TMO (Thermo Fisher Scientific, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by TMO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-01 | Thomas B Shropshire Jr. | SVP and General Counsel | F | — | — |
| 2026-09-01 | Michael D Shafer | Executive Vice President | F | — | — |
| 2026-09-01 | James Meyer | Sr. Vice President & CFO | F | — | — |
| 2026-09-01 | Lisa P. Britt | Sr. VP and Chief HR Officer | F | — | — |
| 2026-09-01 | MARC N CASPER | Chairman & CEO | F | — | — |
| 2026-09-01 | Joseph R. Holmes | VP & Chief Accounting Officer | F | — | — |
| 2026-09-01 | Gianluca Pettiti | President & COO | MIXED | — | — |
| 2026-08-26 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-24 | James Meyer | Sr. Vice President & CFO | F | — | — |
| 2026-08-24 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-20 | Lisa P. Britt | Sr. VP and Chief HR Officer | MIXED | — | — |
| 2026-08-13 | Michael D Shafer | Executive Vice President | MIXED | — | — |
| 2026-08-10 | Joseph R. Holmes | VP & Chief Accounting Officer | MIXED | — | — |
| 2026-08-10 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-07 | Lisa P. Britt | Sr. VP and Chief HR Officer | MIXED | — | — |
| 2026-08-07 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-07 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-07 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-08-07 | Lisa P. Britt | Sr. VP and Chief HR Officer | MIXED | — | — |
| 2026-08-07 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-07-28 | Gianluca Pettiti | President & COO | Sell | — | — |
| 2026-05-22 | Nelson Chai | Director | A | — | — |
| 2026-05-22 | RUBY R CHANDY | Director | A | — | — |
| 2026-05-22 | C MARTIN HARRIS | Director | A | — | — |
| 2026-05-22 | Tyler Jacks | Director | A | — | — |
| 2026-05-22 | JENNIFER M JOHNSON | Director | A | — | — |
| 2026-05-22 | R. Alexandra Keith | Director | A | — | — |
| 2026-05-22 | Karen S Lynch | Director | A | — | — |
| 2026-05-22 | Debora L Spar | Director | A | — | — |
| 2026-05-22 | SCOTT M SPERLING | Director | A | — | — |
| 2026-05-22 | DION J WEISLER | Director | MIXED | — | — |
| 2026-04-29 | Gianluca Pettiti | President & COO | Sell | — | — |
| 2026-03-31 | DION J WEISLER | Director | A | — | — |
| 2026-03-31 | JENNIFER M JOHNSON | Director | A | — | — |
| 2026-03-31 | Karen S Lynch | Director | A | — | — |
| 2026-03-31 | R. Alexandra Keith | Director | A | — | — |
| 2026-03-31 | SCOTT M SPERLING | Director | A | — | — |
| 2026-03-12 | Michael D Shafer | Executive Vice President | Sell | — | — |
| 2026-03-09 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-03-05 | MARC N CASPER | Chairman & CEO | MIXED | — | — |
| 2026-03-02 | Frederick M. Lowery | Executive Vice President | F | — | — |
| 2026-03-02 | Michael D Shafer | Executive Vice President | F | — | — |
| 2026-03-02 | Stephen Williamson | Retiring Sr. VP and CFO | F | — | — |
| 2026-03-02 | Gianluca Pettiti | President & COO | F | — | — |
| 2026-03-02 | Michel Lagarde | Executive Vice President | F | — | — |
| 2026-03-02 | Joseph R. Holmes | VP & Chief Accounting Officer | F | — | — |
| 2026-03-02 | Lisa P. Britt | Sr. VP and Chief HR Officer | F | — | — |
| 2026-03-02 | MARC N CASPER | Chairman & CEO | F | — | — |
| 2026-02-27 | MARC N CASPER | Chairman & CEO | A | — | — |
| 2026-02-27 | Gianluca Pettiti | Executive Vice President | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 450,000 | — |
| — | Chairman & CEO | 127,668 | — |
| — | Senior Vice President | 110,369 | — |
| — | Chief Executive Officer | 102,814 | — |
| — | Senior Vice President | 87,891 | — |
| — | Executive Vice President | 85,151 | — |
| — | Director | 69,479 | — |
| — | Exec. VP & Chief Admin Officer | 68,467 | — |
| — | Retiring Executive VP & COO | 67,461 | — |
| — | Executive Vice President | 61,542 | — |
| — | Senior Vice President | 52,389 | — |
| — | Retiring Sr. VP and CFO | 45,420 | — |
| — | Senior Vice President | 38,868 | — |
| — | Senior Vice President | 38,133 | — |
| — | Senior Vice President | 36,127 | — |
| — | Senior Vice President | 31,545 | — |
| — | Sr. VP, Global Bus. Services | 29,356 | — |
| — | Sr. VP & Retiring Gen. Counsel | 28,776 | — |
| — | Senior Vice President | 27,740 | — |
| — | Director | 26,143 | — |
| — | President & COO | 23,885 | — |
| — | Sr. Vice President | 23,529 | — |
| — | Senior Vice President | 20,682 | — |
| — | Executive Vice President | 20,620 | — |
| — | Director | 18,759 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the TMO quote page; the site-wide leaderboard is on the insider transactions hub.