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Amphenol
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Overview Fund Activity

1,409 hedge funds and large institutions have $74.1B invested in Amphenol in 2025 Q1 according to their latest regulatory filings, with 183 funds opening new positions, 593 increasing their positions, 463 reducing their positions, and 137 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,409
Holders Change
+21
Holders Change %
+1.51%
% of All Funds
19.14%
Holding in Top 10
46
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-8%
% of All Funds
0.62%
New
183
Increased
593
Reduced
463
Closed
137
Calls
$259M
Puts
$179M
Net Calls
+$79.2M
Net Calls Change
+$60.6M

Top Buyers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
+$728M
2
UBS AM
UBS AM
Illinois
+$497M
3
Wellington Management Group
Wellington Management Group
Massachusetts
+$338M
4
Franklin Resources
Franklin Resources
California
+$269M
5
BlackRock
BlackRock
New York
+$216M

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$1.1B
2
Citadel Advisors
Citadel Advisors
Florida
-$275M
3
Winslow Capital Management
Winslow Capital Management
Minnesota
-$244M
4
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$175M
5
Mawer Investment Management
Mawer Investment Management
Alberta, Canada
-$163M
Name Holding Trade Value Shares
Change 		Shares
Change %
TMAM
576
Tokio Marine Asset Management
Japan
$2.59M +$148K +2,249 +6%
HA
577
Herold Advisors
New York
$2.59M +$31.7K +484 +1%
GI
578
GAMMA Investing
California
$2.59M +$253K +3,860 +11%
WCM
579
Weaver Capital Management
Georgia
$2.58M +$2.3K +35 +0.1%
MCM
580
Manchester Capital Management
Vermont
$2.56M +$197K +3,007 +8%
WDA
581
Wendell David Associates
New Hampshire
$2.54M +$1.01M +15,450 +66%
HCA
582
Harbour Capital Advisors
Virginia
$2.54M +$38.2K +610 +2%
NMIMC
583
Northwestern Mutual Investment Management Company
Wisconsin
$2.53M +$15.6K +238 +0.6%
PAM
584
Palisade Asset Management
Minnesota
$2.52M +$4.85K +74 +0.2%
ACM
585
Alamar Capital Management
California
$2.52M +$2.52M +38,285 New
MIP
586
Marietta Investment Partners
Wisconsin
$2.5M +$18.6K +284 +0.8%
MOS
587
MGO One Seven
Ohio
$2.49M +$233K +3,550 +10%
A
588
Allianz
Germany
$2.48M -$197K -3,000 -7%
Squarepoint
589
Squarepoint
New York
$2.47M -$1.39M -21,172 -36%
FHWM
590
Fox Hill Wealth Management
Massachusetts
$2.44M +$123K +1,880 +5%
RBI
591
Raiffeisen Bank International
Austria
$2.43M -$10.8M -162,702 -82%
MFG
592
Merit Financial Group
Georgia
$2.42M +$1.49M +22,744 +162%
OC
593
Oarsman Capital
Wisconsin
$2.41M +$57.8K +881 +2%
AAMU
594
APG Asset Management US
New York
$2.41M – – –
MAS
595
Meeder Advisory Services
Ohio
$2.37M +$10.2K +156 +0.4%
KWM
596
Keebeck Wealth Management
Illinois
$2.36M +$2.36M +35,922 New
Loomis, Sayles & Company
597
Loomis, Sayles & Company
Massachusetts
$2.35M +$2.26M +34,519 +2,584%
CL
598
Choreo LLC
Illinois
$2.32M -$597K -9,085 -20%
WSFS
599
Wilmington Savings Fund Society
Delaware
$2.32M -$68K -1,036 -3%
S
600
SignatureFD
Georgia
$2.32M +$162K +2,474 +8%
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