Hudson Technologies (HDSN) 10% Owner Hartree Partners Buys Shares

What Happened
Hartree Partners, LP — reported as a 10% owner of Hudson Technologies, Inc. (HDSN) — made an open-market purchase of 5,317 shares on 2026-09-02 at $5.10 per share, for a total of approximately $27,117. This transaction is a straight purchase (reporting code P), which investors often view as a more informative action than routine insider sales.

Key Details

• Transaction date and type: 2026-09-02 — Open-market purchase (Code P).
• Price and size: 5,317 shares at $5.10 per share; total ≈ $27,117.
• Filing: Report filed 2026-09-04 (appears timely for a Section 16 filing).
• Shares owned after transaction: Not specified in the reported data.
• Footnote: The filer disclaims beneficial ownership except to the extent of its pecuniary interest (i.e., Hartree Partners states it does not claim beneficial ownership beyond its economic interest).

Context
This filing is from an institutional 10% owner, not an individual executive. The reported purchase is relatively small in dollar terms (~$27k), so while it shows buying activity, it may not be material to the company’s overall ownership structure. The footnote disclaimer means Hartree is limiting claims of beneficial ownership, which can affect how much control or influence the firm actually has.