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Amphenol

1,812 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 282 funds opening new positions, 712 increasing their positions, 616 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 call options, than puts

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

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

16% more repeat investments, than reductions

Existing positions increased: 712 | Existing positions reduced: 616

10% more funds holding

Funds holding: 1,6401,812 (+172)

2.98% less ownership

Funds ownership: 96.13%93.15% (-3%)

Holders
1,812
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
92
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$764M
Puts
$539M
Net Calls
Net Calls Change

Top Buyers

1 +$1.82B
2 +$993M
3 +$787M
4
BlackRock
BlackRock
New York
+$778M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
+$548M

Top Sellers

1 -$1.89B
2 -$1.18B
3 -$1.09B
4
Bank of New York Mellon
Bank of New York Mellon
New York
-$529M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$299M
Name Holding Trade Value Shares
Change
Change in
Stake
AIM
276
Achmea Investment Management
Netherlands
$35.2M
Janney Montgomery Scott
277
Janney Montgomery Scott
Pennsylvania
$35.1M
IC
278
IEQ Capital
California
$35M
AC
279
Addenda Capital
Quebec, Canada
$34.9M
SI
280
Stephens Inc
Arkansas
$34.8M
WT
281
Whittier Trust
California
$34.3M
AB
282
Amalgamated Bank
New York
$34.2M
ACM
283
Aquatic Capital Management
Illinois
$33.9M
OAM
284
Oppenheimer Asset Management
New York
$33.6M
Daiwa Securities Group
285
Daiwa Securities Group
Japan
$33.2M
MR
286
Munich Reinsurance
$33.1M
NCM
287
Noesis Capital Mangement
Florida
$32.4M
CC
288
Cornerstone Capital
California
$32.3M
Retirement Systems of Alabama
289
Retirement Systems of Alabama
Alabama
$32.2M
NSAM
290
North Star Asset Management
Wisconsin
$31.9M
JF
291
Jump Financial
Illinois
$31.9M
WAM
292
Weiss Asset Management
Massachusetts
$31.7M
HighTower Advisors
293
HighTower Advisors
Illinois
$31.7M
ERSOT
294
Employees Retirement System of Texas
Texas
$31.5M
Wealth Enhancement Advisory Services
295
Wealth Enhancement Advisory Services
Minnesota
$31.4M
FLII
296
First Long Island Investors
New York
$31.2M
TG
297
TCW Group
California
$30.8M
JSA
298
Jacobson & Schmitt Advisors
Wisconsin
$30.7M
Mirae Asset Global Investments
299
Mirae Asset Global Investments
South Korea
$30.7M
VPIM
300
Vanguard Personalized Indexing Management
California
$30.3M