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 66.5%. Over the past 90 days, insiders made 2 sales worth $4.0M.

Shares Outstanding

377.261M

Shares Float

376.865M

Insider Shares Owned

1.874M

Insider % Owned

0.5%

Institutional Shares Held

246.245M

Institutional % Held

66.5%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$4.0M total

Net Activity

Net Selling

Net Value (90d)

-$4.0M

Thermo Fisher Scientific Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 28, 2026	Lisa P Britt	SR. VP AND CHIEF HR OFFICER	SELL	2.831K	$706.45	$2.0M
Aug 28, 2026	Gianluca Pettiti	PRESIDENT & COO	SELL	1.435K	$462.79	$2.0M
Aug 24, 2026	Marc N Casper	CHAIRMAN & CEO	SELL-OPTIONS	—	$468.34	$87K
Aug 20, 2026	Marc N Casper	CHAIRMAN & CEO	SELL-OPTIONS	—	$468.86	$6.4M
Aug 19, 2026	Lisa P Britt	SR. VP AND CHIEF HR OFFICER	SELL-OPTIONS	—	$515.72	$2.2M
Aug 11, 2026	Michael D Shafer	EXECUTIVE VICE PRESIDENT	SELL-OPTIONS	—	$485.29	$5.9M
Aug 7, 2026	Joseph R Holmes	VP & CHIEF ACCOUNTING OFFICER	SELL-OPTIONS	—	$447.22	$116K
Aug 7, 2026	Marc N Casper	CHAIRMAN & CEO	SELL	4.608K	$447.87	$2.8M
Aug 6, 2026	Lisa P Britt	SR. VP AND CHIEF HR OFFICER	SELL-OPTIONS	—	$444.81	$1.6M
Aug 6, 2026	Marc N Casper	CHAIRMAN & CEO	SELL	5.000K	$442.05	$5.5M
Aug 5, 2026	Marc N Casper	CHAIRMAN & CEO	SELL	5.000K	$442.43	$5.5M
Jul 27, 2026	Gianluca Pettiti	PRESIDENT & COO	SELL	400.000	$565.00	$226K

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