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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; 2,339 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, Q4 2025

Institutional positions in Amphenol Corp as of Dec 31, 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
2,059
+262 vs. Q3 2025
Shares held
1.24B
+99.5M (+8.8%) vs. Q3 2025
Total value
$156.8B
+$16.1B (+11.5%) vs. Q3 2025
New holders
345
780 more added
Sold out
83
748 more reduced

32 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 2,059 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: 2,339 institutions
Value heldQ4 2025: $156.8B
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 20262,339$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, Q4 2025

Shares, value and share of portfolio for each institution holding Amphenol Corp; share changes are against Q3 2025.

Institutions holding APH in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Comerica Bank321,316$43.4M0.17%−6,850−2.1%Reduced
Czech National Bank322,765$43.6M0.28%+12,677+4.1%Added
TimesSquare Capital Management, LLC325,015$43.9M0.66%−84,174−20.6%Reduced
Renaissance Group LLC327,153$44.2M1.78%−23,695−6.8%Reduced
Geneva Capital Management LLC334,224$45.2M0.85%−73,012−17.9%Reduced
Ieq Capital, LLC337,016$45.5M0.14%+54,023+19.1%Added
ProShare Advisors LLC344,529$46.6M0.08%+1,243+0.4%Added
Arizona State Retirement System347,038$46.9M0.26%−6,236−1.8%Reduced
Liontrust Investment Partners LLP351,909$47.6M0.71%−50,979−12.7%Reduced
MetLife Investment Management352,209$47.6M0.23%−7,565−2.1%Reduced
Gotham Asset Management, LLC353,888$47.8M0.17%+34,578+10.8%Added
Farmers & Merchants Investments Inc355,685$48.1M1.33%+364+0.1%Added
DnB Asset Management AS357,586$48.3M0.17%−60,562−14.5%Reduced
CCLA Investment Management Ltd359,535$48.6M0.78%+115,659+47.4%Added
D. E. Shaw & Co., Inc.359,724$48.6M0.04%−1,690,383−82.5%Reduced
Jones Financial Companies LLLP363,361$49.1M0.03%+49,064+15.6%Added
Brown Advisory Inc365,368$49.4M0.07%+7,029+2.0%Added
CIBC Asset Management Inc366,464$49.5M0.12%+180,430+97.0%Added
Umb Bank N A367,694$49.7M0.66%−11,139−2.9%Reduced
Campbell Newman Asset Management Inc370,188$50.0M3.66%−39,722−9.7%Reduced
Amanah Holdings Trust382,716$51.7M7.58%00.0%Unchanged
Factory Mutual Insurance Co384,034$51.9M0.53%−9,600−2.4%Reduced
Acadian Asset Management LLC384,541$52.0M0.09%+216,135+128.3%Added
Rafferty Asset Management, LLC386,281$52.2M0.18%−28,198−6.8%Reduced
State of Michigan Retirement System386,974$52.3M0.25%−28,600−6.9%Reduced
McDaniel Terry & Co387,528$52.4M4.56%−18,339−4.5%Reduced
Nippon Life Global Investors Americas, Inc.408,630$55.3M2.29%+13,570+3.4%Added
QRG Capital Management, Inc.410,004$55.4M0.62%+21,161+5.4%Added
Mountain Pacific Investment Advisers Inc412,730$55.8M9.04%−65,308−13.7%Reduced
Public Sector Pension Investment Board419,432$56.7M0.19%+51,464+14.0%Added
State of New Jersey Common Pension Fund D420,734$56.9M0.21%−6,755−1.6%Reduced
Crestwood Advisors Group LLC428,968$58.0M0.97%−4,748−1.1%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main430,127$58.1M0.05%+15,326+3.7%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund437,489$59.1M0.50%+120,800+38.1%Added
KLP Kapitalforvaltning AS440,224$59.6M0.23%+2,400+0.5%Added
State of Tennessee, Treasury Department418,854$60.3M0.19%+476+0.1%Added
Swiss Life Asset Management Ltd448,683$60.6M0.31%+149,725+50.1%Added
Nisa Investment Advisors, LLC452,397$61.2M0.20%−49,550−9.9%Reduced
Roffman Miller Associates Inc465,573$62.9M3.44%−26,905−5.5%Reduced
ING Groep NV468,838$63.4M0.38%+336,702+254.8%Added
Alta Capital Management LLC469,034$63.4M4.22%−167,278−26.3%Reduced
Mn Services Vermogensbeheer B.V.469,362$63.4M0.39%+7,406+1.6%Added
Wedge Capital Management L L P470,080$63.5M1.14%−121,716−20.6%Reduced
