Tomas J. Heyman

Companies

• Legend BiotechBoard member Mar 18, 2026 to now¹
• ExelixisBoard member Jun 2, 2023 to now²
• OptiNose, Inc.Board member Dec 4, 2020 to now³
• Akero Therapeutics, Inc.Board member Jun 11, 2020 to now⁴
• Xilio Therapeutics, Inc.Board member Sep 16, 2022 to Jun 13, 2023⁵
• Invivyd, Inc.Board member Aug 5, 2021 to May 25, 2023⁶

Holdings

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

Shares held

• Exelixis EXEL50,649 shares⁷$3.2M at $62.59May 27, 2026
• LBLegend Biotech LEGN53,720 shares⁸$991.5K at $18.46Sep 24, 2026
• ATAkero Therapeutics, Inc.0 shares⁹Dec 9, 2025

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

Recent filings

• Sep 24, 2026Granted 20,986 shares of Legend Biotech⁸
• May 27, 2026Granted 8,367 shares of Exelixis⁷
• Dec 9, 2025Returned to company 9,398 shares of Akero Therapeutics, Inc.⁹
• Jun 3, 2025Granted 9,398 shares of Akero Therapeutics, Inc.¹⁰
• May 29, 2025Granted 9,812 shares of Exelixis¹¹
• May 21, 2025Sold 4,544 shares at $44.29 of Exelixis¹²
• May 31, 2024Granted 18,838 shares of Exelixis¹³
• Jun 16, 2023Sold 26,000 shares at $54.67 of Akero Therapeutics, Inc.¹⁴
• Jun 16, 2023Exercised options 26,000 shares at $25.04 of Akero Therapeutics, Inc.¹⁴
• May 31, 2023Granted 18,176 shares of Exelixis¹⁵