Barbara Gayle Duncan

Companies

• Halozyme TherapeuticsBoard member Feb 6, 2023 to now¹
• Atea Pharmaceuticals, Inc.Board member Oct 29, 2020 to now²
• Ovid Therapeutics Inc.Board member Jun 15, 2017 to now³
• Fusion PharmaceuticalsBoard member Nov 3, 2020 to Jun 4, 2024⁴
• Jounce TherapeuticsBoard member Jan 26, 2017 to May 4, 2023⁵
• Adaptimmune (United Kingdom)Board member Jun 23, 2016 to Jul 1, 2022⁶
• Innoviva, Inc.Board member Nov 21, 2016 to Apr 24, 2017⁷
• Intercept PharmaceuticalsChief Accounting Officer Jul 7, 2016 to Oct 5, 2016⁸
• Intercept PharmaceuticalsChief financial officer Oct 10, 2012 to Apr 6, 2016⁹

Holdings

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

Shares held

• HTHalozyme Therapeutics HALO23,715 shares¹⁰$2.9M at $122.96May 5, 2026
• APAtea Pharmaceuticals, Inc. AVIR92,350 shares¹¹$398.0K at $4.31Jun 18, 2026

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

Recent filings

• Jun 18, 2026Exercised options 29,600 shares of Atea Pharmaceuticals, Inc.¹¹
• May 5, 2026Granted 3,796 shares of Halozyme Therapeutics¹⁰
• Jun 20, 2025Exercised options 29,600 shares of Atea Pharmaceuticals, Inc.¹²
• May 1, 2025Granted 4,165 shares of Halozyme Therapeutics¹³
• Jun 16, 2024Exercised options 33,150 shares of Atea Pharmaceuticals, Inc.¹⁴
• Apr 25, 2024Granted 6,501 shares of Halozyme Therapeutics¹⁵
• May 5, 2023Granted 8,065 shares of Halozyme Therapeutics¹⁶
• Feb 3, 2023Granted 1,188 shares of Halozyme Therapeutics¹⁷