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  4. [Form 4] First Tracks Biotherapeutics, Inc. Insider Trading Activity

Executive equity awards at First Tracks Biotherapeutics (TRAX) detailed

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

First Tracks Biotherapeutics granted Chief Business Officer Benjamin Stone new equity awards tied to the company’s common stock. He received an option to buy 72,300 shares at an exercise price of $17.81 per share, expiring on May 11, 2036. The option vests 25% on May 12, 2027, then in equal monthly installments over four years, conditioned on continued service.

Stone was also awarded 26,700 restricted stock units, each representing one share of common stock upon settlement for no consideration. These RSUs vest 25% annually starting on May 12, 2027, also subject to ongoing service. In addition to the new grant, he already holds options to purchase up to 337,140 shares of common stock under existing award terms.

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Insider STONE BENJAMIN
Role Chief Business Officer
Type Security Shares Price Value
Grant/Award Restricted Stock Unit 26,700 $0.00 --
Grant/Award Employee Stock Option (right to buy) 72,300 $0.00 --
Holdings After Transaction: Restricted Stock Unit — 26,700 shares (Direct, null); Employee Stock Option (right to buy) — 72,300 shares (Direct, null)
Footnotes (1)
  1. 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 337,140 shares of common stock, which options vest according to their terms.
Option grant size 72,300 shares Employee stock option granted on May 12, 2026
Option exercise price $17.81/share Exercise price for new 72,300-share option
Option expiration May 11, 2036 Expiration date of new option award
RSU grant size 26,700 units Restricted Stock Units granted on May 12, 2026
RSU-to-share ratio 1 share per RSU Each RSU delivers 1 common share upon settlement
Additional existing options 337,140 shares Preexisting options held by Benjamin Stone
Initial vesting date May 12, 2027 First vesting date for both options and RSUs
Employee Stock Option (right to buy) financial
"security_title: Employee Stock Option (right to buy)"
Restricted Stock Unit financial
"security_title: Restricted Stock Unit"
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
RSU financial
"Each restricted stock unit ("RSU") represents a contingent right"
Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.
vests financial
"The stock option vests as to 25% of the total shares"
exercise price financial
"conversion_or_exercise_price: "17.8100""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
STONE BENJAMIN
(Last)(First)(Middle)
10770 WATERIDGE CIRCLE, SUITE 210
(Street)
SAN DIEGO CALIFORNIA 92121
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
First Tracks Biotherapeutics, Inc. [ TRAX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Business Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit(1)05/12/2026A26,700 (2) (2)Common Stock26,700$026,700D
Employee Stock Option (right to buy)$17.8105/12/2026A72,300 (3)05/11/2036Common Stock72,300$072,300(4)D
Explanation of Responses:
1. Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration.
2. 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.
3. 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.
4. 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.
/s/ Ajim Tamboli, Attorney-in-Fact05/14/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What equity awards did TRAX grant to Benjamin Stone in this Form 4?

Benjamin Stone received an option to buy 72,300 shares of First Tracks Biotherapeutics common stock at $17.81 per share and 26,700 restricted stock units, each settling into one share of common stock for no cash consideration.

How do Benjamin Stone’s new stock options at TRAX vest?

The option for 72,300 shares vests 25% on May 12, 2027, then 1/48 of the total shares monthly until fully vested. Vesting is conditioned on Benjamin Stone continuing to provide services on each vesting date.

What is the vesting schedule for Benjamin Stone’s TRAX restricted stock units?

The 26,700 restricted stock units vest 25% each year starting on May 12, 2027. Each RSU delivers one share of common stock upon settlement, with vesting dependent on his continued service to First Tracks Biotherapeutics.

What additional option holdings does Benjamin Stone have at TRAX beyond this grant?

Beyond the newly granted 72,300-share option, Benjamin Stone also holds options to purchase up to an aggregate of 337,140 shares of First Tracks Biotherapeutics common stock. These preexisting options vest according to their own individual terms.

Does Benjamin Stone pay anything to receive the TRAX restricted stock units?

No cash payment is required to receive the restricted stock units. Each RSU represents a contingent right to receive one share of First Tracks Biotherapeutics common stock upon settlement for no consideration, subject to the specified vesting and service conditions.

When do Benjamin Stone’s new TRAX equity awards expire or settle?

The stock option to buy 72,300 shares expires on May 11, 2036. The restricted stock units have no stated expiration date; they settle into common stock as they vest under the defined annual schedule starting in 2027.