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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 %
QT
1426
Quantbot Technologies
New York
– -$10.4M -149,556 Closed
PAS
1427
Point72 Asia (Singapore)
Singapore
– -$9.77M -140,664 Closed
MCP
1428
Meridiem Capital Partners
Texas
– -$9.72M -139,952 Closed
QCM
1429
Qsemble Capital Management
New York
– -$8.27M -119,068 Closed
OCM
1430
Oribel Capital Management
New York
– -$8.25M -118,800 Closed
DKCM
1431
Davidson Kempner Capital Management
New York
– -$7.99M -115,000 Closed
MCM
1432
Moore Capital Management
New York
– -$6.95M -100,000 Closed
BFG
1433
Berger Financial Group
Minnesota
– -$6.47M -93,176 Closed
RCW
1434
Rheos Capital Works
Japan
– -$5.54M -79,700 Closed
FHB
1435
First Hawaiian Bank
Hawaii
– -$4.38M -63,048 Closed
PD
1436
Point72 (DIFC)
United Arab Emirates
– -$4.33M -62,355 Closed
Walleye Trading
1437
Walleye Trading
New York
– -$4.31M -61,988 Closed
NICM
1438
Neo Ivy Capital Management
New York
– -$3.71M -53,466 Closed
PCMH
1439
Polymer Capital Management (HK)
Hong Kong
– -$3.27M -47,100 Closed
AIM
1440
Aigen Investment Management
New York
– -$3.14M -45,277 Closed
IMC Chicago
1441
IMC Chicago
Illinois
– -$3.07M -44,175 Closed
SM
1442
Sciencast Management
New Jersey
– -$3.04M -43,741 Closed
BCM
1443
Bayesian Capital Management
New York
– -$3.03M -43,600 Closed
SI
1444
Symmetry Investments
Jersey
– -$2.97M -42,700 Closed
NRD
1445
Nebula Research & Development
New York
– -$2.4M -34,598 Closed
GP
1446
Gallo Partners
New Jersey
– -$2.26M -32,563 Closed
YIH
1447
Y-Intercept (HK)
Hong Kong
– -$2.18M -31,369 Closed
1C
1448
111 Capital
France
– -$2.1M -30,273 Closed
JSC
1449
Jackson Square Capital
California
– -$2.08M -30,018 Closed
WAM
1450
Weiss Asset Management
Massachusetts
– -$2.02M -29,041 Closed
56 57
58
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