APH icon

Amphenol
APH

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 %
DS
201
Dudley & Shanley
Florida
$28.8M -$656 -10 -0%
Rockefeller Capital Management
202
Rockefeller Capital Management
New York
$28.6M +$9.26M +141,247 +48%
SOMRS
203
State of Michigan Retirement System
Michigan
$28.4M +$91.8K +1,400 +0.3%
UH
204
Unigestion Holding
Switzerland
$27.7M -$3.28M -50,050 -11%
KK
205
KLP Kapitalforvaltning
Norway
$27M +$316K +4,800 +1%
MTC
206
McDaniel Terry & Co
Texas
$26.9M -$165K -2,512 -0.6%
Macquarie Group
207
Macquarie Group
Australia
$26.8M +$10.4M +158,189 +63%
State of New Jersey Common Pension Fund D
208
State of New Jersey Common Pension Fund D
New Jersey
$26.7M -$2.44M -37,234 -8%
MVIP
209
Mar Vista Investment Partners
California
$26.2M -$11.9M -180,811 -31%
FMI
210
Factory Mutual Insurance
Massachusetts
$25.8M +$2.69M +41,000 +12%
FMII
211
Farmers & Merchants Investments Inc
Nebraska
$25.7M -$1.41M -21,554 -5%
LP
212
LMR Partners
United Kingdom
$25.6M -$14.2M -216,168 -36%
NPPM
213
North Point Portfolio Managers
Ohio
$25.4M +$32.7K +499 +0.1%
Jane Street
214
Jane Street
New York
$25.4M +$12.2M +186,679 +93%
DP
215
Dearborn Partners
Illinois
$24.7M -$5.04M -76,766 -17%
Nomura Asset Management
216
Nomura Asset Management
Japan
$24.4M +$1.18M +18,011 +5%
Brown Advisory
217
Brown Advisory
Maryland
$24.1M +$290K +4,429 +1%
SO
218
STRS Ohio
Ohio
$23.8M -$834K -12,721 -3%
RMC
219
Resources Management Corp
Connecticut
$23.8M +$5.9K +90 +0%
JA
220
JLB & Associates
Michigan
$23.8M -$714K -10,891 -3%
ASRS
221
Arizona State Retirement System
Arizona
$23.7M +$902K +13,756 +4%
Millennium Management
222
Millennium Management
New York
$23.7M -$102M -1,549,218 -81%
FT
223
Fiduciary Trust
Massachusetts
$23.2M +$1.59M +24,227 +7%
CAM
224
Cresset Asset Management
Illinois
$23M -$211K -3,216 -0.9%
Comerica Bank
225
Comerica Bank
Texas
$23M -$2.08M -31,697 -8%
7 8
9
10 11