Plus Channel Ltd - 18 Nov 2025 SCHEDULE 13D/A Report for Zhihu Inc. Class A ordinary shares, par value US$0.000125 per share (ZH)

Filing Manager: Plus Channel Ltd
Reporting Manager: Plus Channel Limited
Security: Zhihu Inc. Class A ordinary shares, par value US$0.000125 per share
Symbol: ZH
Shares outstanding: 255M shares
Disclosed Ownership: 22.9M shares
Ownership: 9%
Form type: SCHEDULE 13D/A
Filing time: 21 Nov 2025, 06:54:05 UTC
Date of event: 18 Nov 2025
Previous filing: 19 Sep 2025
SEC: View on sec.gov

Reporting Managers (2)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Plus Channel Limited	9%	22.9M	22.9M	0	/s/ TSANG SUK HAN	TSANG SUK HAN, Director of Kastle Limited which is the director of Plus Channel Limited	0002061808
Kastle Limited	9%	22.9M	22.9M	0	/s/ TSANG SUK HAN	TSANG SUK HAN, Director