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Amphenol

1,637 hedge funds and large institutions have $114B invested in Amphenol in 2025 Q2 according to their latest regulatory filings, with 328 funds opening new positions, 550 increasing their positions, 569 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more call options, than puts

Call options by funds: $ | Put options by funds: $

16% more funds holding

Funds holding: 1,4121,637 (+225)

2.37% more ownership

Funds ownership: 93.64%96.01% (+2.4%)

3% less repeat investments, than reductions

Existing positions increased: 550 | Existing positions reduced: 569

Holders
1,637
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
77
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$537M
Puts
$373M
Net Calls
Net Calls Change

Top Buyers

1 +$743M
2 +$536M
3 +$492M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$368M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$333M
Name Holding Trade Value Shares
Change
Change in
Stake
Select Equity Group
176
Select Equity Group
New York
$66.8M
WCM
177
Wedge Capital Management
North Carolina
$66.6M
ACM
178
Alta Capital Management
Utah
$66.4M
State of Wisconsin Investment Board
179
State of Wisconsin Investment Board
Wisconsin
$66.4M
CSS
180
Cubist Systematic Strategies
Connecticut
$66.2M
HCM
181
Howland Capital Management
Massachusetts
$66M
AIM
182
Avity Investment Management
Connecticut
$64.1M
Chevy Chase Trust
183
Chevy Chase Trust
Maryland
$63.1M
SCP
184
Sandhill Capital Partners
New York
$63.1M
Toronto Dominion Bank
185
Toronto Dominion Bank
Ontario, Canada
$62.8M
PCM
186
Palisade Capital Management
New Jersey
$62.4M
SSA
187
Schonfeld Strategic Advisors
New York
$62.1M
Teacher Retirement System of Texas
188
Teacher Retirement System of Texas
Texas
$61.6M
DP
189
Dundas Partners
United Kingdom
$61M
FDCP
190
Foster Dykema Cabot & Partners
Massachusetts
$60M
Ensign Peak Advisors
191
Ensign Peak Advisors
Utah
$59.9M
MDSL
192
M.D. Sass LLC
New York
$59.7M
Robeco Institutional Asset Management
193
Robeco Institutional Asset Management
Netherlands
$58.7M
Corient Private Wealth
194
Corient Private Wealth
Florida
$58.5M
Creative Planning
195
Creative Planning
Kansas
$56.5M
RMCM
196
Reynders McVeigh Capital Management
Massachusetts
$56.3M
Mariner
197
Mariner
Kansas
$56.3M
Ohio Public Employees Retirement System (OPERS)
198
Ohio Public Employees Retirement System (OPERS)
Ohio
$56.1M
Treasurer of the State of North Carolina
199
Treasurer of the State of North Carolina
North Carolina
$55.6M
Twin Tree Management
200
Twin Tree Management
Texas
$54.9M