SCHEDULE 13G 0000932540 XXXXXXXX LIVE Common Stock, par value $0.0001 par value 03/31/2025 0001464790 B. Riley Financial, Inc. 05580M108 11100 SANTA MONICA BLVD SUITE 800 LOS ANGELES CA 90025 Rule 13d-1(b) GROUP ONE TRADING LLC b DE 852795.00 0.00 852795.00 0.00 852795.00 2.8 BD B. Riley Financial, Inc. 11100 SANTA MONICA BLVD, SUITE 800, LOS ANGELES, CALIFORNIA, 90025 GROUP ONE TRADING LLC 425 S. FINANCIAL PLACE, SUITE 3400 CHICAGO, IL 60605 DELAWARE, USA N BD 852,795 Group One Trading LLC is a market maker in the options listed on B. RILEY FINANCIAL, INC. The number of Shares reported as beneficially owned includes options to buy 413,100 Shares. Group One Trading LLC is both long and short calls and puts that have an expiration date within 60 days and beyond 60 days. 2.8% 852,795 0 852,795 0 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. GROUP ONE TRADING LLC Kyle Tondo-Kramer 05/14/2025