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Hudson Technologies (HDSN) 10K Form and Latest SEC Filings 2026

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Latest Hudson Technologies SEC Filings & Recent Activity

Hudson Technologies (NASDAQ:HDSN) has submitted 309+ 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 28, 2026.

Form 4
HUDSON TECHNOLOGIES INC /NY Reports Ownership Change on May. 21, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Hudson Technologies Files Current Report on May. 28, 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
Hudson Technologies Files Quarterly Report on May. 11, 2026

The 10-Q contains Hudson Technologies's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

Hudson Technologies SEC Filing History

Browse Hudson Technologies' 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
05/28/2026 3:15 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/21/2026 10:31 AM
Hudson Technologies (925528) Issuer
Parrillo Richard (1620726) Reporting
Form 4/A
05/21/2026 8:02 AM
Bertaux Brian J. (2032778) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2026 3:05 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/18/2026 7:35 AM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/15/2026 12:25 PM
Hudson Technologies (925528) Issuer
Mansy Loan Nguyen (1948762) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 12:21 PM
Hudson Technologies (925528) Issuer
Parrillo Richard (1620726) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 11:38 AM
Hudson Technologies (925528) Issuer
Sheriff Alan (1823076) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 11:39 AM
Hudson Technologies (925528) Issuer
Prouty Eric A (1620724) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 11:40 AM
Bulgarino Nicole E (1640972) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 11:36 AM
Gaglione Kenneth (1824089) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 11:36 AM
Feeler Jeffrey R (1369458) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/11/2026 3:05 PM
Hudson Technologies (925528) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
05/06/2026 3:16 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/24/2026 8:24 AM
Hudson Technologies (925528) Filer
Form ARS
04/24/2026 8:15 AM
Hudson Technologies (925528) Filer
Form DEF 14A
04/24/2026 8:19 AM
Hudson Technologies (925528) Filer
Form DEFA14A
04/14/2026 10:59 AM
Feeler Jeffrey R (1369458) Reporting
Hudson Technologies (925528) Issuer
Form 3
Initial statement of beneficial ownership of securities  
04/14/2026 10:59 AM
Feeler Jeffrey R (1369458) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/14/2026 11:00 AM
Hudson Technologies (925528) Issuer
Sheriff Alan (1823076) Reporting
Form 3
Initial statement of beneficial ownership of securities  
04/14/2026 11:00 AM
Hudson Technologies (925528) Issuer
Sheriff Alan (1823076) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/13/2026 8:00 AM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/09/2026 12:42 PM
DIMENSIONAL FUND ADVISORS LP (354204) Filed by
Hudson Technologies (925528) Subject
Form SCHEDULE 13G
03/27/2026 8:53 AM
Hudson Technologies (925528) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/18/2026 3:10 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/17/2026 3:44 PM
Hudson Technologies (925528) Subject
WESTERLY CAPITAL MANAGEMENT, LLC (1546172) Filed by
Form SCHEDULE 13G/A
02/02/2026 10:20 AM
Hudson Technologies (925528) Issuer
Stoody Robert (2107144) Reporting
Form 3
Initial statement of beneficial ownership of securities  
02/02/2026 8:01 AM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/30/2026 7:45 AM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/12/2026 1:51 PM
Houghton Kathleen (1824104) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/07/2026 11:15 PM
Hudson Technologies (925528) Filer
Form EFFECT
12/17/2025 3:15 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/16/2025 3:05 PM
Hudson Technologies (925528) Filer
Form S-3
Registration statement under Securities Act of 1933  
12/15/2025 3:48 PM
COLEMAN BRIAN F (1250706) Reporting
Hudson Technologies (925528) Issuer
Form 4/A
12/10/2025 3:43 PM
Hartree Partners, LP (1597857) Filed by
Hudson Technologies (925528) Subject
Form SCHEDULE 13D
12/09/2025 3:05 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/09/2025 2:30 PM
COLEMAN BRIAN F (1250706) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/01/2025 8:00 AM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/25/2025 3:23 PM
Gaglione Kenneth (1824089) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/24/2025 8:19 AM
Gaglione Kenneth (1824089) Reporting
Hudson Technologies (925528) Issuer
Form 3
Initial statement of beneficial ownership of securities  
11/18/2025 9:47 AM
ABBATECOLA VINCENT P (1250688) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
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11/05/2025 3:16 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/03/2025 3:16 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/22/2025 4:20 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/26/2025 9:15 AM
ABBATECOLA VINCENT P (1250688) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/01/2025 3:00 PM
Hudson Technologies (925528) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/01/2025 8:42 AM
Hudson Technologies (925528) Issuer
Prouty Eric A (1620724) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/24/2025 1:17 PM
Hudson Technologies (925528) Subject
WESTERLY CAPITAL MANAGEMENT, LLC (1546172) Filed by
Form SCHEDULE 13G
06/23/2025 3:06 PM
Hudson Technologies (925528) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/20/2025 9:54 AM
Hudson Technologies (925528) Issuer
Prouty Eric A (1620724) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/20/2025 9:56 AM
Hudson Technologies (925528) Issuer
Parrillo Richard (1620726) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/20/2025 9:56 AM
ABBATECOLA VINCENT P (1250688) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/20/2025 9:56 AM
Hudson Technologies (925528) Issuer
Mansy Loan Nguyen (1948762) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/20/2025 9:57 AM
Bulgarino Nicole E (1640972) Reporting
Hudson Technologies (925528) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

Hudson Technologies SEC Filings - Frequently Asked Questions

Hudson Technologies (HDSN) has submitted 309+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

Hudson Technologies's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results.

The most recent filing was a Form 8-K submitted on May 28, 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:HDSN) was last updated on 5/29/2026 by MarketBeat.com Staff.
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