BlackRock, Inc. - 30 Sep 2025 SCHEDULE 13G Report for SELLAS LIFE SCIENCES GROUP INC Common Stock (SLS)

Filing Manager: BlackRock, Inc.
Reporting Manager: BlackRock, Inc.
Security: SELLAS LIFE SCIENCES GROUP INC Common Stock
Symbol: SLS
Shares outstanding: 105,312,704 shares
Disclosed Ownership: 5,686,886 shares
Ownership: 5.4%
Form type: SCHEDULE 13G
Filing time: 17 Oct 2025, 18:24:03 UTC
Date of event: 30 Sep 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
BlackRock, Inc.	5.4%	5,686,886	5,604,491	0	Spencer Fleming	Managing Director