Nomura Asset Management Co Ltd470,724$63.6M0.16%+58,820+14.3%Added
Whittier Trust Co451,494$63.8M0.69%+170,668+60.8%Added
Guinness Asset Management LTD471,169$64.5M1.05%−90,336−16.1%Reduced
NZS Capital, LLC485,926$65.7M2.01%−396,200−44.9%Reduced
Robeco Institutional Asset Management B.V.486,529$65.7M0.09%−91,433−15.8%Reduced
Gillespie Robinson & Grimm Inc491,204$66.4M4.66%−61,053−11.1%Reduced
Marshall Wace, LLP491,593$66.4M0.06%−616,278−55.6%Reduced
Logan Capital Management Inc502,364$67.9M2.86%−57,031−10.2%Reduced
Zacks Investment Management510,332$69.0M0.54%−8,619−1.7%Reduced
Treasurer of the State of North Carolina511,267$69.1M0.22%−30,879−5.7%Reduced
Foster Dykema Cabot & Partners, LLC510,294$69.1M4.25%−91,127−15.2%Reduced
Palisade Capital Management LLC512,773$69.3M2.05%−35,657−6.5%Reduced
London Co of Virginia524,534$70.9M0.41%−29,992−5.4%Reduced
Reynders McVeigh Capital Management, LLC528,018$71.4M3.35%−29,264−5.3%Reduced
Dundas Partners LLP532,801$72.0M5.07%−73,360−12.1%Reduced
Rockefeller Capital Management L.P.538,772$72.8M0.13%+88,596+19.7%Added
Pictet Asset Management Holding SA539,642$72.9M0.07%+18,273+3.5%Added
Manning & Napier Advisors LLC540,763$73.7M0.96%−90,610−14.4%Reduced
Storebrand Asset Management AS548,735$74.2M0.20%−538,769−49.5%Reduced
Asset Management One Co.,Ltd.549,562$75.2M0.21%+17,891+3.4%Added
Credit Agricole S A561,460$75.9M0.21%+128,346+29.6%Added
J. Stern & Co. LLP76,769,791$76.8M6.54%+75,964,718+9,435.8%Added
STRS Ohio569,607$77.0M0.29%+17,261+3.1%Added
Public Employees Retirement System of Ohio571,299$77.2M0.24%−11,778−2.0%Reduced
Federated Hermes, Inc.590,204$79.8M0.13%+399,606+209.7%Added
Quantinno Capital Management LP600,976$81.2M0.16%+127,476+26.9%Added
Howland Capital Management LLC609,097$82.5M3.14%−41,162−6.3%Reduced
Bristol Gate Capital Partners Inc.611,263$82.6M4.77%+611,263New
Qube Research & Technologies Ltd611,869$82.7M0.12%−969,688−61.3%Reduced
Compass Capital Management, Inc611,977$82.7M4.59%−114,646−15.8%Reduced
Sandhill Capital Partners LLC612,842$82.8M5.90%−19,389−3.1%Reduced
B. Metzler seel. Sohn & Co. AG616,275$83.5M0.73%−203,402−24.8%Reduced
Creative Planning619,387$83.7M0.06%+16,382+2.7%Added
Chevy Chase Trust Holdings, Inc.621,888$84.0M0.23%−1,439−0.2%Reduced
Citadel Advisors LLC624,065$84.3M0.06%−1,585,041−71.8%Reduced
US Bancorp631,325$85.3M0.10%−14,615−2.3%Reduced
State of Wisconsin Investment Board632,749$85.5M0.19%−20,764−3.2%Reduced
Mariner, LLC632,816$85.5M0.10%+19,738+3.2%Added
Teacher Retirement System of Texas647,891$87.6M0.30%−4,086−0.6%Reduced
Thrivent Financial for Lutherans648,692$87.7M0.16%−103,099−13.7%Reduced
Summit Trail Advisors, LLC658,137$89.1M1.54%−70,560−9.7%Reduced
PFA Pension, Forsikringsaktieselskab659,440$89.8M0.25%+659,440New
Select Equity Group, L.P.665,251$89.9M0.42%−264,867−28.5%Reduced
Country Trust Bank676,194$91.4M1.65%+566+0.1%Added
CI Private Wealth, LLC676,785$91.8M0.12%+47,099+7.5%Added
Royal London Asset Management Ltd688,791$93.1M0.20%−5,092−0.7%Reduced
Benjamin Edwards Inc697,613$94.3M1.04%−33,410−4.6%Reduced
Analog Century Management LP728,059$98.4M4.84%−81,837−10.1%Reduced
Bank of Nova Scotia728,914$98.5M0.15%+374,262+105.5%Added
Birch Hill Investment Advisors LLC732,076$98.9M4.13%−25,493−3.4%Reduced
Lazard Freres Gestion S.A.S.754,763$102.0M1.84%−80,716−9.7%Reduced
Voloridge Investment Management, LLC774,269$104.6M0.37%−864,254−52.7%Reduced
Nordea Investment Management AB776,512$105.5M0.09%+33,563+4.5%Added
Bridgewater Associates, LP798,364$107.9M0.39%+63,101+8.6%Added
United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund804,101$108.7M1.51%−31,895−3.8%Reduced
Macquarie Group Ltd815,545$110.2M0.48%−590,059−42.0%Reduced
Resona Asset Management Co.,Ltd.818,564$111.0M0.53%−28,624−3.4%Reduced