HSIAO TZU-KAI - 08 May 2025 SCHEDULE 13G Report for Ostin Technology Group Co., Ltd. Class A Ordinary Shares, $0.001 par value per share (OST)

Filing Manager: HSIAO TZU-KAI
Reporting Manager: HSIAO TZU-KAI
Security: Ostin Technology Group Co., Ltd. Class A Ordinary Shares, $0.001 par value per share
Symbol: OST
Shares outstanding: 107M shares
Disclosed Ownership: 6.88M shares
Ownership: 6.4%
Form type: SCHEDULE 13G
Filing time: 29 May 2025, 16:00:30 UTC
Date of event: 08 May 2025
Next filing: 13 Jun 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
HSIAO TZU-KAI	6.4%	6.88M	6.88M	0	/s/ HSIAO TZU-KAI	HSIAO TZU-KAI