DRAGAN CICIC - 07 Jan 2026 Form 4 Insider Report for SELLAS Life Sciences Group, Inc. (SLS)

Role: SVP, Chief Development Officer
Signature: /s/ Daniel Bagliebter, Power of Attorney For: Dragan Cicic
Issuer symbol: SLS
Transactions as of: 07 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 09 Jan 2026, 16:35:34 UTC
Previous filing: 05 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
CICIC DRAGAN	SVP, Chief Development Officer	C/O SELLAS LIFE SCIENCES GROUP, INC.,, 7 TIMES SQUARE, SUITE 2503, NEW YORK	/s/ Daniel Bagliebter, Power of Attorney For: Dragan Cicic	09 Jan 2026	0001565795

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SLS	Common Stock	Award	$0	+300,000	+116%	$0.000000	557,805	07 Jan 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person received an award of 300,000 restricted stock units on January 7, 2026, which shall vest as follows: (i) 25% on December 1, 2026 and (ii) 25% on each December 1 thereafter until fully vested, provided that the Reporting Person remains in service with the Issuer through each such vesting date.