Updated
Thermo Fisher ScientificTMO · Healthcare
$721.66+3.86%
Market cap$267.4B
IndustryDiagnostics & Research

Thermo Fisher Scientific (TMO) Superinvestor holders

51 of the superinvestors we track hold Thermo Fisher Scientific (TMO) in their latest 13F filings, $13.6B in total.

Summary

The largest holder is Ken Fisher (Fisher Investments), with $2.0B, 0.6% of the portfolio.

In their latest quarter: 5 opened a new position, 25 added, 19 trimmed.

Who holds it

Each investor's latest 13F filing, largest stake first. What a 13F shows.

InvestorLast changeSharesValue% of portfolioFiled for
Ken Fisher
Fisher Investments
Added 2,990,343$2.0B 0.6%Q3 2026
Dodge & Cox Added 3,054,778$1.5B 0.8%Q2 2026
Jeremy Grantham
GMO
Added 2,739,191$1.4B 3.1%Q2 2026
PRIMECAP Management
PRIMECAP Management Co
Trimmed 1,982,271$994M 0.6%Q2 2026
Andreas Halvorsen
Viking Global Investors
Added 1,937,415$971M 2.8%Q2 2026
Hersh Cohen
ClearBridge Investments
Added 1,691,069$848M 0.7%Q2 2026
Aziz Hamzaogullari
Loomis Sayles & Co
Trimmed 1,315,185$659M 0.8%Q2 2026
Tom Steyer
Farallon Capital Management LLC
Added 1,049,185$526M 3.1%Q2 2026
Arrowstreet Capital Added 1,007,394$505M 0.2%Q2 2026
First Manhattan
First Manhattan Co
Added 841,894$422M 1.1%Q2 2026
Dan Sundheim
D1 Capital Partners
Added 817,123$410M 1.2%Q2 2026
Baillie Gifford
Baillie Gifford & Co
Trimmed 605,185$409M 0.4%Q3 2026
David Shaw
D. E. Shaw & Co.
Added 641,637$322M 0.2%Q2 2026
Larry Robbins
Glenview Capital Management
Added 627,240$314M 6.3%Q2 2026
Nick Train
Lindsell Train
Trimmed 391,841$293M 12.4%Q3 2026
John Clark
Southpoint Capital Advisors
Added 500,000$251M 5.7%Q2 2026
Ensign Peak
Ensign Peak Advisors
Trimmed 407,064$204M 0.3%Q2 2026
George Loening
Select Equity Group
Added 352,700$177M 0.9%Q2 2026
Steve Cohen
Point72 Asset Management
Trimmed 277,735$139M 0.2%Q2 2026
Jennison Associates Added 269,128$135M 0.1%Q2 2026
John Armitage
Egerton Capital
New position 198,227$134M 1.4%Q3 2026
Cliff Asness
AQR Capital Management
Added 257,910$129M 0.0%Q2 2026
Ric Dillon
Diamond Hill Capital Management
Trimmed 252,559$127M 1.0%Q2 2026
Steven Romick
First Pacific Advisors
Added 248,244$124M 1.6%Q2 2026
Man Group
Man Group plc
Added 195,160$98M 0.2%Q2 2026
Harding Loevner Added 169,255$85M 0.8%Q2 2026
Joel Greenblatt
Gotham Asset Management
Added 139,499$70M 0.2%Q2 2026
Wallace Weitz
Weitz Investment Management
Trimmed 115,200$58M 4.0%Q2 2026
Tom Gayner
Markel Group Inc.
Added 74,100$50M 0.4%Q3 2026
Paul Tudor Jones
Tudor Investment Corp
Added 71,244$36M 0.1%Q2 2026
Brandon Haley
Holocene Advisors
Trimmed 51,680$26M 0.1%Q2 2026
Jimmy Levin
Sculptor Capital Management
New position 41,000$21M 0.3%Q2 2026
David Katz
Matrix Asset Advisors
Trimmed 23,947$16M 1.3%Q3 2026
Artisan Partners Trimmed 29,927$15M 0.0%Q2 2026
Acadian
Acadian Asset Management
Added 20,361$14M 0.0%Q3 2026
Stanley Druckenmiller
Duquesne Family Office
New position 19,200$10M 0.2%Q2 2026
Two Sigma
Two Sigma Investments
Trimmed 17,014$9M 0.0%Q2 2026
Ray Dalio
Bridgewater Associates
Trimmed 12,948$6M 0.0%Q2 2026
Alan Howard
Brevan Howard
Added 11,225$6M 0.1%Q2 2026
Mark Donovan
Boston Partners
Added 10,819$5M 0.0%Q2 2026
Ron Baron
Baron Capital (BAMCO)
Trimmed 9,219$5M 0.0%Q2 2026
Robert Olstein
Olstein Capital Management
Added 6,750$3M 0.7%Q1 2026
Paul Marshall
Marshall Wace
Trimmed 4,321$2M 0.0%Q2 2026
Mario Gabelli
GAMCO Investors
Trimmed 4,060$2M 0.0%Q2 2026
Fayez Sarofim
Fayez Sarofim & Co
Trimmed 3,402$2M 0.0%Q2 2026
Alger
Fred Alger Management
New position 3,176$2M 0.0%Q2 2026
Fred DiSanto
Ancora Holdings
Trimmed 1,655$829,751 0.0%Q2 2026
Mairs & Power
Mairs & Power Inc
Held 1,241$622,188 0.0%Q2 2026
Alec Litowitz
Magnetar Capital
Trimmed 468$234,636 0.0%Q2 2026
Robert Torray
Torray Investment Partners
New position 338$228,167 0.0%Q3 2026
Murray Stahl
Horizon Kinetics LLC
Held 438$219,596 0.0%Q2 2026

Holders by quarter

QuarterSuperinvestors holding it
Q2 202649
Q1 202651
Q4 202551
Q3 202549
Q2 202546
Q1 202542
Q4 202446
Q3 202444

Questions about Thermo Fisher Scientific

Which superinvestors own Thermo Fisher Scientific?

51 of the superinvestors we track hold Thermo Fisher Scientific (TMO) in their latest 13F filings, $13.6B in total. Ken Fisher, Dodge & Cox, Jeremy Grantham, PRIMECAP Management, Andreas Halvorsen, Hersh Cohen.

Who is the largest superinvestor holder of TMO?

The largest holder is Ken Fisher (Fisher Investments), with $2.0B, 0.6% of the portfolio.

From Thermo Fisher Scientific's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.

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