Zenas BioPharma, Inc. (ZBIO)
Nasdaq: ZBIO · Pharmaceutical Preparations · Waltham, MA · filing with the SEC since 2022
Filings
110 filings since 2017 beside 85 insider forms · and emerging growth company · read from EDGAR on Nov 13, 2026Due next and emerging growth company
10-K
Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends.
by Mar 31, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end.
by May 15, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 36 days after the quarter ended. The proxy statement was last filed Mar 16, 2026.
Filings a yearinsider forms included
1765662
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 5 times in the last 36 months, the newest Aug 13, 2026.SEC letters: 8 in the last 36 months, the newest Sep 10, 2024.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Aug 13, 2026
8-K items 2.02, 5.02, 9.01
Results released; Officer or director change · Current report
Aug 12, 2026
May 13, 2026
8-K items 2.02, 5.02, 5.07, 9.01
Results released; Officer or director change; Shareholder vote · Current report
May 11, 2026
Mar 31, 2026
8-K items 1.01, 2.03, 8.01, 9.01
Major agreement signed; New debt or obligation taken on; Other event · Current report
Mar 26, 2026
Jan 5, 2026
8-K items 2.02, 7.01, 8.01, 9.01
Results released; Investor disclosure (Regulation FD); Other event · Current report
40 of 110 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.