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Hudson Technologies Inc /Ny (HDSN)10% owner bought ~$57K

Hartree Partners, 10% owner at Hudson Technologies Inc /Ny, bought ~$57K of Hudson Technologies Inc /Ny shares.

~$57K
Approx. value · 11K sh @ $5.10
5.22M
Holds after · shares reported
Traded
Sep 16, 2026
Filed
Sep 18, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Jul 20, 2026Insider10% owner purchased ~$107K of HDSN shares in the open market
  2. Jul 21, 2026Insider10% owner purchased ~$286K of HDSN shares in the open market
  3. Jul 29, 2026Insider · 7 days before results10% owner purchased ~$312K of HDSN shares in the open market
  4. Aug 5, 2026Company filing · Form 8-K · ResultsReported its results
  5. Aug 12, 2026Insider10% owner purchased ~$29K of HDSN shares in the open market
  6. Aug 24, 2026Insider10% owner purchased ~$52K of HDSN shares in the open market
  7. Aug 25, 2026Insider10% owner purchased ~$501K of HDSN shares in the open market
  8. Sep 2, 2026Insider10% owner purchased ~$27K of HDSN shares in the open market
  9. Sep 16, 2026 · this disclosureInsider10% owner purchased ~$57K of HDSN shares in the open market

What came next

  1. Sep 21, 2026Insider10% owner purchased ~$13K of HDSN shares in the open market
  2. Sep 23, 2026Insider10% owner purchased ~$56K of HDSN shares in the open market
  3. Sep 24, 2026Insider10% owner purchased ~$604K of HDSN shares in the open market
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Hudson Technologies Inc /Ny

For Hudson Technologies Inc /Ny, OQRO holds 11 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its HDSN page.

Other recent filings by Hartree Partners, LP, 10% owner

The full history of Hartree Partners, LP, 10% owner is on the profile page.

How this filing works

Other disclosures at Hudson Technologies Inc /Ny

Everything OQRO holds on this company is on its HDSN page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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OQRO describes public disclosures and context calculated from them. It does not give personalized advice and does not recommend any transaction. How OQRO treats data