BOLD · Boundless Bio, Inc. · Insider Trading

These shares were purchased in multiple transactions at prices ranging from $2.37 to $2.40.

Tang Capital Partners, LP ("TCP") beneficially owns 691,177 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 950,804 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 691,170 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 678,598 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.

These shares were purchased in multiple transactions at prices ranging from $2.36 to $2.40.

Tang Capital Partners, LP ("TCP") beneficially owns 691,177 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 950,804 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 691,170 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 678,598 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.

The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.39 to $2.40. 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 range set forth in Footnotes 1 and 3 through 4.

Tang Capital Partners, LP ("TCP") beneficially owns 691,177 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 950,804 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 691,170 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 678,598 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.

These shares were purchased in multiple transactions at prices ranging from $2.33 to $2.40.

Tang Capital Partners, LP ("TCP") beneficially owns 688,494 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 937,213 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 688,487 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 675,915 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.

The Reporting Persons have delivered to the Issuer the full amount of the disgorgeable profit arising the purchases reported herein, in the amount of $1,723.10.

These shares were purchased in multiple transactions at prices ranging from $2.31 to $2.35.

Tang Capital Partners, LP ("TCP") beneficially owns 688,494 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 937,213 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 688,487 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 675,915 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.

The Reporting Persons have delivered to the Issuer the full amount of the disgorgeable profit arising the purchases reported herein, in the amount of $1,723.10.

These shares were purchased in multiple transactions at prices ranging from $2.32 to $2.35.

Tang Capital Partners, LP ("TCP") beneficially owns 688,494 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 937,213 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 688,487 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 675,915 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.

The Reporting Persons have delivered to the Issuer the full amount of the disgorgeable profit arising the purchases reported herein, in the amount of $1,723.10.

The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.31 to $2.35. 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 range set forth in Footnotes 2 and 4 through 6.

Tang Capital Partners, LP ("TCP") beneficially owns 688,494 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 937,213 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 688,487 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 675,915 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.

The Reporting Persons have delivered to the Issuer the full amount of the disgorgeable profit arising the sale reported herein, in the amount of $10,046.70.

The price reported herein is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $2.90 to $3.03. 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 sold at each price within the range set forth in Footnote 2.

Tang Capital Partners, LP ("TCP") beneficially owns 655,170 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 887,715 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 655,161 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 642,589 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.

The prices reported are weighted-average prices. These shares were all purchased at $2.44. 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 Footnote 1.

Tang Capital Partners, LP ("TCP") beneficially owns 655,170 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 893,434 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 655,161 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 655,170 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.

The prices reported are weighted-average prices. These shares were all purchased at $2.44. 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 Footnote 1.

Tang Capital Partners, LP ("TCP") beneficially owns 655,170 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 893,434 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 655,161 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 655,170 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.

The prices reported are weighted-average prices. These shares were all purchased at $2.44. 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 Footnote 1.

Tang Capital Partners, LP ("TCP") beneficially owns 655,170 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 893,434 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 655,161 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 655,170 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.

These shares were purchased in multiple transactions at prices ranging from $2.43 to $2.44.

Tang Capital Partners, LP ("TCP") beneficially owns 654,055 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 891,914 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 654,048 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 654,055 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.

These shares were all purchased at $2.44.

Tang Capital Partners, LP ("TCP") beneficially owns 654,055 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 891,914 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 654,048 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 654,055 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.

The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.41 to $2.44. 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 4.

Tang Capital Partners, LP ("TCP") beneficially owns 654,055 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 891,914 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 654,048 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 654,055 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.

These shares were purchased in multiple transactions at prices ranging from $2.35 to $2.44.

Tang Capital Partners, LP ("TCP") beneficially owns 639,395 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 871,923 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 639,390 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 639,395 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.

These shares were purchased in multiple transactions at prices ranging from $2.38 to $2.48.

Tang Capital Partners, LP ("TCP") beneficially owns 639,395 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 871,923 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 639,390 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 639,395 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.

The prices reported are weighted-average prices. These shares were all purchased at $2.48. 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 4.

Tang Capital Partners, LP ("TCP") beneficially owns 639,395 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 871,923 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 639,390 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 639,395 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.

These shares were purchased in multiple transactions at prices ranging from $2.42 to $2.48.

Tang Capital Partners, LP ("TCP") beneficially owns 618,407 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 843,301 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 618,403 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 618,407 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.

These shares were purchased in multiple transactions at prices ranging from $2.44 to $2.50.

Tang Capital Partners, LP ("TCP") beneficially owns 618,407 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 843,301 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 618,403 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 618,407 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.

The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.46 to $2.50. 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 4.

Tang Capital Partners, LP ("TCP") beneficially owns 618,407 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 843,301 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 618,403 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 618,407 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.

These shares were purchased in multiple transactions at prices ranging from $2.47 to $2.50.

Tang Capital Partners, LP ("TCP") beneficially owns 605,296 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 825,422 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 605,294 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 605,296 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.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

The stock option vested in substantially equal monthly installments over the 11 months following June 23, 2025. The final unvested portion vested on June 15, 2026, the date of the Issuer's 2026 annual meeting of stockholders.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

The stock option vested in substantially equal monthly installments over the 11 months following June 23, 2025. The final unvested portion vested on June 15, 2026, the date of the Issuer's 2026 annual meeting of stockholders.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

Represents a cashless stock option exercise by Kristina Burow. The net proceeds of such exercise were remitted to ARCH Venture Fund IX, L.P. (ARCH IX), ARCH Venture Fund IX Overage, L.P. (ARCH IX Overage), and ARCH Venture Fund X, L.P. (AVF X Overage LP). The stock option was granted to Kristina Burow in connection with her service on the board of directors of the Issuer.

These shares were purchased in multiple transactions at prices ranging from $2.46 to $2.50.

Tang Capital Partners, LP ("TCP") beneficially owns 605,296 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 825,422 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 605,294 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 605,296 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.

The prices reported are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $2.49 to $2.60. 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 5.

Tang Capital Partners, LP ("TCP") beneficially owns 605,296 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 825,422 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 605,294 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 605,296 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.

These shares were all purchased at $2.50.

Tang Capital Partners, LP ("TCP") beneficially owns 605,296 shares, Tang Capital Partners International, LP ("TCPI") beneficially owns 825,422 shares, Tang Capital Partners III, Inc. ("TCP III") beneficially owns 605,294 shares, and Tang Capital Partners IV, Inc. ("TCP IV") beneficially owns 605,296 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.

These shares were purchased in multiple transactions at prices ranging from $2.44 to $2.52.

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.

These shares were purchased in multiple transactions at prices ranging from $2.40 to $2.59.

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.

These shares were purchased in multiple transactions at prices ranging from $2.46 to $2.60.

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.

These shares were purchased in multiple transactions at prices ranging from $2.52 to $2.58.

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.

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.

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.

These shares were purchased in multiple transactions at prices ranging from $2.53 to $2.60.

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.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 15, 2026 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 15, 2027, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 15, 2026 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 15, 2027, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 15, 2026 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 15, 2027, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 15, 2026 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 15, 2027, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.

The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.

The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.

The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.

The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 23, 2025 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 23, 2026, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 23, 2025 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 23, 2026, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 23, 2025 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 23, 2026, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 23, 2025 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 23, 2026, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.

The stock option shall vest in substantially equal monthly installments over the 12 months following June 23, 2025 (or, in the event the next annual meeting of the issuer's stockholders occurs prior to June 23, 2026, any remaining unvested portion of the stock option will vest on the date of such annual meeting), subject to the reporting person's continuing service on the issuer's board of directors through such vesting date.