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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
BOK Financial Private Wealth, Inc.46,605$5.77M0.36%−459−1.0%Reduced
Capital International Ltd46,614$5.77M0.21%+46,614New
Sumitomo Life Insurance Co46,565$5.76M0.18%−917−1.9%Reduced
Cape Cod Five Cents Savings Bank87,072$5.67M0.52%00.0%Unchanged
Connable Office Inc45,746$5.66M0.53%+195+0.4%Added
Kestra Advisory Services, LLC45,626$5.65M0.03%+14,702+47.5%Added
Eastern Bank45,584$5.64M0.10%+44,752+5,378.8%Added
Alcosta Capital Management, Inc.45,455$5.63M3.03%+45,455New
AlphaCore Capital LLC45,275$5.61M0.19%+3,436+8.2%Added
Argent Trust Co45,076$5.58M0.20%−4,592−9.2%Reduced
Mitchell Capital Management Co44,931$5.56M0.95%+1,246+2.9%Added
Lee Johnson Capital Management, LLC44,803$5.54M1.84%+44,803New
Allstate Corp44,438$5.50M0.13%+41,770+1,565.6%Added
Okabena Investment Services Inc44,218$5.47M1.06%+220.0%Added
Charter Trust Co44,100$5.46M0.33%−1,888−4.1%Reduced
Conning Inc.43,956$5.44M0.18%+35,269+406.0%Added
Buckhead Capital Management LLC43,530$5.39M1.96%−6,751−13.4%Reduced
Bright Rock Capital Management, LLC43,000$5.32M1.04%00.0%Unchanged
Lombard Odier Asset Management (Switzerland) SA42,817$5.30M0.25%+3,800+9.7%Added
Vestmark Advisory Solutions, Inc.42,788$5.30M0.10%−5,074−10.6%Reduced
Ossiam42,731$5.29M0.07%−478,393−91.8%Reduced
Tokio Marine Asset Management Co Ltd42,535$5.26M0.19%+1,235+3.0%Added
Montag A & Associates Inc42,452$5.26M0.24%−38,540−47.6%Reduced
Arrow Financial Corp42,291$5.23M0.54%−1,970−4.5%Reduced
First National Advisers, LLC42,215$5.22M0.71%−11,610−21.6%Reduced
Quadrant Capital Group LLC42,100$5.21M0.17%+768+1.9%Added
Empirical Finance, LLC41,863$5.18M0.25%+414+1.0%Added
PDT Partners, LLC41,768$5.17M0.33%−7,932−16.0%Reduced
SummitTX Capital, L.P.41,484$5.13M0.21%+32,002+337.5%Added
Farther Finance Advisors, LLC41,437$5.13M0.08%+20,328+96.3%Added
Signaturefd, LLC41,211$5.10M0.08%+693+1.7%Added
Wesbanco Bank Inc41,167$5.09M0.14%−27−0.1%Reduced
Metis Global Partners, LLC41,040$5.08M0.12%−2,185−5.1%Reduced
Duncker Streett & Co Inc40,952$5.07M0.88%−2,788−6.4%Reduced
Allworth Financial LP40,595$5.02M0.02%−2,121−5.0%Reduced
Chapin Davis, Inc.40,519$5.01M1.23%+1,879+4.9%Added
McKinley Carter Wealth Services, Inc.40,350$4.99M0.26%+40,350New
Kestra Private Wealth Services, LLC39,868$4.93M0.06%+4,185+11.7%Added
Stone Point Wealth LLC39,763$4.92M1.40%−4,031−9.2%Reduced
MAI Capital Management39,689$4.91M0.03%+28,940+269.2%Added
First National Bank of Omaha39,668$4.91M0.31%−13,537−25.4%Reduced
Transamerica Financial Advisors, Inc.39,637$4.91M0.41%+39,637New
Horizon Investment Services, LLC39,436$4.88M1.84%+29,056+279.9%Added
Harbour Capital Advisors, LLC38,930$4.85M0.99%−1,221−3.0%Reduced
Northwestern Mutual Investment Management Company, LLC38,914$4.82M0.07%+326+0.8%Added
Donaldson Capital Management, LLC38,720$4.79M0.15%+38,720New
Palisade Asset Management, LLC38,307$4.74M0.44%+80.0%Added
Bessemer Group Inc38,289$4.74M0.01%+1,000+2.7%Added
Alamar Capital Management, LLC38,210$4.73M2.50%−100−0.3%Reduced
Herold Advisors, Inc.38,176$4.72M1.09%+6,200+19.4%Added
