Day David 4
4 · MAGNITE, INC. · Filed May 19, 2026
Research Summary
AI-generated summary of this filing
MAGNITE (MGNI) CFO David Day Forfeits 14,170 Shares for Taxes
What Happened
- David Day, Chief Financial Officer of MAGNITE, reported a disposition on 2026-05-15 in which 14,170 shares were withheld (disposed) at $12.82 per share, for a total value of approximately $181,659. This was a non‑discretionary share forfeiture to satisfy tax withholding on vested restricted stock units (RSUs), not an open‑market sale or purchase.
Key Details
- Transaction date and price: May 15, 2026 — 14,170 shares withheld at $12.82/share (total ≈ $181,659).
- Shares owned after transaction: Not specified in the provided filing.
- Footnote: The filing notes the forfeiture was non‑discretionary and required by the issuer to cover tax withholding on RSU vesting.
- Filing timeliness: Report filed 2026-05-19 (timely within the two business‑day Form 4 window for a 2026-05-15 transaction).
Context
- This is a routine tax‑withholding event related to vesting RSUs. Such withholdings are administrative and do not necessarily indicate the insider’s market view. Code "F" denotes tax withholding/forfeiture rather than a voluntary sale.
Insider Transaction Report
Form 4
MAGNITE, INC.MGNI
Day David
CHIEF FINANCIAL OFFICER
Transactions
- Tax Payment
Common Stock
[F1]2026-05-15$12.82/sh−14,170$181,659→ 493,289 total
Footnotes (1)
- [F1]Represents the non-discretionary forfeiture of shares on behalf of the Reporting Person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units.
Signature
/s/ Aaron Saltz, attorney-in-fact|2026-05-19