StepStone Group Inc

(a) Change in Control Severance Agreement.

On May 20, 2025, we entered into a Change in Control Severance Agreement with David Y. Park, our Chief Financial Officer, pursuant to which Mr. Park is eligible to receive the following severance benefits in the event his employment is terminated without “cause” or he resigns for “good reason” after we experience a “change in control” (each as defined in the Change in Control Severance Agreement): (i) a lump sum cash severance payment equal to two times the sum of (A) Mr. Park’s base salary and (B) his annual bonus earned for the preceding fiscal year (including any portion paid in cash and any portion granted as equity awards), (ii) 24 months of Company-paid group health plan continuation, and (iii) accelerated vesting of all unvested equity or equity-based awards, carried interest awards and awards under any incentive fee plan (with any performance-based vesting conditions determined in accordance with the applicable plan or award agreement). The severance benefits are subject to Mr. Park’s execution and non-revocation of a release of claims in favor of the Company.

The foregoing summary of the Change in Control Severance Agreement does not purport to be complete and is qualified in its entirety by reference to the complete terms of the Change in Control Severance Agreement filed as Exhibit 10.20 hereto, which is incorporated herein by reference.

(b) Trading Arrangements.

During the quarter ended March 31, 2025, none of our directors or officers (as defined in Exchange Act Rule 16a-1(f))adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.