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Thermo Fisher Scientific

2,558 hedge funds and large institutions have $164B invested in Thermo Fisher Scientific in 2026 Q1 according to their latest regulatory filings, with 166 funds opening new positions, 961 increasing their positions, 1,079 reducing their positions, and 228 closing their positions.

New
Increased
Maintained
Reduced
Closed

less funds holding

Funds holding:

less ownership

Funds ownership:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less first-time investments, than exits

New positions opened: | Existing positions closed:

28% less call options, than puts

Call options by funds: $903M | Put options by funds: $1.26B

29% less capital invested

Capital invested by funds: $231B → $164B (-$67.1B)

33% less funds holding in top 10

Funds holding in top 10: 11275 (-37)

Holders
2,558
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
75
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$903M
Puts
$1.26B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Balyasny Asset Management
101
Balyasny Asset Management
Illinois
$273M
Natixis Advisors
102
Natixis Advisors
Massachusetts
$270M
Adage Capital Partners
103
Adage Capital Partners
Massachusetts
$268M
LWCFA
104
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$264M
Fidelity International
105
Fidelity International
Bermuda
$261M
Ensign Peak Advisors
106
Ensign Peak Advisors
Utah
$254M
Royal London Asset Management
107
Royal London Asset Management
United Kingdom
$250M
Jones Financial Companies
108
Jones Financial Companies
Missouri
$240M
TD Asset Management
109
TD Asset Management
Ontario, Canada
$236M
Marshall Wace
110
Marshall Wace
United Kingdom
$235M
VLKIM
111
Van Lanschot Kempen Investment Management
Netherlands
$217M
MIM
112
Meridiem Investment Management
United Kingdom
$216M
New York State Common Retirement Fund
113
New York State Common Retirement Fund
New York
$212M
CI Investments Inc
114
CI Investments Inc
Ontario, Canada
$210M
Rockefeller Capital Management
115
Rockefeller Capital Management
New York
$210M
OAC
116
OMERS Administration Corp
Ontario, Canada
$210M
Fifth Third Bancorp
117
Fifth Third Bancorp
Ohio
$206M
Allianz Asset Management
118
Allianz Asset Management
Germany
$206M
Aberdeen Group
119
Aberdeen Group
United Kingdom
$205M
ECSS
120
Eurizon Capital SGR SpA
$205M
American Century Companies
121
American Century Companies
Missouri
$204M
RPI
122
Railway Pension Investments
United Kingdom
$201M
SCA
123
Southpoint Capital Advisors
New York
$197M
Aviva
124
Aviva
United Kingdom
$189M
MGP
125
M&G plc
United Kingdom
$185M