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Amphenol

APH

Market cap $195B

1,826 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 283 funds opening new positions, 721 increasing their positions, 621 reducing their positions, and 85 closing their positions.

New

Increased

Maintained

Reduced

Closed

233% more first-time investments, than exits

New positions opened: 283 | Existing positions closed: 85

42% more call options, than puts

Call options by funds: $764M | Put options by funds: $539M

23% more capital invested

Capital invested by funds: $115B → $141B (+$26.4B)

19% more funds holding in top 10

Funds holding in top 10: 78 → 93 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,646 → 1,826 (+180)

2.83% less ownership

Funds ownership: 96.18% → 93.35% (-2.8%)

Holders

1,826

Holders Change

+180

Holders Change %

+10.94%

% of All Funds

23.97%

Holding in Top 10

Holding in Top 10 Change

+15

Holding in Top 10 Change %

+19.23%

% of All Funds

1.22%

New

283

Increased

721

Reduced

621

Closed

Calls

$764M

Puts

$539M

Net Calls

+$225M

Net Calls Change

+$60.9M

Top Buyers

1	Capital International Investors Los Angeles, California	+$1.61B
2	Capital Research Global Investors Los Angeles, California	+$880M
3	Arrowstreet Capital Boston, Massachusetts	+$698M
4	BlackRock New York	+$690M
5	Winslow Capital Management Minneapolis, Minnesota	+$486M

Top Sellers

1	Vanguard Group Malvern, Pennsylvania	-$1.68B
2	T. Rowe Price Investment Management Baltimore, Maryland	-$1.04B
3	Fidelity Investments Boston, Massachusetts	-$971M
4	Bank of New York Mellon New York	-$469M
5	D.E. Shaw & Co New York	-$265M

#	Name	Holding	Trade Value	Shares Change	Change in Stake
26	N 26 Nuveen Charlotte, North Carolina	$964M	-$20.1M	-183,415	-2%
27	27 Victory Capital Management San Antonio, Texas	$963M	-$133M	-1,210,759	-14%
28	28 Arrowstreet Capital Boston, Massachusetts	$901M	+$698M	+6,362,533	+694%
29	29 AllianceBernstein Nashville, Tennessee	$890M	-$91.5M	-834,206	-10%
30	30 Charles Schwab San Francisco, California	$887M	+$8.76M	+79,858	+1%
31	31 Barclays London, United Kingdom	$837M	+$37.3M	+339,888	+5%
32	32 Wells Fargo San Francisco, California	$810M	+$36.9M	+336,686	+5%
33	33 Deutsche Bank Frankfurt Am Main Ge, Germany	$769M	-$24.3M	-221,637	-3%
34	34 Lazard Asset Management New York	$765M	-$37.5M	-341,537	-5%
35	35 Envestnet Asset Management Chicago, Illinois	$747M	+$16.5M	+150,407	+3%
36	36 Neuberger Berman Group New York	$741M	-$12.2M	-111,552	-2%
37	37 Mawer Investment Management Calgary, Alberta, Canada	$731M	-$167M	-1,517,720	-20%
38	38 Amundi Paris, France	$711M	+$62.9M	+573,361	+11%
39	39 Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan	$662M	+$24.3M	+221,457	+4%
40	40 VOYA Investment Management Atlanta, Georgia	$632M	-$8.17M	-74,427	-1%
41	41 Swedbank Stockholm, Sweden	$571M	-$35M	-318,997	-6%
42	42 Winslow Capital Management Minneapolis, Minnesota	$549M	+$486M	+4,432,205	+136,124%
43	43 Alkeon Capital Management New York	$508M	+$157M	+1,433,650	+54%
44	44 Stifel Financial St. Louis, Missouri	$495M	-$169M	-1,536,085	-28%
45	45 California Public Employees Retirement System Sacramento, California	$491M	-$76.9M	-700,500	-15%
46	ECU 46 Egerton Capital (UK) London, United Kingdom	$473M	+$71.9M	+654,949	+21%
47	47 UBS Group Zurich, Switzerland	$472M	-$8.28M	-75,488	-2%
48	48 AQR Capital Management Greenwich, Connecticut	$469M	+$78.7M	+716,889	+23%
49	49 Vontobel Holding Zurich, Switzerland	$465M	+$104M	+944,002	+34%
50	50 Dimensional Fund Advisors Austin, Texas	$443M	-$10.1M	-91,764	-2%