Thermo Fisher Scientific Inc. (TMO) insider trading.
In Q3 2026, insiders at Thermo Fisher Scientific Inc. reported 130 non-derivative transactions on 23 Forms 3, 4 and 5: 0 open-market purchases and 93 sales worth $61.6M.
- Transactions
- 130
- Purchases (P)
- 0
- Sales (S)
- 93
- Net shares, P minus S
- -102,901
- Insiders
- 7
- Last filed
- 2026-09-01
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Casper Marc N | Director, Officer · Chairman & CEO | 93 | 0 | 85 |
| Pettiti Gianluca | Officer · President & COO | 8 | 0 | 3 |
| Britt Lisa P. | Officer · Sr. VP and Chief HR Officer | 8 | 0 | 2 |
| Shafer Michael D | Officer · Executive Vice President | 8 | 0 | 2 |
| Holmes Joseph R. | Officer · VP & Chief Accounting Officer | 6 | 0 | 1 |
| Meyer James | Officer · Sr. Vice President & CFO | 6 | 0 | 0 |
| Shropshire Thomas B Jr. | Officer · SVP and General Counsel | 1 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-31 | Pettiti Gianluca | S (D) | 3,733 | $614.38 | 23,216 | Form 4 |
| 2026-08-31 | Pettiti Gianluca | S (D) | 400 | $614.38 | 23,216 | Form 4 |
| 2026-08-31 | Pettiti Gianluca | M (A) | 3,733 | $309.63 | 26,949 | Form 4 |
| 2026-08-28 | Britt Lisa P. | F (D) | 87 | $622.18 | 14,697 | Form 4 |
| 2026-08-28 | Britt Lisa P. | F (D) | 116 | $622.18 | 14,581 | Form 4 |
| 2026-08-28 | Britt Lisa P. | F (D) | 105 | $622.18 | 14,476 | Form 4 |
| 2026-08-28 | Britt Lisa P. | F (D) | 85 | $622.18 | 14,391 | Form 4 |
| 2026-08-28 | Pettiti Gianluca | F (D) | 212 | $622.18 | 24,439 | Form 4 |
| 2026-08-28 | Pettiti Gianluca | F (D) | 304 | $622.18 | 24,135 | Form 4 |
| 2026-08-28 | Pettiti Gianluca | F (D) | 249 | $622.18 | 23,886 | Form 4 |
| 2026-08-28 | Pettiti Gianluca | F (D) | 270 | $622.18 | 23,616 | Form 4 |
| 2026-08-28 | Holmes Joseph R. | F (D) | 15 | $622.18 | 2,916 | Form 4 |
| 2026-08-28 | Holmes Joseph R. | F (D) | 11 | $622.18 | 2,931 | Form 4 |
| 2026-08-28 | Holmes Joseph R. | F (D) | 11 | $622.18 | 2,956 | Form 4 |
| 2026-08-28 | Holmes Joseph R. | F (D) | 13 | $622.18 | 2,943 | Form 4 |
| 2026-08-28 | Shafer Michael D | F (D) | 162 | $622.18 | 20,832 | Form 4 |
| 2026-08-28 | Shafer Michael D | F (D) | 211 | $622.18 | 20,621 | Form 4 |
| 2026-08-28 | Shafer Michael D | F (D) | 190 | $622.18 | 20,431 | Form 4 |
| 2026-08-28 | Shafer Michael D | F (D) | 227 | $622.18 | 20,204 | Form 4 |
| 2026-08-28 | Shropshire Thomas B Jr. | F (D) | 49 | $622.18 | 6,009 | Form 4 |
| 2026-08-28 | Meyer James | F (D) | 20 | $622.18 | 5,729 | Form 4 |
| 2026-08-28 | Meyer James | F (D) | 37 | $622.18 | 5,793 | Form 4 |
| 2026-08-28 | Meyer James | F (D) | 114 | $622.18 | 5,560 | Form 4 |
| 2026-08-28 | Meyer James | F (D) | 44 | $622.18 | 5,748 | Form 4 |
| 2026-08-28 | Meyer James | F (D) | 55 | $622.18 | 5,673 | Form 4 |
| 2026-08-28 | Casper Marc N | F (D) | 532 | $622.18 | 122,669 | Form 4 |
| 2026-08-28 | Casper Marc N | F (D) | 725 | $622.18 | 123,201 | Form 4 |
| 2026-08-24 | Casper Marc N | S (D) | 33 | $626.59 | 124,066 | Form 4 |
| 2026-08-24 | Casper Marc N | S (D) | 79 | $628.01 | 123,987 | Form 4 |
| 2026-08-24 | Casper Marc N | S (D) | 62 | $628.74 | 123,925 | Form 4 |
| 2026-08-24 | Casper Marc N | M (A) | 275 | $309.63 | 124,200 | Form 4 |
| 2026-08-24 | Casper Marc N | S (D) | 101 | $625.41 | 124,099 | Form 4 |
| 2026-08-22 | Meyer James | F (D) | 31 | $629.27 | 5,830 | Form 4 |
| 2026-08-21 | Casper Marc N | S (D) | 321 | $629.1 | 123,925 | Form 4 |
| 2026-08-21 | Casper Marc N | S (D) | 2,147 | $628.61 | 124,246 | Form 4 |
| 2026-08-21 | Casper Marc N | S (D) | 1,791 | $627.39 | 126,393 | Form 4 |
| 2026-08-21 | Casper Marc N | S (D) | 3,014 | $626.51 | 128,184 | Form 4 |
| 2026-08-21 | Casper Marc N | S (D) | 2,727 | $625.46 | 131,198 | Form 4 |
| 2026-08-21 | Casper Marc N | M (A) | 10,000 | $309.63 | 133,925 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 2,601 | $628.82 | 128,280 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 80 | $633.99 | 123,925 | Form 4 |
