TRAX · First Tracks Biotherapeutics, Inc. · Insider Trading

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs shall vest as to 1/3 of the total shares on September 15, 2024, and thereafter vests as to 1/3 of the total RSUs on September 15, 2025; and as to 1/3 of the total RSUs on September 15, 2026, subject to the provision of services to the Company on each vesting date.

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.62 to $45.28 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The stock option is fully vested.

The stock option is fully vested.

In addition to the shares the Reporting Person owns reported in Table I, the Reporting Person also holds additional options to purchase up to an aggregate of 99,320 shares of common stock and 6,500 restricted stock units.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 15, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 15, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 15, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 15, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 15, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 15, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 2, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 2, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 2, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 2, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Represents performance-based restricted stock units ("PSUs") that were earned by the Reporting Person upon the achievement of certain performance criteria as certified by the Compensation Committee of the Issuer's Board of Directors on August 2, 2026.

Each PSU represents a conditional right to receive one share of the Issuer's Common Stock.

The PSUs vest and settle over two years; 50% vests on August 2, 2027 and 50% vests on July 1, 2028, subject to the continuing service of the Reporting Person on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs shall vest as to 33.33% of the total shares on June 15, 2024, and thereafter vests as to 33.33% of the total RSUs on June 15, 2025; and as to 33.33% of the total RSUs on June 15, 2026, subject to the provision of services to the Company on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

Each restricted stock award ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on June 15, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 25% of the total RSUs annually commencing on May 12, 2027 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on May 12, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

In addition to the options to purchase a total of 13,600 shares of common stock as set forth in Table II, the Reporting Person also holds additional options to purchase up to an aggregate of 123,700 shares of common stock, which options vest according to their terms.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 25% of the total RSUs annually commencing on May 12, 2027 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on May 12, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

In addition to the options to purchase a total of 271,100 shares of common stock as set forth in Table II, the Reporting Person also holds additional options to purchase up to an aggregate of 1,035,941 shares of common stock, which options vest according to their terms.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 25% of the total RSUs annually commencing on May 12, 2027 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on May 12, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

In addition to the options to purchase a total of 72,300 shares of common stock as set forth in Table II, the Reporting Person also holds additional options to purchase up to an aggregate of 507,310 shares of common stock, which options vest according to their terms.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 1/12 of the total shares monthly commencing on June 12, 2026 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on May 12, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

In addition to the options to purchase a total of 72,300 shares of common stock as set forth in Table II, the Reporting Person also holds additional options to purchase up to an aggregate of 337,140 shares of common stock, which options vest according to their terms.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 25% of the total RSUs annually commencing on May 12, 2027 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

The RSUs vests as to 100% of the total RSUs on the date of the Issuer's 2027 annual meeting of shareholders, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on April 20, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on April 20, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The stock option vests as to 25% of the total shares on April 20, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.

1/4 of the RSUs shall vest on April 20, 2027 and 1/4th of the RSUs shall vest in equal annual installments until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Effective as of a pro rata distribution by AnaptysBio to holders of its shares of common stock pursuant to the Separation and Distribution Agreement dated as of April 20, 2026, by and between AnaptysBio and First Tracks (the "Separation Agreement"), each outstanding option to acquire AnaptysBio shares of common stock was adjusted so that such option became an option to acquire First Tracks shares of common stock and an option to acquire AnaptysBio shares of common stock. As a result, the Reporting Person acquired options to acquire First Tracks shares of common stock in an amount determined in accordance with the Separation Agreement.

The stock option is fully vested and exercisable.