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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
BIM
226
Bridges Investment Management
Nebraska
$68.6M
Calamos Advisors
227
Calamos Advisors
Illinois
$68.4M
SL
228
Summitry LLC
California
$68.3M
Renaissance Technologies
229
Renaissance Technologies
New York
$68.3M
LF
230
Lansforsakringar Fondforvaltning
Sweden
$68M
State of Tennessee, Department of Treasury
231
State of Tennessee, Department of Treasury
Tennessee
$67.8M
T. Rowe Price Investment Management
232
T. Rowe Price Investment Management
Maryland
$67.2M
CBUSF
233
Construction & Building Unions Superannuation Fund
Australia
$66.8M
SG Americas Securities
234
SG Americas Securities
New York
$66.7M
FDCDDQ
235
Federation des caisses Desjardins du Quebec
Quebec, Canada
$66.7M
Teacher Retirement System of Texas
236
Teacher Retirement System of Texas
Texas
$66.3M
WT
237
Whittier Trust
California
$66.2M
NSCM
238
New South Capital Management
Tennessee
$66M
RBI
239
Raiffeisen Bank International
Austria
$66M
TI
240
Tidal Investments
Wisconsin
$65.7M
Mariner
241
Mariner
Kansas
$65.7M
UM
242
UniSuper Management
Australia
$65.6M
ZIG
243
Zurich Insurance Group
Switzerland
$65.4M
TLP
244
Tri Locum Partners
New York
$65.1M
SI
245
Scharf Investments
California
$65.1M
TAF
246
Tredje AP-fonden
Sweden
$65.1M
RS
247
Robeco Schweiz
Switzerland
$64.2M
Creative Planning
248
Creative Planning
Kansas
$63.6M
State of New Jersey Common Pension Fund D
249
State of New Jersey Common Pension Fund D
New Jersey
$63.5M
BGCP
250
Bristol Gate Capital Partners
Ontario, Canada
$63.4M