| 2026-08-20 | Casper Marc N | M (A) | 10,000 | $309.63 | 133,925 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 909 | $625.45 | 133,016 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 821 | $626.83 | 132,195 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 1,314 | $627.66 | 130,881 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 1,250 | $629.85 | 127,030 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 1,035 | $630.87 | 125,995 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 1,430 | $632.01 | 124,565 | Form 4 |
| 2026-08-20 | Casper Marc N | S (D) | 560 | $632.94 | 124,005 | Form 4 |
| 2026-08-19 | Britt Lisa P. | S (D) | 11,440 | $613.12 | 14,784 | Form 4 |
| 2026-08-19 | Britt Lisa P. | M (A) | 11,440 | $418.32 | 26,224 | Form 4 |
| 2026-08-11 | Shafer Michael D | M (A) | 11,200 | $309.63 | 32,194 | Form 4 |
| 2026-08-11 | Shafer Michael D | S (D) | 11,200 | $600 | 20,994 | Form 4 |
| 2026-08-11 | Shafer Michael D | M (A) | 14,300 | $418.32 | 35,294 | Form 4 |
| 2026-08-11 | Shafer Michael D | S (D) | 14,300 | $600 | 20,994 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 12 | $587.64 | 123,993 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 7 | $593.32 | 123,925 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 94 | $577.37 | 4,514 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 114 | $579.26 | 4,400 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 113 | $580.71 | 4,287 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 113 | $581.85 | 4,174 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 302 | $583.35 | 3,872 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 1,035 | $584.41 | 2,837 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 530 | $585.44 | 2,307 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 945 | $586.52 | 1,362 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 228 | $587.64 | 1,134 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 522 | $589.52 | 612 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 495 | $590.78 | 117 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 117 | $593.31 | 0 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 58 | $586.53 | 124,005 | Form 4 |
| 2026-08-07 | Casper Marc N | M (A) | 275 | $309.63 | 124,200 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 6 | $577.37 | 124,194 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 4 | $579.26 | 124,190 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 2 | $579.27 | 124,188 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 4 | $580.71 | 124,184 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 3 | $580.72 | 124,181 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 5 | $581.85 | 124,176 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 2 | $581.86 | 124,174 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 18 | $583.37 | 124,156 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 63 | $584.4 | 124,093 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 30 | $585.42 | 124,063 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 32 | $589.51 | 123,961 | Form 4 |
| 2026-08-07 | Casper Marc N | S (D) | 29 | $590.77 | 123,932 | Form 4 |
| 2026-08-07 | Holmes Joseph R. | M (A) | 420 | $309.63 | 3,386 | Form 4 |
| 2026-08-07 | Holmes Joseph R. | S (D) | 420 | $584.81 | 2,966 | Form 4 |
| 2026-08-06 | Britt Lisa P. | S (D) | 5,850 | $580 | 14,784 | Form 4 |
| 2026-08-06 | Britt Lisa P. | M (A) | 5,850 | $309.63 | 20,634 | Form 4 |
