ZBIO - Company ID 0001953926
Zenas BioPharma, Inc. has filed 166 public company documents between 2022 and 2026. The most frequent type is insider trade (51 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| 4 | Insider trade | 3mo ago2026-05-18 | 2026-05-18 | View filing |
| 10-Q | Quarterly report | 3mo ago2026-05-13 | 2026-03-31 | View filing |
| 8-K | Major company event | 3mo ago2026-05-13 | 2026-05-11 | View filing |
| SCHEDULE 13D | SCHEDULE 13D | 4mo ago2026-05-05 | - | View filing |
| 4 | Insider trade | 4mo ago2026-04-29 | 2026-04-28 | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 5mo ago2026-04-02 | - | View filing |
| 4 | Insider trade | 5mo ago2026-04-02 | 2026-03-31 | View filing |
| 4 | Insider trade | 5mo ago2026-04-01 | 2026-03-31 | View filing |
| 4 | Insider trade | 5mo ago2026-03-31 | 2026-03-30 | View filing |
| 4 | Insider trade | 5mo ago2026-03-31 | 2026-03-31 | View filing |
| 8-K | Major company event | 5mo ago2026-03-31 | 2026-03-26 | View filing |
| 424B5 | Prospectus supplement | 5mo ago2026-03-30 | - | View filing |
| 424B5 | Prospectus supplement | 5mo ago2026-03-30 | - | View filing |
| FWP | Free writing prospectus | 5mo ago2026-03-27 | - | View filing |
| FWP | Free writing prospectus | 5mo ago2026-03-27 | - | View filing |
| 424B5 | Prospectus supplement | 5mo ago2026-03-26 | - | View filing |
| 424B5 | Prospectus supplement | 5mo ago2026-03-26 | - | View filing |
| FWP | Free writing prospectus | 5mo ago2026-03-26 | - | View filing |
| DEFA14A | Proxy materials | 5mo ago2026-03-16 | - | View filing |
| ARS | Annual report to shareholders | 5mo ago2026-03-16 | 2025-12-31 | View filing |
| DEF 14A | Proxy statement | 5mo ago2026-03-16 | 2026-05-11 | View filing |
| S-8 | Employee stock plan | 5mo ago2026-03-16 | - | View filing |
| 10-K | Annual report | 5mo ago2026-03-16 | 2025-12-31 | View filing |
| 8-K | Major company event | 5mo ago2026-03-16 | 2026-03-16 | View filing |
| 4 | Insider trade | 6mo ago2026-02-13 | 2026-02-11 | View filing |
| 4 | Insider trade | 6mo ago2026-02-13 | 2026-02-12 | View filing |
| 8-K | Major company event | 6mo ago2026-02-13 | 2026-02-10 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 7mo ago2026-02-05 | - | View filing |
| 4 | Insider trade | 7mo ago2026-02-03 | 2026-02-02 | View filing |
| 424B7 | 424B7 | 7mo ago2026-01-28 | - | View filing |
| SCHEDULE 13D | SCHEDULE 13D | 7mo ago2026-01-14 | - | View filing |
| 4 | Insider trade | 8mo ago2026-01-09 | 2026-01-07 | View filing |
| 8-K | Major company event | 8mo ago2026-01-05 | 2026-01-05 | View filing |
| S-8 | Employee stock plan | 8mo ago2025-12-19 | - | View filing |
| 8-K | Major company event | 8mo ago2025-12-15 | 2025-12-10 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 9mo ago2025-11-14 | - | View filing |
| 10-Q | Quarterly report | 9mo ago2025-11-12 | 2025-09-30 | View filing |
| 8-K | Major company event | 9mo ago2025-11-12 | 2025-11-12 | View filing |
| 8-K | Major company event | 10mo ago2025-10-27 | 2025-10-27 | View filing |
| S-3ASR | S-3ASR | 10mo ago2025-10-21 | - | View filing |
| 3 | New insider ownership | 10mo ago2025-10-15 | 2025-10-07 | View filing |
| SCHEDULE 13G | SCHEDULE 13G | 10mo ago2025-10-15 | - | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 10mo ago2025-10-14 | - | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 10mo ago2025-10-14 | - | View filing |
| 4 | Insider trade | 10mo ago2025-10-14 | 2025-10-09 | View filing |
| 4 | Insider trade | 10mo ago2025-10-14 | 2025-10-09 | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 10mo ago2025-10-14 | - | View filing |
| 4 | Insider trade | 10mo ago2025-10-14 | 2025-10-09 | View filing |
| 4 | Insider trade | 11mo ago2025-10-09 | 2025-10-07 | View filing |
| SCHEDULE 13D/A | SCHEDULE 13D/A | 11mo ago2025-10-09 | - | View filing |