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Amphenol

1,631 hedge funds and large institutions have $114B invested in Amphenol in 2025 Q2 according to their latest regulatory filings, with 326 funds opening new positions, 550 increasing their positions, 567 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more call options, than puts

Call options by funds: $ | Put options by funds: $

16% more funds holding

Funds holding: 1,4101,631 (+221)

2.38% more ownership

Funds ownership: 93.35%95.73% (+2.4%)

3% less repeat investments, than reductions

Existing positions increased: 550 | Existing positions reduced: 567

Holders
1,631
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
76
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$537M
Puts
$373M
Net Calls
Net Calls Change

Top Buyers

1 +$743M
2 +$536M
3 +$492M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$368M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$333M
Name Holding Trade Value Shares
Change
Change in
Stake
Capital International Investors
51
Capital International Investors
California
$325M
RG
52
Rathbones Group
United Kingdom
$324M
National Pension Service
53
National Pension Service
South Korea
$324M
ECU
54
Egerton Capital (UK)
United Kingdom
$313M
AQR Capital Management
55
AQR Capital Management
Connecticut
$302M
Natixis Advisors
56
Natixis Advisors
Massachusetts
$302M
TD Asset Management
57
TD Asset Management
Ontario, Canada
$294M
William Blair & Company
58
William Blair & Company
Illinois
$293M
CIBC Private Wealth Group
59
CIBC Private Wealth Group
Georgia
$289M
Vontobel Holding
60
Vontobel Holding
Switzerland
$278M
AM
61
AGF Management
Ontario, Canada
$276M
Principal Financial Group
62
Principal Financial Group
Iowa
$271M
Voloridge Investment Management
63
Voloridge Investment Management
Florida
$266M
Alkeon Capital Management
64
Alkeon Capital Management
New York
$264M
JIM
65
Jensen Investment Management
Oregon
$258M
Kayne Anderson Rudnick Investment Management
66
Kayne Anderson Rudnick Investment Management
California
$253M
Raymond James Financial
67
Raymond James Financial
Florida
$251M
MAM
68
Madison Asset Management
Wisconsin
$245M
RhumbLine Advisers
69
RhumbLine Advisers
Massachusetts
$241M
Millennium Management
70
Millennium Management
New York
$239M
American Century Companies
71
American Century Companies
Missouri
$238M
Mitsubishi UFJ Asset Management
72
Mitsubishi UFJ Asset Management
Japan
$237M
FAM
73
Fenimore Asset Management
New York
$226M
SFFS
74
Stonehage Fleming Financial Services
Jersey
$226M
Citadel Advisors
75
Citadel Advisors
Florida
$223M