NASDAQ:ZBIO | Insider Transactions | Zenas BioPharma, Inc.

ZBIO Insider Transactions

65 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–65; provenance stays internal.

ZBIO insiders transaction timeline

PurchaseSale
2024-09-13: 2 purchases — Lu Hongbo2024-09-16: 19 purchases — Enavate Sciences GP, LLC, Zebra Aggregator, LP, Harwin Peter Evan and 7 more2024-09-18: 1 purchase — MOULDER LEON O JR2024-09-19: 1 purchase — MOULDER LEON O JR2024-09-20: 2 purchases — MOULDER LEON O JR2024-11-18: 1 purchase — MOULDER LEON O JR2024-11-19: 1 purchase — MOULDER LEON O JR2024-12-03: 1 purchase — MOULDER LEON O JR2024-12-04: 1 purchase — MOULDER LEON O JR2025-02-07: 2 purchases — Xiao Ting2025-02-18: 1 purchase — MOULDER LEON O JR2025-10-07: 6 purchases — MOULDER LEON O JR, Harwin Peter Evan, Fairmount Healthcare Fund II L.P. and 3 more2025-10-09: 7 purchases — Nunn Jason Raleigh, George Simeon, SR ONE CAPITAL MANAGEMENT, LLC and 1 more2026-01-07: 1 purchase — MOULDER LEON O JR2026-01-08: 1 purchase — MOULDER LEON O JR2026-01-09: 1 purchase — MOULDER LEON O JR2026-02-02: 1 purchase — MOULDER LEON O JR2026-02-11: 1 purchase — Lu Hongbo2026-02-12: 3 purchases — Allen Patricia L2026-02-13: 1 purchase — Allen Patricia L2026-03-30: 1 purchase — MOULDER LEON O JR2026-03-31: 7 purchases — Lu Hongbo, Harwin Peter Evan, Fairmount Healthcare Fund II L.P. and 3 more2026-04-28: 1 purchase — MOULDER LEON O JR2026-04-29: 1 purchase — MOULDER LEON O JR2026-05-18: 1 purchase — MOULDER LEON O JR2024-09-132026-05-18
Insider profileRoleDateTransactionSharesPrice
MOULDER LEON O JRChief Executive Officer2026-05-18Purchase60,000.0$16.88
MOULDER LEON O JRChief Executive Officer2026-04-29Purchase35,000.0$17.62
MOULDER LEON O JRChief Executive Officer2026-04-28Purchase25,000.0$18.02
Lu HongboDirector2026-03-31Purchase3,768.0$18.63
Harwin Peter EvanDirector2026-03-31Purchase150,000.0$20.0
Fairmount Healthcare Fund II L.P.Director2026-03-31Purchase150,000.0$20.0
Fairmount Funds Management LLCDirector2026-03-31Purchase150,000.0$20.0
Kiselak TomasDirector2026-03-31Purchase150,000.0$20.0
MOULDER LEON O JRChief Executive Officer2026-03-31Purchase34,000.0$19.31
Lu HongboDirector2026-03-31Purchase75,000.0$20.0
MOULDER LEON O JRChief Executive Officer2026-03-30Purchase20,000.0$18.23
Allen Patricia LDirector2026-02-13Purchase4,160.0$26.36
Allen Patricia LDirector2026-02-12Purchase5,000.0$26.5
Allen Patricia LDirector2026-02-12Purchase5,700.0$24.34
Allen Patricia LDirector2026-02-12Purchase5,000.0$23.77
Lu HongboDirector2026-02-11Purchase25,985.0$22.5
MOULDER LEON O JRChief Executive Officer2026-02-02Purchase57,000.0$17.96
MOULDER LEON O JRChief Executive Officer2026-01-09Purchase20,000.0$16.55
MOULDER LEON O JRChief Executive Officer2026-01-08Purchase30,000.0$16.3
MOULDER LEON O JRChief Executive Officer2026-01-07Purchase50,000.0$16.38
Nunn Jason RaleighDirector2025-10-09Purchase63,158.0$19.0