| 2026-08-06 | Casper Marc N | M (A) | 10,000 | $309.63 | 133,925 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 480 | $571.05 | 133,445 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 1,631 | $572.43 | 131,814 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 2,545 | $573.53 | 129,269 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 1,617 | $574.4 | 127,652 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 2,164 | $575.46 | 125,488 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 480 | $576.46 | 125,008 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 451 | $577.43 | 124,557 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 321 | $578.67 | 124,236 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 311 | $579.9 | 123,925 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 240 | $571 | 9,368 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 660 | $572.33 | 8,708 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 1,200 | $573.34 | 7,508 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 1,008 | $574.28 | 6,500 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 1,060 | $575.41 | 5,440 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 225 | $576.09 | 5,215 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 361 | $577.57 | 4,854 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 119 | $578.93 | 4,735 | Form 4 |
| 2026-08-06 | Casper Marc N | S (D) | 127 | $580.01 | 4,608 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 75 | $577.56 | 123,925 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 2,575 | $576.82 | 124,000 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 66 | $567.94 | 14,463 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 38 | $569.13 | 14,425 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 40 | $569.69 | 14,385 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 68 | $571.5 | 14,317 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 216 | $573.08 | 14,101 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 590 | $574.03 | 13,511 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 1,113 | $574.98 | 12,398 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 1,464 | $576.05 | 10,934 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 1,289 | $576.83 | 9,645 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 37 | $577.56 | 9,608 | Form 4 |
| 2026-08-05 | Casper Marc N | M (A) | 10,000 | $309.63 | 133,925 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 157 | $566.25 | 133,768 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 130 | $567.92 | 133,638 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 105 | $569.24 | 133,533 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 53 | $569.76 | 133,480 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 135 | $571.49 | 133,345 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 431 | $573.08 | 132,914 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 1,186 | $574.03 | 131,728 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 2,223 | $574.98 | 129,505 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 2,930 | $576.05 | 126,575 | Form 4 |
| 2026-08-05 | Casper Marc N | S (D) | 79 | $566.26 | 14,529 | Form 4 |
| 2026-07-27 | Pettiti Gianluca | S (D) | 400 | $565 | 24,651 | Form 4 |
Transaction codes in this quarter
Get TMO insider transactions through the API
Request with your API key
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=97745&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · TMO company page · Thermo Fisher Scientific Inc. on SEC.gov
Questions
Are insiders buying or selling Thermo Fisher Scientific Inc. (TMO)?
In Q3 2026, insiders at Thermo Fisher Scientific Inc. reported 130 non-derivative transactions on 23 Forms 3, 4 and 5: 0 open-market purchases and 93 sales worth $61.6M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Thermo Fisher Scientific Inc. insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Source: SEC Insider Transactions Data Sets, Q3 2026, retrieved 2026-10-27. Footnotes, derivative holdings and amendments are in the linked filings. Not investment advice.
Plain-text version for agents and LLMs: /insider-trading/tmo.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.