BS
Bryan Supran (EVP, CLO and Secretary) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Alnylam Pharmaceuticals, Inc. (ALNY). The largest single filing was $399K of ALNY (1,758 sh × $226.88, as filed), executed Oct 2. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
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returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
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measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$399K
shares × price, as filed
Last traded
Oct 2
Filed Oct 6
Median ADV $470.9M across their filed names
Open performance→Volume by month
Buys $0
Sells $399K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
1 filing
Sector per market data · by filing · past 12 months
Most traded names
ALNYRecent filings
ALNYSALE
Alnylam Pharmaceuticals, Inc.
View filing →
$399K1,758 sh × $226.88
Exec Oct 2
Filed Oct 6 · 4:12 PM ET