Hartree Partners, LP
SEC Form 4 insider trading activity
Hartree Partners, LP has filed 10 SEC Form 4 filings (16 transaction rows) across 1 company, with disclosures dating back to 2026. 10 of those filings fall inside the rolling window. Most recent filing: Sep 28, 2026.
On the most recent filing, Hartree Partners, LP is listed as 10% Owner at HUDSON TECHNOLOGIES INC /NY. Inside the rolling window, Hartree Partners, LP reported 16 open-market purchases totaling $6.6M in HDSN and no open-market sales. The largest disclosed transaction in the window is a purchase of 288,111 HDSN shares on Jul 1, 2026, worth $1.7M.
Companies traded
Other insiders at HDSN
Insider Buying
$6.6M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| HDSN | 10% Owner | Purchase | 118,549 | $604K | Sep 28 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 2,502 | $13K | Sep 23 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 11,013 | $56K | Sep 23 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 11,136 | $57K | Sep 18 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 5,317 | $27K | Sep 4 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 9,446 | $52K | Aug 26 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 91,166 | $501K | Aug 26 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 5,198 | $29K | Aug 14 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 52,104 | $312K | Jul 31 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 17,842 | $107K | Jul 22 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 47,708 | $286K | Jul 22 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 4,634 | $28K | Jul 8 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 600 | $4K | Jul 8 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 204,789 | $1.2M | Jul 2 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 288,111 | $1.7M | Jul 2 | SEC ↗ | |
| HDSN | 10% Owner | Purchase | 271,302 | $1.6M | Jul 2 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Hartree Partners, LP made?
Hartree Partners, LP has filed 10 SEC Form 4 filings (16 transaction rows) across 1 company since 2026.
Which companies does Hartree Partners, LP trade?
Hartree Partners, LP has filed SEC Form 4 disclosures for 1 company, including HDSN.
When was Hartree Partners, LP's most recent SEC Form 4 filing?
Hartree Partners, LP's most recent SEC Form 4 filing on Tracefour is dated Sep 28, 2026.
What is Hartree Partners, LP's total buy and sell value in the current window?
Inside the rolling retention window, Hartree Partners, LP bought $6.6M and sold $0 based on SEC Form 4 filings.
What was Hartree Partners, LP's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 288,111 HDSN shares on 2026-07-01, worth $1.7M, per SEC Form 4 filings.