Sirenia Capital Management LP Reports New 8.8% Stake in Tonix Pharmaceuticals Holding Corp.

On May 15, 2026, Sirenia Capital Management LP and Alex Silverstein filed a Schedule 13G disclosing an 8.8% ownership stake in Tonix Pharmaceuticals Holding Corp. (TNXP). The reporting persons beneficially own 1,297,470 shares of common stock, which includes 615,025 shares issuable upon the exercise of warrants held by SILV Fund, Ltd., an investment fund managed by Sirenia. Alex Silverstein, as the managing member of Sirenia's general partner, shares voting and dispositive power over these securities. The filing indicates that the shares were acquired in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. The ownership percentage is based on 14,205,401 shares outstanding as of March 27, 2026. This represents a new significant holding for the reporting persons, as their previous ownership was recorded at 0.0%. The principal business office for both reporting persons is located in Miami Beach, Florida.