Thermo Fisher Scientific Inc. (TMO) Institutional Ownership & Insider Trading

2,610 institutions reported holding Thermo Fisher Scientific Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 160 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

TMOThermo Fisher Scientific Inc.Follow TMO — free

Diagnostics & Research · Healthcare

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Market cap: 249.1B
P/E TTM: 36.2
Dividend yield: 0.3%
52-week: —
Next earnings: 27 Jan, in 95 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

2,610 institutions held 90.9% of the shares. Across filers that reported both quarters, shares held changed -0.7%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	2,610	336	-0.7%	798	137	988	117
Mar 26	2,567	332	-11.7%	799	105	899	184
Dec 25	2,634	374	+9.2%	749	174	834	86
Sep 25	2,450	338	+2.3%	798	179	791	108
Jun 25	2,405	333	-0.9%	786	117	896	222
Mar 25	2,503	329	-0.8%	845	84	809	117
Dec 24	2,525	338	-1.6%	708	74	916	165
Sep 24	2,496	330	-4.5%	781	107	757	83

Thermo Fisher Scientific Inc. — questions

Who owns Thermo Fisher Scientific Inc. stock?: 2,610 institutions reported Thermo Fisher Scientific Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (8.4%), VANGUARD CAPITAL MANAGEMENT LLC (6.6%), STATE STREET CORP (4.5%).
Are Thermo Fisher Scientific Inc. insiders buying or selling?: 160 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Thermo Fisher Scientific Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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