TANG CAPITAL MANAGEMENT LLC - Form 4 Filing

This Form 4 filing details transactions by TANG CAPITAL MANAGEMENT LLC and TANG KEVIN, beneficial owners of Boundless Bio, Inc. (BOLD). On June 25, 2026, TANG CAPITAL MANAGEMENT LLC acquired 145,880 shares of Common Stock at a weighted-average price of $2.48 and 510 shares at $2.56. On June 26, 2026, they acquired 75,047 shares at $2.55 and 134 shares at $2.54. On June 29, 2026, the LLC acquired 63,985 shares at $2.47 and 777 shares at $2.48. These transactions, reported by Kevin Tang, reflect his direct and indirect ownership interests through various partnerships and entities, including Tang Capital Partners, LP. The prices reported are weighted-average prices, with specific ranges detailed in the footnotes.