BB
Insider
Bonnie L Bassler
DirectorBonnie L Bassler (Director) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in Regeneron Pharmaceuticals, Inc. (REGN). The largest single filing was $1.2M of REGN (1,500 sh × $800.00, as filed), executed Jan 7.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
2
0 buys · 2 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$1.8M
shares × price, as filed
Last traded
Jan 7
Filed Jan 8
Median ADV $702.3M across their filed names
Open performance→Volume by month
Buys $0
Sells $1.8M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
2 filings
Sector per market data · by filing · past 12 months
Most traded names
REGNRecent filings
REGNSALE
Regeneron Pharmaceuticals, Inc.
View filing →
$1.2M1,500 sh × $800.00
Exec Jan 7
Filed Jan 8 · 5:30 PM ET REGNSALE Regeneron Pharmaceuticals, Inc. View filing → $570K
760 sh × $750.00
Exec Nov 20 2025
Filed Nov 24 2025 · 5:30 PM ET