Thermo Fisher Scientific Inc.

TMO

Exchange: NYSE
Industry: Measuring & Controlling Devices, NEC
SEC CIK: 0000097745

SEC filings (opens in a new tab)

In the last 90 days, Thermo Fisher Scientific Inc. insiders filed 0 open-market purchases and 11 sales; 2,628 institutions reported holding it in 13F filings for Q2 2026, worth $169.2B in total; 6 superinvestors hold it, including Viking Global Investors and D1 Capital Partners.

13F holders, Q3 2026

Institutional positions in Thermo Fisher Scientific Inc. as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 8; +1 vs. Q2 2026
Shares held: 99.6K; −7.13K (−6.7%) vs. Q2 2026
Total value: $67.2M; +$13.7M (+25.6%) vs. Q2 2026
New holders: 1; 0 more added
Sold out: 0; 5 more reduced

2,621 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TMO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding TMO and their total value by quarter
Quarter	Holders	Value
Q2 2026	2,628	$169.2B
Q1 2026	2,612	$164.1B
Q4 2025	2,708	$199.1B
Q3 2025	2,515	$160.7B
Q2 2025	2,460	$135.6B
Q1 2025	2,577	$167.8B
Q4 2024	2,625	$176.4B
Q3 2024	2,580	$208.3B
Q2 2024	2,554	$187.5B
Q1 2024	2,535	$196.3B
Q4 2023	2,496	$181.6B
Q3 2023	2,370	$173.1B
Q2 2023	2,392	$177.8B
Q1 2023	2,391	$196.1B
Q4 2022	2,379	$190.1B
Q3 2022	2,270	$175.3B
Q2 2022	2,287	$186.4B
Q1 2022	2,321	$203.3B
Q4 2021	2,347	$230.1B
Q3 2021	2,135	$197.5B
Q2 2021	2,082	$172.9B
Q1 2021	2,046	$157.2B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Thermo Fisher Scientific Inc.; share changes are against Q2 2026.

