We are live on ! Find out more
APH icon

Amphenol
APH

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: 78 → 93 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,646 → 1,826 (+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

Top Buyers

1
Capital International Investors
Capital International Investors
California
+$1.61B
2
Capital Research Global Investors
Capital Research Global Investors
California
+$880M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$698M
4
BlackRock
BlackRock
New York
+$690M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
+$486M

Top Sellers

1
Vanguard Group
Vanguard Group
Pennsylvania
-$1.68B
2
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$1.04B
3
Fidelity Investments
Fidelity Investments
Massachusetts
-$971M
4
Bank of New York Mellon
Bank of New York Mellon
New York
-$469M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$265M
Name Holding Trade Value Shares
Change 		Change in
Stake
MWM
801
Mission Wealth Management
California
$2.5M -$44.8K -408 -2%
PIM
802
Platinum Investment Management
Australia
$2.5M -$303K -2,762 -12%
PGAM
803
Princeton Global Asset Management
New Jersey
$2.48M +$988 +9 +0%
WAM
804
WT Asset Management
Hong Kong
$2.48M +$2.19M +20,000 New
GLAM
805
Gardner Lewis Asset Management
Pennsylvania
$2.45M -$20.8K -190 -0.9%
HWAM
806
Hennion & Walsh Asset Management
New Jersey
$2.45M +$564K +5,142 +35%
CWMK
807
Caliber Wealth Management (Kansas)
Kansas
$2.42M -$115K -1,051 -5%
BMC
808
Benin Management Corp
Connecticut
$2.4M – – –
CIP
809
Convergence Investment Partners
Florida
$2.39M +$793K +7,230 +60%
TC
810
TwinBeech Capital
New York
$2.38M -$420K -3,827 -17%
VT
811
Vise Technologies
New York
$2.38M +$266K +2,425 +14%
CIA
812
Concurrent Investment Advisors
Florida
$2.37M +$69.2K +631 +3%
CA
813
Clearstead Advisors
Ohio
$2.36M -$264K -2,404 -11%
NRW
814
Nova R Wealth
Kansas
$2.36M -$6.04K -55 -0.3%
RWM
815
Ritholtz Wealth Management
New York
$2.34M +$191K +1,742 +10%
Simplex Trading
816
Simplex Trading
Illinois
$2.34M +$1.58M +14,401 +320%
CAM
817
Cidel Asset Management
Ontario, Canada
$2.34M -$558K -5,083 -21%
AAF
818
Andra AP-fonden
Sweden
$2.34M +$2.07M +18,880 New
PDL
819
Portfolio Design Labs
California
$2.33M +$1.66M +15,110 +403%
SCM
820
SIR Capital Management
New York
$2.33M +$2.06M +18,800 New
NG
821
Novem Group
New York
$2.31M -$83.5K -761 -4%
PA
822
Paragon Advisors
Texas
$2.31M +$2.05M +18,679 New
SW
823
SteelPeak Wealth
California
$2.26M +$2M +18,255 New
DF
824
Donoghue Forlines
Massachusetts
$2.26M -$1.18M -10,760 -37%
VNA
825
Valley National Advisers
Pennsylvania
$2.26M -$1.27M -11,531 -39%
31 32
33
34 35

APH Hedge Fund Activity: Q3 2025 in Review

1,826 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Amphenol (APH) for Q3 2025, worth a combined $141B — up 23% from $115B a quarter earlier.

Buyers outnumbered sellers: 283 funds opened new APH positions and 85 closed out — a net gain of 198 holders — while 721 added to existing stakes and 621 trimmed.

The largest buyer was Capital International Investors, adding an estimated $1.61B. The largest seller was Vanguard Group, cutting an estimated $1.68B.

  • 1,826 institutional investors held Amphenol (APH) as of Q3 2025, up from 1,646 in Q2 2025.
  • Funds reported $141B of Amphenol stock for Q3 2025, up 23% quarter-over-quarter.
  • 283 funds opened new Amphenol positions in Q3 2025 and 85 closed out, a net change of +198 holders.
  • The largest Amphenol buyer in Q3 2025 was Capital International Investors, an estimated $1.61B added.
  • The largest Amphenol seller in Q3 2025 was Vanguard Group, an estimated $1.68B sold.

Based on aggregated 13F filings for Q3 2025.