NY (HDSN)

Reporting relationship: Former Director
Issuer ticker: HDSN
Reported as of: 05 Dec 2025
Net transaction value: -$3,588,097
SEC form: 4/A - Amendment
Accepted by SEC: 15 Dec 2025, 16:48:11 UTC
Original report date: 09 Dec 2025
Prior SEC filing: 17 Mar 2025
Source filing: View source filing
Reporting owner signature: /s/ Brian F. Coleman

Key filing fact

Brian F. Coleman filed Form 4/A - Amendment for HUDSON TECHNOLOGIES INC /NY (HDSN) on 15 Dec 2025.

Key facts

This page summarizes Brian F. Coleman's Form 4/A - Amendment filing for HUDSON TECHNOLOGIES INC /NY (HDSN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 Dec 2025, 16:48.

Change

Previous filing in this sequence was filed on 17 Mar 2025.
Current net transaction value: -$3,588,097.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001250706 Primary reporting owner

COLEMAN BRIAN F

Relationship: Former Director
Address: Not listed
Signature: /s/ Brian F. Coleman
Signature date: 15 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HDSN transaction

Common Stock

Sale

Transaction value: $3,588,097
Shares: -484,616
Change %: -53%
Price: $7.40
Shares after: 426,968
Date: 05 Dec 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Brian F. Coleman is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 1 footnote

Footnote F1

Beneficial ownership following reported transaction should have been reported as 426,968, not 1,944,312.

SEC remarks

This Form 4A is only to correct the reported amount to direct ownership of Common Stock of the Issuer following the reported transaction on December 5, 2025, which should have been 426,968, not 1,944,312.