TMO
insider transactionsTHERMO FISHER SCIENTIFIC INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
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Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
—
66 sh
Own +5%
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Grant·A
Director
—
90 sh
Own +1%
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Grant·A
Director
—
66 sh
Own +29%
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Grant·A
Director
—
66 sh
Own +11%
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Grant·A
Director
—
79 sh
Own +3%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Mar 28, 2026 | Keith R. Alexandra | Grant A | 66 | — |
| Mar 28, 2026 | SPERLING SCOTT M | Grant A | 90 | — |
| Mar 28, 2026 | Lynch Karen S | Grant A | 66 | — |
| Mar 28, 2026 | JOHNSON JENNIFER M | Grant A | 66 | — |
| Mar 28, 2026 | WEISLER DION J | Grant A | 79 | — |
About TMO insider trading
This page tracks insider transactions for THERMO FISHER SCIENTIFIC INC. (TMO) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.