4
OWNERSHIP DOCUMENT
- Filing date
- 27 Mar 2026
- Reporting date
- 26 Mar 2026
- SEC evidence
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Protagonist Therapeutics, Inc reports
- Company location
- Newark, CA
- Fiscal year end
- 31 December
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
Protagonist Therapeutics, Inc has filed 682 SEC EDGAR filings since 28 Sep 2006
SEC filing history
Showing 26-50 of 681 matching filings.
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2
4
OWNERSHIP DOCUMENT
- Filing date
- 27 Mar 2026
- Reporting date
- 26 Mar 2026
- SEC evidence
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4
OWNERSHIP DOCUMENT
- Filing date
- 27 Mar 2026
- Reporting date
- 26 Mar 2026
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SCHEDULE 13G/A
File 005-89601
SCHEDULE 13G/A filing
- Filing date
- 27 Mar 2026
- Reporting date
- Not listed
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144
File 001-37852
144 filing
- Filing date
- 26 Mar 2026
- Reporting date
- Not listed
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144
File 001-37852
144 filing
- Filing date
- 26 Mar 2026
- Reporting date
- Not listed
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144
File 001-37852
144 filing
- Filing date
- 26 Mar 2026
- Reporting date
- Not listed
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4
OWNERSHIP DOCUMENT
- Filing date
- 25 Mar 2026
- Reporting date
- 23 Mar 2026
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144
File 001-37852
144 filing
- Filing date
- 24 Mar 2026
- Reporting date
- Not listed
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S-8
File 333-293749
FORM S-8
- Filing date
- 25 Feb 2026
- Reporting date
- Not listed
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10-K
File 001-37852
10-K
- Filing date
- 25 Feb 2026
- Reporting date
- 31 Dec 2025
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8-K
File 001-37852
FORM 8-K
- Filing date
- 25 Feb 2026
- Reporting date
- 25 Feb 2026
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4
OWNERSHIP DOCUMENT
- Filing date
- 18 Feb 2026
- Reporting date
- 17 Feb 2026
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144
File 001-37852
144 filing
- Filing date
- 17 Feb 2026
- Reporting date
- Not listed
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SCHEDULE 13G/A
File 005-89601
SCHEDULE 13G/A filing
- Filing date
- 17 Feb 2026
- Reporting date
- Not listed
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SCHEDULE 13G
File 005-89601
SCHEDULE 13G filing
- Filing date
- 10 Feb 2026
- Reporting date
- Not listed
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4
OWNERSHIP DOCUMENT
- Filing date
- 06 Feb 2026
- Reporting date
- 06 Feb 2026
- SEC evidence
- Open document Open filing
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SCHEDULE 13G/A
File 005-89601
SCHEDULE 13G/A filing
- Filing date
- 06 Feb 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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144
File 001-37852
144 filing
- Filing date
- 06 Feb 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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SCHEDULE 13G/A
File 005-89601
SCHEDULE 13G/A filing
- Filing date
- 30 Jan 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
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4
OWNERSHIP DOCUMENT
- Filing date
- 27 Jan 2026
- Reporting date
- 23 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
OWNERSHIP DOCUMENT
- Filing date
- 27 Jan 2026
- Reporting date
- 27 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
OWNERSHIP DOCUMENT
- Filing date
- 27 Jan 2026
- Reporting date
- 23 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 001-37852
144 filing
- Filing date
- 27 Jan 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 001-37852
144 filing
- Filing date
- 27 Jan 2026
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing