Summary
Updated Aug 31, 2026
Joseph L. Farmer is President and Chief Operating Officer of Zenas BioPharma, Inc. (ZBIO). 1 SEC Form 4 filing on record, dated 17 June 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Joseph L. Farmer has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Joseph L. Farmer go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Joseph L. Farmer 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
- Jason Raleigh Nunn - $1.20M 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 Joseph L. Farmer?
Joseph L. Farmer is a corporate insider, tracked as President and Chief Operating Officer of Zenas BioPharma, Inc. (ZBIO). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Joseph L. Farmer submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Joseph L. Farmer'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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