HDSN Director Adds 1,031 Shares via Option Exercise – Form 4

Hudson Technologies (HDSN) – Form 4 filing: Director Eric A. Prouty exercised 4,744 stock options at an exercise price of $7.35 on 07/31/2025 (code M).

Rhea-AI Filing Summary

Hudson Technologies (HDSN) – Form 4 filing: Director Eric A. Prouty exercised 4,744 stock options at an exercise price of $7.35 on 07/31/2025 (code M). To cover taxes/withholding (code F), 3,713 common shares were disposed of at $9.39. Net effect is an increase of 1,031 shares, bringing Prouty’s direct ownership to 148,852 shares. All 4,744 derivative options referenced in this filing are now exhausted and no derivative position remains.

Positive

• Director increased his direct HDSN shareholding by 1,031 shares, suggesting incremental insider confidence.

Negative

• Majority of exercised shares (3,713) were immediately disposed, limiting the magnitude of the insider’s net purchase.

Insights

Financial Analyst

TL;DR: Small net insider purchase; signal mildly positive but not material.

The director exercised options near expiration, paying $7.35 versus a current disposal price of $9.39, then relinquished part of the shares to satisfy tax obligations. The resulting 1,031-share net addition (≈0.2% of his holding) is modest, yet any increase—rather than a net sale—can be viewed as a confidence indicator. Because the transaction is small relative to the company’s ~46 M share float and does not involve executives with operational control, I assess the impact as neutral to slightly positive for investors.

Insider Trade Summary

4,744 shares exercised/converted

Exercise 3 txns

Insider Prouty Eric A

Role Director

Type	Security	Shares	Price	Value
Exercise	Stock Options	4,744	$0.00	$0.00
Exercise	Common Stock	4,744	$7.35	$35K
Exercise Price or Tax Liability	Common Stock	3,713	$9.39	$35K

Holdings After Transaction: Stock Options — 0 contracts (Direct); Common Stock — 148,852 shares (Direct)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many Hudson Technologies shares did Director Prouty acquire?

He exercised options for 4,744 shares of common stock.

What was the exercise price of the options?

The options were exercised at $7.35 per share.

Did the director sell any shares in the same filing?

Yes, 3,713 shares were disposed of at $9.39, likely for tax withholding (code F).

What is Prouty’s total ownership after the transactions?

He directly owns 148,852 HDSN shares following the reported trades.

Are there any remaining derivative securities from this option grant?

No, the filing shows 0 derivative securities remaining from the exercised option block.

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

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Accepted by SEC EDGAR 08/01/2025 - 09:42 AM Learn about SEC filing dates

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^*

Prouty Eric A

(Last) (First) (Middle)

C/O HUDSON TECHNOLOGIES, INC.

300 TICE BOULEVARD, SUITE 290

(Street)

WOODCLIFF LAKE NJ 07677

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
07/31/2025

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

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

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

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	07/31/2025		M		4,744	A	$7.35	152,565	D
Common Stock	07/31/2025		F		3,713	D	$9.39	148,852	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
Stock Options	$7.35	07/31/2025		M			4,744	09/30/2022	09/30/2025	Common Stock	4,744	$0	0	D

Explanation of Responses:

	/s/ Eric A. Prouty	08/01/2025
	** 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.