Weaver Capital Management LLC38,167$4.72M1.03%−349−0.9%Reduced
Sequoia Financial Advisors, LLC38,043$4.71M0.03%+4,460+13.3%Added
Telligent Fund, LP38,000$4.70M4.02%+8,000+26.7%Added
Union Bancaire Privee, UBP SA48,080$4.70M0.10%+5,480+12.9%Added
Linden Thomas Advisory Services, LLC37,874$4.69M0.47%+857+2.3%Added
Allianz SE37,760$4.67M0.10%00.0%Unchanged
Decatur Capital Management, Inc.37,756$4.67M1.86%+2,903+8.3%Added
Argonautica Private Wealth Management, Inc37,748$4.67M1.36%+50+0.1%Added
Meeder Advisory Services, Inc.37,637$4.66M0.22%−301−0.8%Reduced
Oarsman Capital, Inc.37,364$4.62M0.65%+1,631+4.6%Added
Monument Capital Management37,288$4.61M1.15%−820−2.2%Reduced
Consolidated Planning Corp37,020$4.58M0.48%−9,682−20.7%Reduced
Group One Trading, L.P.36,950$4.57M0.14%+36,950New
Roundview Capital LLC36,601$4.53M0.29%+2,120+6.1%Added
Sandler Capital Management36,508$4.52M1.66%+36,508New
Central Pacific Bank - Trust Division36,478$4.51M0.55%−1,554−4.1%Reduced
Wakefield Asset Management LLLP36,453$4.51M1.23%−7,345−16.8%Reduced
Ballentine Partners, LLC36,357$4.50M0.06%+4,255+13.3%Added
Weatherly Asset Management L. P.36,179$4.48M0.37%−5,910−14.0%Reduced
AG2R la Mondiale Gestion D'Actifs45,300$4.47M0.23%00.0%Unchanged
Inscription Capital, LLC35,739$4.42M0.48%+6,690+23.0%Added
Harvest Investment Services, LLC35,081$4.34M0.87%+19,775+129.2%Added
Sciencast Management LP35,064$4.34M0.81%−4,579−11.6%Reduced
Fiduciary Group LLC35,022$4.33M0.38%+89+0.3%Added
CAPROCK Group, Inc.39,800$4.33M0.11%+39,800New
Plato Investment Management Ltd35,110$4.31M0.29%−3,895−10.0%Reduced
Jefferies Financial Group Inc.34,706$4.29M0.04%+34,706New
Martingale Asset Management L P34,503$4.27M0.11%+34,503New
RSM US Wealth Management LLC34,385$4.26M0.06%+5,633+19.6%Added
Capital Fund Management S.A.33,950$4.20M0.04%+33,950New
Legato Capital Management LLC33,776$4.18M0.46%−5,138−13.2%Reduced
Moody Lynn & Lieberson, LLC33,733$4.17M0.22%+600+1.8%Added
Ingalls & Snyder LLC33,725$4.17M0.14%−10,776−24.2%Reduced
True North Advisors, LLC33,555$4.15M0.66%−2,985−8.2%Reduced
Argentarii, LLC33,165$4.10M1.75%−50.0%Reduced
Fox Hill Wealth Management33,056$4.09M1.91%−1,651−4.8%Reduced
Marvin & Palmer Associates Inc29,309$4.08M3.04%−2,417−7.6%Reduced
MUFG Securities Americas Inc.32,924$4.07M0.26%+6,116+22.8%Added
Squarepoint Ops LLC32,566$4.03M0.01%−2,760−7.8%Reduced
Connor, Clark & Lunn Investment Management Ltd.32,449$4.02M0.01%+32,449New
Eads & Heald Wealth Management32,381$4.01M1.91%−2,783−7.9%Reduced
Mesirow Financial Investment Management, Inc.32,349$4.00M0.07%+728+2.3%Added
Cox Capital Mgt LLC32,327$4.00M2.61%+110+0.3%Added
Oribel Capital Management, LP32,200$3.98M0.47%−255,900−88.8%Reduced
Bleakley Financial Group, LLC31,999$3.96M0.09%−1,087−3.3%Reduced
Coldstream Capital Management Inc31,798$3.93M0.05%+457+1.5%Added
Kentucky Retirement Systems Insurance Trust Fund31,732$3.93M0.26%−398−1.2%Reduced
Fortem Financial Group, LLC31,589$3.91M1.12%+3,890+14.0%Added
Walleye Trading LLC31,503$3.90M0.06%+31,503New
Parr McKnight Wealth Management Group, LLC31,438$3.89M0.51%−1,070−3.3%Reduced