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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
Royal London Asset Management
176
Royal London Asset Management
United Kingdom
$69.7M -$2M -24,395 -3%
Select Equity Group
177
Select Equity Group
New York
$66.8M -$20M -244,759 -27%
WCM
178
Wedge Capital Management
North Carolina
$66.6M -$13.2M -161,139 -19%
ACM
179
Alta Capital Management
Utah
$66.4M -$2.71M -33,177 -5%
State of Wisconsin Investment Board
180
State of Wisconsin Investment Board
Wisconsin
$66.4M -$7.07M -86,431 -11%
CSS
181
Cubist Systematic Strategies
Connecticut
$66.2M +$54.8M +670,468 New
HCM
182
Howland Capital Management
Massachusetts
$66M -$904K -11,055 -2%
AIM
183
Avity Investment Management
Connecticut
$64.1M -$2.66M -32,573 -5%
Chevy Chase Trust
184
Chevy Chase Trust
Maryland
$63.1M +$309K +3,780 +0.6%
SCP
185
Sandhill Capital Partners
New York
$63.1M +$194K +2,368 +0.4%
Toronto Dominion Bank
186
Toronto Dominion Bank
Ontario, Canada
$62.8M +$8.33M +101,889 +19%
PCM
187
Palisade Capital Management
New Jersey
$62.4M -$1.92M -23,433 -4%
SSA
188
Schonfeld Strategic Advisors
New York
$62.1M +$42.5M +520,201 +481%
Teacher Retirement System of Texas
189
Teacher Retirement System of Texas
Texas
$61.6M -$18.3M -223,428 -26%
DP
190
Dundas Partners
United Kingdom
$61M
FDCP
191
Foster Dykema Cabot & Partners
Massachusetts
$60M -$244K -2,980 -0.5%
Ensign Peak Advisors
192
Ensign Peak Advisors
Utah
$59.9M +$2.51M +30,693 +5%
MDSL
193
M.D. Sass LLC
New York
$59.7M -$36M -440,568 -42%
Robeco Institutional Asset Management
194
Robeco Institutional Asset Management
Netherlands
$58.7M -$21.4M -261,865 -31%
Corient Private Wealth
195
Corient Private Wealth
Florida
$58.5M +$4.19M +51,218 +9%
Creative Planning
196
Creative Planning
Kansas
$56.5M +$4.37M +53,437 +10%
RMCM
197
Reynders McVeigh Capital Management
Massachusetts
$56.3M -$2.72M -33,216 -6%
Mariner
198
Mariner
Kansas
$56.3M +$24.1M +295,229 +108%
Ohio Public Employees Retirement System (OPERS)
199
Ohio Public Employees Retirement System (OPERS)
Ohio
$56.1M +$1.87M +22,915 +4%
Treasurer of the State of North Carolina
200
Treasurer of the State of North Carolina
North Carolina
$55.6M +$1.84M +22,540 +4%

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.