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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
MK
1226
MASTERINVEST Kapitalanlage
$558K -$50.1K -457 -9%
CCI
1227
Credit Capital Investments
New Jersey
$557K +$494K +4,500 New
ACM
1228
Allred Capital Management
Texas
$556K +$83.7K +763 +20%
RDWM
1229
Red Door Wealth Management
Tennessee
$553K +$490K +4,466 New
DTL
1230
Dynamic Technology Lab
Singapore
$551K +$77.7K +708 +19%
LA
1231
LVW Advisors
New York
$551K +$101K +916 +26%
VC
1232
Vicus Capital
Pennsylvania
$551K +$488K +4,449 New
OAM
1233
Ostrum Asset Management
France
$548K +$286K +2,608 +143%
NLWP
1234
Next Level Wealth Planning
Idaho
$548K +$2.74K +25 +0.6%
GFP
1235
Gryphon Financial Partners
Ohio
$547K +$58.4K +532 +14%
GGI
1236
Godsey & Gibb Inc
Virginia
$545K – – –
OWA
1237
Outlook Wealth Advisors
Texas
$543K -$212K -1,929 -31%
BC
1238
Bayforest Capital
United Kingdom
$540K +$479K +4,362 New
TA
1239
TruWealth Advisors
Louisiana
$539K +$478K +4,359 New
PWMAG
1240
Pinnacle Wealth Management Advisory Group
New Jersey
$537K +$1.32K +12 +0.3%
LJAC
1241
L.J. Altfest & Co
New York
$534K -$548K -4,991 -54%
SFB
1242
STAR Financial Bank
Indiana
$533K +$473K +4,307 New
BAM
1243
Belpointe Asset Management
Nevada
$533K +$179K +1,632 +61%
RSWM
1244
Robertson Stephens Wealth Management
California
$531K -$14.7K -134 -3%
A
1245
AlphaQuest
New York
$529K +$469K +4,275 New
DWP
1246
Daymark Wealth Partners
Ohio
$528K +$150K +1,369 +47%
FFG
1247
Fiduciary Financial Group
California
$528K -$25.7K -234 -5%
TWP
1248
Tower Wealth Partners
Pennsylvania
$526K +$9.44K +86 +2%
PCP
1249
Proficio Capital Partners
Massachusetts
$523K -$1.06M -9,688 -70%
CGL
1250
Clarius Group LLC
Washington
$522K -$276K -2,511 -37%
48 49
50
51 52

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.