Bonnie L Bassler, Director at Regeneron, holds 1.38K shares in Regeneron (Ticker: REGN), holds ― shares in Kaleido Biosciences (Ticker: KLDO), holds 47.76K shares in Royalty Pharma (Ticker: RPRX). Most recently, Bonnie L Bassler Sold ― shares of Regeneron on Feb 26, 2024 for an estimated value of 836.28K.