X0609 4 2026-05-21 0 0000064463 Soluna Holdings, Inc SLNH 0001297074 PICCHI MICHAEL false C/O SOLUNA HOLDINGS, INC. 325 WASHINGTON AVENUE EXTENSION ALBANY NY 12205 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-05-21 4 P 0 100000 1.632 A 1381250 D Represents the average purchase price of shares sold ranging from $1.61- $1.65 per share of Common Stock. Mr. Picchi undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares purchased in each separate lot. /s/ Christopher Gandolfo, Attorney in Fact 2026-05-22