InsiderFlow

Stephen Williamson

TMO

Stephen Williamson serves as Sr. VP and CFO at Thermo Fisher Scientific Inc. (TMO). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

7 trades

$72.73M

Net Position

Net Seller

$72.73M

Companies Traded

1

TMO

Active Period

Nov 2021 – Sep 2025

7 total trades

Most Recent

Sell TMO

Sep 2, 2025 · $383.6K

Stephen Williamson's Insider Trading at Thermo Fisher Scientific Inc. (TMO)

Buys

0 · $0.00

Sells

7 · $72.73M

Total Shares Bought

0

Total Shares Sold

122,925

TMO Price Chart
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DateTypeValue
Sep 2, 2025 Sell$383.6K
Mar 4, 2025 Sell$855.0K
Feb 5, 2025 Sell$11.58M
May 15, 2024 Sell$12.96M
Aug 2, 2023 Sell$16.12M
Aug 16, 2022 Sell$16.44M
Nov 3, 2021 Sell$14.39M