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Stephen Williamson

Sr. VP and CFO · Thermo Fisher Scientific

Stephen Williamson (Sr. VP and CFO) filed 1 Form 4 report in the past 24 months (0 purchases, 1 sale), most often in Thermo Fisher Scientific Inc. (TMO). The largest single filing was $11.6M of TMO (19,650 sh across 2 lots, as filed), executed Feb 3 2025. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$11.6M
shares × price, as filed
Last traded
Feb 4 2025
Filed Feb 5 2025

Median ADV $1.4B across their filed names

Open performance→
Volume by month
$11.6M$5.8M$0Dec 2024Jun 2025Dec 2025Jun 2026Feb 2025 · sells $11.6M
Buys $0 Sells $11.6M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 1 filing

Sector per market data · by filing · past 24 months

Most traded names
TMO Thermo Fisher Scientific Inc. TMO · 0 buys · 1 sell 1 filing
Recent filings
TMOSALE Thermo Fisher Scientific Inc. View filing → $11.6M
19,650 sh across 2 lots
Exec Feb 3 2025
Filed Feb 5 2025 · 5:30 PM ET