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Amphenol

1,646 hedge funds and large institutions have $115B invested in Amphenol in 2025 Q2 according to their latest regulatory filings, with 327 funds opening new positions, 556 increasing their positions, 572 reducing their positions, and 89 closing their positions.

New
Increased
Maintained
Reduced
Closed

267% more first-time investments, than exits

New positions opened: 327 | Existing positions closed: 89

63% more funds holding in top 10

Funds holding in top 10: 4878 (+30)

51% more capital invested

Capital invested by funds: $75.8B → $115B (+$38.8B)

44% more call options, than puts

Call options by funds: $537M | Put options by funds: $373M

16% more funds holding

Funds holding: 1,4241,646 (+222)

0.73% more ownership

Funds ownership: 95.45%96.18% (+0.73%)

3% less repeat investments, than reductions

Existing positions increased: 556 | Existing positions reduced: 572

Holders
1,646
Holders Change
+222
Holders Change %
+15.59%
% of All Funds
21.67%
Holding in Top 10
78
Holding in Top 10 Change
+30
Holding in Top 10 Change %
+62.5%
% of All Funds
1.03%
New
327
Increased
556
Reduced
572
Closed
89
Calls
$537M
Puts
$373M
Net Calls
+$164M
Net Calls Change
+$84.9M
Name Holding Trade Value Shares
Change
Change in
Stake
FGP
1651
Freestone Grove Partners
California
-$14.3M -218,674 Closed
PI
1652
PGGM Investments
Netherlands
-$10.5M -160,443 Closed
WCF
1653
West Coast Financial
California
-$9.65M -147,163 Closed
UOC
1654
UBS O'Connor
Illinois
-$7.87M -119,940 Closed
PAMP
1655
Polar Asset Management Partners
Ontario, Canada
-$7.86M -119,774 Closed
FCI
1656
Financial Counselors Inc
Kansas
-$6.97M -106,228 Closed
APF
1657
Alaska Permanent Fund
Alaska
-$6.61M -85,844 Closed
HHAM
1658
HITE Hedge Asset Management
Massachusetts
-$5.5M -83,844 Closed
MMA
1659
Mizuho Markets Americas
New York
-$5.28M -80,500 Closed
SGA
1660
Strategic Global Advisors
California
-$4.96M -75,658 Closed
JFG
1661
Jefferies Financial Group
New York
-$4.71M -71,800 Closed
SCM
1662
SIR Capital Management
New York
-$4.58M -69,873 Closed
LA
1663
Legacy Advisors
Pennsylvania
-$4.51M -68,519 Closed
SFI
1664
Susquehanna Fundamental Investments
Pennsylvania
-$4.2M -63,967 Closed
Hudson Bay Capital Management
1665
Hudson Bay Capital Management
Connecticut
-$3.84M -58,571 Closed
PFA
1666
Peak Financial Advisors
Colorado
-$2.96M -45,194 Closed
WG
1667
Winton Group
United Kingdom
-$2.07M -31,505 Closed
OQS
1668
Occudo Quantitative Strategies
Florida
-$2.09M -31,435 Closed
DFCM
1669
Dark Forest Capital Management
Puerto Rico
-$1.85M -28,169 Closed
USAA
1670
United Services Automobile Association
Texas
-$1.85M -27,848 Closed
CC
1671
Covalis Capital
United Kingdom
-$1.71M -26,025 Closed
ACM
1672
Aster Capital Management
United Arab Emirates
-$1.64M -24,687 Closed
QIM
1673
Quantitative Investment Management
Virginia
-$1.52M -23,123 Closed
SCM
1674
Semanteon Capital Management
Massachusetts
-$1.5M -22,849 Closed
GCM
1675
Graham Capital Management
Connecticut
-$1.34M -20,366 Closed

APH Hedge Fund Activity: Q2 2025 in Review

1,646 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Amphenol (APH) for Q2 2025, worth a combined $115B — up 51% from $75.8B a quarter earlier.

Buyers outnumbered sellers: 327 funds opened new APH positions and 89 closed out — a net gain of 238 holders — while 556 added to existing stakes and 572 trimmed.

The largest buyer was Victory Capital Management, adding an estimated $615M. The largest seller was Vanguard Group, cutting an estimated $1.18B.

  • 1,646 institutional investors held Amphenol (APH) as of Q2 2025, up from 1,424 in Q1 2025.
  • Funds reported $115B of Amphenol stock for Q2 2025, up 51% quarter-over-quarter.
  • 327 funds opened new Amphenol positions in Q2 2025 and 89 closed out, a net change of +238 holders.
  • The largest Amphenol buyer in Q2 2025 was Victory Capital Management, an estimated $615M added.
  • The largest Amphenol seller in Q2 2025 was Vanguard Group, an estimated $1.18B sold.

Based on aggregated 13F filings for Q2 2025.