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Amphenol

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: 7893 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,6461,826 (+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
Name Holding Trade Value Shares
Change
Change in
Stake
Bank Julius Baer & Co
76
Bank Julius Baer & Co
Switzerland
$259M -$2.9M -26,383 -1%
Millennium Management
77
Millennium Management
New York
$256M -$38.6M -352,152 -15%
FAM
78
Fenimore Asset Management
New York
$254M -$26M -237,161 -10%
D.E. Shaw & Co
79
D.E. Shaw & Co
New York
$254M -$265M -2,418,745 -54%
TD Asset Management
80
TD Asset Management
Ontario, Canada
$246M -$109M -990,935 -33%
Mackenzie Financial
81
Mackenzie Financial
Ontario, Canada
$243M -$157M -1,427,120 -42%
Bank of Montreal
82
Bank of Montreal
Ontario, Canada
$241M +$870K +7,931 +0.4%
Ameriprise
83
Ameriprise
Minnesota
$239M +$20.7M +188,625 +10%
California State Teachers Retirement System (CalSTRS)
84
California State Teachers Retirement System (CalSTRS)
California
$239M +$1.94M +17,649 +0.9%
BAMCO Inc
85
BAMCO Inc
New York
$234M +$54.9K +500 +0%
JHP
86
James Hambro & Partners
United Kingdom
$225M -$20.2M -184,418 -9%
1832 Asset Management
87
1832 Asset Management
Ontario, Canada
$222M -$1.28M -11,703 -0.6%
HF
88
HRT Financial
New York
$218M +$191M +1,745,058 +9,997%
MIM
89
Meridiem Investment Management
United Kingdom
$217M -$40.9M -372,277 -17%
SFFS
90
Stonehage Fleming Financial Services
Jersey
$216M -$59.1M -538,502 -24%
Lord, Abbett & Co
91
Lord, Abbett & Co
New Jersey
$207M -$25.1M -228,831 -12%
Voloridge Investment Management
92
Voloridge Investment Management
Florida
$203M -$116M -1,055,051 -39%
A
93
AustralianSuper
Australia
$198M +$88.7M +808,578 +103%
New York State Common Retirement Fund
94
New York State Common Retirement Fund
New York
$198M -$1.56M -14,222 -0.9%
Qube Research & Technologies (QRT)
95
Qube Research & Technologies (QRT)
United Kingdom
$196M +$149M +1,354,245 +596%
MC
96
Maren Capital
Illinois
$192M -$15.4M -140,552 -8%
GIM
97
Glenmede Investment Management
Pennsylvania
$188M -$10.4M -94,992 -6%
ACP
98
Atalan Capital Partners
New York
$184M -$12.3M -112,000 -7%
Public Employees Retirement Association of Colorado
99
Public Employees Retirement Association of Colorado
Colorado
$184M -$38.3M -349,156 -19%
Cerity Partners
100
Cerity Partners
New York
$184M +$217K +1,982 +0.1%