X0508 4 2025-02-11 0 0001567900 BLACKBOXSTOCKS INC. BLBX 0001108565 WINSPEAR ROBERT L C/O BLACKBOXSTOCKS INC. 5430 LBJ FREEWAY, SUITE 1485 DALLAS TX 75201 1 1 0 0 Chief Financial Officer 0 Common Stock, par value $0.001 2025-02-11 4 A 0 25000 0 A 68250 D Includes 25,000 new shares of common stock reported on this Form 4 that are directly owned by Robert Winspear, 37,000 shares of common stock owned by Winspear Investments LLC which is 100% owned by Mr. Winspear and his wife, and 6,250 shares of common stock owned by ACM Winspear Investments L.P. of which Mr. Winspear is general partner. Robert Winspear 2025-02-12