Thermo Fisher Scientific Ownership & Insider Activity

Thermo Fisher Scientific (TMO) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.5% of shares outstanding. Institutional investors hold 66.3%.

Shares Outstanding

377.261M

Shares Float

376.865M

Insider Shares Owned

1.880M

Insider % Owned

0.5%

Institutional Shares Held

245.067M

Institutional % Held

66.3%

Ownership Breakdown

Congressional Trading Activity

Date	Member	Party	Chamber	Action	Amount
Jul 10, 2026	Dan Newhouse	R	House	Sale	$1,001 - $15,000
May 7, 2026	Dwight Evans	D	House	Sale (Partial)	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Oct 31, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Sale	$1,001 - $15,000
Oct 30, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Sep 23, 2025	Val Hoyle	D	House	Sale	$1,001 - $15,000
Aug 19, 2025	Kelly Morrison	D	House	Sale (Partial)	$15,001 - $50,000
Aug 19, 2025	Kelly Morrison	D	House	Sale (Partial)	$15,001 - $50,000
Aug 19, 2025	Kelly Morrison	D	House	Sale (Partial)	$1,001 - $15,000
Aug 19, 2025	Kelly Morrison	D	House	Sale (Partial)	$1,001 - $15,000
Jul 25, 2025	Julia Letlow	R	House	Purchase	$1,001 - $15,000
Jul 22, 2025	Lisa McClain	R	House	Purchase	$1,001 - $15,000
Jul 21, 2025	Angus S. King, Jr.	I	Senate	Sale	$1,001 - $15,000
Jun 10, 2025	Lisa McClain	R	House	Sale (Partial)	$1,001 - $15,000
Jun 6, 2025	Val Hoyle	D	House	Purchase	$1,001 - $15,000
May 16, 2025	Rick Allen	R	House	Sale	$15,001 - $50,000
May 15, 2025	Robert Bresnahan	R	House	Purchase	$15,001 - $50,000
May 13, 2025	Markwayne Mullin	R	Senate	Purchase	$15,001 - $50,000
May 5, 2025	Thomas Kean	R	House	Purchase	$1,001 - $15,000