Updated Jul 16, 2026
CASPER MARC N is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $72.83M.

Marc N. Casper is the chairman and chief executive officer of Thermo Fisher Scientific Inc., a global leader in scientific instrumentation, laboratory equipment and related services. As of the March 9, 2026 SEC filing, he holds both the roles of chairman and CEO. Under his leadership, Thermo Fisher has pursued growth through strategic acquisitions and expansion of its life sciences tools and services portfolio, including notable transactions such as the acquisition of Life Technologies (completed in 2014) and Patheon (completed in 2017). He has guided the company through cycles of globalization, regulatory complexity, and evolving demand in the life sciences and analytical instrumentation markets.
| Role | Chairman & CEO, Director |
|---|---|
| Notability | 85/100 |
| Links | Wikipedia |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 264 | $519.74 | $137K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 516 | $519.13 | $268K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 106 | $517.83 | $55K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 201 | $516.73 | $104K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 348 | $515.64 | $179K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 570 | $514.71 | $293K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 1.1K | $513.71 | $582K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 411 | $512.73 | $211K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 214 | $511.78 | $110K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 99 | $509.66 | $50K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 58 | $507.54 | $29K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 60 | $505.76 | $30K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 20 | $503.66 | $10K |
| 2026-03-09 | TMO | THERMO FISHER SCIENTIFIC INC. | M — Option exercise [10b5-1] | 4.0K | $309.63 | $1.24M |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 118 | $516.75 | $61K |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 119 | $515.77 | $61K |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 212 | $514.86 | $109K |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 815 | $513.63 | $419K |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 1.2K | $512.92 | $637K |
| 2026-03-05 | TMO | THERMO FISHER SCIENTIFIC INC. | S — Open-market sale [10b5-1] | 1.4K | $511.80 | $701K |
Marc N. Casper is the chairman and chief executive officer of Thermo Fisher Scientific Inc., a global leader in scientific instrumentation, laboratory equipment and related services. As of the March 9, 2026 SEC filing, he holds both the roles of chairman and CEO. Under his leadership, Thermo Fisher has pursued growth through strategic acquisitions and expansion of its life scie…
Recorded transactions: 0 open-market purchases () and 132 open-market sales ($72.83M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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