Errol B. Desouza

Companies

• Alector (United States)Board member Mar 21, 2024 to now¹
• Royalty Pharma plcBoard member Jun 15, 2020 to now²
• Korsana Biosciences, Inc.Board member May 19, 2021 to Dec 4, 2023³
• GYRE THERAPEUTICS, INC.Board member Apr 11, 2006 to Oct 5, 2021⁴
• ALBIREO PHARMA, INC.Board member Apr 2, 2010 to Oct 2, 2015⁵
• ALBIREO PHARMA, INC.Chief executive officer Apr 2, 2010 to Oct 2, 2015⁵
• PALATIN TECHNOLOGIES INCBoard member Jul 5, 2006 to Jul 23, 2010⁶
• ALBIREO PHARMA, INC.President Apr 2, 2010 to Apr 2, 2010⁵
• IDEXX Laboratories, Inc.Board member Feb 1, 2006 to May 1, 2009⁷

Holdings

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

Shares held

• RPRoyalty Pharma plc RPRX81,352 shares⁸$4.9M at $60.48May 13, 2025
• KBKorsana Biosciences, Inc. KRSA30,000 shares⁹$975.3K at $32.51Nov 30, 2023
• AUAlector (United States) ALEC98,650 shares¹⁰$190.9K at $1.94Jun 17, 2026
• GTGYRE THERAPEUTICS, INC. GYRE29,801 shares¹¹$183.0K at $6.14Oct 1, 2021

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

Recent filings

• Jun 17, 2026Granted 28,700 shares of Alector (United States)¹⁰
• Jun 11, 2025Granted 28,700 shares of Alector (United States)¹²
• May 13, 2025Granted 7,614 shares of Royalty Pharma plc⁸
• Jun 7, 2024Granted 9,293 shares of Royalty Pharma plc¹³
• Mar 19, 2024Granted 41,250 shares of Alector (United States)¹⁴
• Nov 30, 2023Granted 30,000 shares of Korsana Biosciences, Inc.⁹
• Nov 30, 2023Granted 20,000 shares of Korsana Biosciences, Inc.⁹
• Jun 23, 2023Granted 7,747 shares of Royalty Pharma plc¹⁵
• Jun 24, 2022Granted 6,328 shares of Royalty Pharma plc¹⁶
• Oct 1, 2021Granted 3,588 shares of GYRE THERAPEUTICS, INC.¹¹