Zenas BioPharma, Inc.
ZBIONasdaqCIK 1953926HealthcareFiscal year ends Dec 31
Reports and events: 45 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-1306:01 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-115151 |
| 2026-08-1918:49 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001953107-26-000015 |
| 2026-08-1718:59 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001072613-26-000694 |
| 2026-08-1307:15 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001104659-26-095448 |
| 2026-08-1307:05 ET | 8-K | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-095437 |
| 2026-05-1306:36 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001104659-26-059735 |
| 2026-05-1306:14 ET | 8-K | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-26-059700 |
| 2026-05-0516:15 ET | SCHEDULE 13D | Ownership report, active investor | 0001104659-26-055643 |
| 2026-04-0217:44 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-039279 |
| 2026-03-3116:35 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-037821 |
| 2026-03-1608:25 ET | DEF 14A | Proxy statementPeriod 2026-05-11 | 0001104659-26-028062 |
| 2026-03-1607:26 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001104659-26-027964 |
| 2026-03-1607:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-027961 |
| 2026-02-1316:58 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-015314 |
| 2026-01-1416:30 ET | SCHEDULE 13D | Ownership report, active investor | 0001104659-26-003758 |
| 2026-01-0507:16 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-000402 |
| 2025-12-1516:30 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-25-121182 |
| 2025-11-1207:20 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001104659-25-109753 |
| 2025-11-1207:12 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-109737 |
| 2025-10-2707:19 ET | 8-K | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-102317 |
| 2025-10-1417:29 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001953107-25-000010 |
| 2025-10-1417:29 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001193125-25-239173 |
| 2025-10-1409:35 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001193125-25-238370 |
| 2025-10-0917:15 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-25-098408 |
| 2025-10-0806:01 ET | 8-K | 1.01 Entry into a material agreement; 2.02 Results of operations; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-097663 |
| 2025-09-0207:15 ET | 8-K | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-085982 |
| 2025-08-1207:23 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001558370-25-011147 |
| 2025-08-1207:13 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-076464 |
| 2025-06-1216:19 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0001104659-25-058892 |
| 2025-06-0616:10 ET | SCHEDULE 13D | Ownership report, active investor | 0001104659-25-057322 |
| 2025-06-0406:56 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-056215 |
| 2025-05-1507:25 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001558370-25-007803 |
| 2025-05-1507:14 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-048948 |
| 2025-04-2807:00 ET | DEF 14A | Proxy statementPeriod 2025-06-10 | 0001104659-25-039765 |
| 2025-03-1106:15 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001558370-25-002631 |
| 2025-02-0507:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-009368 |
| 2024-12-0216:34 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-124616 |
| 2024-11-1207:39 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001558370-24-015162 |
| 2024-11-1207:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-116346 |
| 2024-09-2320:56 ET | SC 13D | Ownership report, active investor | 0001193125-24-223899 |
| 2024-09-2320:11 ET | SC 13D | Ownership report, active investor | 0001193125-24-223879 |
| 2024-09-2316:16 ET | SC 13D | Ownership report, active investor | 0001104659-24-102046 |
| 2024-09-1616:04 ET | 8-K | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001104659-24-100177 |
| 2024-09-0606:10 ET | S-1/A | Registration statement, amended | 0001104659-24-097538 |
| 2024-08-2214:41 ET | S-1 | Registration statement | 0001104659-24-091950 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 17:29 ET. Listed shows no prices and gives no investment advice.