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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
AIM
51
Alphinity Investment Management
Australia
$441M -$205M -1,869,256 -34%
Swiss National Bank
52
Swiss National Bank
Switzerland
$431M -$19.9M -181,400 -5%
Natixis Advisors
53
Natixis Advisors
Massachusetts
$417M +$33.9M +308,548 +10%
National Pension Service
54
National Pension Service
South Korea
$415M +$8.38M +76,358 +2%
Allianz Asset Management
55
Allianz Asset Management
Germany
$392M -$82.1M -748,482 -19%
LPC
56
Lone Pine Capital
Connecticut
$374M +$332M +3,023,231 New
AI
57
Axiom Investors
Connecticut
$368M +$326M +2,971,135 New
RG
58
Rathbones Group
United Kingdom
$367M -$34.5M -314,695 -10%
Holocene Advisors
59
Holocene Advisors
New York
$359M -$106M -967,425 -25%
CIBC Private Wealth Group
60
CIBC Private Wealth Group
Georgia
$358M -$3.13M -28,492 -1%
LPPI
61
Local Pensions Partnership Investment
United Kingdom
$350M -$22.5M -205,400 -7%
Raymond James Financial
62
Raymond James Financial
Florida
$341M +$23.5M +214,404 +8%
William Blair & Company
63
William Blair & Company
Illinois
$340M -$24.1M -219,934 -7%
AM
64
AGF Management
Ontario, Canada
$340M -$5.18M -47,247 -2%
Principal Financial Group
65
Principal Financial Group
Iowa
$332M -$6.73M -61,340 -2%
Los Angeles Capital Management
66
Los Angeles Capital Management
California
$321M +$93.9M +855,784 +49%
Mitsubishi UFJ Asset Management
67
Mitsubishi UFJ Asset Management
Japan
$313M +$14.3M +130,211 +5%
SEI Investments
68
SEI Investments
Pennsylvania
$304M +$146M +1,327,659 +117%
HSBC Holdings
69
HSBC Holdings
United Kingdom
$302M +$58.9M +536,842 +28%
MAM
70
Madison Asset Management
Wisconsin
$302M -$3.91M -35,617 -1%
American Century Companies
71
American Century Companies
Missouri
$297M -$982K -8,952 -0.4%
RhumbLine Advisers
72
RhumbLine Advisers
Massachusetts
$294M -$7.4M -67,482 -3%
Jennison Associates
73
Jennison Associates
New York
$288M +$255M +2,326,847 New
Citadel Advisors
74
Citadel Advisors
Florida
$273M -$5.03M -45,881 -2%
Kayne Anderson Rudnick Investment Management
75
Kayne Anderson Rudnick Investment Management
California
$262M -$49.1M -447,750 -17%