Zenas BioPharma, Inc. (ZBIO)

Nasdaq · Pharmaceutical Preparations · Inc. DE

What they're doing

Between 2026-06-21 and 2026-09-19, public records show 1 signal for Zenas BioPharma, Inc.. Most notable: 2026-08-13: Filed 8-K disclosing director or officer change. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.

Generated 2026-09-19 from public records.

Signals, last 12 months

  1. Material 8-K filing
    Filed 8-K disclosing director or officer change
  2. Insider purchase
    MOULDER LEON O JR (director) bought $1.0M of stock
  3. Material 8-K filing
    Filed 8-K disclosing director or officer change
  4. Insider purchase
    MOULDER LEON O JR (director) bought $617k of stock
  5. Insider purchase
    MOULDER LEON O JR (director) bought $451k of stock
  6. Insider purchase
    Kiselak Tomas (director) bought $3.0M of stock
  7. Insider purchase
    Lu Hongbo (director) bought $1.5M of stock
  8. Insider purchase
    MOULDER LEON O JR (director) bought $657k of stock
  9. Material 8-K filing
    Filed 8-K disclosing material agreement
  10. Insider purchase
    Lu Hongbo (director) bought $70k of stock
  11. Insider purchase
    MOULDER LEON O JR (director) bought $365k of stock
  12. Material 8-K filing
    Filed 8-K disclosing director or officer change
  13. Insider purchase
    Allen Patricia L (director) bought $110k of stock
  14. Insider purchase
    Allen Patricia L (director) bought $139k of stock
  15. Insider purchase
    Allen Patricia L (director) bought $119k of stock
  16. Insider purchase
    Allen Patricia L (director) bought $133k of stock
  17. Insider purchase
    Lu Hongbo (director) bought $585k of stock
  18. Insider purchase
    MOULDER LEON O JR (director) bought $1.0M of stock
  19. Insider purchase
    MOULDER LEON O JR (director) bought $331k of stock
  20. Insider purchase
    MOULDER LEON O JR (director) bought $489k of stock
  21. Insider purchase
    MOULDER LEON O JR (director) bought $819k of stock
  22. Material 8-K filing
    Filed 8-K disclosing director or officer change
  23. Insider purchase
    ENRIGHT PATRICK G (director) bought $2.0M of stock
  24. Insider purchase
    SR ONE CAPITAL MANAGEMENT, LLC (ten_percent_owner) bought $1.2M of stock
  25. Insider purchase
    Nunn Jason Raleigh (director) bought $1.2M of stock
  26. Insider purchase
    SR ONE CAPITAL MANAGEMENT, LLC (ten_percent_owner) bought $1.2M of stock
  27. Insider purchase
    ENRIGHT PATRICK G (director) bought $250k of stock
  28. Material 8-K filing
    Filed 8-K disclosing material agreement
  29. Insider buying cluster
    3 insiders bought $11.8M within 14 days
  30. Insider purchase
    Harwin Peter Evan (director) bought $6.0M of stock
  31. Insider purchase
    Lu Hongbo (director) bought $5.0M of stock
  32. Insider purchase
    MOULDER LEON O JR (director) bought $770k of stock

Insider transactions

DateInsiderRoleCodeSharesPriceValue
2026-05-18MOULDER LEON O JRdirectorP60,00016.88$1,012,800
2026-05-18MOULDER LEON O JRdirectorP60,00016.88$1,012,800
2026-04-29MOULDER LEON O JRdirectorP35,00017.62$616,700
2026-04-29MOULDER LEON O JRdirectorP35,00017.62$616,700
2026-04-28MOULDER LEON O JRdirectorP25,00018.02$450,500
2026-04-28MOULDER LEON O JRdirectorP25,00018.02$450,500
2026-03-31Lu HongbodirectorP3,76818.63$70,198
2026-03-31Kiselak TomasdirectorP150,00020$3,000,000
2026-03-31MOULDER LEON O JRdirectorP34,00019.31$656,540
2026-03-31Lu HongbodirectorP75,00020$1,500,000
2026-03-31Lu HongbodirectorP3,76818.63$70,198
2026-03-31Fairmount Funds Management LLC; Fairmount Healthcare Fund II L.P.; Kiselak Tomas; Harwin Peter EvandirectorP150,00020$3,000,000
2026-03-31MOULDER LEON O JRdirectorP34,00019.31$656,540
2026-03-31Lu HongbodirectorP75,00020$1,500,000
2026-03-30MOULDER LEON O JRdirectorP20,00018.23$364,600
2026-03-30MOULDER LEON O JRdirectorP20,00018.23$364,600
2026-02-13Allen Patricia LdirectorP4,16026.36$109,658
2026-02-13Allen Patricia LdirectorP4,16026.36$109,658
2026-02-12Allen Patricia LdirectorP5,70024.34$138,738
2026-02-12Allen Patricia LdirectorP5,00023.77$118,850
2026-02-12Allen Patricia LdirectorP5,00026.5$132,500
2026-02-12Allen Patricia LdirectorP5,70024.34$138,738
2026-02-12Allen Patricia LdirectorP5,00023.77$118,850
2026-02-12Allen Patricia LdirectorP5,00026.5$132,500
2026-02-11Lu HongbodirectorP25,98522.5$584,663
2026-02-11Lu HongbodirectorP25,98522.5$584,663
2026-02-05Farmer Joseph LofficerA97413.35$13,003
2026-02-05Fox Jennifer A.officerA1,59213.35$21,253
2026-02-05Farmer Joseph LofficerA97413.35$13,003
2026-02-05Fox Jennifer A.officerA1,59213.35$21,253
2026-02-02MOULDER LEON O JRdirectorP57,00017.96$1,023,720
2026-02-02MOULDER LEON O JRdirectorP57,00017.96$1,023,720
2026-01-09MOULDER LEON O JRdirectorP20,00016.55$331,000
2026-01-09MOULDER LEON O JRdirectorP20,00016.55$331,000
2026-01-08MOULDER LEON O JRdirectorP30,00016.3$489,000
2026-01-08MOULDER LEON O JRdirectorP30,00016.3$489,000
2026-01-07MOULDER LEON O JRdirectorP50,00016.38$819,000
2026-01-07MOULDER LEON O JRdirectorP50,00016.38$819,000
2025-10-09Nunn Jason RaleighdirectorP63,15819$1,200,002
2025-10-09SR ONE CAPITAL MANAGEMENT, LLCten percent ownerP63,15719$1,199,983
2025-10-09SR ONE CAPITAL MANAGEMENT, LLCten percent ownerP63,15819$1,200,002
2025-10-09ENRIGHT PATRICK GdirectorP105,26519$2,000,035
2025-10-09ENRIGHT PATRICK GdirectorP11,99020.85$249,992
2025-10-09Nunn Jason RaleighdirectorP63,15819$1,200,002
2025-10-09SR ONE CAPITAL MANAGEMENT, LLC; George Simeonten percent ownerP63,15819$1,200,002
2025-10-09SR ONE CAPITAL MANAGEMENT, LLC; George Simeonten percent ownerP63,15719$1,199,983
2025-10-09ENRIGHT PATRICK GdirectorP105,26519$2,000,035
2025-10-09ENRIGHT PATRICK GdirectorP11,99020.85$249,992
2025-10-07MOULDER LEON O JRdirectorP36,92820.85$769,949
2025-10-07Harwin Peter EvandirectorP316,21919$6,008,161

Federal contracts

No federal contract actions on record for this recipient mapping.

Lobbying

No federal lobbying filings on record for this client mapping.

Public attention

No Wikipedia pageview data linked to this company.

Recent filings