Zenas BioPharma, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Waltham, MA
SEC filing record 1 source field available
Fiscal year end
31 December
Zenas BioPharma, Inc. has filed 188 SEC EDGAR filings since 15 Nov 2022

SEC filing history

Showing 1-25 of 188 matching filings.

Per page
25
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1
SCHEDULE 13G File 005-94625

SCHEDULE 13G filing

Filing date
08 Sep 2026
Reporting date
Not listed
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3

3 filing

Filing date
08 Sep 2026
Reporting date
26 Aug 2026
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SCHEDULE 13G/A File 005-94625

SCHEDULE 13G/A filing

Filing date
08 Sep 2026
Reporting date
Not listed
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4

OWNERSHIP DOCUMENT

Filing date
02 Sep 2026
Reporting date
01 Sep 2026
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3

OWNERSHIP DOCUMENT

Filing date
02 Sep 2026
Reporting date
01 Sep 2026
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SCHEDULE 13D/A File 005-94625

SCHEDULE 13D/A filing

Filing date
19 Aug 2026
Reporting date
Not listed
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144 File 001-42270

144 filing

Filing date
19 Aug 2026
Reporting date
Not listed
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SCHEDULE 13D/A File 005-94625

SCHEDULE 13D/A filing

Filing date
17 Aug 2026
Reporting date
Not listed
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4

4

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
17 Jun 2026
Reporting date
15 Jun 2026
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4

OWNERSHIP DOCUMENT

Filing date
18 May 2026
Reporting date
18 May 2026
SEC evidence
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