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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
DekaBank Deutsche Girozentrale
126
DekaBank Deutsche Girozentrale
Germany
$106M +$1.35M +16,526 +2%
Man Group
127
Man Group
United Kingdom
$106M -$84.8M -1,037,225 -49%
WorldQuant Millennium Advisors
128
WorldQuant Millennium Advisors
New York
$105M +$9.26M +113,273 +12%
Allspring Global Investments
129
Allspring Global Investments
North Carolina
$105M -$4.15M -50,772 -5%
National Bank of Canada
130
National Bank of Canada
Quebec, Canada
$104M -$64.7M -791,318 -43%
Baird Financial Group
131
Baird Financial Group
Wisconsin
$104M +$5.25M +64,252 +7%
BFS
132
Bradley Foster & Sargent
Connecticut
$102M -$503K -6,147 -0.6%
Fiera Capital (Canada)
133
Fiera Capital (Canada)
Quebec, Canada
$101M +$3.7M +45,256 +5%
Russell Investments Group
134
Russell Investments Group
United Kingdom
$101M -$49.2M -601,433 -37%
CPC
135
Cookson Peirce & Co
Pennsylvania
$99.4M -$1.72M -21,001 -2%
QCM
136
QRG Capital Management
Illinois
$98.7M +$3.39M +41,428 +4%
MNA
137
Manning & Napier Advisors
New York
$97.8M +$81M +990,350 New
KeyBank National Association
138
KeyBank National Association
Ohio
$97.2M -$9.35M -114,374 -10%
Aberdeen Group
139
Aberdeen Group
United Kingdom
$97.1M +$3.35M +40,967 +4%
RAM
140
Resona Asset Management
Japan
$94.9M -$12.2M -149,241 -13%
MPIA
141
Mountain Pacific Investment Advisers
Idaho
$94.9M -$9.94M -121,544 -11%
Canada Pension Plan Investment Board
142
Canada Pension Plan Investment Board
Ontario, Canada
$93.6M -$26.1M -319,188 -25%
ACM
143
Analog Century Management
New York
$93.1M -$19.2M -234,206 -20%
Sands Capital Management
144
Sands Capital Management
Virginia
$92.8M +$897K +10,969 +1%
Prudential Financial
145
Prudential Financial
New Jersey
$92.1M +$23.4M +286,027 +44%
LPL Financial
146
LPL Financial
California
$91.3M +$11M +134,114 +17%
LFG
147
Lazard Frères Gestion
France
$90.7M -$5.54M -67,797 -7%
CBUSF
148
Construction & Building Unions Superannuation Fund
Australia
$90.6M -$4.03M -49,278 -5%
Arrowstreet Capital
149
Arrowstreet Capital
Massachusetts
$90.5M -$86.7M -1,060,006 -54%
BMSSC
150
B. Metzler seel. Sohn & Co
Germany
$89.9M -$9.37M -114,618 -11%

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.