Young Mark A. 4

What Happened

• Mark A. Young, Vice President and Chief Accounting Officer of MasterBrand, Inc. (MBC), was granted 11,669 restricted stock units (RSUs) on June 3, 2026. The grant is reported at $0.00 acquisition price on the Form 4 because RSUs are awards (not an open-market purchase). Each RSU is a contingent right to one share of MasterBrand common stock; no shares were sold or bought in the market.

Key Details

• Transaction date: 2026-06-03; Form 4 filed: 2026-06-05 (filed within the normal two-business-day window).
• Grant: 11,669 RSUs reported as acquired at $0.00.
• Vesting: RSUs vest in equal one‑third increments over three years, beginning June 3, 2027 (Footnote F1).
• Holdings note: Footnote F2 indicates 49,238 RSUs are included that have not yet vested (as reported in the filing excerpt).
• Shares owned after transaction: Not specified in the provided excerpt.
• This was an award/grant (code A) — a compensation award, not a market purchase or sale.

Context

• RSU grants are common executive compensation and do not necessarily signal immediate buying or selling intent. Vesting delays mean the value is realized over future periods if the executive remains employed and vesting conditions are met.