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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
CIP
301
Cornerstone Investment Partners
Georgia
$45.4M
ICP
302
Ilex Capital Partners
United Kingdom
$45.2M
AC
303
Armistice Capital
New York
$45M
FAF
304
Fjarde Ap-fonden
Sweden
$44.9M
MFIM
305
Mesirow Financial Investment Management
Illinois
$44.4M
CIM
306
Confluence Investment Management
Missouri
$44.3M
MT
307
Midwest Trust
Kansas
$44.3M
SAM
308
Silvercrest Asset Management
New York
$44.3M
BS
309
Banco Santander
Spain
$44.2M
CIS
310
Capital International Sarl
California
$43.9M
WF
311
Welch & Forbes
Massachusetts
$43.7M
CS
312
Cannell & Spears
New York
$43.5M
BTCPP
313
Border to Coast Pensions Partnership
United Kingdom
$43.4M
ZIC
314
ZWJ Investment Counsel
Georgia
$43.2M
MIM
315
MetLife Investment Management
New Jersey
$43.2M
COPPSERS
316
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$43M
Mirae Asset Global Investments
317
Mirae Asset Global Investments
South Korea
$42.8M
AG
318
AIA Group
Hong Kong
$42.6M
Osaic Holdings
319
Osaic Holdings
Arizona
$42.5M
GT
320
Glenmede Trust
Pennsylvania
$42.1M
TAM
321
Tocqueville Asset Management
New York
$41.9M
CII
322
Capital International Inc
California
$41.2M
MAM
323
Magellan Asset Management
Australia
$40.9M
WA
324
WestEnd Advisors
North Carolina
$40.6M
HC
325
Henshaw Capital
Massachusetts
$40.6M