Thomas W. Beetham

Companies

• Viridian Therapeutics, Inc.\DEChief operating officer Nov 1, 2023 to now¹
• Magenta TherapeuticsOfficer Jun 15, 2021 to Dec 2, 2022²
• Kiniksa Pharmaceuticals International, plcGeneral counsel May 23, 2018 to Mar 23, 2021³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• MTMagenta Therapeutics DNTH19,897 shares⁴$1.5M at $74.77Nov 30, 2022
• VTViridian Therapeutics, Inc.\DE VRDN13,361 shares⁵$276.8K at $20.72Mar 3, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 3, 2026Shares withheld for tax 3,138 shares at $29.32 of Viridian Therapeutics, Inc.\DE⁶
• Mar 3, 2026Shares withheld for tax 3,048 shares at $30.19 of Viridian Therapeutics, Inc.\DE⁵
• Mar 3, 2026Exercised options 9,409 shares of Viridian Therapeutics, Inc.\DE⁶
• Sep 27, 2024Bought 5,000 shares at $23.41 of Viridian Therapeutics, Inc.\DE⁷
• Nov 30, 2022Granted 3,000 shares at $0.94 of Magenta Therapeutics⁴
• May 31, 2022Granted 3,000 shares at $0.99 of Magenta Therapeutics⁸