TMO.NYSEThermo Fisher Scientific INC
Form 4: Thermo Fisher Scientific CEO Sells Shares
Sentiment:
Insider Transaction (Form 4)
Marc N Casper, Chairman & CEO and a Director of Thermo Fisher Scientific Inc., sold 20,000 shares of common stock on August 20, 2026.
Summary
- Option exercise/conversion: acquired 10,000 Common Stock at $309.63 ($3,096,300) on August 20, 2026; holds 133,925 after (Direct).
- Open-market sale: disposed of 909 Common Stock at $625.45 ($568,534) on August 20, 2026; holds 133,016 after (Direct).
- Open-market sale: disposed of 821 Common Stock at $626.83 ($514,627) on August 20, 2026; holds 132,195 after (Direct).
- Open-market sale: disposed of 1,314 Common Stock at $627.66 ($824,745) on August 20, 2026; holds 130,881 after (Direct).
- Open-market sale: disposed of 2,601 Common Stock at $628.82 ($1,635,561) on August 20, 2026; holds 128,280 after (Direct).
- Open-market sale: disposed of 1,250 Common Stock at $629.85 ($787,312) on August 20, 2026; holds 127,030 after (Direct).
- Open-market sale: disposed of 1,035 Common Stock at $630.87 ($652,950) on August 20, 2026; holds 125,995 after (Direct).
- Open-market sale: disposed of 1,430 Common Stock at $632.01 ($903,774) on August 20, 2026; holds 124,565 after (Direct).
- Open-market sale: disposed of 560 Common Stock at $632.94 ($354,446) on August 20, 2026; holds 124,005 after (Direct).
- Open-market sale: disposed of 80 Common Stock at $633.99 ($50,719) on August 20, 2026; holds 123,925 after (Direct).
- Option exercise/conversion: acquired 10,000 Common Stock at $309.63 ($3,096,300) on August 21, 2026; holds 133,925 after (Direct).
- Open-market sale: disposed of 2,727 Common Stock at $625.46 ($1,705,629) on August 21, 2026; holds 131,198 after (Direct).
- Open-market sale: disposed of 3,014 Common Stock at $626.51 ($1,888,301) on August 21, 2026; holds 128,184 after (Direct).
- Open-market sale: disposed of 1,791 Common Stock at $627.39 ($1,123,655) on August 21, 2026; holds 126,393 after (Direct).
- Open-market sale: disposed of 2,147 Common Stock at $628.61 ($1,349,626) on August 21, 2026; holds 124,246 after (Direct).
- Open-market sale: disposed of 321 Common Stock at $629.10 ($201,941) on August 21, 2026; holds 123,925 after (Direct).
- Option exercise/conversion: disposed of 10,000 Stock Option (Right to Buy) on August 20, 2026; holds 10,275 after (Direct).
- Option exercise/conversion: disposed of 10,000 Stock Option (Right to Buy) on August 21, 2026; holds 275 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $12,561,823 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Marc N Casper — Director, Officer (Chairman & CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-20 | Option exercise/conversion | Common Stock | 10,000 | $310 | $3.1M | 133,925.358 |
| 2026-08-20 | Open-market sale | Common Stock | 909 | $625 | $568.5K | 133,016.358 |
| 2026-08-20 | Open-market sale | Common Stock | 821 | $627 | $514.6K | 132,195.358 |
| 2026-08-20 | Open-market sale | Common Stock | 1,314 | $628 | $824.7K | 130,881.358 |
| 2026-08-20 | Open-market sale | Common Stock | 2,601 | $629 | $1.6M | 128,280.358 |
| 2026-08-20 | Open-market sale | Common Stock | 1,250 | $630 | $787.3K | 127,030.358 |
| 2026-08-20 | Open-market sale | Common Stock | 1,035 | $631 | $653.0K | 125,995.358 |
| 2026-08-20 | Open-market sale | Common Stock | 1,430 | $632 | $903.8K | 124,565.358 |
| 2026-08-20 | Open-market sale | Common Stock | 560 | $633 | $354.4K | 124,005.358 |
| 2026-08-20 | Open-market sale | Common Stock | 80 | $634 | $50.7K | 123,925.358 |
| 2026-08-21 | Option exercise/conversion | Common Stock | 10,000 | $310 | $3.1M | 133,925.358 |
| 2026-08-21 | Open-market sale | Common Stock | 2,727 | $625 | $1.7M | 131,198.358 |
| 2026-08-21 | Open-market sale | Common Stock | 3,014 | $627 | $1.9M | 128,184.358 |
| 2026-08-21 | Open-market sale | Common Stock | 1,791 | $627 | $1.1M | 126,393.358 |
| 2026-08-21 | Open-market sale | Common Stock | 2,147 | $629 | $1.3M | 124,246.358 |
| 2026-08-21 | Open-market sale | Common Stock | 321 | $629 | $201.9K | 123,925.358 |
| 2026-08-20 | Option exercise/conversion | Stock Option (Right to Buy) | 10,000 | — | — | 10,275 |
| 2026-08-21 | Option exercise/conversion | Stock Option (Right to Buy) | 10,000 | — | — | 275 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-20 | Option exercise/conversion (10,000 shares) |
| 2026-08-20 | Open-market sale (909 shares) |
| 2026-08-20 | Open-market sale (821 shares) |
| 2026-08-20 | Open-market sale (1,314 shares) |
| 2026-08-20 | Open-market sale (2,601 shares) |
| 2026-08-20 | Open-market sale (1,250 shares) |
| 2026-08-20 | Open-market sale (1,035 shares) |
| 2026-08-20 | Open-market sale (1,430 shares) |
| 2026-08-20 | Open-market sale (560 shares) |
| 2026-08-20 | Open-market sale (80 shares) |
| 2026-08-21 | Option exercise/conversion (10,000 shares) |
| 2026-08-21 | Open-market sale (2,727 shares) |
| 2026-08-21 | Open-market sale (3,014 shares) |
| 2026-08-21 | Open-market sale (1,791 shares) |
| 2026-08-21 | Open-market sale (2,147 shares) |
| 2026-08-21 | Open-market sale (321 shares) |
| 2026-08-20 | Option exercise/conversion (10,000 shares) |
| 2026-08-21 | Option exercise/conversion (10,000 shares) |
Keywords
insider transaction, Form 4, TMO, THERMO FISHER SCIENTIFIC INC., bearish, Marc N Casper
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