Pietrandrea Brian P. 4

What Happened

• Brian P. Pietrandrea, Chief Accounting Officer of INFINITY NATURAL RESOURCES, had 3,362 restricted stock units (RSUs) vest on March 17, 2026. The vested RSUs converted into 3,362 shares of Class A common stock.
• To satisfy tax withholding on the vesting, 934 shares were withheld/disposed at $18.15 per share, generating a withholding amount of $16,952. Net shares delivered to Pietrandrea after withholding were 2,428 shares.
• These transactions are recorded as conversion/exercise of a derivative (RSU settlement) and tax-withholding disposition; this is a routine compensation-related transaction, not an open-market purchase.

Key Details

• Transaction date: March 17, 2026; Form 4 filed March 19, 2026 (appears timely).
• Vesting/Conversion: 3,362 RSUs converted to 3,362 shares (transaction code M).
• Tax withholding: 934 shares withheld/disposed at $18.15 per share for $16,952 (transaction code F).
• Net shares received: 2,428 shares (3,362 vested − 934 withheld).
• Footnotes: Each RSU equals one share; the RSUs were part of a 10,086-RSU grant on July 16, 2025 that vests in three equal installments on March 17 of 2026, 2027, and 2028. Withholding was to satisfy taxes on the vested RSUs.
• Shares owned after transaction: not specified in the provided Form 4 disclosure.

Context

• This was an RSU vesting and tax-withholding event (not a market sale). Withholding of shares to satisfy taxes is common and does not necessarily indicate a change in the insider’s view of the company.
• For retail investors, purchases are typically more informative about insider sentiment; this filing documents routine compensation settlement rather than a discretionary buy or sell.