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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 %
DCM
1226
Davis Capital Management
Florida
$90.5K – – –
TIM
1227
Tortoise Investment Management
New York
$90.3K – – –
CIAS
1228
CBIZ Investment Advisory Services
Ohio
$87.1K +$10.5K +160 +14%
BCM
1229
Berbice Capital Management
New York
$85.3K +$6.56K +100 +8%
FAM
1230
Flaharty Asset Management
Florida
$85.3K +$85.3K +1,300 New
CHC
1231
City Holding Co
West Virginia
$83.4K +$20.5K +312 +33%
WA
1232
WPG Advisers
Maryland
$80.9K -$22.7K -346 -22%
PWAM
1233
Private Wealth Asset Management
Iowa
$80.9K +$80.9K +1,234 New
UFF
1234
USA Financial Formulas
Michigan
$79.9K -$7.74K -118 -9%
MA
1235
MCF Advisors
Kentucky
$78.9K -$3.35K -51 -4%
KSB
1236
Kennebec Savings Bank
Maine
$78.7K – – –
WB
1237
Webster Bank
Connecticut
$78.7K – – –
CAM
1238
Close Asset Management
United Kingdom
$78K +$51.1K +775 +190%
BBHC
1239
Brown Brothers Harriman & Co
New York
$76.7K +$1.05K +16 +1%
LI
1240
LRI Investments
Florida
$75.7K -$26.9K -411 -26%
FFO
1241
Fortitude Family Office
Arizona
$74.6K – – –
CTC
1242
Central Trust Company
Missouri
$68.7K -$1.31K -20 -2%
AGWCA
1243
Annis Gardner Whiting Capital Advisors
Florida
$66.3K -$3.03K -46 -4%
KTC
1244
Kentucky Trust Company
Kentucky
$66.3K +$54.8K +835 +474%
AIM
1245
Arcadia Investment Management
Michigan
$65.6K – – –
SSG
1246
Summit Securities Group
New York
$64K +$64K +975 New
WW
1247
Winnow Wealth
Texas
$62.2K +$656 +10 +1%
OIAM
1248
OFI Invest Asset Management
France
$62K +$22.3K +367 +56%
BGAI
1249
Bruce G. Allen Investments
Colorado
$62K +$39.4K +601 +175%
BI
1250
Binnacle Investments
Iowa
$58K +$58K +885 New
48 49
50
51 52