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Amphenol

1,646 hedge funds and large institutions have $115B invested in Amphenol in 2025 Q2 according to their latest regulatory filings, with 327 funds opening new positions, 556 increasing their positions, 572 reducing their positions, and 89 closing their positions.

New
Increased
Maintained
Reduced
Closed

267% more first-time investments, than exits

New positions opened: 327 | Existing positions closed: 89

63% more funds holding in top 10

Funds holding in top 10: 4878 (+30)

51% more capital invested

Capital invested by funds: $75.8B → $115B (+$38.8B)

44% more call options, than puts

Call options by funds: $537M | Put options by funds: $373M

16% more funds holding

Funds holding: 1,4241,646 (+222)

0.73% more ownership

Funds ownership: 95.45%96.18% (+0.73%)

3% less repeat investments, than reductions

Existing positions increased: 556 | Existing positions reduced: 572

Holders
1,646
Holders Change
+222
Holders Change %
+15.59%
% of All Funds
21.67%
Holding in Top 10
78
Holding in Top 10 Change
+30
Holding in Top 10 Change %
+62.5%
% of All Funds
1.03%
New
327
Increased
556
Reduced
572
Closed
89
Calls
$537M
Puts
$373M
Net Calls
+$164M
Net Calls Change
+$84.9M
Name Holding Trade Value Shares
Change
Change in
Stake
Twin Tree Management
201
Twin Tree Management
Texas
$54.9M +$41.8M +511,680 +1,155%
LCM
202
Logan Capital Management
Pennsylvania
$53.9M -$2.17M -26,489 -5%
NB
203
Norinchukin Bank
Japan
$53.3M -$12.3M -150,073 -22%
KBC Group
204
KBC Group
Belgium
$53.1M +$1.05M +12,785 +2%
Pictet Asset Management
205
Pictet Asset Management
Switzerland
$52.9M -$792K -9,681 -2%
Nisa Investment Advisors
206
Nisa Investment Advisors
Missouri
$52.6M +$4.67M +57,043 +12%
Asset Management One
207
Asset Management One
Japan
$51.9M -$504K -6,160 -1%
O
208
Ossiam
France
$51.5M +$38.6M +471,833 +957%
GCM
209
Geneva Capital Management
Wisconsin
$51.1M -$8.84M -108,087 -17%
DnB Asset Management
210
DnB Asset Management
Norway
$50.9M -$6.02M -73,656 -13%
RMA
211
Roffman Miller Associates
Pennsylvania
$50.6M -$388K -4,748 -0.9%
DZ Bank
212
DZ Bank
Germany
$50M +$77K +941 +0.2%
FCM
213
Frontier Capital Management
Massachusetts
$50M -$8.49M -103,867 -17%
Rockefeller Capital Management
214
Rockefeller Capital Management
New York
$46.9M +$3.14M +38,448 +9%
MSV
215
MN Services Vermogensbeheer
Netherlands
$44.7M +$793K +9,700 +2%
CNAM
216
Campbell Newman Asset Management
Wisconsin
$44.4M +$14.6M +178,445 +66%
BHCM
217
Brevan Howard Capital Management
Jersey
$44.4M +$36.7M +449,345 New
CAG
218
Crestwood Advisors Group
Massachusetts
$43.8M -$106K -1,296 -0.3%
Tudor Investment Corp
219
Tudor Investment Corp
Connecticut
$43.2M +$35.8M +437,471 New
KK
220
KLP Kapitalforvaltning
Norway
$43.2M +$2.1M +25,700 +6%
TCM
221
TimesSquare Capital Management
New York
$42.5M -$26.6M -324,856 -43%
DS
222
Dudley & Shanley
Florida
$42.3M -$895K -10,940 -2%
ZIM
223
Zacks Investment Management
Illinois
$42.1M +$27M +329,872 +341%
MVIP
224
Mar Vista Investment Partners
California
$41.8M +$1.93M +23,563 +6%
SAM
225
Storebrand Asset Management
Norway
$41.5M -$1.77M -21,676 -5%

APH Hedge Fund Activity: Q2 2025 in Review

1,646 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Amphenol (APH) for Q2 2025, worth a combined $115B — up 51% from $75.8B a quarter earlier.

Buyers outnumbered sellers: 327 funds opened new APH positions and 89 closed out — a net gain of 238 holders — while 556 added to existing stakes and 572 trimmed.

The largest buyer was Victory Capital Management, adding an estimated $615M. The largest seller was Vanguard Group, cutting an estimated $1.18B.

  • 1,646 institutional investors held Amphenol (APH) as of Q2 2025, up from 1,424 in Q1 2025.
  • Funds reported $115B of Amphenol stock for Q2 2025, up 51% quarter-over-quarter.
  • 327 funds opened new Amphenol positions in Q2 2025 and 89 closed out, a net change of +238 holders.
  • The largest Amphenol buyer in Q2 2025 was Victory Capital Management, an estimated $615M added.
  • The largest Amphenol seller in Q2 2025 was Vanguard Group, an estimated $1.18B sold.

Based on aggregated 13F filings for Q2 2025.