Thomas Keck - Sep 18, 2025 SCHEDULE 13D Report for StepStone Group Inc. Class A Common Stock, Par Value $0.001 Per Share (STEP)

Filing Manager: Thomas Keck
Reporting Manager: Thomas Keck
Security: StepStone Group Inc. Class A Common Stock, Par Value $0.001 Per Share
Symbol: STEP
Shares outstanding: 82.7M shares
Disclosed Ownership: 4.3M shares
Ownership: 5.2%
Form type: SCHEDULE 13D
Date filed: 9/18/2025, 04:31 PM
Date of event: Sep 18, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Thomas Keck	5.2%	4.3M	4.3M	0	/s/ Jennifer Ishiguro, Attorney-in-Fact	Thomas Keck	0001821978