SPCE

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of restricted stock units ("RSUs") granted on March 16, 2023.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of restricted stock units ("RSUs") granted on March 16, 2023.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of restricted stock units ("RSUs") granted on March 16, 2023.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the vesting of restricted stock units granted on December 5, 2022.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

The reported balance was adjusted by one share due to a rounding correction.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

The reported balance was adjusted by two shares due to a rounding correction.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

The reported balance was adjusted by one share due to a rounding correction.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

The reported balance was adjusted by two shares due to a rounding correction.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

Represents an award of restricted stock units (RSUs), which vests in full on the one-year anniversary of the grant date; provided that, if (i) Reporting Person will not stand for re-election to continue to serve on the Board following the date of the Issuer's next annual meeting of stockholders following the grant date and (ii) the next annual meeting date is earlier than the one-year anniversary of the grant date, then the RSUs will vest on the next annual meeting date. The RSUs will be settled in shares of the Issuer's common stock upon vesting.

The price reported in Column 4 is a weighted average price. The shares reported in this Form 4 were purchased in separate transactions at prices ranging from $2.485 to $2.49, 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 purchased at each separate price within the price range set forth in this footnote.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 20, 2025, which vested with respect to 1/3 of the RSUs on March 20, 2026; and thereafter 1/3 of the RSUs will vest on the second anniversary of the Grant Date; and the remaining 1/3 of the RSUs will vest on the third anniversary of the Grant Date, in each case subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents only the unvested portion of the RSUs granted on March 20, 2025, and does not include RSUs with different vesting terms.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 20, 2025, which vested with respect to 1/3 of the RSUs on March 20, 2026; and thereafter 1/3 of the RSUs will vest on the second anniversary of the Grant Date; and the remaining 1/3 of the RSUs will vest on the third anniversary of the Grant Date, in each case subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents only the unvested portion of the RSUs granted on March 20, 2025, and does not include RSUs with different vesting terms.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 16, 2023.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 16, 2023.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 16, 2022.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 20, 2025, which vested with respect to 1/3 of the RSUs on March 20, 2026; and thereafter 1/3 of the RSUs will vest on the second anniversary of the Grant Date; and the remaining 1/3 of the RSUs will vest on the third anniversary of the Grant Date, in each case subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents only the unvested portion of the RSUs granted on March 20, 2025, and does not include RSUs with different vesting terms.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 20, 2025, which vested with respect to 1/3 of the RSUs on March 20, 2026; and thereafter 1/3 of the RSUs will vest on the second anniversary of the Grant Date; and the remaining 1/3 of the RSUs will vest on the third anniversary of the Grant Date, in each case subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents only the unvested portion of the RSUs granted on March 20, 2025, and does not include RSUs with different vesting terms.

Represents the numbers of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the annual vesting of restricted stock units ("RSUs") granted on March 20, 2025.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 17, 2022.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

Represents the numbers of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the annual vesting of restricted stock units ("RSUs") granted on March 20, 2025.

Represents the numbers of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the annual vesting of restricted stock units ("RSUs") granted on March 20, 2025.

RSUs convert into common stock on a one-for-one basis.

Represents an award of RSUs granted on March 16, 2023, which vested with respect to 25% of the RSUs on March 16, 2024, and the remaining 75% of the RSUs will vest in 12 quarterly installments thereafter, beginning June 16, 2024, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Represents only the unvested portion of the RSUs granted on March 16, 2023, and does not include RSUs with different vesting terms.

Represents the numbers of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the annual vesting of restricted stock units ("RSUs") granted on March 20, 2025.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 16, 2023.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the quarterly vesting of RSUs granted on March 16, 2022.

Represents the number of shares of common stock withheld by the Issuer to cover the Reporting Person's tax withholding obligation upon the vesting of restricted stock units granted on December 5, 2022.

Represents an award of restricted stock units (the "RSUs"), which will vest in three annual installments as follows: one-third of the RSUs will vest on each of the first three anniversaries of the Grant Date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents an award of restricted stock units (the "RSUs"), which will vest in three annual installments as follows: one-third of the RSUs will vest on each of the first three anniversaries of the Grant Date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents an award of restricted stock units (the "RSUs"), which will vest in three annual installments as follows: one-third of the RSUs will vest on each of the first three anniversaries of the Grant Date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Represents an award of restricted stock units (the "RSUs"), which will vest in three annual installments as follows: one-third of the RSUs will vest on each of the first three anniversaries of the Grant Date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, in cash.

Restricted stock units convert into common stock on a one-for-one basis.

Represents an award of restricted stock units, which fully vested with respect to the remaining 50% of the restricted stock units and were settled in cash based on the value of a share of common stock on March 16, 2026. The restricted stock units may be settled in shares of the Issuer's common stock or, in the Issuer's discretion, cash, upon vesting.

Reflects the cash settlement of previously vested restricted stock units.