Marc Casper Net Worth (2026)
Marc Casper is Chairman, President & CEO of Thermo Fisher (TMO). Most of a public-company CEO’s on-paper wealth is their stake in that company — and unlike net-worth sites that publish a single guess, we anchor on the number you can verify.
Past cash compensation, sold shares, real estate, and other public holdings — estimable from records, but not exact.
Private company stakes, trusts, cash, debts, and undisclosed assets. Anyone publishing these as a single number is guessing.
| Company | Thermo Fisher (TMO) |
| Title | Chairman, President & CEO |
| Verified stake | $84M |
| Shares owned | 154,833 |
| Latest total pay | $80M breakdown → |
| Age | ~58 |
We take the shares Marc Casper reports owning in their most recent SEC Form 4 and multiply by the latest share price. That gives a stake value you can check against the filing itself. Everything beyond that stake — real estate, private holdings, cash, past compensation — is estimated or simply not public, and we say so rather than roll it into one number.
The stake value is filing-derived and verifiable; any broader “net worth” is an estimate. Share counts are the latest reported on SEC filings and change as the executive trades; the price is the last close, so the stake value moves with the market. This is not an official or complete accounting of anyone’s wealth. Educational only — not investment advice.