Loomis Sayles & Co L P - Sep 30, 2025 SCHEDULE 13G/A Report for SEI Investments Co Common Stock (SEIC)

Filing Manager: LOOMIS SAYLES & CO L P
Reporting Manager: Loomis, Sayles & Co., L.P.
Security: SEI Investments Co Common Stock
Symbol: SEIC
Shares outstanding: 124M shares
Disclosed Ownership: 8.98M shares
Ownership: 7.26%
Form type: SCHEDULE 13G/A
Date filed: 11/13/2025, 09:27 AM
Date of event: Sep 30, 2025
Previous filing: Aug 13, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Loomis, Sayles & Co., L.P.	7.26%	8.98M	7.44M	0	Mari Shimokawa	Deputy Chief Compliance Officer