Amphenol: which funds bought and sold

Institutions that bought and sold Amphenol shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 1,319 institutions that filed 13F reports for both quarters added to or opened positions in Amphenol, and 911 cut or closed them. Together they sold a net 6.7M shares, −0.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 541K shares (+0.2%); index fund managers were net buyers of 1.6M shares (+0.5%). 341 opened a new position and 139 sold out entirely.

Bought, Q2 2026 1,319 institutions, 341 of them new holders Sold, Q2 2026 911 institutions, 139 of them sold out

Net change, all compared −6.7M shares (−0.6%)

Net change, active managers +541K shares (+0.2%), 65 bought, 69 sold

Buyers versus sellers

institutions compared, 2,420

1,319 bought 190 911 sold

Active managers and hedge funds 65 bought · 69 sold · +541K

Index fund managers 6 bought · 6 sold · +1.6M

Other institutions 1,248 bought · 836 sold · −8.8M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Capital International Investors Active manager	+7.7M +21.8%	43.0M	$7.6B
Price T Rowe Associates Inc Active manager	+5.8M +22.2%	32.0M	$5.6B
Ameriprise Financial Inc	+3.9M +203.6%	5.9M	$1B
Morgan Stanley	+3.1M +17.5%	20.6M	$3.6B
Capital Research Global Investors Active manager	+2.9M +10.7%	29.5M	$5.2B
State Street Corp Index funds	+2.1M +3.7%	59.5M	$10.5B
Egerton Capital (UK) LLP Hedge fund	+2.0M +69.5%	4.9M	$858M
Alliancebernstein L.P. Active manager	+2.0M +48.9%	6.1M	$767M
Nuveen, LLC	+1.9M +14.8%	15.1M	$2.7B
Wellington Management Group LLP Active manager	+1.6M +10.5%	16.6M	$2.9B
American Century Companies Inc Active manager	+1.6M +29.6%	6.9M	$1.2B
Swedbank AB	+1.5M +47.6%	4.8M	$844M
Balyasny Asset Management L.P. Hedge fund	+1.4M +7406.9%	1.5M	$257M
Amundi	+1.3M +19.9%	7.7M	$1.3B
Alkeon Capital Management LLC Hedge fund	+1.1M +24.1%	5.7M	$1B
Van Eck Associates Corp	+1.1M +417.6%	1.3M	$233M
1832 Asset Management L.P.	+998K +771.1%	1.1M	$199M
SG Americas Securities, LLC	+959K +23.0%	5.1M	$902M
Capital World Investors Active manager	+892K +57.4%	2.4M	$431M
Impax Asset Management Group PLC	+851K +246.9%	1.2M	$211M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Capital International Investors Active manager	+7.7M +21.8%	43.0M	$7.6B
Price T Rowe Associates Inc Active manager	+5.8M +22.2%	32.0M	$5.6B
Capital Research Global Investors Active manager	+2.9M +10.7%	29.5M	$5.2B
Egerton Capital (UK) LLP Hedge fund	+2.0M +69.5%	4.9M	$858M
Alliancebernstein L.P. Active manager	+2.0M +48.9%	6.1M	$767M
Wellington Management Group LLP Active manager	+1.6M +10.5%	16.6M	$2.9B
American Century Companies Inc Active manager	+1.6M +29.6%	6.9M	$1.2B
Balyasny Asset Management L.P. Hedge fund	+1.4M +7406.9%	1.5M	$257M
Alkeon Capital Management LLC Hedge fund	+1.1M +24.1%	5.7M	$1B
Capital World Investors Active manager	+892K +57.4%	2.4M	$431M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Jpmorgan Chase & Co	−10.1M −20.4%	39.2M	$6.5B
FMR LLC Active manager	−8.9M −11.2%	70.6M	$12.4B
Bank Of America Corp	−4.5M −21.6%	16.2M	$2.9B
Axiom Investors LLC Active manager	−3.9M −91.0%	384K	$67.6M
