Bonnie L. Bassler

Companies

• Cidara TherapeuticsBoard member Jan 25, 2021 to now¹
• Royalty Pharma plcBoard member Jun 15, 2020 to now²
• Regeneron PharmaceuticalsBoard member Sep 12, 2016 to now³
• Kaleido Biosciences, Inc.Board member Feb 27, 2019 to Jul 1, 2021⁴

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 RPRX79,823 shares⁵$4.8M at $60.48Sep 30, 2026
• Regeneron Pharmaceuticals REGN1,703 shares⁶$1.3M at $790.61Jan 7, 2026
• Cidara Therapeutics CDTX0 shares⁷Jan 7, 2026

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

Recent filings

• Sep 30, 2026Granted 642 shares at $58.41 of Royalty Pharma plc⁵
• Jun 30, 2026Granted 689 shares at $54.40 of Royalty Pharma plc⁸
• Jun 5, 2026Granted 4,545 shares of Royalty Pharma plc⁹
• Mar 31, 2026Granted 815 shares at $45.98 of Royalty Pharma plc¹⁰
• Jan 7, 2026Sold 1,500 shares at $800.00 of Regeneron Pharmaceuticals⁶
• Jan 7, 2026Exercised options 1,500 shares at $374.12 of Regeneron Pharmaceuticals⁶
• Jan 7, 2026Returned to company 15 shares at $221.50 of Cidara Therapeutics⁷
• Jan 2, 2026Granted 155 shares of Regeneron Pharmaceuticals¹¹
• Dec 31, 2025Granted 967 shares at $38.74 of Royalty Pharma plc¹²
• Nov 20, 2025Sold 760 shares at $750.00 of Regeneron Pharmaceuticals¹³
• Nov 20, 2025Exercised options 760 shares at $371.40 of Regeneron Pharmaceuticals¹³
• Sep 30, 2025Granted 1,047 shares at $35.79 of Royalty Pharma plc¹⁴
• Jun 30, 2025Granted 1,064 shares at $35.24 of Royalty Pharma plc¹⁵
• May 13, 2025Granted 7,614 shares of Royalty Pharma plc¹⁶
• Mar 31, 2025Granted 1,141 shares at $32.87 of Royalty Pharma plc¹⁷
• Jan 2, 2025Granted 166 shares of Regeneron Pharmaceuticals¹⁸
• Dec 31, 2024Granted 1,503 shares at $24.94 of Royalty Pharma plc¹⁹
• Sep 30, 2024Granted 1,342 shares at $27.92 of Royalty Pharma plc²⁰
• Aug 15, 2024Sold 756 shares at $1,170.00 of Regeneron Pharmaceuticals²¹
• Aug 15, 2024Exercised options 756 shares at $371.40 of Regeneron Pharmaceuticals²¹
• Aug 2, 2024Sold 756 shares at $1,115.00 of Regeneron Pharmaceuticals²²
• Aug 2, 2024Exercised options 756 shares at $371.40 of Regeneron Pharmaceuticals²²
• Jun 28, 2024Granted 1,399 shares at $26.80 of Royalty Pharma plc²³
• Jun 24, 2024Sold 756 shares at $1,062.00 of Regeneron Pharmaceuticals²⁴
• Jun 24, 2024Exercised options 756 shares at $371.40 of Regeneron Pharmaceuticals²⁴