Quick Takeaways
- This page summarizes Stephen Williamson's Form 4 filing for THERMO FISHER SCIENTIFIC INC. (TMO).
- 2 reported transactions and 0 derivative rows are listed below.
- Filing timestamp: 02 Mar 2026, 16:04.
Stephen Williamson - 28 Feb 2026 Form 4 Insider Report for THERMO FISHER SCIENTIFIC INC. (TMO)
- Signature
- /s/ Melodie T. Morin, Attorney-in-Fact for Stephen Williamson
- Issuer symbol
- TMO
- Transactions as of
- 28 Feb 2026
- Net transactions value
- -$480,356
- Form type
- 4
- Filing time
- 02 Mar 2026, 16:04:53 UTC
- Previous filing
- 27 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Stephen Williamson filed Form 4 for THERMO FISHER SCIENTIFIC INC. (TMO) on 02 Mar 2026."
What Changed
- Previous filing in this sequence was filed on 27 Feb 2026.
- Current net transaction value: -$480,356.
Why This Matters
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Official SEC Source
Reporting Owners (1)
| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Williamson Stephen | Retiring Sr. VP and CFO | 168 THIRD AVENUE, WALTHAM | /s/ Melodie T. Morin, Attorney-in-Fact for Stephen Williamson | 02 Mar 2026 | 0001648929 |
Transactions Table
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TMO | Common Stock | Tax liability | $351,605 | -675 | -2% | $521.11 | 32,746 | 28 Feb 2026 | Direct | |
| transaction | TMO | Common Stock | Tax liability | $128,750 | -247 | -0.75% | $521.11 | 32,499 | 28 Feb 2026 | Direct | |
| holding | TMO | Common Stock | 12,674 | 28 Feb 2026 | By SLAT | F1 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Stephen Williamson is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
Explanation of Responses:
| Id | Content |
|---|---|
| F1 | The reporting person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of any pecuniary interest therein. |