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Hudson Technologies 10% owner Hartree Partners LP buys $1.3 million of shares

Open market purchase reported on Form 4, filed Nov 2, 2026.

Octans ResearchPublished

Snapshot

Hartree Partners LP, a holder of more than 10% of the shares of Hudson Technologies (HDSN), bought 300,000 shares in open market purchases between Oct 29, 2026 and Nov 2, 2026, about $1.3 million at an average price of $4.38 a share, according to a Form 4 filed with the SEC on Nov 2, 2026.

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Market Data

Latest prices for the companies covered in this article
Company1D %Price
($HDSN)▲ +2.08%4.41

as of 16:00 ET · Realtime derived data

What We Know

The filing lists 3 open market purchase lines: • Oct 29, 2026: 200,000 shares at $4.44. • Oct 30, 2026: 58,710 shares at $4.25. • Nov 2, 2026: 41,290 shares at $4.25.

After the last purchase, the filing reports 5,648,517 shares held directly in that account.

Octans View

The purchases raised the holding reported in that account by about 5.6%, computed from the filed share counts. An open market purchase is made with the insider's own money at the market price, unlike option exercises or stock awards, which this brief excludes. The filing does not say why the insider bought.

Bear Case · Room for Disagreement

Limits. Insiders must report trades within two business days; this brief covers one filing and does not net it against sales by the same person or other insiders. Prices are as filed; where a line shows a weighted average, the filing's footnotes give the range.

Method and source. Octans Research reads the structured Form 4 filed with the SEC, keeps open market purchases (code P) only, and computes the total value and the average price from the filed share counts and prices. The filed price must sit within 25% of the closing price on the trade date. The text is generated by a fixed template; no model wrote it.

Chart

$HDSN adjusted close, last 6 months $HDSN adjusted close, last 6 months: series falling from 5.1 to 4.4 (−13.7%) from 2026-05-11 to 2026-11-04. Scale 4 to 7. 4567 2026-05-112026-11-04 $HDSN ADJUSTED CLOSE, LAST 6 MONTHS −13.7% 4.41
Source: Tiingo · As of 2026-11-04Indicative, not investment advice.

Sources

  1. [1]SEC EDGAR — Form 4 filed by Hartree Partners LP for Hudson Technologies, Nov 2, 2026

These are the sources this piece was drafted from. How we verify. Found an error? Tell us and we correct it in public.

$1.3M

Hartree Partners LP, a holder of more than 10% of the shares of Hudson Technologies (HDSN), bou… · Snapshot

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