David R. Epstein

Companies

• AgomAb Therapeutics NVBoard member Mar 18, 2026 to now¹
• Tempus AIBoard member Jun 13, 2024 to now²
• SeagenBoard member Nov 10, 2022 to Dec 15, 2023³
• SeagenChief executive officer Nov 10, 2022 to Dec 15, 2023³
• Senti Biosciences Holdings, Inc.Board member May 25, 2021 to Jul 15, 2022⁴
• Evelo Biosciences, Inc.Board member May 8, 2018 to Jun 30, 2022⁵
• Axcella Health (United States)Board member May 8, 2019 to Jun 3, 2022⁶
• Rubius Therapeutics (United States)Board member Jul 17, 2018 to May 13, 2022⁷
• Opy Acquisition Corp. IBoard member Oct 26, 2021 to Oct 26, 2021⁸
• International Flavors & FragrancesBoard member Jan 11, 2016 to Nov 4, 2020⁹

Holdings

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

Shares held

• Tempus AI TEM30,844 shares¹⁰$2.0M at $64.80Sep 1, 2026
• SBSenti Biosciences Holdings, Inc. SNTI123,252 shares¹¹$27.4K at $0.22Jun 8, 2022
• Seagen SGEN0 shares¹²Dec 14, 2023
• Axcella Health (United States)209,756 shares¹³May 19, 2022
• EBEvelo Biosciences, Inc.93,932 shares¹⁴Jun 30, 2022
• Rubius Therapeutics (United States)4,720,012 shares¹⁵Apr 21, 2022
• OAOpy Acquisition Corp. I0 shares¹⁶Oct 26, 2021

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

Recent filings

• Sep 1, 2026Sold 250 shares at $65.55 of Tempus AI¹⁰
• Aug 3, 2026Sold 370 shares at $43.40 of Tempus AI¹⁷
• Jun 1, 2026Sold 250 shares at $49.40 of Tempus AI¹⁸
• May 21, 2026Granted 5,913 shares of Tempus AI¹⁹
• Mar 2, 2026Sold 250 shares at $50.69 of Tempus AI²⁰
• Feb 2, 2026Sold 370 shares at $59.41 of Tempus AI²¹
• Dec 1, 2025Sold 250 shares at $75.55 of Tempus AI²²
• Nov 3, 2025Sold 370 shares at $90.00 of Tempus AI²³
• Sep 2, 2025Sold 250 shares at $73.64 of Tempus AI²⁴
• Aug 1, 2025Sold 370 shares at $55.16 of Tempus AI²⁵
• Jun 2, 2025Sold 250 shares at $55.20 of Tempus AI²⁶
• May 20, 2025Granted 1,997 shares of Tempus AI²⁷
• May 1, 2025Sold 370 shares at $53.50 of Tempus AI²⁸
• Mar 17, 2025Sold 990 shares at $46.83 of Tempus AI²⁹
• Mar 3, 2025Sold 250 shares at $57.52 of Tempus AI³⁰
• Feb 3, 2025Sold 370 shares at $53.31 of Tempus AI³¹
• Dec 11, 2024Sold 620 shares at $41.81 of Tempus AI³²
• Jun 13, 2024Granted 28,514 shares of Tempus AI³³
• Dec 14, 2023Returned to company 16,407 shares at $229.00 of Seagen¹²
• Nov 10, 2023Sold 10,620 shares at $213.01 of Seagen³⁴
• Aug 15, 2023Granted 39,650 shares of Seagen³⁵
• Nov 9, 2022Granted 107,389 shares of Seagen³⁶
• Jun 30, 2022Exercised options 2,874 shares of Evelo Biosciences, Inc.¹⁴
• Jun 30, 2022Exercised options 2,053 shares of Evelo Biosciences, Inc.¹⁴
• Jun 8, 2022Granted 112,519 shares of Senti Biosciences Holdings, Inc.¹¹