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Amphenol Corp · 13F filings

APH Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns Amphenol Corp and what the big funds did with it last quarter, from every SEC 13F filing. 2,329 funds reported holding APH at Jun 30, 2026, together owning 94.7% of the company.

← APH stock page

Fund sentiment
Bullish
Strongly bearishNeutralStrongly bullish
  • ▲1,311 buying vs 908 selling
  • ▲Held by funds +1.0 pts
  • ▲Funds holding +194
  • ▼Superinvestors: 1 added, 5 cut
  • ▲Put/call 2.28 to 0.61

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding2,329+194 vs Q1 2026
Held by funds94.7%+1.0 pts
Value held$205B2.34B shares
Put/call ratio0.61down from 2.28

Funds holding and ownership

8 quarters
Q3 2024: 1,297 fundsQ3 '24Q4 2024: 1,409 fundsQ4 '24Q1 2025: 1,428 fundsQ1 '25Q2 2025: 1,652 fundsQ2 '25Q3 2025: 1,833 fundsQ3 '25Q4 2025: 2,060 fundsQ4 '25Q1 2026: 2,135 fundsQ1 '26Q2 2026: 2,329 fundsQ2 '2694.7% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding2,3292,135+9.1%
In funds' top 1011686+34.9%
13F shares2.34B2.31B+1.0%
Held by funds94.7%93.7%+1.0 pts
New positions348221+57.5%
Increased963850+13.3%
Reduced764805−5.1%
Sold out144146−1.4%
Calls (shares)3.9M2M+92.8%
Puts (shares)2.4M5.3M−55.5%
Put/call ratio0.612.28−73.1%

Buyers vs sellers

adding or new vs cutting or sold out
Q4 2024: 633 buyingQ4 2024: 582 sellingQ4 '24Q1 2025: 757 buyingQ1 2025: 596 sellingQ1 '25Q2 2025: 855 buyingQ2 2025: 654 sellingQ2 '25Q3 2025: 973 buyingQ3 2025: 696 sellingQ3 '25Q4 2025: 992 buyingQ4 2025: 821 sellingQ4 '25Q1 2026: 1,071 buyingQ1 2026: 951 sellingQ1 '26Q2 2026: 1,311 buyingQ2 2026: 908 sellingQ2 '26
Buying 1,311Selling 908latest quarter

Superinvestors in APH

All superinvestors →

Who owns APH

share of fund held shares
  • Index and passive funds31.3%
  • Active managers and hedge funds46.1%
  • Banks and brokers18.0%
  • Pensions, insurers and other4.6%

The top 10 holders own 44.7% of all APH shares that funds reported. Groups are our own grouping of filers by name.

Put/call ratio

funds' options, market makers left out
1.00Q3 2024: 1.03Q3 '24Q4 2024: 0.92Q4 '24Q1 2025: 0.62Q1 '25Q2 2025: 0.94Q2 '25Q3 2025: 0.79Q3 '25Q4 2025: 1.27Q4 '25Q1 2026: 2.28Q1 '26Q2 2026: 0.61Q2 '260.61

Above 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.

Filed so far for Q3 2026

941 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1BlackRock, Inc.8.20%203M$17.9B−1.4M
2Vanguard Capital Management LLC6.51%161M$14.2B+944K
3Fmr LLC5.72%141M$12.4B−17.8M
4State Street Corp4.82%119M$10.5B+4.2M
5Capital International Investors3.49%86.1M$7.6B+15.4M
6Jpmorgan Chase & Co3.17%78.4M$6.5B−20.1M
7Vanguard Portfolio Management LLC2.89%71.4M$6.3B−323K
8Price T Rowe Associates Inc /md/2.59%64M$5.6B+11.6M
9Geode Capital Management, LLC2.52%62.1M$5.5B−454K
10Capital Research Global Investors2.39%59M$5.2B+5.7M
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

APH institutional ownership FAQ

Who owns the most APH stock?

In Q2 2026 13F filings the largest holder of APH was BlackRock, Inc., followed by Vanguard Capital Management LLC and Fmr LLC. Index fund managers are usually the biggest holders of large companies.

What percentage of APH is owned by institutions?

Funds that file 13F reports held 94.7% of APH's shares at Jun 30, 2026, compared with 93.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying APH?

In Q2 2026, 1,311 funds bought APH (348 of them new positions) and 908 sold (144 sold out completely). Among well known investors, 1 added and 5 cut. Our fund sentiment for APH is bullish.

What is APH's institutional put/call ratio?

Funds reported $211M of APH puts against $344M of calls, a put/call ratio of 0.61 (2.28 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.

How current is this APH ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.