Zenas BioPharma, Inc. - ZBIO

All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)? Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).

Files summary

Total files loaded: 22
Latest filed: Oct 13, 2026
Form Count
4 13
8-K 3
SCHEDULE 13D/A 2
SCHEDULE 13G 1
SCHEDULE 13G/A 1
144 1
SCHEDULE 13D 1

Latest files

Filed Form Report period Accession SEC
Oct 13, 2026 8-K Oct 12, 2026 0001104659-26-115151 View
Sep 08, 2026 SCHEDULE 13G — 0000902219-26-000315 View
Sep 08, 2026 SCHEDULE 13G/A — 0001213900-26-097825 View
Sep 02, 2026 4 Sep 01, 2026 0001104659-26-104728 View
Aug 19, 2026 SCHEDULE 13D/A — 0001953107-26-000015 View
Aug 19, 2026 144 — 0001968582-26-000858 View
Aug 17, 2026 SCHEDULE 13D/A — 0001072613-26-000694 View
Aug 13, 2026 8-K Aug 12, 2026 0001104659-26-095437 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075249 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075250 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075251 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075252 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075253 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075254 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075255 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075256 View
Jun 17, 2026 4 Jun 15, 2026 0001104659-26-075257 View
Jun 17, 2026 4 Jun 15, 2026 0001193125-26-274473 View
May 18, 2026 4 May 18, 2026 0001104659-26-063362 View
May 13, 2026 8-K May 11, 2026 0001104659-26-059700 View
May 05, 2026 SCHEDULE 13D — 0001104659-26-055643 View
Apr 29, 2026 4 Apr 28, 2026 0001104659-26-051889 View