Hudson Technologies (HDSN) 10% Owner Hartree Partners Buys 118,549 Shares

What Happened Hartree Partners, LP — reported as a 10% owner of Hudson Technologies (HDSN) — acquired 118,549 shares in an open-market purchase on September 24, 2026. The weighted-average price was $5.10 per share (range $5.0750–$5.1000), for a reported total purchase value of approximately $604,446. This was a purchase (buy), which is generally viewed more informative for investors than routine sales.

Key Details

• Transaction date: 2026-09-24; Form 4 filed: 2026-09-28.
• Transaction type/code: Open-market purchase (P).
• Shares bought: 118,549 at a weighted-average price of $5.10 (prices ranged $5.0750–$5.1000).
• Reported total value: $604,446.
• Shares owned after transaction: Not specified on the Form 4.
• Footnotes: F1 — Hartree disclaims beneficial ownership except for its pecuniary interest. F2 — price is a weighted average across multiple trades; Hartree will provide per-trade details on request.
• Timeliness: Filing was dated four days after the trade; Section 16 filers typically must report within two business days, so this appears to be later than usual.

Context

• This filing reflects institutional buying by a significant (10%) shareholder, not an executive or director trade. Institutional purchases can signal accumulation but do not, by themselves, indicate management sentiment or future company performance.
• No derivatives, option exercises, gifts, or tax-withholding events are reported in this transaction.