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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
RMC
251
Resources Management Corp
Connecticut
$41.3M -$2.11M -19,222 -5%
FT
252
Fiduciary Trust
Massachusetts
$40.8M -$1.13M -10,325 -3%
Comerica Bank
253
Comerica Bank
Texas
$40.6M -$922K -8,404 -2%
DP
254
Dearborn Partners
Illinois
$40.5M -$480K -4,377 -1%
Cetera Investment Advisers
255
Cetera Investment Advisers
Illinois
$40.3M +$11.3M +103,116 +46%
MIM
256
Manitou Investment Management
Ontario, Canada
$40.1M -$633K -5,773 -2%
GAM
257
Gotham Asset Management
New York
$39.5M +$13.5M +123,450 +63%
FAF
258
Fjarde Ap-fonden
Sweden
$39.2M -$447K -4,075 -1%
DS
259
Dudley & Shanley
Florida
$39.2M -$12.2M -111,404 -26%
SMDAM
260
Sumitomo Mitsui DS Asset Management
Japan
$39M +$5.64M +51,429 +19%
FAF
261
Första AP-fonden
Sweden
$38.7M +$1.57M +14,300 +5%
JA
262
JLB & Associates
Michigan
$38.6M -$1.95M -17,782 -5%
Jones Financial Companies
263
Jones Financial Companies
Missouri
$38.5M +$6.35M +57,846 +23%
NPPM
264
North Point Portfolio Managers
Ohio
$38.5M -$625K -5,694 -2%
CNB
265
Czech National Bank
Czech Republic
$38.4M +$1.58M +14,419 +5%
FFM
266
FengHe Fund Management
Singapore
$38.2M +$20.3M +185,300 +150%
Calamos Advisors
267
Calamos Advisors
Illinois
$38M +$45K +410 +0.1%
SLAM
268
Swiss Life Asset Management
$37M +$3.84M +35,037 +13%
SSA
269
South Street Advisors
New York
$36.9M -$4.09M -37,239 -11%
MSR
270
Main Street Research
Connecticut
$36.8M +$32.6M +297,311 New
GI
271
Gradient Investments
Minnesota
$36.5M +$781K +7,116 +2%
COPPSERS
272
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$36.3M -$381K -3,473 -1%
CIBC World Market
273
CIBC World Market
Ontario, Canada
$36.1M +$4.72M +42,987 +17%
Jane Street
274
Jane Street
New York
$36.1M -$165M -1,504,522 -84%
NAM
275
NorthCrest Asset Manangement
Minnesota
$35.8M +$331K +3,016 +1%