SEC Form 4 · Updated Daily
TMO
— THERMO FISHER SCIENTIFIC INCORPORATED OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| CASPER MARC N | Director · Officer | 122,668.741 | 2026-08-28 | F |
| Lagarde Michel | Director · Officer | 85,151.304 | 2026-02-28 | F |
| SPERLING SCOTT M | Director | 69,479 | 2026-05-20 | A |
| Williamson Stephen | Director | 32,499.4 | 2026-02-28 | F |
| Pettiti Gianluca | Officer | 26,949.14 | 2026-08-31 | M |
| Shafer Michael D | Officer | 20,203.993 | 2026-08-28 | F |
| Chai Nelson | Director | 15,316 | 2026-05-20 | A |
| Lowery Frederick M. | Director | 15,044.404 | 2026-02-28 | F |
| Britt Lisa P. | Officer | 14,390.579 | 2026-08-28 | F |
| HARRIS C MARTIN | Director | 9,532 | 2026-05-20 | A |
| Jacks Tyler | Director | 9,462 | 2026-05-20 | A |
| Shropshire Thomas B Jr. | Officer | 6,008.5 | 2026-08-28 | F |
| Meyer James | Officer | 5,559.758 | 2026-08-28 | F |
| WEISLER DION J | Director | 5,446.384 | 2026-05-20 | A |
| CHANDY RUBY R | Director | 3,463 | 2026-05-20 | A |
| Holmes Joseph R. | Officer | 2,916.457 | 2026-08-28 | F |
| Spar Debora L | Director | 2,610 | 2026-05-20 | A |
| Keith R. Alexandra | Director | 2,602 | 2026-05-20 | A |
| JOHNSON JENNIFER M | Director · Officer | 1,403 | 2026-05-20 | A |
| Lynch Karen S | Director | 1,159 | 2026-05-20 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-31 | Pettiti Gianluca | Option exercise (derivative) | 3,733 | $0.00 | 7,467 |
| 2026-08-31 | Pettiti Gianluca | Option exercise | 3,733 | $309.63 | 26,949.14 |
| 2026-08-31 | Pettiti Gianluca | Open-market sale | 400 | $614.38 | 23,216.14 |
| 2026-08-28 | Britt Lisa P. | Tax withholding | 85.096 | $622.18 | 14,390.579 |
| 2026-08-28 | Britt Lisa P. | Tax withholding | 105.403 | $622.18 | 14,475.675 |
| 2026-08-28 | Britt Lisa P. | Tax withholding | 116.04 | $622.18 | 14,581.078 |
| 2026-08-28 | Britt Lisa P. | Tax withholding | 87.03 | $622.18 | 14,697.118 |
| 2026-08-28 | Pettiti Gianluca | Tax withholding | 269.794 | $622.18 | 23,616.14 |
| 2026-08-28 | Pettiti Gianluca | Tax withholding | 249.003 | $622.18 | 23,885.934 |
| 2026-08-28 | Pettiti Gianluca | Tax withholding | 303.639 | $622.18 | 24,134.937 |
| 2026-08-28 | Pettiti Gianluca | Tax withholding | 212.256 | $622.18 | 24,438.576 |
| 2026-08-28 | Holmes Joseph R. | Tax withholding | 14.97 | $622.18 | 2,916.457 |
| 2026-08-28 | Holmes Joseph R. | Tax withholding | 11.447 | $622.18 | 2,931.427 |
| 2026-08-28 | Holmes Joseph R. | Tax withholding | 12.915 | $622.18 | 2,942.874 |
| 2026-08-28 | Holmes Joseph R. | Tax withholding | 10.567 | $622.18 | 2,955.789 |
| 2026-08-28 | Shafer Michael D | Tax withholding | 227.245 | $622.18 | 20,203.993 |
| 2026-08-28 | Shafer Michael D | Tax withholding | 189.533 | $622.18 | 20,431.238 |
| 2026-08-28 | Shafer Michael D | Tax withholding | 210.806 | $622.18 | 20,620.771 |
| 2026-08-28 | Shafer Michael D | Tax withholding | 162.457 | $622.18 | 20,831.577 |
| 2026-08-28 | Shropshire Thomas B Jr. | Tax withholding | 49.024 | $622.18 | 6,008.5 |
| 2026-08-28 | Meyer James | Tax withholding | 113.623 | $622.18 | 5,559.758 |
| 2026-08-28 | Meyer James | Tax withholding | 55.12 | $622.18 | 5,673.381 |
| 2026-08-28 | Meyer James | Tax withholding | 19.824 | $622.18 | 5,728.501 |
| 2026-08-28 | Meyer James | Tax withholding | 44.483 | $622.18 | 5,748.325 |
| 2026-08-28 | Meyer James | Tax withholding | 37.23 | $622.18 | 5,792.808 |
| 2026-08-28 | CASPER MARC N | Tax withholding | 531.851 | $622.18 | 122,668.741 |
| 2026-08-28 | CASPER MARC N | Tax withholding | 724.766 | $622.18 | 123,200.592 |
| 2026-08-24 | CASPER MARC N | Option exercise (derivative) | 275 | $0.00 | 0 |
| 2026-08-24 | CASPER MARC N | Open-market sale | 62 | $628.74 | 123,925.358 |
| 2026-08-24 | CASPER MARC N | Open-market sale | 79 | $628.01 | 123,987.358 |
| 2026-08-24 | CASPER MARC N | Open-market sale | 33 | $626.59 | 124,066.358 |
| 2026-08-24 | CASPER MARC N | Open-market sale | 101 | $625.41 | 124,099.358 |
| 2026-08-24 | CASPER MARC N | Option exercise | 275 | $309.63 | 124,200.358 |
| 2026-08-22 | Meyer James | Tax withholding | 30.945 | $629.27 | 5,830.038 |
| 2026-08-21 | CASPER MARC N | Option exercise (derivative) | 10,000 | $0.00 | 275 |
| 2026-08-21 | CASPER MARC N | Open-market sale | 321 | $629.10 | 123,925.358 |
| 2026-08-21 | CASPER MARC N | Open-market sale | 2,147 | $628.61 | 124,246.358 |
| 2026-08-21 | CASPER MARC N | Open-market sale | 1,791 | $627.39 | 126,393.358 |
| 2026-08-21 | CASPER MARC N | Open-market sale | 3,014 | $626.51 | 128,184.358 |
| 2026-08-21 | CASPER MARC N | Open-market sale | 2,727 | $625.46 | 131,198.358 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.