Zenas BioPharma, Inc. - ZBIO
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Sep 08, 2026 | SCHEDULE 13G | Wellington Management Group LLP | 10.1% | 6,566,134 | View |
| Sep 08, 2026 | SCHEDULE 13G | Wellington Group Holdings LLP | 10.1% | 6,566,134 | View |
| Sep 08, 2026 | SCHEDULE 13G | Wellington Investment Advisors Holdings LLP | 10.1% | 6,566,134 | View |
| Sep 08, 2026 | SCHEDULE 13G | Wellington Management Company LLP | 9.9% | 6,566,134 | View |
| Sep 08, 2026 | SCHEDULE 13G/A | InnoCare Pharma Inc. | 10.4% | 7,000,000 | View |
| Sep 08, 2026 | SCHEDULE 13G/A | Ocean Prominent Limited | 10.4% | 7,000,000 | View |
| Sep 08, 2026 | SCHEDULE 13G/A | InnoCare Pharma Limited | 10.4% | 7,000,000 | View |
| Aug 19, 2026 | SCHEDULE 13D/A | — | 4.9% | — | View |
| Aug 17, 2026 | SCHEDULE 13D/A | — | 1.0% | — | View |
| May 05, 2026 | SCHEDULE 13D | — | 25.0% | — | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.