Thomas Keck - 18 Sep 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: 82,683,423 shares
Disclosed Ownership: 4,299,538 shares
Ownership: 5.2%
Form type: SCHEDULE 13D
Filing time: 18 Sep 2025, 16:31:58 UTC
Date of event: 18 Sep 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%	4,299,538	4,299,538	0	/s/ Jennifer Ishiguro, Attorney-in-Fact	Thomas Keck	0001821978