Li Gang

SEC source: 0001415889-25-011031 · form4-04182025_050403.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 353,720

F1 · kind: Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units ("RSUs"). These shares were not sold by the Reporting Person.

F2 · balance_after: Includes 276,586 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.

SEC source: 0001415889-25-009410 · form4-04012025_050416.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 374,473

F1 · shares: Represents shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person on March 28, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Incentive Award Plan. The RSUs will vest, and an equal number of shares of Class A Common Stock will be deliverable to the reporting person, in three equal installments on the first, second and third anniversaries of the Grant Date, subject to continued employment or service through each applicable vesting date.

F2 · balance_after: Includes 318,427 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.

SEC source: 0001415889-25-003678 · form4-02112025_090211.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 224,473

F1 · kind: This transaction was effected pursuant to an automatic sell-to-cover instruction adopted by the Reporting Person on February 9, 2024 to cover applicable withholding taxes on the vesting of restricted stock units. The automatic sell-to-cover instructions were intended to comply with the requirements of Rule 10b5-1(c). The sale was not a discretionary trade by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.13 to $1.26, 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 ranges set forth in this footnote to this Form 4.

F3 · balance_after: Includes 168,427 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.

SEC source: 0001415889-24-011049 · form4-04172024_050416.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 240,382

F1 · kind: Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units ("RSUs"). These shares were not sold by the Reporting Person.

F1 · shares: Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units ("RSUs"). These shares were not sold by the Reporting Person.

F2 · balance_after: Includes 210,800 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.

SEC source: 0001415889-24-003445 · form4-02122024_070214.xml · derivative · entry 2

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,118

Underlying: Class A Common Stock · 127,118 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents shares of Class A Common Stock underlying performance vesting RSUs ("PSUs") granted to the reporting person on the Grant Date pursuant to the Issuer's 2021 Incentive Award Plan. The PSUs vest in one installment following the end of a three-year period (the "Initial Performance Period") commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date. If following the Initial Performance Period there are PSUs that have not vested, then such PSUs remain eligible to vest in an additional installment following the end of a five-year period commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date.

F4 · derivative.exercise_price: The number of PSUs reported represents the maximum number of PSUs that may vest following certification by the Issuer's compensation committee. The share price thresholds for vesting of the PSUs are as follows: under $12.5, 0%; $12.5 or greater, 25%; $15 or greater, 50%; $17.5 or greater, 75%; and $20 or greater, 100%. A specified percentage of the PSUs will vest based on the average closing price of Class A Common Stock during any consecutive 100-calendar-day period during the Initial Performance Period, assuming that the average closing price during the last 30-calendar-day period in the Initial Performance also exceeds the highest share price threshold achieved. Otherwise, the number of PSUs that vest will be based on the average closing price during the last 30 calendar days of the Initial Performance Period using the same share price thresholds.

F3 · derivative.exercise_date: Represents shares of Class A Common Stock underlying performance vesting RSUs ("PSUs") granted to the reporting person on the Grant Date pursuant to the Issuer's 2021 Incentive Award Plan. The PSUs vest in one installment following the end of a three-year period (the "Initial Performance Period") commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date. If following the Initial Performance Period there are PSUs that have not vested, then such PSUs remain eligible to vest in an additional installment following the end of a five-year period commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date.

F4 · derivative.exercise_date: The number of PSUs reported represents the maximum number of PSUs that may vest following certification by the Issuer's compensation committee. The share price thresholds for vesting of the PSUs are as follows: under $12.5, 0%; $12.5 or greater, 25%; $15 or greater, 50%; $17.5 or greater, 75%; and $20 or greater, 100%. A specified percentage of the PSUs will vest based on the average closing price of Class A Common Stock during any consecutive 100-calendar-day period during the Initial Performance Period, assuming that the average closing price during the last 30-calendar-day period in the Initial Performance also exceeds the highest share price threshold achieved. Otherwise, the number of PSUs that vest will be based on the average closing price during the last 30 calendar days of the Initial Performance Period using the same share price thresholds.

F3 · derivative.expiration_date: Represents shares of Class A Common Stock underlying performance vesting RSUs ("PSUs") granted to the reporting person on the Grant Date pursuant to the Issuer's 2021 Incentive Award Plan. The PSUs vest in one installment following the end of a three-year period (the "Initial Performance Period") commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date. If following the Initial Performance Period there are PSUs that have not vested, then such PSUs remain eligible to vest in an additional installment following the end of a five-year period commencing on the Grant Date, subject to the achievement of certain Class A Common Stock price milestones and the reporting person's continued employment or service through such date.

F4 · derivative.expiration_date: The number of PSUs reported represents the maximum number of PSUs that may vest following certification by the Issuer's compensation committee. The share price thresholds for vesting of the PSUs are as follows: under $12.5, 0%; $12.5 or greater, 25%; $15 or greater, 50%; $17.5 or greater, 75%; and $20 or greater, 100%. A specified percentage of the PSUs will vest based on the average closing price of Class A Common Stock during any consecutive 100-calendar-day period during the Initial Performance Period, assuming that the average closing price during the last 30-calendar-day period in the Initial Performance also exceeds the highest share price threshold achieved. Otherwise, the number of PSUs that vest will be based on the average closing price during the last 30 calendar days of the Initial Performance Period using the same share price thresholds.

SEC source: 0001415889-24-003445 · form4-02122024_070214.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 252,641

F1 · shares: Represents shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person on February 9, 2024 (the "Grant Date") pursuant to the Issuer's 2021 Incentive Award Plan. The RSUs will vest, and an equal number of shares of Class A Common Stock will be deliverable to the reporting person, in three equal installments on the first, second and third anniversaries of the Grant Date, subject to continued employment or service through each applicable vesting date.

F2 · balance_after: Includes 252,641 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.

SEC source: 0001415889-23-006630 · form4-04182023_060425.xml · nonDerivative · entry 1

Li Gang · CIK 0001972030 · CHIEF MANUFACTURING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,523

F1 · shares: Represents shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), underlying restricted stock units ("RSUs") granted to the reporting person on April 14, 2023 (the "Grant Date") pursuant to the Issuer's 2021 Incentive Award Plan. The RSUs will vest, and an equal number of shares of Class A Common Stock will be deliverable to the reporting person, in three equal installments on the first, second and third anniversaries of the Grant Date, subject to continued employment through each applicable vesting date.

F2 · balance_after: Includes125,523 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.