Schedule 13G ownership disclosure

SELLAS Life Sciences Group Inc

COMMON STOCK · CUSIP: 81642T209

Event date: 2026-09-30

Filing-level shares
10,373,074.00
Percent of class
5.1%
  • STATE STREET CORPORATION

    Shares: 10,373,074.00 · Class: 5.1%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.

Source: SEC EDGAR filing

Filing metadata

Accession number
0000093751-26-000723
Form type
SCHEDULE 13G
Filer
SELLAS Life Sciences Group, Inc.
CIK
CIK 1390478
Filed
Nov 10, 2026
Reporting period
Sep 30, 2026
Description
Schedule 13G beneficial ownership

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