Williamson Stephen 4
4 · THERMO FISHER SCIENTIFIC INC. · Filed Feb 27, 2026
Research Summary
AI-generated summary of this filing
Thermo Fisher (TMO) CFO Stephen Williamson Receives Award
What Happened
Stephen Williamson, Senior Vice President and Chief Financial Officer of Thermo Fisher Scientific (TMO), was reported as acquiring 1,534 shares via a performance-based restricted stock unit (RSU) award on 2026-02-25. The Form 4 shows an acquisition at $0.00 per share (award grant, not a purchase). The compensation committee certified achievement of the underlying performance criteria on 2026-02-25.
Key Details
- Transaction type: A (award/grant of RSUs).
- Transaction date (period of report): 2026-02-25; Form 4 filed 2026-02-27 (timely).
- Shares involved: 1,534 RSUs acquired at $0.00 per share (award).
- Vesting: Award vests in three equal tranches on 2026-02-28, 2027-02-28 and 2028-02-28 (footnote F1). The first tranche vests three days after certification.
- Beneficial ownership: Reporting person disclaims direct beneficial ownership of the securities except to the extent of any pecuniary interest (footnote F2).
- Shares owned after transaction: Not specified in the provided filing excerpt.
Context
This was an award/vesting event (not an open-market buy or sale). RSU awards are compensation and may vest over time; they do not necessarily signal an immediate purchase decision by the insider. The filing indicates certification of performance metrics that triggered the RSU award and a standard multi-year vesting schedule.
Insider Transaction Report
- Award
Common Stock
[F1]2026-02-25+1,534→ 33,421.193 total
- 12,674(indirect: By SLAT)
Common Stock
[F2]
Footnotes (2)
- [F1]Shares represent a performance-based restricted stock unit award granted on February 19, 2025. On February 25, 2026, the Compensation Committee certified achievement of the applicable performance criteria. The award vests in three equal tranches on February 28, 2026, 2027 and 2028, in accordance with the terms of the award agreement.
- [F2]The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein.