Thermo Fisher Scientific Inc. – Investors and Politicians Who Own It
TMO
Investors who own it
16 tracked investors, $6.2B in shares, each from their latest 13F.
| Investor | Value | Share of portfolio |
|---|---|---|
Dodge & CoxQ2 2026 | $1.5B | 0.80% |
Jeremy GranthamGMO (Grantham Mayo Van Otterloo), Q2 2026 | $1.4B | 3.09% |
Andreas HalvorsenViking Global Investors, Q2 2026 | $971.3M | 2.77% |
Farallon Capital ManagementQ2 2026 | $526M | 2.43% |
| $422.1M | 0.27% | |
Dan SundheimD1 Capital Partners, Q2 2026 | $409.7M | 1.18% |
Larry RobbinsGlenview Capital Management, Q2 2026 | $314.5M | 5.73% |
Nick TrainLindsell Train, Q2 2026 | $258M | 9.81% |
Anand ParekhAlyeska Investment Group, Q2 2026 | $188.5M | 0.49% |
Castle Hook PartnersQ2 2026 | $83.2M | 0.38% |
Wally WeitzWeitz Investment Management, Q2 2026 | $57.8M | 4.00% |
Tom GaynerMarkel Group, Q2 2026 | $36.6M | 0.28% |
Stanley DruckenmillerDuquesne Family Office, Q2 2026 | $9.6M | 0.18% |
Ray DalioBridgewater Associates, Q2 2026 | $6.5M | 0.03% |
Barry RitholtzRitholtz Wealth Management, Q2 2026 | $3.8M | 0.06% |
Mario GabelliGAMCO Investors, Q2 2026 | $2M | 0.02% |
Politicians who own it
Estimated from annual disclosures and trades; values are rough estimates.
| Politician | Est. value | Share of portfolio |
|---|---|---|
Kevin HernR-OK · House | $171.9K | 0.72% |
Kelly MorrisonD-MN · House | $148.9K | 0.66% |
Markwayne MullinR-OK · Senate | $50.4K | 0.49% |
Robert P. Bresnahan, Jr.R-PA · House | $37.2K | 0.22% |
Thomas H. Kean, Jr.R-NJ · House | $37.2K | 0.72% |
Gilbert Ray Cisneros, Jr.D-CA · House | $37.2K | 0.09% |
Dwight EvansD-PA · House | $26.1K | 14.4% |
Susan M. CollinsR-ME · Senate | $25.3K | 3.23% |
Thomas R. CarperD-DE · Senate | $13.8K | 0.79% |
Alan ArmstrongR-OK · Senate | $11.2K | 0.22% |
William R. KeatingD-MA · House | $9.2K | 0.29% |
Julie JohnsonD-TX · House | $9.2K | 0.05% |
John J. McGuire IIIR-VA · House | $9.2K | 1.11% |
Julia LetlowR-LA · House | $9.2K | 0.64% |
Investors buying and selling
| Investor | Action | Shares now |
|---|---|---|
| Andreas Halvorsen | New | 793,187 |
| Jeremy Grantham | Added +13% | 2,412,063 |
| Farallon Capital Management | Reduced −49% | 635,685 |
| National Pension Service (Korea) | Reduced −0.6% | 812,432 |
| Polen Capital | Reduced −98% | 2,307 |
| Eric Mandelblatt | Sold out | 0 |
| Dan Loeb | New | 50,000 |
| Anand Parekh | Reduced −5.1% | 405,547 |
| Tom Gayner | Added +13% | 62,800 |
| Larry Robbins | Reduced −21% | 223,947 |
| Wally Weitz | Reduced −10% | 134,950 |
| Nick Train | Reduced −16% | 689,503 |
| Barry Ritholtz | Added +34% | 9,242 |
| Ray Dalio | New | 1,686 |
| Mario Gabelli | Reduced −9.5% | 4,646 |
Politicians trading it
Latest Congress trades disclosed under the STOCK Act; amounts are ranges.
