Summary
Updated Aug 30, 2026
Donald W. Degolyer is Director of Emergent BioSolutions Inc. (EBS). 4 SEC Form 4 filings on record going back to 2024, most recently on 4 May 2026. Most recent open-market trade: sold $9K of EBS on 4 May 2026. Lifetime open-market sales: $658K.
Recent Transactions
6Every recent SEC Form 4 transaction Donald W. Degolyer has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Donald W. Degolyer files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Coleen Glessner - $306K of EBS open-market activity in the last 12 months
- Sujata Tyagi Dayal - $201K of EBS open-market activity in the last 12 months
- Kathryn C. Zoon - $144K of EBS open-market activity in the last 12 months
- Keith Katkin - $128K of EBS open-market activity in the last 12 months
- Paul Anthony Williams - $59K of EBS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Donald W. Degolyer?
Donald W. Degolyer is a corporate insider, tracked as Director of Emergent BioSolutions Inc. (EBS). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Donald W. Degolyer last file a Form 4?
The most recent primary Form 4 on record is dated 4 May 2026, one of 4 filings going back to 2024.
Has Donald W. Degolyer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($658K) across all tracked filings.
Where can I see all of Donald W. Degolyer's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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