SSTI · Soundthinking, Inc. · Insider Trading

Represents the withholding 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 Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The price reported in Column 4 is the weighted average price. The shares were sold in multiple transactions at prices ranging from $5.96 to $6.27. The Reporting Person will provide on request to the staff of SEC, the issuer or any security holder of the issuer, full information regarding the number of shares sold at each separate price.

Represents the withholding 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.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the Reporting Person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Reporting Person is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this Award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Plan) or immediately prior to the effectiveness of the Participant's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Participant is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Participant's termination of Continuous Service.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the Reporting Person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Reporting Person is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Reporting Person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this Award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Plan) or immediately prior to the effectiveness of the Participant's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Participant is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Participant's termination of Continuous Service.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this Award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Plan) or immediately prior to the effectiveness of the Participant's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Participant is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Participant's termination of Continuous Service.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this Award will vest upon the earlier of June 3, 2027 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Plan) or immediately prior to the effectiveness of the Participant's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the Participant is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the Participant's termination of Continuous Service.

Represents restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon settlement. 1/12 of the shares subject to the award vest on the first Quarterly Date (as defined below) that occurs following the vesting commencement date (June 1, 2026), and 1/12 of the total number of shares subject to the award vest on each Quarterly Date thereafter, subject to the recipient's Continuous Service (as defined in the Issuer's 2017 Equity Incentive Plan, as amended) through each applicable Quarterly Date. "Quarterly Date" means each of February 28, May 31, August 31, and November 30, of a given calendar year.

25% of the shares subject to the option shall vest on June 1, 2027, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's Continuous Service to the Issuer through each applicable vesting date.

Represents restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon settlement. 1/12 of the shares subject to the award vest on the first Quarterly Date (as defined below) that occurs following the vesting commencement date (May 31, 2026), and 1/12 of the total number of shares subject to the award vest on each Quarterly Date thereafter, subject to the recipient's Continuous Service (as defined in the Issuer's 2017 Equity Incentive Plan, as amended) through each applicable Quarterly Date. "Quarterly Date" means each of February 28, May 31, August 31, and November 30, of a given calendar year.

Represents restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon settlement. 1/12 of the shares subject to the award vest on the first Quarterly Date (as defined below) that occurs following the vesting commencement date (May 31, 2026), and 1/12 of the total number of shares subject to the award vest on each Quarterly Date thereafter, subject to the recipient's Continuous Service (as defined in the Issuer's 2017 Equity Incentive Plan, as amended) through each applicable Quarterly Date. "Quarterly Date" means each of February 28, May 31, August 31, and November 30, of a given calendar year.

Represents restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon settlement. 1/12 of the shares subject to the award vest on the first Quarterly Date (as defined below) that occurs following the vesting commencement date (May 31, 2026), and 1/12 of the total number of shares subject to the award vest on each Quarterly Date thereafter, subject to the recipient's Continuous Service (as defined in the Issuer's 2017 Equity Incentive Plan, as amended) through each applicable Quarterly Date. "Quarterly Date" means each of February 28, May 31, August 31, and November 30, of a given calendar year.

The option was exercisable at any time prior to expiration. The reporting person was assigned on previously written put options that were automatically exercised by the broker in accordance with their terms. The reported price reflects the strike price.

Represents the withholding 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.

25% of the shares subject to the option shall vest on March 6, 2027, and the remainder shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date.

The Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The price reported in Column 4 is the weighted average price. The shares were sold in multiple transactions at prices ranging from $5.95 to $6.18. The Reporting Person will provide on request to the staff of SEC, the issuer or any security holder of the issuer, full information regarding the number of shares sold at each separate price.

The Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The price reported in Column 4 is the weighted average price. The shares were sold in multiple transactions at prices ranging from $5.92 to $6.23. The Reporting Person will provide on request to the staff of SEC, the issuer or any security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.56 to $11.98. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.77 to $11.98. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.56 to $11.98. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.76 to $11.98. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.56 to $11.98. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

This amendment corrects the transaction dates, which were originally reported as all occurring on September 2, 2025. The sales are now properly reported as occurring on September 2, 3, and 4, 2025, based on final trade date information received after the original filing.

The shares were sold at prices ranging from $11.47 to $11.88. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

The Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The shares were sold at prices ranging from $12.54 to $12.66. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

The Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The shares were sold at prices ranging from $12.65 to $12.76. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign her position as a member of the Board of Directors as a condition of the Change in Control or is removed from her position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign her position as a member of the Board of Directors as a condition of the Change in Control or is removed from her position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign her position as a member of the Board of Directors as a condition of the Change in Control or is removed from her position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

Represents Restricted Stock Units ("RSUs"). All of the RSUs subject to this award will vest upon the earlier of June 4, 2026 and the Company's next annual meeting of stockholders. In addition, all such RSUs will vest upon a Change in Control (as defined in the Issuer's 2017 Equity Incentive Plan (the "Plan")) or immediately prior to the effectiveness of the reporting person's resignation or removal (and contingent upon the effectiveness of a Change in Control) in the event that the reporting person is required to resign his position as a member of the Board of Directors as a condition of the Change in Control or is removed from his position as a member of the Board of Directors in connection with the Change in Control. Notwithstanding the foregoing, vesting shall terminate upon the reporting person's termination of Continuous Service, as defined in the Plan.

The Reporting Person made a prior election to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units, as well as any related brokerage commission fees.

The shares were sold at prices ranging from $15.23 to $15.58. The Reporting Person will provide on request to the SEC, the issuer or the security holder of the issuer, full information regarding the number of shares sold at each separate price.