
Citigroup Inc1,395,634$172.7M0.12%−316,419−18.5%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)1,390,269$172.0M0.40%+38,369+2.8%Added
Carmignac Gestion1,407,249$166.8M2.49%−539,251−27.7%Reduced
Prudential Financial Inc1,344,177$166.3M0.20%+411,959+44.2%Added
Nissay Asset Management Corp1,341,896$166.1M0.92%+591,345+78.8%Added
Schroder Investment Management Group1,336,600$165.4M0.13%+39,351+3.0%Added
Snyder Capital Management L P1,323,099$163.7M3.10%−328,681−19.9%Reduced
APG Asset Management N.V.1,508,857$158.9M0.45%−16,008−1.0%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH1,280,316$158.4M0.26%−32,364−2.5%Reduced
Balyasny Asset Management LLC1,274,494$157.7M0.32%+140,041+12.3%Added
Harding Loevner LP1,251,914$154.9M1.14%−191,563−13.3%Reduced
Tandem Investment Advisors, Inc.1,250,108$154.7M5.28%−45,315−3.5%Reduced
The PNC Financial Services Group, Inc.1,240,306$153.5M0.09%−12,376−1.0%Reduced
Danske Bank A/S1,237,093$153.1M0.38%−248,512−16.7%Reduced
Man Group plc1,223,896$151.5M0.29%+153,991+14.4%Added
First Trust Advisors LP1,213,364$150.2M0.11%−17,979−1.5%Reduced
BNP Paribas Arbitrage, SA1,162,656$143.9M0.11%+373,522+47.3%Added
Russell Investments Group, Ltd.1,153,302$142.4M0.16%+131,470+12.9%Added
Baird Financial Group, Inc.1,139,500$141.0M0.23%+86,968+8.3%Added
Impax Asset Management Group plc1,116,115$138.1M0.81%−343,020−23.5%Reduced
Marshall Wace, LLP1,107,871$137.1M0.15%−92,129−7.7%Reduced
State Board of Administration of Florida Retirement System1,107,672$137.1M0.24%−104,596−8.6%Reduced
Johnson Investment Counsel Inc1,100,064$136.1M1.14%−29,446−2.6%Reduced
Close Asset Management Ltd1,095,518$135.6M3.01%+1,091,735+28,859.0%Added
KBC Group NV1,094,095$135.4M0.32%+555,925+103.3%Added
Great West Life Assurance Co1,114,721$134.9M0.19%+24,921+2.3%Added
Adage Capital Partners GP, L.L.C.1,087,720$134.6M0.21%−12,700−1.2%Reduced
Storebrand Asset Management AS1,087,504$134.6M0.36%+667,002+158.6%Added
Port Capital LLC1,078,749$133.5M5.56%−93,018−7.9%Reduced
DekaBank Deutsche Girozentrale1,086,445$130.5M0.22%00.0%Unchanged
LPL Financial LLC1,053,149$130.3M0.04%+128,195+13.9%Added
Manufacturers Life Insurance Company, The1,033,934$127.9M0.11%−84,736−7.6%Reduced
National Bank of Canada1,022,573$126.5M0.14%−31,964−3.0%Reduced
Bradley Foster & Sargent Inc1,018,352$126.0M1.86%−12,345−1.2%Reduced
Fiera Capital Corp1,017,080$125.9M0.41%−8,940−0.9%Reduced
Allspring Global Investments Holdings, LLC1,003,248$125.1M0.20%−73,026−6.8%Reduced
Standard Life Aberdeen plc1,017,280$123.1M0.19%+34,450+3.5%Added
Canada Pension Plan Investment Board993,603$123.0M0.09%+46,257+4.9%Added
Cookson Peirce & Co Inc976,281$120.8M4.95%−29,969−3.0%Reduced
Congress Asset Management Co968,173$119.8M0.80%+679,617+235.5%Added
Aviva PLC939,306$116.2M0.21%+81,665+9.5%Added
New York State Teachers Retirement System930,258$115.1M0.22%+33,878+3.8%Added
Select Equity Group, L.P.930,118$115.1M0.49%+253,232+37.4%Added
Keybank National Association905,577$112.1M0.39%−79,174−8.0%Reduced
Susquehanna International Group, LLP891,466$110.3M0.16%+486,961+120.4%Added
NZS Capital, LLC882,126$109.2M3.34%−440,817−33.3%Reduced
Caisse de Depot Et Placement du Quebec875,350$108.3M0.20%−258,263−22.8%Reduced
