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Amphenol

1,826 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 283 funds opening new positions, 721 increasing their positions, 621 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

233% more first-time investments, than exits

New positions opened: 283 | Existing positions closed: 85

42% more call options, than puts

Call options by funds: $764M | Put options by funds: $539M

23% more capital invested

Capital invested by funds: $115B → $141B (+$26.4B)

19% more funds holding in top 10

Funds holding in top 10: 7893 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,6461,826 (+180)

2.83% less ownership

Funds ownership: 96.18%93.35% (-2.8%)

Holders
1,826
Holders Change
+180
Holders Change %
+10.94%
% of All Funds
23.97%
Holding in Top 10
93
Holding in Top 10 Change
+15
Holding in Top 10 Change %
+19.23%
% of All Funds
1.22%
New
283
Increased
721
Reduced
621
Closed
85
Calls
$764M
Puts
$539M
Net Calls
+$225M
Net Calls Change
+$60.9M
Name Holding Trade Value Shares
Change
Change in
Stake
SO
201
STRS Ohio
Ohio
$68.4M +$21M +191,243 +53%
AIM
202
Avity Investment Management
Connecticut
$68.3M -$10.6M -96,522 -15%
GAM
203
Guinness Asset Management
United Kingdom
$67.9M -$17.9M -162,806 -22%
PCM
204
Palisade Capital Management
New Jersey
$67.9M -$9.13M -83,219 -13%
Treasurer of the State of North Carolina
205
Treasurer of the State of North Carolina
North Carolina
$67.1M -$2.32M -21,120 -4%
Asset Management One
206
Asset Management One
Japan
$65.8M +$672K +6,122 +1%
Pictet Asset Management
207
Pictet Asset Management
Switzerland
$64.5M -$1.61M -14,643 -3%
ZIM
208
Zacks Investment Management
Illinois
$64.2M +$10.1M +92,337 +22%
Nisa Investment Advisors
209
Nisa Investment Advisors
Missouri
$62.2M -$3.24M -29,498 -6%
FCM
210
Frontier Capital Management
Massachusetts
$61.3M -$1.18M -10,775 -2%
RMA
211
Roffman Miller Associates
Pennsylvania
$60.9M -$2.19M -19,915 -4%
MPIA
212
Mountain Pacific Investment Advisers
Idaho
$59.2M -$53M -482,808 -50%
QCM
213
Quantinno Capital Management
New York
$58.6M +$16M +145,809 +44%
MSV
214
MN Services Vermogensbeheer
Netherlands
$57.2M +$977K +8,900 +2%
Rockefeller Capital Management
215
Rockefeller Capital Management
New York
$55.7M -$2.69M -24,506 -5%
KK
216
KLP Kapitalforvaltning
Norway
$54.2M +$121K +1,100 +0.3%
CAG
217
Crestwood Advisors Group
Massachusetts
$53.7M -$1.03M -9,355 -2%
Credit Agricole
218
Credit Agricole
France
$53.6M +$47.5M +433,114 New
State of New Jersey Common Pension Fund D
219
State of New Jersey Common Pension Fund D
New Jersey
$52.9M +$2.24M +20,391 +5%
Two Sigma Advisers
220
Two Sigma Advisers
New York
$52.1M -$53.7M -489,000 -54%
State of Tennessee, Department of Treasury
221
State of Tennessee, Department of Treasury
Tennessee
$51.8M +$8M +72,910 +21%
DnB Asset Management
222
DnB Asset Management
Norway
$51.7M -$10.6M -96,945 -19%
SOMRS
223
State of Michigan Retirement System
Michigan
$51.4M +$143K +1,300 +0.3%
DZ Bank
224
DZ Bank
Germany
$51.3M -$10.1M -91,980 -18%
Rafferty Asset Management
225
Rafferty Asset Management
New York
$51.3M +$1.65M +15,006 +4%