Hartree Partners, LP, 10% owner at Hudson Technologies, bought HDSN on Sep 24, 2026
Data as of Oct 16
- Traded
- Sep 24, 2026
- Disclosed
- Sep 28, 2026
- Filed
- 4 days after the trade
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
HDSN since disclosure
−1.8%
Similar stocks (XLB) since disclosure
+2.9%
XLB — its sector index fund
Change in closing price from Sep 28, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.
Our take
None of our tested rules fired on this trade.