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Ostin Technology Group (OST) 10K Form and Latest SEC Filings 2026

Ostin Technology Group logo
$1.70 -0.03 (-1.45%)
As of 03:30 PM Eastern

Latest Ostin Technology Group SEC Filings & Recent Activity

Ostin Technology Group (NASDAQ:OST) has submitted 63+ documents to the U.S. Securities and Exchange Commission (SEC) since 2021. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in Ostin Technology Group's financial statements. The most recent filing was a Form 3 submitted on April 2, 2026.

20-F
Ostin Technology Group Files Annual Report on Jan. 26, 2026

The 20-F contains Ostin Technology Group's audited financial statements, revenue, earnings, and risk factors for the prior fiscal year.

View earnings history

Ostin Technology Group SEC Filing History

Browse Ostin Technology Group's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
04/02/2026 7:50 AM
CUI RONGGUO (2126590) Reporting
Ostin Technology Group (1803407) Issuer
Form 3
Initial statement of beneficial ownership of securities  
04/02/2026 6:01 AM
Ostin Technology Group (1803407) Issuer
Yin Xiao Hong (2126061) Reporting
Form 3
Initial statement of beneficial ownership of securities  
04/02/2026 5:31 AM
Mein John Carl (2126044) Reporting
Ostin Technology Group (1803407) Issuer
Form 3
Initial statement of beneficial ownership of securities  
04/01/2026 7:50 AM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
01/26/2026 3:06 PM
Ostin Technology Group (1803407) Filer
Form 20-F
Registration statement / Annual report / Transition report  
01/08/2026 3:15 PM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
11/13/2025 3:00 PM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
10/21/2025 12:50 PM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
09/26/2025 4:00 PM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
07/10/2025 7:41 AM
Ostin Technology Group (1803407) Filer
Form 6-K/A
07/03/2025 1:00 PM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/30/2025 7:59 AM
Ostin Technology Group (1803407) Filer
Form 6-K
Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934  
06/30/2025 8:15 AM
Ostin Technology Group (1803407) Subject
Streeterville Capital LLC (1851416) Filed by
Form SCHEDULE 13G
06/25/2025 3:00 PM
Liao Yen-Kai (2069591) Filed by
Ostin Technology Group (1803407) Subject
Form SCHEDULE 13G/A
06/25/2025 3:00 PM
Lo Sheng-Lun (2070445) Filed by
Ostin Technology Group (1803407) Subject
Form SCHEDULE 13G/A
05/29/2025 5:12 AM
Hendri Jones (2070410) Filed by
Ostin Technology Group (1803407) Subject
Form SCHEDULE 13G
05/29/2025 5:18 AM
Liao Yen-Kai (2069591) Filed by
Ostin Technology Group (1803407) Subject
Form SCHEDULE 13G
(Data available from 1/1/2016 forward)

Ostin Technology Group SEC Filings - Frequently Asked Questions

Ostin Technology Group (OST) has submitted 63+ filings to the SEC since 2021. You can browse the complete history or filter by form type using the tools above.

Ostin Technology Group's fiscal year ends on September 30. The company typically files its 10-K annual report by the end of November, covering the prior fiscal year's financial results. Key financial data from these reports is available on Ostin Technology Group's financial statements page.

The most recent filing was a Form 3 submitted on April 2, 2026. View the full filing using the link above.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NASDAQ:OST) was last updated on 5/5/2026 by MarketBeat.com Staff.
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