Hartree Partners buys 52,104 Hudson Technologies (HDSN) shares in reported trade

Rhea-AI Filing Summary

Hartree Partners, LP, a 10% owner of Hudson Technologies, reported purchasing 52,104 shares of Common Stock on 2026-07-29 at $5.99 per share. Following this open-market or private transaction, its direct holdings increased to 5,094,190 shares, subject to a pecuniary-interest beneficial ownership disclaimer.

Insider Trade Summary

Net Buyer: 52,104 shares

Net Buy 1 txn

Insider Hartree Partners, LP

Role 10% Owner

Bought 52,104 shs ($312K)

Type	Security	Shares	Price	Value
Purchase	Common Stock, par value $0.01 F1	52,104	$5.99	$312K

Holdings After Transaction: Common Stock, par value $0.01 — 5,094,190 shares (Direct)

Footnotes (1)

1. F1. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

Key Figures

Shares purchased: 52,104 shares Purchase price: $5.99 per share Shares held after transaction: 5,094,190 shares +1 more

4 metrics

Shares purchased 52,104 shares Common Stock acquired on 2026-07-29

Purchase price $5.99 per share Price for Common Stock purchased on 2026-07-29

Shares held after transaction 5,094,190 shares Direct holdings reported for Hartree Partners, LP following the purchase

Transaction code P Indicates a purchase in open market or private transaction

Key Terms

beneficial ownership, pecuniary interest, Section 16

3 terms

beneficial ownership regulatory

"The Reporting Person disclaims beneficial ownership of the securities reported herein except..."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest regulatory

"…except to the extent of its pecuniary interest therein, and this report shall not be..."

Section 16 regulatory

"…beneficial owner of such securities for purposes of Section 16 or for any other purpose."

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/31/2026 - 04:17 PM Accepted by SEC EDGAR 07/31/2026 - 04:16 PM Learn about SEC filing dates

FAQ

What insider transaction did Hartree Partners, LP report for Hudson Technologies (HDSN)?

Hartree Partners, LP reported purchasing 52,104 shares of Hudson Technologies Common Stock on 2026-07-29 at $5.99 per share, classified as a purchase in an open market or private transaction.

How many Hudson Technologies (HDSN) shares does Hartree Partners, LP hold after this Form 4 transaction?

After the reported purchase, Hartree Partners, LP’s direct holdings total 5,094,190 shares of Hudson Technologies Common Stock, according to the Form 4 ownership figure following the transaction.

Was the Hartree Partners, LP trade in Hudson Technologies (HDSN) under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not marked, indicating the reported purchase of 52,104 Hudson Technologies shares was not identified as being made under a Rule 10b5-1 trading plan.

What type of security did Hartree Partners, LP buy in Hudson Technologies (HDSN)?

Hartree Partners, LP purchased Common Stock of Hudson Technologies, with a par value of $0.01 per share, as specified in the Form 4’s non-derivative securities table.

Does Hartree Partners, LP claim full beneficial ownership of all reported HDSN shares?

No. A footnote states Hartree Partners, LP disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest, and that the report is not an admission of beneficial ownership under Section 16.

What does the transaction code “P” mean in the Hartree Partners, LP Form 4 for HDSN?

Transaction code “P” indicates a purchase of Common Stock in an open market or private transaction. In this case, it corresponds to buying 52,104 Hudson Technologies shares at $5.99 per share.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hartree Partners, LP

(Last) (First) (Middle)

1185 AVE OF THE AMERICAS

(Street)

NEW YORK NEW YORK 10036

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
HUDSON TECHNOLOGIES INC /NY [ HDSN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/29/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01(1)	07/29/2026		P		52,104	A	$5.99	5,094,190	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

	Hartree Partners, LP, By: /s/ Christine Stevenson, Chief Compliance Officer	07/31/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)