Thermo Fisher (NYSE: TMO) CEO exercises options, sells 275 shares
Rhea-AI Filing Summary
THERMO FISHER SCIENTIFIC INC. (TMO) reported that Chairman & CEO Marc N. Casper exercised a stock option for 275 shares of common stock at an exercise price of $309.63 per share and disposed of the derivative position, leaving 0 option shares outstanding from that grant. The resulting 275 common shares were then sold in multiple open-market transactions totaling 275 shares at weighted average prices between approximately $625.00 and $628.89 per share, all on August 24, 2026.
The transactions were effected under a Rule 10b5-1 trading plan adopted on April 27, 2026. In addition, indirect holdings are reported as 5,000 shares held by the MNC 2020 Irrevocable Trust and 11,300 shares held by the Alison Casper 2020 Irrevocable Trust, with the reporting person disclaiming beneficial ownership except to any pecuniary interest.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 275 shares ($87K approx. pre-tax spread)
Exercise and Sale
8 txns
Insider
CASPER MARC N
Role
Chairman & CEO
Sold
275 shs ($172K)
Approx. gross sale proceeds
$172K
Approx. exercise cost
$85K
Approx. pre-tax spread
$87K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F7 | 275 | $0.00 | $0.00 |
| Exercise | Common Stock | 275 | $309.63 | $85K |
| Sale | Common Stock F1, F2 | 101 | $625.41 | $63K |
| Sale | Common Stock F1, F3 | 33 | $626.59 | $21K |
| Sale | Common Stock F1, F4 | 79 | $628.01 | $50K |
| Sale | Common Stock F1, F5 | 62 | $628.74 | $39K |
| holding | Common Stock F6 | -- | -- | -- |
| holding | Common Stock F6 | -- | -- | -- |
Holdings After Transaction:
Stock Option (Right to Buy) — 0 shares (Direct);
Common Stock — 123,925.358 shares (Direct);
Common Stock — 5,000 shares (Indirect, By MNC 2020 Irrevocable Trust);
Common Stock — 11,300 shares (Indirect, By Alison Casper 2020 Irrevocable Trust)
Footnotes (7)
- F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 27, 2026.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $625.00 to $625.98, inclusive. The reporting person undertakes to provide to Thermo Fisher Scientific Inc. ("TMO"), any security holder of TMO or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3), (4) and (5) to this Form 4.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $626.25 to $627.21, inclusive.
- F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $627.43 to $628.34, inclusive.
- F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $628.48 to $628.89, inclusive.
- F6. The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.
- F7. The option vested in four equal installments on February 25, 2021, 2022, 2023, and 2024.
Key Figures
Option shares exercised: 275 shares
Option exercise price: $309.63 per share
Common shares sold at $625.41: 101 shares at $625.41 per share
+5 more
8 metrics
Option shares exercised
275 shares
Stock option for Thermo Fisher Scientific common stock exercised on August 24, 2026
Option exercise price
$309.63 per share
Exercise price of stock option converted into common stock
Common shares sold at $625.41
101 shares at $625.41 per share
Open-market sale of common stock on August 24, 2026
Common shares sold at $626.59
33 shares at $626.59 per share
Open-market sale of common stock on August 24, 2026
Common shares sold at $628.01
79 shares at $628.01 per share
Open-market sale of common stock on August 24, 2026
Common shares sold at $628.74
62 shares at $628.74 per share
Open-market sale of common stock on August 24, 2026
Indirect holdings by MNC 2020 Irrevocable Trust
5,000 shares
Indirect ownership of Thermo Fisher Scientific common stock
Indirect holdings by Alison Casper 2020 Irrevocable Trust
11,300 shares
Indirect ownership of Thermo Fisher Scientific common stock
Key Terms
Rule 10b5-1 trading plan, weighted average price, Irrevocable Trust, beneficial ownership, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Irrevocable Trust financial
"By MNC 2020 Irrevocable Trust"
An irrevocable trust is a legal arrangement where an owner transfers assets into a separate entity managed by a trustee and gives up the power to modify or reclaim those assets. For investors it matters because putting stock or other holdings into such a trust can change who controls and benefits from the assets, affect taxes and creditor protection, and influence how easy it is to sell or value those holdings—like placing valuables in a locked safe overseen by someone else.
beneficial ownership financial
"The reporting person disclaims beneficial ownership of the securities reported herein"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
stock option financial
"The option vested in four equal installments on February 25, 2021, 2022, 2023"
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
FAQ
What did TMO Chairman & CEO Marc N. Casper report in this Form 4?
He exercised a stock option for 275 shares of Thermo Fisher Scientific (TMO) common stock at $309.63 per share and sold all 275 shares in open-market transactions at weighted average prices between about $625.00 and $628.89 on August 24, 2026.
Was Marc N. Casper’s TMO trading under a Rule 10b5-1 plan?
Yes. The filing states the transactions were effected under a Rule 10b5-1 trading plan adopted by Marc N. Casper on April 27, 2026, indicating the sales followed a pre-established trading arrangement.
What happened to Marc N. Casper’s exercised stock option in TMO?
He exercised a stock option covering 275 shares of TMO common stock at an exercise price of $309.63 per share. After the exercise, the Form 4 shows 0 derivative shares remaining from that option, which was scheduled to expire on February 25, 2027.
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