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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
Citadel Advisors
76
Citadel Advisors
Florida
$223M +$88.4M +1,080,932 +92%
MIM
77
Meridiem Investment Management
United Kingdom
$210M -$39.8M -486,870 -19%
Bank Julius Baer & Co
78
Bank Julius Baer & Co
Switzerland
$210M -$3.27M -39,983 -2%
PCH
79
Polar Capital Holdings
United Kingdom
$204M +$65.5M +801,120 +63%
LCOV
80
London Company of Virginia
Virginia
$202M -$6.97M -85,216 -4%
JHP
81
James Hambro & Partners
United Kingdom
$198M -$3.8M -46,477 -2%
CG
82
Carmignac Gestion
France
$192M -$10.2M -124,500 -6%
Bank of Montreal
83
Bank of Montreal
Ontario, Canada
$191M -$20.6M -252,015 -12%
HSBC Holdings
84
HSBC Holdings
United Kingdom
$189M -$51M -623,229 -25%
California State Teachers Retirement System (CalSTRS)
85
California State Teachers Retirement System (CalSTRS)
California
$189M +$1.42M +17,403 +0.9%
Lord, Abbett & Co
86
Lord, Abbett & Co
New Jersey
$188M +$156M +1,902,362 New
Two Sigma Investments
87
Two Sigma Investments
New York
$187M +$151M +1,847,845 +3,839%
BAMCO Inc
88
BAMCO Inc
New York
$187M +$2.94M +35,978 +2%
Public Employees Retirement Association of Colorado
89
Public Employees Retirement Association of Colorado
Colorado
$181M -$155K -1,892 -0.1%
1832 Asset Management
90
1832 Asset Management
Ontario, Canada
$178M +$146M +1,781,570 +8,384%
Jane Street
91
Jane Street
New York
$177M +$115M +1,408,928 +364%
Ameriprise
92
Ameriprise
Minnesota
$172M -$37.1M -453,813 -20%
Los Angeles Capital Management
93
Los Angeles Capital Management
California
$172M -$53.5M -653,875 -27%
Citigroup
94
Citigroup
New York
$169M -$5.1M -62,419 -4%
MC
95
Maren Capital
Illinois
$167M +$4.1M +50,096 +3%
SCM
96
Snyder Capital Management
California
$163M -$18.5M -225,630 -12%
GIM
97
Glenmede Investment Management
Pennsylvania
$159M +$132M +1,612,788 New
New York State Common Retirement Fund
98
New York State Common Retirement Fund
New York
$159M -$938K -11,468 -0.7%
ACP
99
Atalan Capital Partners
New York
$158M +$16.8M +205,000 +15%
DB
100
Danske Bank
Denmark
$147M +$6.62M +81,002 +6%

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.