DD
Donald W DeGolyer (Director) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Emergent BioSolutions Inc. (EBS). The largest single filing was $188K of EBS (17,801 sh × $10.54, as filed), executed Nov 10 2025. 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
–
returns measure stock purchases only
Filings, ttm
3
0 buys · 3 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$248K
shares × price, as filed
Last traded
Oct 7
Filed Oct 7
Median ADV $8.3M across their filed names
Open performance→Volume by month
Buys $0
Sells $435K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
3 filings
Sector per market data · by filing · past 12 months
Most traded names
EBS
Emergent BioSolutions Inc.
EBS · 0 buys · 4 sells
4 filings
Recent filings
EBSSALE
Emergent BioSolutions Inc.
View filing →
$126K17,800 sh × $7.09
Exec Oct 7
Filed Oct 7 · 3:45 PM ET EBSSALE Emergent BioSolutions Inc. View filing → $121K
14,527 sh × $8.36
Exec May 1
Filed May 4 · 5:30 PM ET EBSSALE Emergent BioSolutions Inc. View filing → $188K
17,801 sh × $10.54
Exec Nov 10 2025
Filed Nov 12 2025 · 5:30 PM ET EBSSALE Emergent BioSolutions Inc. View filing → $273K
25,000 sh × $10.91
Exec Nov 12 2024
Filed Nov 14 2024 · 5:30 PM ET