Certain Class A Common Stock of StepStone Group Inc. are subject to a Lock-Up Agreement Ending on 17-JUN-2021. These Class A Common Stock will be under lockup for 91 days starting from 18-MAR-2021 to 17-JUN-2021. Details: Issuer and Partnership, directors, executives and selling shareholders have agreed that for a period of 90 days after the date of this prospectus, we and the Partnership will not and will not publicly disclose the intention to undertake any of the foregoing: (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of, directly or indirectly, or submit to, or file with, the SEC a registration statement under the Securities Act relating to, any shares of common stock or any securities convertible into or exercisable or exchangeable for our common stock, or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of our common stock or any such other securities, or any partnership interest in the Partnership, whether any of these transactions is to be settled by delivery of shares of our common stock or such other securities, in cash or otherwise, without the prior written consent of J.P. Morgan Securities LLC, Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC.