Sarah Boyce

Companies

• Atrium Therapeutics, Inc.Board member Feb 26, 2026 to now¹
• Contineum Therapeutics, Inc.Board member Jun 24, 2024 to now²
• Avidity Biosciences, Inc.Board member Jun 11, 2020 to now³
• Avidity Biosciences, Inc.Chief executive officer Jun 11, 2020 to now³
• Avidity Biosciences, Inc.President Jun 11, 2020 to now³
• OmniAb, Inc.Board member Nov 3, 2022 to Jun 21, 2024⁴
• LIGAND PHARMACEUTICALS INCBoard member Oct 15, 2019 to Jun 13, 2022⁵
• Bruker Cellular Analysis, Inc.Board member Jul 16, 2020 to May 18, 2021⁶
• IONIS PHARMACEUTICALS INCChief Business Officer Jan 5, 2015 to Jan 17, 2018⁷

Holdings

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

Shares held

• ATAtrium Therapeutics, Inc. RNA138,668 shares⁸$1.1M at $7.72Sep 18, 2026
• LPLIGAND PHARMACEUTICALS INC LGND2,892 shares⁹$865.2K at $299.17Nov 1, 2022
• OOmniAb, Inc. OABIW104,381 shares¹⁰$17.7K at $0.17Jun 18, 2024
• ABAvidity Biosciences, Inc.0 shares¹¹Feb 27, 2026

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

Recent filings

• Sep 18, 2026Shares withheld for tax 126,418 shares at $8.95 of Atrium Therapeutics, Inc.⁸
• Feb 27, 2026Returned to company 474,861 shares of Avidity Biosciences, Inc.¹¹
• Jan 21, 2026Sold 7,993 shares at $72.45 of Avidity Biosciences, Inc.¹²
• Jan 21, 2026Sold 6,394 shares at $72.45 of Avidity Biosciences, Inc.¹²
• Jan 7, 2026Sold 8,576 shares at $72.23 of Avidity Biosciences, Inc.¹³
• Dec 18, 2025Gift 29,159 shares of Avidity Biosciences, Inc.¹⁴
• Dec 17, 2025Shares withheld for tax 15,742 shares at $71.87 of Avidity Biosciences, Inc.¹⁴
• Dec 17, 2025Granted 31,000 shares of Avidity Biosciences, Inc.¹⁴
• Sep 5, 2025Sold 50,000 shares at $49.95 of Avidity Biosciences, Inc.¹⁵
• Sep 5, 2025Exercised options 50,000 shares at $1.24 of Avidity Biosciences, Inc.¹⁵
• Aug 28, 2025Sold 25,000 shares at $49.39 of Avidity Biosciences, Inc.¹⁶
• Aug 28, 2025Exercised options 25,000 shares at $1.24 of Avidity Biosciences, Inc.¹⁶
• Mar 20, 2025Sold 31,540 shares at $31.06 of Avidity Biosciences, Inc.¹⁷
• Jan 21, 2025Sold 5,659 shares at $28.59 of Avidity Biosciences, Inc.¹⁸
• Jan 21, 2025Sold 4,738 shares at $28.59 of Avidity Biosciences, Inc.¹⁸
• Jan 6, 2025Granted 82,500 shares of Avidity Biosciences, Inc.¹⁹
• Dec 18, 2024Sold 31,855 shares at $32.66 of Avidity Biosciences, Inc.²⁰
• Sep 23, 2024Sold 32,880 shares at $44.00 of Avidity Biosciences, Inc.²¹
• Sep 19, 2024Granted 62,500 shares of Avidity Biosciences, Inc.²¹
• Sep 19, 2024Granted 62,500 shares of Avidity Biosciences, Inc.²¹
• Aug 6, 2024Sold 28,000 shares at $43.35 of Avidity Biosciences, Inc.²²
• Aug 6, 2024Exercised options 28,000 shares at $1.24 of Avidity Biosciences, Inc.²²
• Jul 9, 2024Sold 28,000 shares at $39.93 of Avidity Biosciences, Inc.²³
• Jul 9, 2024Exercised options 28,000 shares at $1.24 of Avidity Biosciences, Inc.²³
• Jun 18, 2024Sold 32,074 shares at $39.13 of Avidity Biosciences, Inc.²⁴