21 insiders reported 286 Form 4 transactions for THERMO FISHER SCIENTIFIC INC. (TMO) over the past 18 months (most recent 2026-05-22). Recent activity: SPERLING SCOTT M (Director) Buy 499 shares, JOHNSON JENNIFER M (Director) Buy 499 shares, HARRIS C MARTIN (Director) Buy 499 shares, Chai Nelson (Director) Buy 499 shares, Lynch Karen S (Director) Buy 499 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | SPERLING SCOTT M | Director | Buy | 499 | $0 |
| 2026-05-22 | JOHNSON JENNIFER M | Director | Buy | 499 | $0 |
| 2026-05-22 | HARRIS C MARTIN | Director | Buy | 499 | $0 |
| 2026-05-22 | Chai Nelson | Director | Buy | 499 | $0 |
| 2026-05-22 | Lynch Karen S | Director | Buy | 499 | $0 |
| 2026-05-22 | CHANDY RUBY R | Director | Buy | 499 | $0 |
| 2026-05-22 | Jacks Tyler | Director | Buy | 499 | $0 |
| 2026-05-22 | Spar Debora L | Director | Buy | 499 | $0 |
| 2026-05-22 | WEISLER DION J | Director | Sell | 80 | $36,273 |
| 2026-05-22 | Keith R. Alexandra | Director | Buy | 499 | $0 |
| 2026-05-22 | WEISLER DION J | Director | Buy | 499 | $0 |
| 2026-03-12 | Shafer Michael D | Executive Vice President | Sell | 1,607 | $802,536 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Buy | 4,000 | $1.2M |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 516 | $267,871 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 60 | $30,346 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 58 | $29,437 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 99 | $50,456 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 214 | $109,521 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 411 | $210,732 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 1,133 | $582,033 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 570 | $293,385 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 348 | $179,443 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 201 | $103,863 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 106 | $54,890 |
| 2026-03-09 | CASPER MARC N | Chairman & CEO | Sell | 20 | $10,073 |
Source: SEC Form 4 filings · as of 2026-05-22