DeGolyer Donald W
SEC Form 4 insider trading activity
DeGolyer Donald W has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2025. 3 of those filings fall inside the rolling window. Most recent filing: Oct 7, 2026.
On the most recent filing, DeGolyer Donald W is listed as Director at Emergent BioSolutions Inc. Inside the rolling window, DeGolyer Donald W reported no open-market purchases and 3 open-market sales totaling $444K in EBS. The largest disclosed transaction in the window is a sale of 17,801 EBS shares on Nov 10, 2025, worth $188K.
Companies traded
Other insiders at EBS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$444K
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has DeGolyer Donald W made?
DeGolyer Donald W has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company since 2025.
Which companies does DeGolyer Donald W trade?
DeGolyer Donald W has filed SEC Form 4 disclosures for 1 company, including EBS.
When was DeGolyer Donald W's most recent SEC Form 4 filing?
DeGolyer Donald W's most recent SEC Form 4 filing on Tracefour is dated Oct 7, 2026.
What is DeGolyer Donald W's total buy and sell value in the current window?
Inside the rolling retention window, DeGolyer Donald W bought $0 and sold $444K based on SEC Form 4 filings.
What was DeGolyer Donald W's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 17,801 EBS shares on 2025-11-10, worth $188K, per SEC Form 4 filings.