Summary
Updated Aug 30, 2026
Jason Raleigh Nunn files SEC Form 4 reports at Zenas BioPharma, Inc. (ZBIO). 2 SEC Form 4 filings on record going back to 2025, most recently on 17 June 2026. Most recent open-market trade: bought $1.20M of ZBIO on 14 October 2025. Lifetime open-market purchases: $1.20M.
Recent Transactions
1Every recent SEC Form 4 transaction Jason Raleigh Nunn 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 Jason Raleigh Nunn 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.
- Fairmount Funds Management LLC - $9.01M of ZBIO open-market activity in the last 12 months
- Hongbo Lu - $8.15M of ZBIO open-market activity in the last 12 months
- Leon O. Moulder Jr. - $4.89M of ZBIO open-market activity in the last 12 months
- SR ONE CAPITAL MANAGEMENT, LLC - $2.40M of ZBIO open-market activity in the last 12 months
- Patrick G. Enright - $2.25M of ZBIO open-market activity in the last 12 months
- Patricia L. Allen - $500K of ZBIO 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 Jason Raleigh Nunn?
Jason Raleigh Nunn is a corporate insider of Zenas BioPharma, Inc. (ZBIO). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Jason Raleigh Nunn submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Jason Raleigh Nunn been buying or selling stock?
Recorded transactions: 1 open-market purchase ($1.20M) and 0 open-market sales across all tracked filings.
Where can I see all of Jason Raleigh Nunn'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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