Scott W. Hart - 26 Dec 2025 Form 4 Insider Report for StepStone Group Inc. (STEP)

Role: Chief Executive Officer, Director
Signature: /s/ Jennifer Ishiguro, Attorney-in-fact for Scott W. Hart
Issuer symbol: STEP
Transactions as of: 26 Dec 2025
Net transactions value: -$661,700
Form type: 4
Filing time: 29 Dec 2025, 19:14:52 UTC
Previous filing: 26 Nov 2025
Next filing: 28 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hart Scott W	Chief Executive Officer, Director	C/O STEPSTONE GROUP INC., 277 PARK AVENUE, 45TH FLOOR, NEW YORK	/s/ Jennifer Ishiguro, Attorney-in-fact for Scott W. Hart	29 Dec 2025	0001821974

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STEP	Class A Common Stock	Sale	$661,700	-10,000	-50%	$66.17	10,000	26 Dec 2025	By Trust	F1
holding	STEP	Class A Common Stock						50,883	26 Dec 2025	Direct
holding	STEP	Class B Common Stock						3,061,782	26 Dec 2025	By Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $65.53 to $66.47. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

Content

This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $65.53 to $66.47. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.