Sellas Life Sciences (SLS) director awarded 50K RSUs vesting 2026

Rhea-AI Filing Summary

SELLAS Life Sciences Group, Inc. reported that director Robert L. Van Nostrand received an equity award in the form of 50,000 shares of common stock on January 7, 2026. The award represents restricted stock units that were granted at a price of $0.00 per share, reflecting a compensatory grant rather than a market purchase. Following this grant, Van Nostrand beneficially owns 82,900 shares of SELLAS common stock. According to the terms, the 50,000 restricted stock units will vest in full on December 1, 2026, provided he continues to serve on the company’s Board of Directors through that date.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

VAN NOSTRAND ROBERT L

(Last) (First) (Middle)

C/O SELLAS LIFE SCIENCES GROUP, INC.,

7 TIMES SQUARE, SUITE 2503

(Street)

NEW YORK NY 10036

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SELLAS Life Sciences Group, Inc. [ SLS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/07/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/07/2026		A		50,000(1)	A	$0.00	82,900	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The Reporting Person received an award of 50,000 restricted stock units on January 7, 2026, which shall vest in full on December 1, 2026, subject to the Reporting Person's continued service on the Issuer's Board of Directors through such date.

	/s/ Daniel Bagliebter, Power of Attorney for: Robert L. Van Nostrand	01/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did SELLAS (SLS) disclose for Robert L. Van Nostrand?

SELLAS Life Sciences Group, Inc. disclosed that director Robert L. Van Nostrand received an award of 50,000 restricted stock units of common stock on January 7, 2026 at a price of $0.00 per share.

How many SELLAS (SLS) shares does Robert L. Van Nostrand own after this award?

After the reported award, Robert L. Van Nostrand beneficially owns 82,900 shares of SELLAS Life Sciences Group, Inc. common stock, held in direct ownership form.

When do the 50,000 restricted stock units granted to the SELLAS (SLS) director vest?

The 50,000 restricted stock units granted to director Robert L. Van Nostrand will vest in full on December 1, 2026, subject to his continued service on SELLAS’s Board of Directors through that date.

Was the SELLAS (SLS) director’s Form 4 transaction a purchase on the open market?

No. The Form 4 shows an “A” (acquired) transaction code at a price of $0.00 per share, indicating a compensatory grant of restricted stock units, not an open-market purchase.

What role does Robert L. Van Nostrand have at SELLAS (SLS)?

Robert L. Van Nostrand is reported as a Director of SELLAS Life Sciences Group, Inc. and is not listed as a 10% owner or officer in this Form 4.

Is the SELLAS (SLS) Form 4 filed by one or multiple reporting persons?

The Form 4 is indicated as being filed by one reporting person, namely Robert L. Van Nostrand, with the ownership of the reported securities classified as direct.