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: 15; +3 vs. Q2 2026
Shares held: 107.3K; −20.5K (−16.1%) vs. Q2 2026
Total value: $72.4M; +$8.35M (+13.0%) vs. Q2 2026
New holders: 3; 3 more added
Sold out: 0; 7 more reduced

2,616 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
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
Brown Advisory Inc	–	–	–	–	Not filed
Danica Pension, Livsforsikringsaktieselskab	–	–	–	–	Not filed
ZWJ Investment Counsel Inc	–	–	–	–	Not filed
Mesirow Financial Investment Management, Inc.	–	–	–	–	Not filed
Washington Trust Co	–	–	–	–	Not filed
Midwest Trust Co	–	–	–	–	Not filed
American Century Companies Inc	–	–	–	–	Not filed
OrbiMed Advisors LLC	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
Braidwell LP	–	–	–	–	Not filed
Border to Coast Pensions Partnership Ltd	–	–	–	–	Not filed
Cincinnati Financial Corp	–	–	–	–	Not filed
Polar Capital Holdings Plc	–	–	–	–	Not filed
MetLife Investment Management	–	–	–	–	Not filed
Nissay Asset Management Corp	–	–	–	–	Not filed
IFM Investors Pty Ltd	–	–	–	–	Not filed
Guinness Asset Management LTD	–	–	–	–	Not filed
Franklin Street Advisors Inc	–	–	–	–	Not filed
Covea Finance	–	–	–	–	Not filed
Welch & Forbes LLC	–	–	–	–	Not filed
Capital International Sarl	–	–	–	–	Not filed
Glenmede Trust Co NA	–	–	–	–	Not filed
Tocqueville Asset Management L.P.	–	–	–	–	Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	–	–	–	–	Not filed
Northeast Investment Management	–	–	–	–	Not filed
Americana Partners, LLC	–	–	–	–	Not filed
Henshaw Capital LLC	–	–	–	–	Not filed
Bellevue Group AG	–	–	–	–	Not filed
GuoLine Advisory Pte Ltd	–	–	–	–	Not filed
E. Ohman J:or Asset Management AB	–	–	–	–	Not filed
Ferguson Wellman Capital Management, Inc	–	–	–	–	Not filed
Daiwa Securities Group Inc.	–	–	–	–	Not filed
Marathon Asset Mgmt Ltd	–	–	–	–	Not filed
TIAA Wealth Investment Management LLC	–	–	–	–	Not filed
Aureus Asset Management, LLC	–	–	–	–	Not filed
Factory Mutual Insurance Co	–	–	–	–	Not filed
Nearwater Capital Markets, Ltd	–	–	–	–	Not filed
Ofi Invest Asset Management	–	–	–	–	Not filed
Pathstone Holdings, LLC	–	–	–	–	Not filed
Markel Group Inc.SuperinvestorMarkel Group	–	–	–	–	Not filed
Spinecap SAS	–	–	–	–	Not filed
Andra AP-fonden	–	–	–	–	Not filed
BI Asset Management Fondsmaeglerselskab A/S	–	–	–	–	Not filed
Zurich Insurance Group Ltd	–	–	–	–	Not filed
Crestwood Advisors Group LLC	–	–	–	–	Not filed
Aristotle Atlantic Partners, LLC	–	–	–	–	Not filed
Tudor Investment Corp Et Al	–	–	–	–	Not filed
MAI Capital Management	–	–	–	–	Not filed
Commonwealth Equity Services, LLC	–	–	–	–	Not filed
WestEnd Advisors, LLC	–	–	–	–	Not filed
Capital International Inc	–	–	–	–	Not filed
Howland Capital Management LLC	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
Xponance, Inc.	–	–	–	–	Not filed
Agf Management Ltd	–	–	–	–	Not filed
Ossiam	–	–	–	–	Not filed
PensionDanmark Pensionsforsikringsaktieselskab	–	–	–	–	Not filed
Federated Hermes, Inc.	–	–	–	–	Not filed
Flputnam Investment Management Co	–	–	–	–	Not filed
USS Investment Management Ltd	–	–	–	–	Not filed
Assetmark, Inc	–	–	–	–	Not filed
Nexus Investment Management ULC	–	–	–	–	Not filed
Advisors Capital Management, LLC	–	–	–	–	Not filed
Commerzbank Aktiengesellschaft	–	–	–	–	Not filed
Banque Transatlantique SA	–	–	–	–	Not filed
Klingenstein Fields & Co LP	–	–	–	–	Not filed
Amalgamated Bank	–	–	–	–	Not filed
Professional Advisory Services Inc	–	–	–	–	Not filed
Capital Fund Management S.A.	–	–	–	–	Not filed
Rockland Trust Co	–	–	–	–	Not filed
MUFG Securities EMEA plc	–	–	–	–	Not filed
Mirova	–	–	–	–	Not filed
BNP Paribas	–	–	–	–	Not filed
Gillespie Robinson & Grimm Inc	–	–	–	–	Not filed
Alta Capital Management LLC	–	–	–	–	Not filed
Varma Mutual Pension Insurance Co	–	–	–	–	Not filed
Bollard Group LLC	–	–	–	–	Not filed
Ironvine Capital Partners, LLC	–	–	–	–	Not filed
Rakuten Investment Management, Inc.	–	–	–	–	Not filed
NEOS Investment Management LLC	–	–	–	–	Not filed
North Star Asset Management Inc	–	–	–	–	Not filed
Public Sector Pension Investment Board	–	–	–	–	Not filed
Swiss Life Asset Management Ltd	–	–	–	–	Not filed
Banco Bilbao Vizcaya Argentaria, S.A.	–	–	–	–	Not filed
Huntington National Bank	–	–	–	–	Not filed
ProShare Advisors LLC	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
Boston Trust Walden Corp	–	–	–	–	Not filed
Quintet Private Bank (Europe) S.A.	–	–	–	–	Not filed
Fiduciary Trust Co	–	–	–	–	Not filed
Federation des caisses Desjardins du Quebec	–	–	–	–	Not filed
Smith, Salley & Associates	–	–	–	–	Not filed
Advisor Group Holdings, Inc.	–	–	–	–	Not filed