Thermo Fisher Scientific Ownership | Who Owns Thermo Fisher Scientific?

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Thermo Fisher Scientific Ownership Summary

Thermo Fisher Scientific is owned by 29.54% institutional investors, 0.15% insiders, and 70.31% retail investors. Vanguard group is the largest institutional shareholder, holding 9.08% of TMO shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.21% of its assets in Thermo Fisher Scientific shares.

TMO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Thermo Fisher Scientific	29.54%	0.15%	70.31%
Sector	Healthcare Stocks	35.49%	11.78%	52.72%
Industry	Diagnostics & Research Stocks	50.92%	10.77%	38.30%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	34.13M	9.08%	$19.78B
Blackrock funding, inc. /de	30.43M	8.09%	$14.96B
Blackrock	29.53M	7.73%	$16.33B
State street	16.73M	4.45%	$8.23B
Morgan stanley	10.86M	2.89%	$5.34B
Fmr	10.78M	2.87%	$5.30B
Geode capital management	8.41M	2.24%	$4.11B
Franklin resources	6.81M	1.81%	$3.35B
Jpmorgan chase	6.80M	1.81%	$3.26B
Capital world investors	6.65M	1.77%	$3.27B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Spinecap sas	69.51K	12.54%	$34.17M
Cryder capital partners llp	376.68K	12.09%	$185.15M
Teca partners, lp	31.94K	10.82%	$15.70M
C partners gmbh	65.36K	10.14%	$32.13M
Lindsell train	617.21K	9.67%	$303.38M
Unisphere establishment	2.06M	8.52%	$1.01B
Wormser freres gestion	21.37K	7.75%	$10.74M
Edgepoint investment group	1.92M	7.56%	$943.24M
R.h. dinel investment counsel	17.92K	7.13%	$8.81M
Veritas asset management llp	846.00K	7.04%	$415.83M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	5.30M	0.33%	5.30M
Capital investors	3.89M	0.45%	2.97M
Vanguard fiduciary trust	2.11M	0.27%	2.11M
Capital research global investors	4.41M	0.34%	1.50M
Fmr	10.78M	0.28%	983.09K

Top Sellers

Holder	Shares	% Assets	Change
J. stern & co. llp	54.85K	2.61%	-31.45M
Capital world investors	6.65M	0.45%	-4.36M
Soundwatch capital	-	-	-1.99M
Wellington management group llp	1.48M	0.14%	-1.99M
Tci fund management	-	-	-1.52M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	5.30M	0.33%	5.30M	$3.07B
Vanguard fiduciary trust	2.11M	0.27%	2.11M	$1.04B
Vanguard global advisers	822.05K	0.22%	822.05K	$404.06M
D1 capital partners	725.00K	3.17%	725.00K	$356.36M
Vanguard asset management	652.72K	0.28%	652.72K	$320.83M

Sold Out

Holder	Change
Ross\johnson & associates	-1.00
Richardson capital management	-1.00
Delos wealth advisors	-2.00
Bear mountain capital	-2.00
Sugar maple asset management	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	1,764	-35.90%	111,067,690	-70.53%	29	0.29%	761	-41.33%	730	-30.21%
Dec 31, 2025	2,162	-16.01%	251,583,106	-24.05%	66	0.87%	1,003	-17.99%	838	-11.13%
Sep 30, 2025	2,064	-17.57%	229,669,497	-26.88%	60	0.88%	1,009	-5.44%	748	-28.21%
Jun 30, 2025	2,490	-4.67%	334,702,557	1.05%	88	1.15%	1,057	-10.04%	1,036	4.44%
Mar 31, 2025	2,580	-2.68%	328,995,238	-2.44%	87	1.12%	1,158	0.96%	982	-9.16%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	12.10M	3.21%	6.98K
Vanguard Total Stock Mkt Idx Inv	11.80M	3.18%	-87.50K
Vanguard 500 Index Investor	9.57M	2.57%	-97.52K
iShares Core S&P 500 ETF	4.86M	1.31%	14.23K
Fidelity 500 Index	4.80M	1.29%	16.73K
SPDR® S&P 500 ETF	4.76M	1.26%	-69.75K
SPDR® S&P 500® ETF Trust	4.63M	1.23%	-24.30K
SPDR® S&P 500® ETF	4.56M	1.21%	56.17K
State Street® SPDR® S&P 500® ETF	4.47M	1.20%	-4.80K
Vanguard Value Index Inv	3.43M	0.92%	-67.17K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Apr 27, 2026	Pettiti Gianluca	President & COO	Sell	$185.06K
Mar 11, 2026	Shafer Michael D	Executive Vice President	Sell	$802.54K
Mar 05, 2026	CASPER MARC N	Chairman & CEO	Sell	$30.35K
Mar 05, 2026	CASPER MARC N	Chairman & CEO	Sell	$10.07K
Mar 05, 2026	CASPER MARC N	Chairman & CEO	Sell	$29.44K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	1
2026 Q1	-	35
2025 Q4	-	29
2025 Q3	-	32
2025 Q2	-	2

TMO Ownership FAQ

Who Owns Thermo Fisher Scientific?

Thermo Fisher Scientific shareholders are primarily institutional investors at 29.54%, followed by 0.15% insiders and 70.31% retail investors. The average institutional ownership in Thermo Fisher Scientific's industry, Diagnostics & Research Stocks, is 50.92%, which Thermo Fisher Scientific falls below.

Who owns the most shares of Thermo Fisher Scientific?

Thermo Fisher Scientific’s largest shareholders are Vanguard group (34.13M shares, 9.08%), Blackrock funding, inc. /de (30.43M shares, 8.09%), and Blackrock (29.53M shares, 7.73%). Together, they hold 24.90% of Thermo Fisher Scientific’s total shares outstanding.

Does Blackrock own Thermo Fisher Scientific?

Yes, BlackRock owns 7.73% of Thermo Fisher Scientific, totaling 29.53M shares as of Jun 2024. This represents 0.37% of BlackRock's total assets, with a market value of 16.33B$. In the last quarter, BlackRock increased its holdings by 549.48K shares, a 1.90% change.

Who is Thermo Fisher Scientific’s biggest shareholder by percentage of total assets invested?

Spinecap sas is Thermo Fisher Scientific’s biggest shareholder by percentage of total assets invested, with 12.54% of its assets in 69.51K Thermo Fisher Scientific shares, valued at 34.17M$.

Who is the top mutual fund holder of Thermo Fisher Scientific shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Thermo Fisher Scientific shares, with 3.21% of its total shares outstanding invested in 12.1M Thermo Fisher Scientific shares.

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