Jensen Investment Management Inc869,464$107.6M1.34%−1,742,545−66.7%Reduced
Korea Investment CORP867,721$107.4M0.22%+14,143+1.7%Added
Williams Jones Wealth Management, LLC.843,540$104.4M1.19%−10,180−1.2%Reduced
Resona Asset Management Co.,Ltd.847,188$104.2M0.49%−116,538−12.1%Reduced
State Farm Mutual Automobile Insurance Co837,852$103.7M0.09%00.0%Unchanged
United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund835,996$103.5M3.77%−81,838−8.9%Reduced
Lazard Freres Gestion S.A.S.835,479$103.4M1.97%−83,170−9.1%Reduced
Mercer Global Advisors Inc835,122$103.3M0.17%+73,607+9.7%Added
Captrust Financial Advisors827,600$102.4M0.21%+11,182+1.4%Added
B. Metzler seel. Sohn & Co. AG819,677$101.4M0.89%−90,485−9.9%Reduced
Analog Century Management LP809,896$100.2M5.38%−132,965−14.1%Reduced
Ensign Peak Advisors, Inc809,264$100.1M0.16%+202,343+33.3%Added
J. Stern & Co. LLP805,073$99.6M7.54%−66,736−7.7%Reduced
Sands Capital Management, LLC795,234$98.4M0.27%−144,887−15.4%Reduced
AXA Investment Managers S.A.782,586$96.8M0.26%+782,586New
Birch Hill Investment Advisors LLC757,569$93.7M3.96%−17,783−2.3%Reduced
Thrivent Financial for Lutherans751,791$93.0M0.18%−30,424−3.9%Reduced
Nordea Investment Management AB742,949$91.3M0.08%−388,860−34.4%Reduced
Mitsubishi UFJ Trust & Banking Corp735,931$91.1M0.20%−8,114−1.1%Reduced
Bridgewater Associates, LP735,263$91.0M0.36%+735,263New
Benjamin Edwards Inc731,023$90.5M1.02%+14,343+2.0%Added
Summit Trail Advisors, LLC728,697$90.3M1.25%+9,507+1.3%Added
Compass Capital Management, Inc726,623$89.9M4.76%−111,090−13.3%Reduced
Zurich Insurance Group Ltd704,410$87.2M0.62%−45,614−6.1%Reduced
Royal London Asset Management Ltd693,883$85.9M0.18%−12,403−1.8%Reduced
Country Trust Bank675,628$83.6M1.83%−133,220−16.5%Reduced
Cartenna Capital, LP675,000$83.5M4.36%+675,000New
Toronto Dominion Bank654,577$80.9M0.16%+19,103+3.0%Added
State of Wisconsin Investment Board653,513$80.9M0.19%−18,731−2.8%Reduced
Teacher Retirement System of Texas651,977$80.7M0.32%+27,878+4.5%Added
Howland Capital Management LLC650,259$80.6M3.07%−17,369−2.6%Reduced
US Bancorp645,940$79.9M0.09%−80,414−11.1%Reduced
Alta Capital Management LLC636,312$78.7M4.38%−36,564−5.4%Reduced
Sandhill Capital Partners LLC632,231$78.2M5.46%−6,460−1.0%Reduced
Manning & Napier Advisors LLC631,373$78.1M1.00%−358,977−36.2%Reduced
CI Private Wealth, LLC629,686$77.9M0.12%+37,614+6.4%Added
Chevy Chase Trust Holdings, Inc.623,327$77.1M0.21%−15,841−2.5%Reduced
Mariner, LLC613,078$75.9M0.10%+43,221+7.6%Added
Dundas Partners LLP606,161$75.0M5.30%−11,221−1.8%Reduced
Creative Planning603,005$74.6M0.06%+30,704+5.4%Added
Foster Dykema Cabot & Partners, LLC601,421$74.5M4.89%−4,794−0.8%Reduced
Varenne Capital Partners601,936$74.5M15.72%−171,809−22.2%Reduced
Wedge Capital Management L L P591,796$73.2M1.24%−82,455−12.2%Reduced
Public Employees Retirement System of Ohio583,077$72.2M0.23%+15,437+2.7%Added
Robeco Institutional Asset Management B.V.577,962$71.5M0.10%−16,035−2.7%Reduced
Logan Capital Management Inc559,395$69.2M2.92%+13,586+2.5%Added
Reynders McVeigh Capital Management, LLC557,282$69.0M3.23%−12,530−2.2%Reduced
London Co of Virginia554,526$68.6M0.38%−1,489,280−72.9%Reduced