HUDSON TECHNOLOGIES INC /NY (HDSN)
Data as of , from SEC Form 4 filings.
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About HUDSON TECHNOLOGIES INC /NY (HDSN)
The SEC lists HUDSON TECHNOLOGIES INC /NY under CIK 0000925528, in machinery, equipment and supplies. It is grouped with Industrials companies on this site.
HDSN Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 11 | 371,981 | $2.04M |
HDSN insider transactions (Form 4)
5034 Form 4 filings on record, the earliest from Nov 12, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 118,549 | $5.10 footnote F2 | $604K | |
| ||||||
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 2,502 | $5.10 footnote F2 | $13K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 11,013 | $5.10 | $56K | |
| ||||||
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 11,136 | $5.10 | $57K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 5,317 | $5.10 | $27K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 9,446 | $5.50 | $52K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 91,166 | $5.50 footnote F2 | $501K | |
| ||||||
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 5,198 | $5.50 | $29K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 52,104 | $5.99 | $312K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 17,842 | $5.99 footnote F2 | $107K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 47,708 | $5.99 footnote F3 | $286K | |
| ||||||
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 4,634 | $5.99 | $28K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 600 | $5.99 | $4K | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 204,789 | $5.68 footnote F2 | $1.16M | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 288,111 | $5.88 footnote F3 | $1.70M | |
| Hartree Partners, LP - 10% Owner | Open-market purchase | Common Stock, par value $0.01 | 271,302 | $5.97 footnote F4 | $1.62M | |
| ||||||
| Alan Sheriff - Director | Grant or award | Common Stock | 3,219 | $0.00 | - | |
| Alan Sheriff - Director | Grant or award | Stock Options | 15,360 | $0.00 | - | |
| Eric A. Prouty - Director | Grant or award | Common Stock | 4,440 | $0.00 | - | |
| Eric A. Prouty - Director | Grant or award | Stock Options | 21,186 | $0.00 | - | |
 Richard Parrillo - Director | Grant or award | Stock Options | 31,780 | $0.00 | - | |
| Loan Nguyen Mansy - Director | Grant or award | Common Stock | 8,881 | $0.00 | - | |
| Loan Nguyen Mansy - Director | Grant or award | Stock Options | 21,186 | $0.00 | - | |
| Nicole E. Bulgarino - Director | Grant or award | Stock Options | 31,780 | $0.00 | - | |
| Jeffrey R. Feeler - Director | Grant or award | Common Stock | 3,219 | $0.00 | - | |
| Jeffrey R. Feeler - Director | Grant or award | Stock Options | 15,360 | $0.00 | - | |
| Richard Parrillo - Director | Open-market purchase | Common Stock | 10,000 | $4.83 | $48K | |
 Brian J. Bertaux - Officer | Open-market purchase | Common Stock | 2,000 | $4.87 | $10K | |
| Loan Nguyen Mansy - Director | Open-market purchase | Common Stock | 3,600 | $4.96 | $18K | |
| Loan Nguyen Mansy - Director | Open-market purchase | Common Stock | 1,400 | $4.97 | $7K | |
| Richard Parrillo - Director | Open-market purchase | Common Stock | 3,600 | $4.96 | $18K | |
| Richard Parrillo - Director | Open-market purchase | Common Stock | 1,400 | $4.97 | $7K | |
| Nicole E. Bulgarino - Director | Open-market purchase | Common Stock | 550 | $4.85 | $3K | |
| Eric A. Prouty - Director | Open-market purchase | Common Stock | 5,000 | $4.84 | $24K | |
| Alan Sheriff - Director | Open-market purchase | Common Stock | 5,200 | $4.88 | $25K | |
| Jeffrey R. Feeler - Director | Open-market purchase | Common Stock | 5,100 | $4.92 | $25K | |
| Kenneth Gaglione - Officer | Open-market purchase | Common Stock | 5,000 | $4.90 | $24K | |
| Alan Sheriff - Director | Grant or award | Common Stock | 4,065 | $0.00 | - | |
| Jeffrey R. Feeler - Director | Grant or award | Common Stock | 4,065 | $0.00 | - | |
| Kathleen Houghton - Officer | Option exercise | Common Stock | 120,000 | $0.75 | $90K | |
| Kathleen Houghton - Officer | Tax withholding / forfeiture | Common Stock | 44,873 | $7.10 | $319K | |
| Kathleen Houghton - Officer | Option exercise | Common Stock | 47,619 | $1.60 | $76K | |
| Kathleen Houghton - Officer | Tax withholding / forfeiture | Common Stock | 21,797 | $7.10 | $155K | |
| Kathleen Houghton - Officer | Option exercise | Common Stock | 50,888 | $3.81 | $194K | |
| Kathleen Houghton - Officer | Tax withholding / forfeiture | Common Stock | 34,382 | $7.10 | $244K | |
| Kathleen Houghton - Officer | Option exercise | Stock Option | 120,000 | $0.00 | - | |
| Kathleen Houghton - Officer | Option exercise | Stock Option | 47,619 | $0.00 | - | |
| Kathleen Houghton - Officer | Option exercise | Stock Option | 50,888 | $0.00 | - | |
| Kenneth Gaglione - Officer | Grant or award | Stock Option | 216,309 | $0.00 | - | |
 Vincent P. Abbatecola - Director | Open-market purchase | Common Stock | 3,500 | $6.79 | $24K | |
Item 8.01, 9.01
Item 2.02, 9.01
Item 8.01
Item 5.07
HDSN insider trading FAQ
What is the latest insider trade for HDSN?
HUDSON TECHNOLOGIES INC /NY (HDSN) had 8 insider filings in the last 90 days, with the most recent on 2026-09-28. The full record for HDSN runs to 34 Form 4 filings, the earliest from 2024-11-12. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying HDSN stock?
11 insider purchases of HDSN were filed in the last 90 days, totaling $2.04M.
How many insiders are selling HDSN stock?
No insider sales of HDSN were filed in the last 90 days.
Where can I see HDSN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects HDSN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
- - Hartree Partners, LP view on EDGAR
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Learn more
- How to read insider buying signals
- What an open-market purchase by an insider can and cannot tell you.
- Insider activity in Industrials
- Where HDSN's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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