Key facts
- Anson Funds Management LP filed SCHEDULE 13G/A for SELLAS Life Sciences Group, Inc. Common Stock, par value $0.0001 per share (SLS).
- Disclosed ownership: 4.9%.
- Date of event: 31 Dec 2025.
Anson Funds Management LP - 31 Dec 2025 SCHEDULE 13G/A Report for SELLAS Life Sciences Group, Inc. Common Stock, par value $0.0001 per share (SLS)
- Filing Manager
- Anson Funds Management LP
- Reporting Manager
- Anson Funds Management LP
- Symbol
- SLS
- Shares outstanding
- 152,677,102 shares
- Disclosed Ownership
- 7,481,178 shares
- Ownership
- 4.9%
- Form type
- SCHEDULE 13G/A
- Filing time
- 17 Feb 2026, 10:34:33 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 14 Nov 2025
- SEC
- View on sec.gov
Key filing fact
Anson Funds Management LP disclosed 4.9% ownership in SELLAS Life Sciences Group, Inc. Common Stock, par value $0.0001 per share (SLS) on 31 Dec 2025.
Change
- Previous schedule filing date: 14 Nov 2025.
- Current filing was accepted on 17 Feb 2026, 10:34.
Research use
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (6)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Anson Funds Management LP | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Tony Moore | Tony Moore, Manager | |
| Anson Management GP LLC | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Tony Moore | Tony Moore, Manager | |
| Tony Moore | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Tony Moore | Tony Moore, Manager | |
| Anson Advisors Inc. | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Amin Nathoo | Amin Nathoo, Director | |
| Amin Nathoo | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Amin Nathoo | Amin Nathoo, Director | |
| Moez Kassam | 4.9% | 7,481,178 | 0 | 7,481,178 | /s/ Moez Kassam | Moez Kassam, Director |
CIK / CUSIP context first