Magnite (MGNI) CFO David Day Forfeits 14,170 Shares for Taxes

What Happened David Day, Chief Financial Officer of Magnite, reported the non‑discretionary forfeiture of 14,170 shares on August 15, 2026. The shares were disposed at an effective price of $24.73 per share, resulting in a withholding value of $350,424. This transaction reflects tax withholding related to the vesting of restricted stock units (RSUs), not an open‑market sale for cash.

Key Details

• Transaction date: 2026-08-15; Filing date: 2026-08-18.
• Shares forfeited/disposed: 14,170 at $24.73 per share; total value ≈ $350,424.
• Footnote: F1 — represents a non‑discretionary forfeiture of shares to cover tax withholding obligations associated with RSU vesting.
• Shares owned after the transaction: not specified in the provided filing excerpt.
• Filing timeliness: filed three days after the reported transaction date (filed Aug 18 for an Aug 15 transaction); the filing does not indicate a corrective or late-report flag in the excerpt provided.

Context This was a routine tax‑withholding disposition tied to RSU vesting (a cashless-type settlement), which is common when shares vest and taxes are withheld by surrendering or selling a portion of the award. Such forfeitures are administrative and do not necessarily reflect the insider’s view of the company’s prospects.