Initial ownership (Form 3) 5 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
June 15, 2026 RTB Common stock, par value $0.001 53,048 Indirect
June 15, 2026 RTB Common stock, par value $0.001 3,494,888 Indirect
June 15, 2026 RTB Common stock, par value $0.001 233,049 Indirect
June 15, 2026 RTB Stock Options [F3]→ Common Stock, par value $0.001 (72,941) 72,941 Indirect
June 15, 2026 RTB Warrant to purchase common stock [F4]→ Common Stock, par value $0.001 (698,978) 698,978 Indirect