Invesco Ltd.	−3.5M −29.7%	8.3M	$1.5B
Massachusetts Financial Services Co Active manager	−3.4M −24.7%	10.5M	$1.9B
Rathbones Group PLC	−3.0M −48.6%	3.2M	$559M
Voya Investment Management LLC	−2.8M −60.1%	1.9M	$331M
TD Asset Management Inc	−2.2M −62.0%	1.4M	$242M
Marshall Wace, LLP Hedge fund	−2.2M −95.3%	109K	$19.3M
Bank Of New York Mellon Corp	−1.7M −10.7%	14.6M	$2.6B
Mawer Investment Management Ltd. Active manager	−1.6M −40.8%	2.4M	$416M
Worldquant Millennium Advisors LLC Hedge fund	−1.5M −65.9%	794K	$140M
Millennium Management LLC Hedge fund	−1.5M −63.9%	838K	$148M
Edgewood Management LLC Active manager	−1.5M −31.8%	3.1M	$554M
Alphinity Investment Management Pty Ltd	−1.3M Sold out	0	—
AQR Capital Management LLC Hedge fund	−1.2M −20.4%	4.5M	$775M
Qube Research & Technologies Ltd Hedge fund	−1.1M −42.9%	1.5M	$257M
Wealth Enhancement Advisory Services, LLC	−1.0M −66.3%	526K	$46.7M
Jane Street Group, LLC	−1.0M −92.2%	86K	$15.1M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
FMR LLC Active manager	−8.9M −11.2%	70.6M	$12.4B
Axiom Investors LLC Active manager	−3.9M −91.0%	384K	$67.6M
Massachusetts Financial Services Co Active manager	−3.4M −24.7%	10.5M	$1.9B
Marshall Wace, LLP Hedge fund	−2.2M −95.3%	109K	$19.3M
Mawer Investment Management Ltd. Active manager	−1.6M −40.8%	2.4M	$416M
Worldquant Millennium Advisors LLC Hedge fund	−1.5M −65.9%	794K	$140M
Millennium Management LLC Hedge fund	−1.5M −63.9%	838K	$148M
Edgewood Management LLC Active manager	−1.5M −31.8%	3.1M	$554M
AQR Capital Management LLC Hedge fund	−1.2M −20.4%	4.5M	$775M
Qube Research & Technologies Ltd Hedge fund	−1.1M −42.9%	1.5M	$257M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Dsm Capital Partners LLCActive manager	710K	$125M
E20 Capital Ltd	704K	$124M
Atreides Management, LPHedge fund	640K	$113M
Point72 Asset Management, L.P.Hedge fund	619K	$109M
Cardano Risk Management B.V.	581K	$102M
Logan Capital Management Inc	516K	$91.1M
LMR Partners LLPHedge fund	511K	$90.1M
Fifthdelta Ltd	486K	$85.6M
Signature Estate & Investment Advisors LLC	482K	$85M
M&G PLC	346K	$60.8M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Alphinity Investment Management Pty Ltd	1.3M	$162M
T. Rowe Price Investment Management, Inc.Active manager	655K	$82.8M
Tudor Investment Corp Et AlHedge fund	614K	$77.6M
Munich Reinsurance Co Stock Corp In Munich	293K	$37M
HRT Financial LP	279K	$35.2M
Trexquant Investment LPHedge fund	243K	$30.6M
Zimmer Partners, LPHedge fund	232K	$29.3M
Lone Pine Capital LLCHedge fund	223K	$28.2M
Atalanta Sosnoff Capital, LLCActive manager	220K	$27.8M
Natixis	191K	$24.2M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 2,315
Ten largest holders: 44.7%
Index fund managers: 29.0%
Active managers and hedge funds: 28.7%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	65	69	15	15	+541K	+0.2%
Index fund managers	6	6	0	0	+1.6M	+0.5%
Other institutions	1,248	836	326	124	−8.8M	−1.9%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Amphenol.

Only managers that filed a holdings report for both quarters are compared (2,420 here). 78 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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