Kevin Patrick O'Brien - 06 Jan 2026 Form 4 Insider Report for HYDROFARM HOLDINGS GROUP, INC. (HYFM)

Reporting relationship: Chief Financial Officer
Issuer ticker: HYFM
Reported as of: 06 Jan 2026
Net transaction value: -$1,736
SEC form: 4
Accepted by SEC: 08 Jan 2026, 16:09:40 UTC
Prior SEC filing: 20 Aug 2025
Source filing: View source filing
Reporting owner signature: /s/ Kevin Patrick O'Brien

Key filing fact

Kevin Patrick O'Brien filed Form 4 for HYDROFARM HOLDINGS GROUP, INC. (HYFM) on 08 Jan 2026.

Key facts

This page summarizes Kevin Patrick O'Brien's Form 4 filing for HYDROFARM HOLDINGS GROUP, INC. (HYFM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 08 Jan 2026, 16:09.

Change

Previous filing in this sequence was filed on 20 Aug 2025.
Current net transaction value: -$1,736.

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 disclosures.

View source filing

Reporting Owners (1)

CIK 0001735272 Primary reporting owner

O'Brien Kevin Patrick

Relationship: Chief Financial Officer
Address: 1510 MAIN STREET, SHOEMAKERSVILLE
Signature: /s/ Kevin Patrick O'Brien
Signature date: 08 Jan 2026

Reported non-derivative transactions

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

HYFM transaction

Common Stock, $0.0001 par value per share

Sale

Transaction value: $1,736
Shares: -1,150
Change %: -8%
Price: $1.51
Shares after: 13,222
Date: 06 Jan 2026
Ownership: Direct
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Shares withheld to satisfy tax withholding obligation applicable to the vesting of 3,333 stock-settled restricted stock units, which may be settled, on a 1-for-1 basis, only in shares of common stock. Fractional amounts have been rounded to the nearest whole number