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Thermo Fisher Scientific

2,584 hedge funds and large institutions have $164B invested in Thermo Fisher Scientific in 2026 Q1 according to their latest regulatory filings, with 167 funds opening new positions, 970 increasing their positions, 1,094 reducing their positions, and 231 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 (-$66.9B)

33% less funds holding in top 10

Funds holding in top 10: 11376 (-37)

Holders
2,584
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
$903M
Puts
$1.26B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
HL
226
Harding Loevner
New Jersey
$68.7M
BIM
227
Bridges Investment Management
Nebraska
$68.6M
SL
228
Summitry LLC
California
$68.4M
Calamos Advisors
229
Calamos Advisors
Illinois
$68.4M
Renaissance Technologies
230
Renaissance Technologies
New York
$68.3M
LF
231
Lansforsakringar Fondforvaltning
Sweden
$68M
State of Tennessee, Department of Treasury
232
State of Tennessee, Department of Treasury
Tennessee
$67.8M
T. Rowe Price Investment Management
233
T. Rowe Price Investment Management
Maryland
$67.2M
CBUSF
234
Construction & Building Unions Superannuation Fund
Australia
$66.8M
SG Americas Securities
235
SG Americas Securities
New York
$66.7M
FDCDDQ
236
Federation des caisses Desjardins du Quebec
Quebec, Canada
$66.7M
Teacher Retirement System of Texas
237
Teacher Retirement System of Texas
Texas
$66.3M
WT
238
Whittier Trust
California
$66.2M
NSCM
239
New South Capital Management
Tennessee
$66M
RBI
240
Raiffeisen Bank International
Austria
$66M
TI
241
Tidal Investments
Wisconsin
$65.7M
Mariner
242
Mariner
Kansas
$65.7M
UM
243
UniSuper Management
Australia
$65.6M
ZIG
244
Zurich Insurance Group
Switzerland
$65.4M
TLP
245
Tri Locum Partners
New York
$65.1M
SI
246
Scharf Investments
California
$65.1M
TAF
247
Tredje AP-fonden
Sweden
$65.1M
RS
248
Robeco Schweiz
Switzerland
$64.2M
Creative Planning
249
Creative Planning
Kansas
$63.6M
State of New Jersey Common Pension Fund D
250
State of New Jersey Common Pension Fund D
New Jersey
$63.5M