| Politician | Action | Traded |
|---|---|---|
Dan NewhouseSpouseR-WA · House | Sold$1K–$15K | Jul 10, 2026disclosed Jul 17, 2026 |
Dwight EvansD-PA · House | Sold part$1K–$15K | May 7, 2026disclosed May 15, 2026 |
Alan ArmstrongR-OK · Senate | Bought$1K–$15K | Mar 27, 2026disclosed Jul 21, 2026 |
Lisa C. McClainSpouseR-MI · House | Sold$1K–$15K | Oct 31, 2025disclosed Nov 21, 2025 |
Lisa C. McClainSpouseR-MI · House | Bought$1K–$15K | Oct 30, 2025disclosed Nov 21, 2025 |
Lisa C. McClainSpouseR-MI · House | Sold$1K–$15K | Oct 30, 2025disclosed Nov 21, 2025 |
Val T. HoyleSpouseD-OR · House | Sold$1K–$15K | Sep 23, 2025disclosed Oct 10, 2025 |
Kelly MorrisonD-MN · House | Sold part$15K–$50K | Aug 19, 2025disclosed Sep 11, 2025 |
Kelly MorrisonD-MN · House | Sold part$15K–$50K | Aug 19, 2025disclosed Sep 11, 2025 |
Kelly MorrisonD-MN · House | Sold part$1K–$15K | Aug 19, 2025disclosed Sep 11, 2025 |
Kelly MorrisonD-MN · House | Sold part$1K–$15K | Aug 19, 2025disclosed Sep 11, 2025 |
Julia LetlowR-LA · House | Bought$1K–$15K | Jul 25, 2025disclosed Jan 13, 2026 |
Lisa C. McClainSpouseR-MI · House | Bought$1K–$15K | Jul 22, 2025disclosed Aug 13, 2025 |
Angus S. King, Jr.SpouseI-ME · Senate | Sold$1K–$15K | Jul 21, 2025disclosed Aug 18, 2025 |
Lisa C. McClainSpouseR-MI · House | Sold part$1K–$15K | Jun 10, 2025disclosed Aug 13, 2025 |
Val T. HoyleSpouseD-OR · House | Bought$1K–$15K | Jun 6, 2025disclosed Sep 12, 2025 |
Rick W. AllenSpouseR-GA · House | Sold$15K–$50K | May 16, 2025disclosed Jun 18, 2025 |
Robert P. Bresnahan, Jr.R-PA · House | Bought$15K–$50K | May 15, 2025disclosed May 31, 2025 |
Markwayne MullinJointR-OK · Senate | Bought$15K–$50K | May 13, 2025disclosed Jun 11, 2025 |
Thomas H. Kean, Jr.R-NJ · House | Bought$1K–$15K | May 5, 2025disclosed Jun 17, 2025 |
Julia LetlowR-LA · House | Sold$1K–$15K | Apr 28, 2025disclosed Jan 13, 2026 |
Bruce WestermanR-AR · House | Sold$1K–$15K | Apr 21, 2025disclosed May 12, 2025 |
Rick W. AllenSpouseR-GA · House | Sold$15K–$50K | Apr 11, 2025disclosed May 15, 2025 |
Dan NewhouseSpouseR-WA · House | Sold part$1K–$15K | Apr 11, 2025disclosed May 16, 2025 |
Robert P. Bresnahan, Jr.R-PA · House | Sold$15K–$50K | Apr 8, 2025disclosed Apr 28, 2025 |
Markwayne MullinJointR-OK · Senate | Sold$50K–$100K | Apr 8, 2025disclosed May 12, 2025 |
Jefferson ShreveR-IN · House | Sold$15K–$50K | Apr 7, 2025disclosed May 8, 2025 |
Julie JohnsonJointD-TX · House | Sold$1K–$15K | Apr 7, 2025disclosed May 14, 2025 |
Greg LandsmanSpouseD-OH · House | Sold$1K–$15K | Mar 27, 2025disclosed Apr 8, 2025 |
Bruce WestermanR-AR · House | Bought$1K–$15K | Mar 3, 2025disclosed Apr 16, 2025 |
Val T. HoyleSpouseD-OR · House | Sold$1K–$15K | Mar 3, 2025disclosed Sep 12, 2025 |
Robert P. Bresnahan, Jr.R-PA · House | Sold$1K–$15K | Feb 25, 2025disclosed Mar 27, 2025 |
Michael A. RulliR-OH · House | Sold$1K–$15K | Dec 12, 2024disclosed Aug 7, 2026 |
Lisa C. McClainSpouseR-MI · House | Bought$1K–$15K | Dec 11, 2024disclosed Aug 13, 2025 |
Val T. HoyleSpouseD-OR · House | Bought$1K–$15K | Oct 29, 2024disclosed Sep 12, 2025 |
Julia LetlowR-LA · House | Bought$1K–$15K | Oct 23, 2024disclosed Jan 13, 2026 |
Josh GottheimerJointD-NJ · House | Bought$1K–$15K | Sep 10, 2024disclosed Oct 3, 2024 |
John JamesR-MI · House | Sold$1K–$15K | Sep 4, 2024disclosed Sep 6, 2024 |
John JamesR-MI · House | Bought$1K–$15K | Mar 6, 2024disclosed Sep 2, 2024 |
Josh GottheimerJointD-NJ · House | Sold$1K–$15K | Nov 28, 2023disclosed Dec 8, 2023 |