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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 %
Cetera Investment Advisers
301
Cetera Investment Advisers
Illinois
$13.4M +$1.45M +22,121 +12%
M
302
MOTCO
Texas
$13.3M +$48.5K +739 +0.4%
AC
303
Addenda Capital
Quebec, Canada
$13.2M +$1.75M +26,625 +15%
CTA
304
Chesley Taft & Associates
Illinois
$13.2M -$59.2K -902 -0.4%
FAM
305
Fred Alger Management
New York
$13M -$97.8K -1,487 -0.7%
LOM
306
LTS One Management
New York
$13M -$492K -7,500 -4%
MOACM
307
Mutual of America Capital Management
New York
$12.9M -$305K -4,654 -2%
URS
308
Utah Retirement Systems
Utah
$12.8M -$24.4K -372 -0.2%
BS
309
Banco Santander
Spain
$12.6M +$12.6M +192,099 New
LWM
310
Lyell Wealth Management
California
$12.5M +$1.44M +22,012 +13%
Public Sector Pension Investment Board (PSP Investments)
311
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$12.4M -$8.08M -123,124 -40%
First Manhattan
312
First Manhattan
New York
$12.3M +$10.8M +164,986 +766%
VPIM
313
Vanguard Personalized Indexing Management
California
$12.2M +$751K +11,455 +7%
OA
314
Oak Associates
Ohio
$12.2M – – –
CF
315
Covea Finance
France
$12.2M -$15.3M -234,006 -56%
Pathstone Holdings
316
Pathstone Holdings
New Jersey
$12M +$602K +9,164 +5%
PA
317
Perennial Advisors
New York
$11.9M -$106K -1,610 -0.9%
BPIM
318
Brant Point Investment Management
New York
$11.8M -$59.9K -914 -0.5%
GAM
319
Gotham Asset Management
New York
$11.8M +$2.7M +41,127 +30%
AAM
320
Advisors Asset Management
Colorado
$11.8M +$3.41M +52,027 +41%
ZCI
321
Zevenbergen Capital Investments
Washington
$11.5M +$325K +4,950 +3%
CWM
322
Cabot Wealth Management
Massachusetts
$11.5M +$2.76M +42,044 +32%
BAMF
323
BI Asset Management Fondsmaeglerselskab
Denmark
$11.4M +$3.28M +49,968 +41%
N
324
Natixis
France
$11.3M -$3.33M -51,120 -23%
CB
325
Commerce Bank
Missouri
$11.3M +$193K +2,935 +2%
11 12
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