HYFM President Mark S. Parker Withholds 740 Shares for Taxes

What Happened
Mark S. Parker, President of Hydrofarm Holdings Group, Inc. (HYFM), had 740 shares of common stock withheld on August 8, 2026 to satisfy tax withholding obligations. The withholding was recorded at $1.60 per share, totaling $1,184. This was not an open-market sale but a tax-withholding disposition tied to the vesting of restricted stock units (RSUs).

Key Details

• Transaction date: 2026-08-08; Filing date (Form 4): 2026-08-11. Form 4s are generally due within two business days of the transaction.
• Price reported: $1.60 per share.
• Shares withheld/disposed: 740 shares; value of withheld shares: $1,184.
• Footnote: The withholding satisfied taxes on the vesting of 1,667 stock-settled RSUs (settled 1-for-1 in shares); fractional amounts were rounded.
• Shares owned after the transaction: not specified in the filing.

Context
This was a routine tax-withholding event tied to RSU vesting (1,667 RSUs vested). Based on the numbers in the filing, 740 shares were withheld for taxes and the remaining 927 shares (1,667 − 740) were likely delivered to the insider. Because shares were withheld to cover withholding taxes rather than sold on the open market, this is a common administrative transaction and not necessarily a signal of the insider’s market view.