Chudnovsky Yekaterina

SEC source: 0001979324-26-000002 · wk-form4_1788379464.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,750

Underlying: Common Stock · 21,750 shares

Expires 2036-08-31

F1 · derivative.exercise_date: The stock option represents the annual non-employee director equity award to the Reporting Person and shall vest and become exercisable in full on the earlier of (A) August 31, 2027, the one-year anniversary of the date of grant, and (B) the annual meeting of the Issuer's stockholders held in 2027, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date. No additional equity award will be made to the Reporting Person in connection with the 2026 annual meeting of stockholders.

SEC source: 0001493152-26-026424 · ownership.xml · derivative · entry 3

Chudnovsky Yekaterina · CIK 0001979324 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Common Stock · 12,500 shares

Expires 2036-05-22

F3 · derivative.exercise_date: The stock option will vest in substantially equal monthly installments over the 12 months following the date of grant (or, in the event the 2027 Annual Meeting occurs prior to the first anniversary of the date of grant, any remaining unvested portion of the stock option will vest on the date of such 2027 Annual Meeting), subject to the Reporting Person's continued service on the Issuer's Board through the applicable vesting date.

SEC source: 0001493152-26-026424 · ownership.xml · nonDerivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,250

F1 · shares: The Reporting Person was granted 6,250 restricted stock units ("RSUs") pursuant to the Issuer's 2021 Equity Incentive Plan, which RSUs will vest in full on the earlier of (i) the one-year anniversary of the date of grant, and (ii) the date that the Issuer's 2027 annual meeting of stockholders (the "2027 Annual Meeting") is held, subject to the Reporting Person's continued service with the Issuer.

SEC source: 0001641172-25-016111 · ownership.xml · derivative · entry 2

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,000

Underlying: Common Stock · 33,000 shares

Expires 2035-06-20

F2 · derivative.exercise_date: The Stock Option will vest in twelve (12) equal monthly installments following the date of grant, subject to the Reporting Person's continued service on the Board of Directors.

SEC source: 0000950170-25-081741 · ownership.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 103,225

Underlying: Common Stock · 103,225 shares

Expires 2030-06-03

F1 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of GKCC, LLC and may be deemed to beneficially own the shares held by GKCC, LLC.

SEC source: 0001601485-25-000084 · wk-form4_1747771529.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,900

Underlying: Common Stock · 7,900 shares

Expires 2035-05-19

F1 · shares: The stock option shall vest and become exercisable in full on the earlier of (A) May 19, 2026, the one-year anniversary of the date of grant and (B) the next annual meeting of the Company's stockholders after the grant date, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

F1 · derivative.exercise_date: The stock option shall vest and become exercisable in full on the earlier of (A) May 19, 2026, the one-year anniversary of the date of grant and (B) the next annual meeting of the Company's stockholders after the grant date, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

SEC source: 0000950170-25-035494 · ownership.xml · derivative · entry 2

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 0

Underlying: Common Stock · 3,442,341 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The Convertible Note had a stated maturity date of February 15, 2026. The Convertible Note, including any accrued but unpaid interest, was converted into shares of Common Stock on March 5, 2025 at a conversion price of $5.81 per share.

F2 · derivative.expiration_date: The Convertible Note had a stated maturity date of February 15, 2026. The Convertible Note, including any accrued but unpaid interest, was converted into shares of Common Stock on March 5, 2025 at a conversion price of $5.81 per share.

F1 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of GKCC, LLC and may be deemed to beneficially own the shares held by GKCC, LLC.

SEC source: 0000950170-25-035494 · ownership.xml · nonDerivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 5,416,212

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of GKCC, LLC and may be deemed to beneficially own the shares held by GKCC, LLC.

SEC source: 0001601485-24-000091 · wk-form4_1732537993.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,100

Underlying: Common Stock · 4,100 shares

Expires 2034-11-21

F1 · shares: The stock option shall vest and become exercisable in full on the earlier of (A) November 21, 2025, the one-year anniversary of the date of grant and (B) the next annual meeting of the Company's stockholders after the grant date, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

F1 · derivative.exercise_date: The stock option shall vest and become exercisable in full on the earlier of (A) November 21, 2025, the one-year anniversary of the date of grant and (B) the next annual meeting of the Company's stockholders after the grant date, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

SEC source: 0001140361-24-037346 · form4.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 3,442,341

Underlying: Common Stock · 3,442,341 shares

Expires not disclosed

F1 · shares: On August 12, 2024, GKCC, LLC (the "Purchaser") purchased from the Issuer a convertible note with an aggregate principal amount of $20,000,000 (the "Convertible Note"). The Convertible Note is convertible into shares of common stock of the Issuer at a conversion price of $5.81 per share, subject to adjustment in certain circumstances. Therefore, the Convertible Note is initially convertible into approximately 3,442,341 shares of common stock of the Issuer.