George SimeonTenPercentOwner2025-10-09Purchase63,157.0$19.0
SR ONE CAPITAL MANAGEMENT, LLCTenPercentOwner2025-10-09Purchase63,157.0$19.0
George SimeonTenPercentOwner2025-10-09Purchase63,158.0$19.0
SR ONE CAPITAL MANAGEMENT, LLCTenPercentOwner2025-10-09Purchase63,158.0$19.0
ENRIGHT PATRICK GDirector2025-10-09Purchase11,990.0$20.85
ENRIGHT PATRICK GDirector2025-10-09Purchase105,265.0$19.0
MOULDER LEON O JRSee Remarks2025-10-07Purchase36,928.0$20.85
Harwin Peter EvanDirector2025-10-07Purchase316,219.0$19.0
Fairmount Healthcare Fund II L.P.Director2025-10-07Purchase316,219.0$19.0
Fairmount Funds Management LLCDirector2025-10-07Purchase316,219.0$19.0
Kiselak TomasDirector2025-10-07Purchase316,219.0$19.0
Lu HongboDirector2025-10-07Purchase263,160.0$19.0
MOULDER LEON O JRChief Executive Officer2025-02-18Purchase25,000.0$6.67
Xiao TingDirector2025-02-07Purchase10,000.0$7.76
Xiao TingDirector2025-02-07Purchase10,000.0$7.76
MOULDER LEON O JRChief Executive Officer2024-12-04Purchase45,000.0$9.98
MOULDER LEON O JRChief Executive Officer2024-12-03Purchase25,000.0$10.76
MOULDER LEON O JRChief Executive Officer2024-11-19Purchase2,500.0$14.57
MOULDER LEON O JRChief Executive Officer2024-11-18Purchase7,500.0$15.0
MOULDER LEON O JRChief Executive Officer2024-09-20Purchase2,633.0$18.97
MOULDER LEON O JRChief Executive Officer2024-09-20Purchase2,367.0$17.88
MOULDER LEON O JRChief Executive Officer2024-09-19Purchase5,000.0$17.89
MOULDER LEON O JRChief Executive Officer2024-09-18Purchase10,000.0$17.91
Enavate Sciences GP, LLCTenPercentOwner2024-09-16Purchase882,353.0$17.0
Zebra Aggregator, LPTenPercentOwner2024-09-16Purchase882,353.0$17.0
Harwin Peter EvanDirector2024-09-16Purchase300,000.0$17.0
Fairmount Healthcare Fund II L.P.Director2024-09-16Purchase300,000.0$17.0
Fairmount Funds Management LLCDirector2024-09-16Purchase300,000.0$17.0
Kiselak TomasDirector2024-09-16Purchase300,000.0$17.0
ENRIGHT PATRICK GDirector2024-09-16Purchase440,000.0$17.0
Harwin Peter EvanDirector2024-09-16Purchase300,000.0$17.0
Fairmount Healthcare Fund II L.P.Director2024-09-16Purchase300,000.0$17.0
Fairmount Funds Management LLCDirector2024-09-16Purchase300,000.0$17.0
Kiselak TomasDirector2024-09-16Purchase300,000.0$17.0
Nunn Jason RaleighDirector2024-09-16Purchase441,176.0$17.0
Nunn Jason RaleighDirector2024-09-16Purchase441,176.0$17.0
George SimeonTenPercentOwner2024-09-16Purchase441,176.0$17.0
SR ONE CAPITAL MANAGEMENT, LLCTenPercentOwner2024-09-16Purchase441,176.0$17.0
George SimeonTenPercentOwner2024-09-16Purchase1,352,942.0$17.0
SR ONE CAPITAL MANAGEMENT, LLCTenPercentOwner2024-09-16Purchase1,352,942.0$17.0
George SimeonTenPercentOwner2024-09-16Purchase441,176.0$17.0
SR ONE CAPITAL MANAGEMENT, LLCTenPercentOwner2024-09-16Purchase441,176.0$17.0
Lu HongboDirector2024-09-13Purchase58,823.0$17.0
Lu HongboDirector2024-09-13Purchase58,823.0$17.0