Abiopharma

🔍 TANG KEVIN (Executive)

Company: Boundless Bio, Inc. (BOLD)

Report Date: 2026-06-25

Detailed Transactions and Holdings:

• Acquired 145,880 shares of Common Stock at $2.48 per share (Direct)
  Date: 2026-06-25 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,393,392.00 | transaction_form_type: 4 | Footnotes: F1, F2
• Acquired 510 shares of Common Stock at $2.56 per share (Direct)
  Date: 2026-06-25 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,393,902.00 | transaction_form_type: 4 | Footnotes: F3, F2
• Acquired 75,047 shares of Common Stock at $2.55 per share (Direct)
  Date: 2026-06-26 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,468,949.00 | transaction_form_type: 4 | Footnotes: F4, F2
• Acquired 134 shares of Common Stock at $2.54 per share (Direct)
  Date: 2026-06-26 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,469,083.00 | transaction_form_type: 4 | Footnotes: F5, F2
• Acquired 63,985 shares of Common Stock at $2.47 per share (Direct)
  Date: 2026-06-29 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,533,068.00 | transaction_form_type: 4 | Footnotes: F6, F2
• Acquired 777 shares of Common Stock at $2.48 per share (Direct)
  Date: 2026-06-29 | Code: P | equity_swap_involved: 0 | shares_owned_after: 2,533,845.00 | transaction_form_type: 4 | Footnotes: F7, F2

Footnotes:

• F1: The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.42 to $2.56. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the SEC staff, upon request, all information regarding the number of shares purchased at each price within the ranges set forth in Footnotes 1 and 3 through 7.
• F2: Tang Capital Partners, LP ("TCP") beneficially owns 580,669 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 791,839 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 580,668 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 580,669 shares. Kevin Tang is the sole manager of Tang Capital Management, LLC, which is the general partner of TCP and TCPI. Kevin Tang is the sole director and Chief Executive Officer of TCP III and TCP IV, which are indirectly wholly owned by TCP. Mr. Tang has a pecuniary interest in the shares beneficially held by TCP, TCPI, TCP III and TCP IV.
• F3: These shares were purchased in multiple transactions at prices ranging from $2.53 to $2.60.
• F4: These shares were purchased in multiple transactions at prices ranging from $2.46 to $2.60.
• F5: These shares were purchased in multiple transactions at prices ranging from $2.52 to $2.58.
• F6: These shares were purchased in multiple transactions at prices ranging from $2.40 to $2.59.
• F7: These shares were purchased in multiple transactions at prices ranging from $2.44 to $2.52.