HCKT · Hackett Group, Inc.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 8,274 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 8,274 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 8,274 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 11,728 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 78,520 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 41,223 unvested RSUs.

Represents a grant of restricted stock units ("RSUs"). The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 78,520 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 8,274 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis

Includes 5,771 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 8,274 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 5,771 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 5,771 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 8,274 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 5,771 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 8,274 unvested RSUs.

Represents grants of restricted stock units (RSUs). The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 11,728 unvested RSUs.

Represents a grant of restricted stock units ("RSUs"). The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 41,223 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 5,771 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 12, 2027. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 8,274 unvested RSUs.

Each PRSU represents a contingent right to receive one share of Common Stock. The number of shares of Common Stock that will be acquired on vesting of the PRSUs is contingent upon the achievement of pre-established stock price hurdles during the Performance Period. Notwithstanding the date of achievement of the stock price hurdles during the Performance Period, the PRSUs subject to the second and third stock price hurdles may not vest until the second and third anniversary of the grant date, respectively, which requires continued service through such date.

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition.

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition.

Includes 69,255 unvested RSUs.

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition

Includes 16,201 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 16,201 unvested RSUs.

Each PRSU represents a contingent right to receive one share of Common Stock. The number of shares of Common Stock that will be acquired on vesting of the PRSUs is contingent upon the achievement of pre-established stock price hurdles during the Performance Period. Notwithstanding the date of achievement of the stock price hurdles during the Performance Period, the PRSUs subject to the second and third stock price hurdles may not vest until the second and third anniversary of the grant date, respectively, which requires continued service through such date.

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition

Includes 131,913 unvested RSUs.

Each PRSU represents a contingent right to receive one share of Common Stock. The number of shares of Common Stock that will be acquired on vesting of the PRSUs is contingent upon the achievement of pre-established stock price hurdles during the Performance Period. Notwithstanding the date of achievement of the stock price hurdles during the Performance Period, the PRSUs subject to the second and third stock price hurdles may not vest until the second and third anniversary of the grant date, respectively, which requires continued service through such date.

Represents the number of shares of Common Stock that were acquired on vesting of the performance stock units ("PRSUs") granted on September 16, 2024, upon the achievement of the first of three pre-established stock price hurdles over a performance period beginning on September 16, 2024, and ending on December 31, 2028 (the "Performance Period") and the satisfaction of the time-based vesting condition

Represents shares withheld to satisfy tax withholding obligations.

Includes 131,913 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 69,255 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 16,201 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 3,441 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 3,441 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 3,441 unvested RSUs.

Exempt disposition to issuer pursuant to Rule 16b-3(e).

Includes 3,441 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 1,147 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 16,201 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 3,441 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 131,913 unvested RSUs.

Represents a grant of restricted stock units ("RSUs"). The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 69,256 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 3,441 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 3,441 unvested RSUs.

Represents shares withheld to satisfy tax withholding obligations.

Includes 69,255 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 1,147 unvested RSUs.

Represents a grant of restricted stock units ("RSUs"). The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 131,914 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 3,441 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 1,147 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 1,147 unvested RSUs.

Represents a grant of RSUs issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 3,441 unvested RSUs.

Represents a grant of restricted stock units (RSUs) issued in connection with the Company's Outside Director Compensation Program. The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 1,147 unvested RSUs.

Represents grants of restricted stock units ("RSUs"). The RSUs vest in three equal installments beginning February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 12,378 unvested RSUs.

Represents grants of RSUs. The RSUs vest in full on February 14, 2026. Upon vesting of the RSUs, the reporting person receives shares of common stock on a one-for-one basis.

Includes 16,202 unvested RSUs.