SELLAS Life Sciences Group, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
New York, NY
SEC filing record 1 source field available
Fiscal year end
31 December
SELLAS Life Sciences Group, Inc. has filed 1,267 SEC EDGAR filings since 07 Feb 2007

SEC filing history

Showing 51-75 of 1,000 matching filings.

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25
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3
4

OWNERSHIP DOCUMENT

Filing date
02 Jun 2025
Reporting date
30 May 2025
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4

OWNERSHIP DOCUMENT

Filing date
22 May 2025
Reporting date
22 May 2025
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SCHEDULE 13G File 005-84090

SCHEDULE 13G filing

Filing date
15 May 2025
Reporting date
Not listed
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ARS File 001-33958

ARS

Filing date
23 Apr 2025
Reporting date
31 Dec 2024
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DEFA14A File 001-33958

DEFA14A

Filing date
23 Apr 2025
Reporting date
Not listed
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DEF 14A File 001-33958

DEF 14A

Filing date
23 Apr 2025
Reporting date
17 Jun 2025
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424B5 File 333-278334

424B5

Filing date
29 Jan 2025
Reporting date
Not listed
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
14 Jan 2025
Reporting date
10 Jan 2025
SEC evidence
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4

OWNERSHIP DOCUMENT

Filing date
05 Dec 2024
Reporting date
04 Dec 2024
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4

OWNERSHIP DOCUMENT

Filing date
05 Dec 2024
Reporting date
04 Dec 2024
SEC evidence
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Next action
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