Institutions holding TMO in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Asset Management One Co.,Ltd.	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Treasurer of the State of North Carolina	–	–	–	–	Not filed
KBC Group NV	–	–	–	–	Not filed
Man Group plc	–	–	–	–	Not filed
Jefferies Financial Group Inc.	–	–	–	–	Not filed
Brown Brothers Harriman & Co	–	–	–	–	Not filed
Robeco Schweiz AG	–	–	–	–	Not filed
Vanguard Investments Australia, Ltd.	–	–	–	–	Not filed
Teacher Retirement System of Texas	–	–	–	–	Not filed
iA Global Asset Management Inc.	–	–	–	–	Not filed
Vontobel Holding Ltd.	–	–	–	–	Not filed
Pinebridge Investments LLC	–	–	–	–	Not filed
ING Groep NV	–	–	–	–	Not filed
Milford Funds Ltd	–	–	–	–	Not filed
Harding Loevner LP	–	–	–	–	Not filed
Baird Financial Group, Inc.	–	–	–	–	Not filed
La Banque Postale Asset Management SA	–	–	–	–	Not filed
Bartlett & Co. Wealth Management LLC	–	–	–	–	Not filed
Squarepoint Ops LLC	–	–	–	–	Not filed
Castle Hook Partners LP	–	–	–	–	Not filed
Millennium Management LLC	–	–	–	–	Not filed
Sound Shore Management Inc	–	–	–	–	Not filed
HM Payson & Co	–	–	–	–	Not filed
Capitolis Liquid Global Markets LLC	–	–	–	–	Not filed
Employees Retirement System of Texas	–	–	–	–	Not filed
US Bancorp	–	–	–	–	Not filed
Blair William & Co	–	–	–	–	Not filed
Nicholas Company, Inc.	–	–	–	–	Not filed
HighTower Advisors, LLC	–	–	–	–	Not filed
Cornerstone Investment Partners, LLC	–	–	–	–	Not filed
New South Capital Management Inc	–	–	–	–	Not filed
Waters Parkerson & Co., LLC	–	–	–	–	Not filed
Ilex Capital Partners (UK) LLP	–	–	–	–	Not filed
Scotia Capital Inc.	–	–	–	–	Not filed
KLP Kapitalforvaltning AS	–	–	–	–	Not filed
PFA Pension, Forsikringsaktieselskab	–	–	–	–	Not filed
Omers Administration Corp	–	–	–	–	Not filed
Skye Global Management LP	–	–	–	–	Not filed
Aviso Financial Inc.	–	–	–	–	Not filed
UniSuper Management Pty Ltd	–	–	–	–	Not filed
Public Employees Retirement System of Ohio	–	–	–	–	Not filed
Harvest Portfolios Group Inc.	–	–	–	–	Not filed
Cincinnati Insurance Co	–	–	–	–	Not filed
Raiffeisen Bank International AG	–	–	–	–	Not filed
Gotham Asset Management, LLC	–	–	–	–	Not filed
Creative Planning	–	–	–	–	Not filed
United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund	–	–	–	–	Not filed
Summitry LLC	–	–	–	–	Not filed
Lansforsakringar Fondforvaltning AB (publ)	–	–	–	–	Not filed
Allspring Global Investments Holdings, LLC	–	–	–	–	Not filed
CIBC World Markets Inc.	–	–	–	–	Not filed
Toroso Investments, LLC	–	–	–	–	Not filed
Toronto Dominion Bank	–	–	–	–	Not filed
Abn Amro Investment Solutions	–	–	–	–	Not filed
Bridges Investment Management Inc	–	–	–	–	Not filed
Formuepleje A/S	–	–	–	–	Not filed
Chilton Capital Management LLC	–	–	–	–	Not filed
Davis R M Inc	–	–	–	–	Not filed
Armistice Capital, LLC	–	–	–	–	Not filed
State of Tennessee, Treasury Department	–	–	–	–	Not filed
Northwestern Mutual Wealth Management Co	–	–	–	–	Not filed
Mariner, LLC	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Janney Montgomery Scott LLC	–	–	–	–	Not filed
Impax Asset Management Group plc	–	–	–	–	Not filed
Evelyn Partners Group Ltd	–	–	–	–	Not filed
DnB Asset Management AS	–	–	–	–	Not filed
Tredje AP-fonden	–	–	–	–	Not filed
Guyasuta Investment Advisors Inc	–	–	–	–	Not filed
Nisa Investment Advisors, LLC	–	–	–	–	Not filed
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management	–	–	–	–	Not filed
Calamos Advisors LLC	–	–	–	–	Not filed
Scharf Investments, LLC	–	–	–	–	Not filed
Caledonia Investments PLC	–	–	–	–	Not filed
Healthcare of Ontario Pension Plan Trust Fund	–	–	–	–	Not filed
Cetera Investment Advisers	–	–	–	–	Not filed
Mn Services Vermogensbeheer B.V.	–	–	–	–	Not filed
Truist Financial Corp	–	–	–	–	Not filed
Nykredit A/S	–	–	–	–	Not filed
Magellan Asset Management Ltd	–	–	–	–	Not filed
Czech National Bank	–	–	–	–	Not filed
Compass Capital Management, Inc	–	–	–	–	Not filed
Resona Asset Management Co.,Ltd.	–	–	–	–	Not filed
Silvercrest Asset Management Group LLC	–	–	–	–	Not filed
Spear Holdings RSC Ltd	–	–	–	–	Not filed
PBCay One RSC Ltd	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
Groupe la Francaise	–	–	–	–	Not filed
Snyder Capital Management L P	–	–	–	–	Not filed
AIA Group Ltd	–	–	–	–	Not filed
Senator Investment Group LP	–	–	–	–	Not filed
Westwood Holdings Group Inc.	–	–	–	–	Not filed
Dundas Partners LLP	–	–	–	–	Not filed
Spears Abacus Advisors LLC	–	–	–	–	Not filed
M&T Bank Corp	–	–	–	–	Not filed
State of Michigan Retirement System	–	–	–	–	Not filed
Mirae Asset Global Investments Co., Ltd.	–	–	–	–	Not filed
ASR Vermogensbeheer N.V.	–	–	–	–	Not filed
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund	–	–	–	–	Not filed