UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
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Item 4.01 Changes in Registrant’s Certifying Accountant
On June 3, 2025, SELLAS Life Sciences Group, Inc.’s (the “Company”) independent registered public accounting firm, Moss Adams LLP (“Moss Adams”), merged with Baker Tilly US, LLP. The combined audit practices operate as Baker Tilly US, LLP (“Baker Tilly”). In connection with the merger, Moss Adams has resigned as the auditors of the Company and on June 3, 2025, the Audit Committee of the Company’s Board of Directors accepted the resignation of Moss Adams and approved the appointment of Baker Tilly, as the successor to Moss Adams, as the Company’s independent registered public accounting firm.
The audit report of Moss Adams on the Company’s consolidated financial statements as of and for the years ended December 31, 2024 and 2023, did not contain an adverse opinion or a disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope or accounting principles. Moss Adams’ audit report on the consolidated financial statements contained an explanatory paragraph regarding a going concern uncertainty.
During the fiscal years ended December 31, 2024 and 2023, and the subsequent interim period through the date of this Current Report on Form 8-K, there were no (a) disagreements within the meaning of Item 304(a)(1)(iv) of Regulation S-K with Moss Adams on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to Moss Adams’ satisfaction, would have caused it to make reference to the subject matter of the disagreement in connection with its reports on the Company’s financial statements, and (b) reportable events within the meaning of Item 304(a)(1)(v) of Regulation S-K.
On June 3, 2025, the Company engaged Baker Tilly as the Company’s new independent registered public accounting firm for the fiscal year ending December 31, 2025.
During the fiscal years ended December 31, 2024 and 2023, and the subsequent interim period through the date of this Current Report on Form 8-K, neither the Company, nor anyone on its behalf, consulted with Baker Tilly regarding: (i) either the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements; (ii) any matter that was either the subject of a “disagreement,” as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions to that item, or (iii) any reportable event within the meaning of Item 304(a)(1)(v) of Regulation S-K.
The Company provided Moss Adams with a copy of this Current Report on Form 8-K prior to its filing with the Securities and Exchange Commission (the “Commission”) and requested that Moss Adams furnish the Company with a letter addressed to the Commission stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of Moss Adams’ letter to the Commission, dated June 6, 2025, is filed as Exhibit 16.1 to this Form 8-K and is incorporated herein by reference.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits
| Exhibit Number | Description | |
| 16.1 | Letter from Moss Adams Dated June 6, 2025 | |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| SELLAS Life Sciences Group, Inc. | |||
| Date: June 6, 2025 | By: | /s/ John T. Burns | |
| Name: | John T. Burns | ||
| Title: | Senior Vice President, Chief Financial Officer | ||