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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
Fisher Asset Management
1251
Fisher Asset Management
Washington
$520K +$2.85K +26 +0.6%
OIA
1252
Optimum Investment Advisors
Illinois
$520K – – –
NL
1253
NWAM LLC
Washington
$519K -$74.3K -677 -14%
PHAM
1254
Palisades Hudson Asset Management
Florida
$515K – – –
GPWM
1255
Grant Private Wealth Management
California
$515K +$457K +4,161 New
LWM
1256
LeConte Wealth Management
Tennessee
$514K +$13.1K +119 +3%
CCAL
1257
City Center Advisors LLC
Michigan
$513K -$81.2K -740 -15%
MAWA
1258
Moss Adams Wealth Advisors
Washington
$512K +$14K +128 +3%
LCGC
1259
Legacy Capital Group California
California
$509K +$452K +4,117 New
HIA
1260
Harbor Investment Advisory
Maryland
$507K +$6.8K +62 +2%
SIA
1261
Soltis Investment Advisors
Utah
$507K +$110K +999 +32%
MSWM
1262
McGlone Suttner Wealth Management
Wisconsin
$505K +$111K +1,015 +33%
MWM
1263
MGB Wealth Management
Texas
$504K – – –
JTWM
1264
Jackson Thornton Wealth Management
Alabama
$503K +$196K +1,783 +80%
ICP
1265
Interchange Capital Partners
Pennsylvania
$499K +$141K +1,282 +47%
VCM
1266
Versant Capital Management
Arizona
$498K +$23.8K +217 +6%
PFBT
1267
Parkside Financial Bank & Trust
Missouri
$498K +$7.02K +64 +2%
DW30
1268
Drucker Wealth 3.0
New Jersey
$498K +$92.4K +842 +26%
KIC
1269
Keating Investment Counselors
Florida
$495K – – –
SHFA
1270
SS&H Financial Advisors
Michigan
$495K – – –
AWA
1271
Arete Wealth Advisors
Illinois
$495K +$55.1K +502 +14%
RIL
1272
Rothschild Investment LLC
Illinois
$495K +$163K +1,482 +59%
FFA
1273
Fragasso Financial Advisors
Pennsylvania
$491K -$1.43K -13 -0.3%
BWM
1274
Blossom Wealth Management
California
$483K -$1.1K -10 -0.3%
FIA
1275
Foundations Investment Advisors
Arizona
$483K +$429K +3,907 New
49 50
51
52 53

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.