AMBQ

Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments following the date of grant, with each annual RSU vesting to occur on the earlier of: (i) the first, second, or third anniversary of the grant date, as applicable, or (ii) the date of the Company's first, second, or third annual stockholder meeting following the grant date, as applicable (or the date immediately prior to the applicable annual stockholder meeting if the Reporting Person's service as a director ends at such meeting due to the director's failure to be re-elected or the director not standing for re-election), subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

47,619 shares subject to the option vested on October 1, 2025, 1/4 of the remaining 95,238 shares subject to the option vested on June 2, 2026, and 1/36 of the remaining shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $80.30 to $81.27 per share. 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 Reporting Person exercises sole voting and dispositive control over the shares held by Triumph Way Investment Inc.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $81.325 to $81.755 per share. 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 Reporting Person exercises sole voting and dispositive control over the shares held by Triumph Way Investment Inc.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $79.30 to $80.28 per share. 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 Reporting Person exercises sole voting and dispositive control over the shares held by Triumph Way Investment Inc.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $78.29 to $79.26 per share. 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 Reporting Person exercises sole voting and dispositive control over the shares held by Triumph Way Investment Inc.

1/48 of the shares subject to the option vested on June 26, 2021, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

1/4 of the shares subject to the option vested on November 3, 2017, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

1/4 of the shares subject to the option vested on August 16, 2019, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $70.02 to $71.0097 per share. 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.

47,619 shares subject to the option vested on October 1, 2025, 1/4 of the remaining 95,238 shares subject to the option vest on June 2, 2026, and 1/36 of the remaining shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.

1/4 of the shares subject to the option vested on January 1, 2024, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $71.025 to $71.85 per share. 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 reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.295 to $70.24 per share. 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 reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.61 to $70.435 per share. 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.

47,619 shares subject to the option vested on October 1, 2025, 1/4 of the remaining 95,238 shares subject to the option vest on June 2, 2026, and 1/36 of the remaining shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.

The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $70.00 to $70.45 per share. 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 reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $68.22 to $69.01 per share. 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.

1/4 of the shares subject to the option vested on February 21, 2020, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

1/4 of the shares subject to the option vested on August 16, 2019, and 1/48 of the shares subject to the option vested in equal monthly installments thereafter, subject to the Reporting Person's continued service.

Represents the sale of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.55 to $26.36, 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.

Represents the sale of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.68, 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.

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on October 1, 2027, and 1/12 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

The warrant is exercisable in whole or in part, on the earlier of (i) June 1, 2028, (ii) immediately prior to the completion of the Issuer's initial public offering or (iii) immediately prior to the consummation of an acquisition or asset transfer of the Issuer, until the warrant's expiration on June 1, 2034.

The Reporting Person exercises sole voting and dispositive control over the shares held by Matter Venture Partners Fund I, L.P.

The Reporting Person exercises sole voting and dispositive control over the shares held by Matter Venture Partners Fund I, L.P.

Represents the grant of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on January 1, 2027, and 1/16 of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).

Represents the grant of RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. 25% of the shares subject to the RSU will vest on April 1, 2026, and 25% of the shares subject to the RSU will vest quarterly thereafter, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan).