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Williamson Stephen

No open-market purchases or sales filed in the past year.

Current role at each company

Open-market trades in the past year

Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.

Bought
–
0 filings
Sold
–
0 filings
Net
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Bought minus sold
Companies
0
With open-market trades

Trades

Every Form 4 that lists Williamson Stephen as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.

TMO Thermo Fisher Scientific Inc.

Retiring Sr. VP and CFO5 trades

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Feb 5, 2025 (view filing)Feb 3-42 daysWilliamson StephenSr. VP and CFOSSale−19.6K$589.36−$11.6M−41.9%27.3K after2 lots10b5-1
May 15, 2024 (view filing)May 132 daysWilliamson StephenSr. VP and CFOSSale−21.9K$591.27−$13.0M−37.5%36.5K after10b5-1
Aug 2, 2023 (view filing)Jul 31-Aug 12 daysWilliamson StephenSr. VP and CFOSSale−29.1K$553.82−$16.1M−51.5%27.4K after2 lots10b5-1
Aug 16, 2022 (view filing)Aug 12-154 daysWilliamson StephenSr. VP and CFOSSale−27.3K$602.29−$16.4M−38.3%43.9K after11 lots
Nov 3, 2021 (view filing)Nov 21 dayWilliamson StephenSr. VP and CFOSSale−22.6K$638.10−$14.4M−35.9%40.2K after10 lots