Follow the people · Insider
Michael D. Shafer
Michael D. Shafer files insider transactions with the SEC as an executive vice president of Thermo Fisher Scientific (TMO). We hold 2 disclosed purchases and sales filed since 27 August 2024, 1 of them in the last 90 days.
- Files forTMO
- Disclosed buys and sells2 in all, 1 in the last 90 days
- Last disclosure1 September 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 23 August 2024 — 28 August 2026Executive Vice President · Thermo Fisher Scientific (TMO)45 Form 4 lines · source: SEC Form 4
Everything they disclosed
45 entries, newest first — one per disclosure report, one per Form 4 line- had shares withheld for tax on 162 shares of Thermo Fisher ScientificSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- had shares withheld for tax on 211 shares of Thermo Fisher ScientificSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- had shares withheld for tax on 190 shares of Thermo Fisher ScientificSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- had shares withheld for tax on 227 shares of Thermo Fisher ScientificSEC Form 41 September 2026Common Stock · traded 28 August 2026 · filed 1 September 2026
- exercised options over 11,200 shares of Thermo Fisher ScientificSEC Form 413 August 2026Common Stock · traded 11 August 2026 · filed 13 August 2026
- ▼ sold on the open market 11,200 shares of Thermo Fisher ScientificSEC Form 413 August 2026Common Stock · traded 11 August 2026 · filed 13 August 2026
- exercised options over 14,300 shares of Thermo Fisher ScientificSEC Form 413 August 2026Common Stock · traded 11 August 2026 · filed 13 August 2026
- ▼ sold on the open market 14,300 shares of Thermo Fisher ScientificSEC Form 413 August 2026Common Stock · traded 11 August 2026 · filed 13 August 2026
- exercised options over 11,200 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 413 August 2026Stock Option (Right to Buy) · traded 11 August 2026 · filed 13 August 2026
- exercised options over 14,300 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 413 August 2026Stock Option (Right to Buy) · traded 11 August 2026 · filed 13 August 2026
- ▼ sold on the open market 1,607 shares of Thermo Fisher ScientificSEC Form 412 March 2026Common Stock · traded 11 March 2026 · filed 12 March 2026
- ▼ sold on the open market 1,607 shares of Thermo Fisher ScientificSEC Form 412 March 2026Common Stock · traded 11 March 2026 · filed 12 March 2026
- had shares withheld for tax on 98 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- had shares withheld for tax on 466 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- had shares withheld for tax on 252 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- had shares withheld for tax on 98 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- had shares withheld for tax on 466 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- had shares withheld for tax on 252 shares of Thermo Fisher ScientificSEC Form 42 March 2026Common Stock · traded 28 February 2026 · filed 2 March 2026
- was granted 1,569 shares of Thermo Fisher ScientificSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- was granted 3,129 shares of Thermo Fisher ScientificSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- was granted 13,698 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 427 February 2026Stock Option (Right to Buy) · traded 25 February 2026 · filed 27 February 2026
- was granted 13,698 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 427 February 2026Stock Option (Right to Buy) · traded 25 February 2026 · filed 27 February 2026
- was granted 1,569 shares of Thermo Fisher ScientificSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- was granted 3,129 shares of Thermo Fisher ScientificSEC Form 427 February 2026Common Stock · traded 25 February 2026 · filed 27 February 2026
- exercised options over 8,475 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 426 November 2025Stock Option (Right to Buy) · traded 25 November 2025 · filed 26 November 2025
- exercised options over 2,250 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 426 November 2025Stock Option (Right to Buy) · traded 25 November 2025 · filed 26 November 2025
- exercised options over 8,475 shares of Thermo Fisher ScientificSEC Form 426 November 2025Common Stock · traded 25 November 2025 · filed 26 November 2025
- ▼ sold on the open market 8,475 shares of Thermo Fisher ScientificSEC Form 426 November 2025Common Stock · traded 25 November 2025 · filed 26 November 2025
- exercised options over 2,250 shares of Thermo Fisher ScientificSEC Form 426 November 2025Common Stock · traded 25 November 2025 · filed 26 November 2025
- ▼ sold on the open market 2,250 shares of Thermo Fisher ScientificSEC Form 426 November 2025Common Stock · traded 25 November 2025 · filed 26 November 2025
- had shares withheld for tax on 145 shares of Thermo Fisher ScientificSEC Form 42 September 2025Common Stock · traded 28 August 2025 · filed 2 September 2025
- had shares withheld for tax on 162 shares of Thermo Fisher ScientificSEC Form 42 September 2025Common Stock · traded 28 August 2025 · filed 2 September 2025
- had shares withheld for tax on 176 shares of Thermo Fisher ScientificSEC Form 42 September 2025Common Stock · traded 28 August 2025 · filed 2 September 2025
- had shares withheld for tax on 114 shares of Thermo Fisher ScientificSEC Form 42 September 2025Common Stock · traded 28 August 2025 · filed 2 September 2025
- had shares withheld for tax on 245 shares of Thermo Fisher ScientificSEC Form 44 March 2025Common Stock · traded 28 February 2025 · filed 4 March 2025
- had shares withheld for tax on 110 shares of Thermo Fisher ScientificSEC Form 44 March 2025Common Stock · traded 28 February 2025 · filed 4 March 2025
- had shares withheld for tax on 636 shares of Thermo Fisher ScientificSEC Form 44 March 2025Common Stock · traded 28 February 2025 · filed 4 March 2025
- ▼ sold on the open market 1,780 shares of Thermo Fisher ScientificSEC Form 44 March 2025Common Stock · traded 3 March 2025 · filed 4 March 2025
- was granted 9,610 shares of Thermo Fisher Scientific (a derivative holding)SEC Form 421 February 2025Stock Option (Right to Buy) · traded 19 February 2025 · filed 21 February 2025
- was granted 1,568 shares of Thermo Fisher ScientificSEC Form 421 February 2025Common Stock · traded 19 February 2025 · filed 21 February 2025
- was granted 4,747 shares of Thermo Fisher ScientificSEC Form 421 February 2025Common Stock · traded 19 February 2025 · filed 21 February 2025
- had shares withheld for tax on 145 shares of Thermo Fisher ScientificSEC Form 429 August 2024Common Stock · traded 28 August 2024 · filed 29 August 2024
- had shares withheld for tax on 135 shares of Thermo Fisher ScientificSEC Form 429 August 2024Common Stock · traded 28 August 2024 · filed 29 August 2024
- had shares withheld for tax on 106 shares of Thermo Fisher ScientificSEC Form 429 August 2024Common Stock · traded 28 August 2024 · filed 29 August 2024
- had shares withheld for tax on 279 shares of Thermo Fisher ScientificSEC Form 427 August 2024Common Stock · traded 23 August 2024 · filed 27 August 2024
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.