Filing Flows › Thermo Fisher Scientific (TMO) › Who owns the stock
Who owns Thermo Fisher Scientific (TMO) stock
2,633 funds reported Thermo Fisher Scientific (TMO) shares in their latest 13F filings, worth $182.0B in all. The largest holder is Vanguard Group ($19.8B). Last quarter 1,019 funds added to their stakes and 1183 cut them. Members of Congress and other officials disclosed 4 trades (1 buys, 3 sales).
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Vanguard Group | 34,133,702 | $19.8B | increase | 2025-12-31 |
| BlackRock | 30,919,632 | $15.5B | increase | 2026-06-30 |
| Vanguard Capital Management LLC | 24,276,316 | $12.2B | decrease | 2026-06-30 |
| State Street | 16,825,879 | $8.4B | increase | 2026-06-30 |
| FMR LLC | 14,084,488 | $7.1B | increase | 2026-06-30 |
| Morgan Stanley | 10,763,066 | $5.4B | decrease | 2026-06-30 |
| Geode Capital Management, LLC | 8,382,401 | $4.2B | decrease | 2026-06-30 |
| Franklin Resources | 7,271,514 | $3.6B | increase | 2026-06-30 |
| Vanguard Portfolio Management LLC | 6,226,169 | $3.1B | increase | 2026-06-30 |
| Capital World Investors | 6,195,370 | $3.1B | decrease | 2026-06-30 |
| Price T Rowe Associates | 5,116,336 | $2.6B | decrease | 2026-06-30 |
| Massachusetts Financial Services | 2,965,714 | $2.3B | decrease | 2026-06-30 |
| Capital Research Global Investors | 4,147,545 | $2.1B | decrease | 2026-06-30 |
| Bank of New York Mellon | 3,938,410 | $2.0B | increase | 2026-06-30 |
| Bank of America | 3,895,265 | $2.0B | decrease | 2026-06-30 |
Trades by Congress and other officials
| Date | Who | Trade | Amount |
|---|---|---|---|
| 2026-07-10 | Dan Newhouse | sale | $1K–$15K |
| 2026-05-07 | Dwight Evans | partial sale | $1K–$15K |
| 2026-03-27 | Alan Armstrong | purchase | $1K–$15K |
| 2025-10-31 | Lisa McClain | sale | $1K–$15K |
Thermo Fisher Scientific's latest quarter
Thermo Fisher Scientific, Q3 2026: revenue $12.1B (+9% year over year), operating margin 18.6%, net earnings $1.7B, operating cash flow $2.5B. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most TMO stock?
By the latest 13F filings: Vanguard Group ($19.8B); BlackRock ($15.5B); Vanguard Capital Management LLC ($12.2B); State Street ($8.4B); FMR LLC ($7.1B).
Has Congress traded TMO stock?
Officials disclosed 4 trades on file: 1 buys and 3 sales. The latest: Dan Newhouse, sale on 2026-07-10.
What is the short interest in TMO?
4,887,534 shares were sold short at the 2026-10-15 settlement, -9.63% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.