F2 · derivative.exercise_date: The Convertible Note will mature on February 15, 2026, unless earlier converted in accordance with the terms of the Convertible Note. Interest on the Convertible Note is payable in cash and will accrue and be payable quarterly on the principal amount equal to 3% per annum.

F2 · derivative.expiration_date: The Convertible Note will mature on February 15, 2026, unless earlier converted in accordance with the terms of the Convertible Note. Interest on the Convertible Note is payable in cash and will accrue and be payable quarterly on the principal amount equal to 3% per annum.

F3 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of the Purchaser and may be deemed to beneficially own the shares held by the Purchaser.

SEC source: 0001140361-24-032163 · form4.xml · derivative · entry 2

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,600,000

Underlying: Common Stock · 1,600,000 shares

Expires not disclosed

F3 · derivative.exercise_date: Each Pre-Funded Warrant will be exercisable by the holder at any time on or after July 1, 2024 at an exercise price equal to $0.01 per share, subject to adjustments as provided under the terms of the Pre-Funded Warrant, subject to a post-exercise beneficial ownership limitation of 19.99%.

F4 · derivative.expiration_date: The Pre-Funded Warrants do not have an expiration date.

SEC source: 0001140361-24-032163 · form4.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,600,000

Underlying: Common Stock · 1,600,000 shares

Expires not disclosed

F1 · derivative.exercise_date: Each Common Warrant will be exercisable by the holder at any time on or after July 1, 2024 at an exercise price equal to $5.00 per share, subject to adjustments as provided under the terms of the Common Warrant, subject to a post-exercise beneficial ownership limitation of 19.99%.

F2 · derivative.expiration_date: The Common Warrants expire on July 1, 2029.

SEC source: 0001493152-24-024823 · ownership.xml · derivative · entry 2

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,000

Underlying: Common Stock · 33,000 shares

Expires 2034-06-11

F2 · derivative.exercise_date: The Stock Option will vest in twelve (12) equal monthly installments following the date of grant, subject to the Reporting Person's continued service on the Board of Directors.

SEC source: 0000950170-24-034198 · ownership.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 1,032,702

Underlying: Common Stock · 1,032,702 shares

Expires not disclosed

F1 · derivative.exercise_date: Each Pre-Funded Warrant will be exercisable by GKCC, LLC at any time on or after March 19, 2024 at an exercise price equal to $0.01 per share, subject to adjustments as provided under the terms of the Pre-Funded Warrant, subject to a post-exercise beneficial ownership limitation of 19.99%, unless stockholder approval is obtained.

F2 · derivative.expiration_date: The Pre-Funded Warrants do not have an expiration date.

F3 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of GKCC, LLC and may be deemed to beneficially own the shares held by GKCC, LLC.

SEC source: 0001140361-23-060238 · form4.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,100

Underlying: Common Stock · 4,100 shares

Expires 2033-12-28

F1 · shares: The stock option, granted in lieu of the annual equity award under the Issuer's Amended and Restated Non-Employee Director Compensation Policy, vests in full on the earlier of (A) December 28, 2024, the one-year anniversary of the grant date, or (B) immediately prior to the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

F1 · derivative.exercise_date: The stock option, granted in lieu of the annual equity award under the Issuer's Amended and Restated Non-Employee Director Compensation Policy, vests in full on the earlier of (A) December 28, 2024, the one-year anniversary of the grant date, or (B) immediately prior to the next annual meeting of the Issuer's stockholders, subject to the Reporting Person continuing to provide services to the Issuer through such vesting date.

SEC source: 0001209191-23-059683 · doc4.xml · nonDerivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

GKCC, LLC · CIK 0001977769 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by GKCC, LLC

Disclosed balance after: 1,915,639

F1 · ownership.nature: Yekaterina (Katie) Chudnovsky is the sole member and manager of GKCC, LLC and may be deemed to beneficially own the shares held by GKCC, LLC.

SEC source: 0001209191-23-047062 · doc4.xml · derivative · entry 2

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,670

Underlying: Common Stock · 16,670 shares

Expires 2033-08-22

F2 · derivative.exercise_date: The Stock Option will vest in ten (10) equal monthly installments following the date of grant and any remaining unvested shares will become fully vested and exercisable on the date of the 2024 annual shareholder meeting, subject to the Reporting Person's continued service on the Board of Directors.

SEC source: 0001209191-23-047062 · doc4.xml · derivative · entry 1

Chudnovsky Yekaterina · CIK 0001979324 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2033-08-22

F1 · derivative.exercise_date: The Stock Option will vest in thirty-six (36) equal monthly installments following the date of grant, subject to the Reporting Person's continued service on the Board of Directors.