MARK S. PARKER - 18 Aug 2025 Form 4 Insider Report for HYDROFARM HOLDINGS GROUP, INC. (HYFM)

Role
President
Signature
/s/ Mark Parker
Issuer symbol
HYFM
Transactions as of
18 Aug 2025
Net transactions value
-$1,669
Form type
4
Filing time
20 Aug 2025, 16:02:50 UTC
Previous filing
13 Aug 2025
Next filing
08 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
PARKER MARK S President 1510 MAIN STREET, SHOEMAKERSVILLE /s/ Mark Parker 19 Aug 2025 0001915363

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction HYFM Common Stock, $0.0001 par value per share Tax liability $1,669 -370 -1.7% $4.51 21,000 18 Aug 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld to satisfy tax withholding obligation applicable to the vesting of 834 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.