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Charles & Colvard, Ltd. (CTHR) 10K Form and Latest SEC Filings 2026

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As of 05/1/2026

Latest Charles & Colvard, Ltd. SEC Filings & Recent Activity

Charles & Colvard, Ltd. (NASDAQ:CTHR) has submitted 255+ documents to the U.S. Securities and Exchange Commission (SEC) since 2017. 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. The most recent filing was a Form 8-K submitted on May 1, 2026.

8-K
Charles & Colvard, Ltd. Files Current Report on May. 1, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-Q
Charles & Colvard, Ltd. Files Quarterly Report on Aug. 4, 2025

The 10-Q contains Charles & Colvard, Ltd.'s unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

Charles & Colvard, Ltd. SEC Filing History

Browse Charles & Colvard, Ltd.'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
05/01/2026 3:30 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/20/2026 3:30 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/06/2026 3:30 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/27/2026 4:28 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/17/2026 3:30 PM
Charles & Colvard, Ltd. (1015155) Filer
Form NT 10-Q
01/07/2026 3:45 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/05/2025 3:53 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/17/2025 4:16 PM
Charles & Colvard, Ltd. (1015155) Filer
Form NT 10-Q
10/16/2025 3:30 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/09/2025 2:30 PM
Charles & Colvard, Ltd. (1015155) Issuer
Ethara Capital LLC (2090666) Reporting
Form 3
Initial statement of beneficial ownership of securities  
09/30/2025 4:20 PM
Charles & Colvard, Ltd. (1015155) Filer
Form NT 10-K
09/25/2025 2:46 PM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form DEFN14A
09/25/2025 6:50 AM
Charles & Colvard, Ltd. (1015155) Subject
Pham Duc Hoang (2079212) Filed by
Form SCHEDULE 13D/A
09/24/2025 8:14 AM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form SCHEDULE 13D/A
09/12/2025 3:40 PM
Charles & Colvard, Ltd. (1015155) Filer
Form D
Notice of Exempt Offering of Securities 
09/12/2025 8:09 AM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/10/2025 8:39 AM
Charles & Colvard, Ltd. (1015155) Subject
Pham Duc Hoang (2079212) Filed by
Form PREC14A
09/10/2025 8:34 AM
Charles & Colvard, Ltd. (1015155) Subject
Pham Duc Hoang (2079212) Filed by
Form PREC14A
09/09/2025 7:25 AM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form PREC14A
09/08/2025 6:50 PM
Bhanderi Ruten (2082192) Filed by
Charles & Colvard, Ltd. (1015155) Subject
Form SCHEDULE 13D
09/05/2025 3:32 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/03/2025 4:24 PM
Charles & Colvard, Ltd. (1015155) Subject
Form PREC14A
09/02/2025 4:27 PM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form SCHEDULE 13D/A
08/27/2025 8:25 PM
Charles & Colvard, Ltd. (1015155) Subject
Pham Duc Hoang (2079212) Filed by
Form SCHEDULE 13D/A
08/25/2025 8:44 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/25/2025 8:45 PM
Charles & Colvard, Ltd. (1015155) Issuer
PETE CLINT J. (1690219) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 8:45 PM
Bhanderi Ruten (2082192) Reporting
Charles & Colvard, Ltd. (1015155) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 8:46 PM
Charles & Colvard, Ltd. (1015155) Issuer
O'CONNELL DON (1707186) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 8:46 PM
Butler Anne M (1401704) Reporting
Charles & Colvard, Ltd. (1015155) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 8:47 PM
Charles & Colvard, Ltd. (1015155) Issuer
Tu James (1564957) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 8:48 PM
Charles & Colvard, Ltd. (1015155) Issuer
GOLDMAN NEAL I (1182567) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/25/2025 3:43 PM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form SCHEDULE 13D/A
08/22/2025 6:19 PM
Charles & Colvard, Ltd. (1015155) Subject
Pham Duc Hoang (2079212) Filed by
Form SCHEDULE 13D
08/19/2025 8:37 PM
Bhanderi Ruten (2082192) Reporting
Charles & Colvard, Ltd. (1015155) Issuer
Form 3
Initial statement of beneficial ownership of securities  
08/19/2025 8:37 PM
Charles & Colvard, Ltd. (1015155) Issuer
Tu James (1564957) Reporting
Form 3
Initial statement of beneficial ownership of securities  
08/04/2025 3:31 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/04/2025 3:34 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/04/2025 3:38 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
07/25/2025 3:42 PM
Charles & Colvard, Ltd. (1015155) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/16/2025 7:10 PM
Charles & Colvard, Ltd. (1015155) Subject
Riverstyx Capital Management LLC (2015561) Filed by
Form SCHEDULE 13D/A
06/02/2025 4:24 PM
Charles & Colvard, Ltd. (1015155) Filer
Form SD
Specialized Disclosure Report  
05/16/2025 4:06 PM
Charles & Colvard, Ltd. (1015155) Filer
Form NT 10-Q
(Data available from 1/1/2016 forward)

Charles & Colvard, Ltd. SEC Filings - Frequently Asked Questions

Charles & Colvard, Ltd. (CTHR) has submitted 255+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

Charles & Colvard, Ltd.'s fiscal year ends on June 30. The company typically files its 10-K annual report by the end of August, covering the prior fiscal year's financial results.

The most recent filing was a Form 8-K submitted on May 1, 2026. This was a current report on a material business event.

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:CTHR) was last updated on 5/5/2026 by MarketBeat.com Staff.
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