TMO icon

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
ICP
301
Ilex Capital Partners
United Kingdom
$45.2M
AC
302
Armistice Capital
New York
$45M
FAF
303
Fjarde Ap-fonden
Sweden
$44.9M
MFIM
304
Mesirow Financial Investment Management
Illinois
$44.4M
CIM
305
Confluence Investment Management
Missouri
$44.3M
MT
306
Midwest Trust
Kansas
$44.3M
SAM
307
Silvercrest Asset Management
New York
$44.3M
BS
308
Banco Santander
Spain
$44.2M
CIS
309
Capital International Sarl
California
$43.9M
WF
310
Welch & Forbes
Massachusetts
$43.7M
CS
311
Cannell & Spears
New York
$43.5M
BTCPP
312
Border to Coast Pensions Partnership
United Kingdom
$43.4M
ZIC
313
ZWJ Investment Counsel
Georgia
$43.2M
MIM
314
MetLife Investment Management
New Jersey
$43.2M
COPPSERS
315
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$43M
Mirae Asset Global Investments
316
Mirae Asset Global Investments
South Korea
$42.8M
AG
317
AIA Group
Hong Kong
$42.6M
Osaic Holdings
318
Osaic Holdings
Arizona
$42.5M
TAM
319
Tocqueville Asset Management
New York
$41.9M
CII
320
Capital International Inc
California
$41.2M
MAM
321
Magellan Asset Management
Australia
$40.9M
WA
322
WestEnd Advisors
North Carolina
$40.6M
AP
323
Americana Partners
Texas
$40.2M
NIM
324
Northeast Investment Management
Massachusetts
$40.2M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
325
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$39.8M