Over the past 12 months, 7 insiders at Zenas BioPharma, Inc. filed 19 open-market SEC Form 4 transactions on ZBIO: 19 purchases worth $23.8M and 0 sales worth $0. Insiders have been net buyers over this period. The most recent filing was on Mar 31, 26.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 31, 26 | Hongbo LuDirector | BUY | 75.0K | $20.00 | $1.5M |
| Mar 31, 26 | Leon O Moulder JrChief Executive Officer | BUY | 34.0K | $19.31 | $657K |
| Mar 30, 26 | Leon O Moulder JrChief Executive Officer | BUY | 20.0K | $18.23 | $365K |
| Feb 13, 26 | Patricia L AllenDirector | BUY | 4.2K | $26.36 | $110K |
| Feb 12, 26 | Patricia L AllenDirector | BUY | 5.7K | $24.34 | $139K |
| Feb 11, 26 | Hongbo LuDirector | BUY | 26.0K | $22.50 | $585K |
| Feb 2, 26 | Leon O Moulder JrChief Executive Officer | BUY | 57.0K | $17.96 | $1.0M |
| Jan 9, 26 | Leon O Moulder JrChief Executive Officer | BUY | 20.0K | $16.55 | $331K |
| Jan 8, 26 | Leon O Moulder JrChief Executive Officer | BUY | 30.0K | $16.30 | $489K |
| Jan 7, 26 | Leon O Moulder JrChief Executive Officer | BUY | 50.0K | $16.38 | $819K |
| Oct 9, 25 | Patrick G EnrightDirector | BUY | 105.3K | $20.85 | $2.0M |
| Oct 9, 25 | Jason Raleigh NunnDirector | BUY | 63.2K | $19.00 | $1.2M |
| Oct 9, 25 | Sr One Capital Management, LlcTenPercentOwner | BUY | 63.2K | $19.00 | $1.2M |
| Oct 7, 25 | Peter Evan HarwinDirector | BUY | 316.2K | $19.00 | $6.0M |
| Oct 7, 25 | Leon O Moulder JrSee Remarks | BUY | 36.9K | $20.85 | $770K |
| Oct 7, 25 | Hongbo LuDirector | BUY | 263.2K | $19.00 | $5.0M |
| Feb 18, 25 | Leon O Moulder JrChief Executive Officer | BUY | 25.0K | $6.67 | $167K |
| Feb 7, 25 | Ting XiaoDirector | BUY | 10.0K | $7.76 | $78K |
| Dec 4, 24 | Leon O Moulder JrChief Executive Officer | BUY | 45.0K | $9.98 | $449K |
| Dec 3, 24 | Leon O Moulder JrChief Executive Officer | BUY | 25.0K | $10.76 | $269K |
| Nov 19, 24 | Leon O Moulder JrChief Executive Officer | BUY | 2.5K | $14.57 | $36K |
| Nov 18, 24 | Leon O Moulder JrChief Executive Officer | BUY | 7.5K | $15.00 | $113K |
| Sep 20, 24 | Leon O Moulder JrChief Executive Officer | BUY | 2.6K | $18.97 | $50K |
| Sep 19, 24 | Leon O Moulder JrChief Executive Officer | BUY | 5.0K | $17.89 | $89K |
| Sep 18, 24 | Leon O Moulder JrChief Executive Officer | BUY | 10.0K | $17.91 | $179K |
| Sep 16, 24 | Jason Raleigh NunnDirector | BUY | 441.2K | $17.00 | $7.5M |
| Sep 16, 24 | Sr One Capital Management, LlcTenPercentOwner | BUY | 1.35M | $17.00 | $23.0M |
| Sep 16, 24 | Zebra Aggregator, LpTenPercentOwner | BUY | 882.4K | $17.00 | $15.0M |
| Sep 16, 24 | Patrick G EnrightDirector | BUY | 440.0K | $17.00 | $7.5M |
| Sep 16, 24 | Fairmount Funds Management LlcDirector | BUY | 300.0K | $17.00 | $5.1M |
| Sep 16, 24 | Peter Evan HarwinDirector | BUY | 300.0K | $17.00 | $5.1M |
| Sep 13, 24 | Hongbo LuDirector | BUY | 58.8K | $17.00 | $1000K |
Over the past 12 months, insiders at Zenas BioPharma, Inc. filed 19 open-market purchases worth $23.8M and 0 sales worth $0 on ZBIO, which makes them net buyers over the period. The most recent Form 4 was filed on Mar 31, 26.
The largest recent open-market ZBIO insider purchase in our data was $23.0M by Sr One Capital Management, Llc, TenPercentOwner, filed on Sep 16, 24.
7 different insiders at Zenas BioPharma, Inc. filed open-market SEC Form 4 transactions on ZBIO over the last 12 months.
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