| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wanninger Kurt | EVP & Chief Operations Officer | 3300 ENTERPRISE PARKWAY, SUITE 300, BEACHWOOD | /s/ Andrean R. Horton, attorney-in-fact for Kurt Wanninger | 18 Mar 2026 | 0001591630 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MBC | Common Stock, par value $0.01 per share | Award | +39,442 | +19% | $0.000000* | 251,199 | 16 Mar 2026 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents shares of restricted stock units ("RSUs") granted to the reporting person. Each RSU represents a contingent right to receive one share of common stock of MasterBrand, Inc. The RSUs vest in equal one-third increments over three years beginning on February 28, 2027. |
| F2 | Includes 56,645 RSUs that have not yet vested, 676 shares held in the issuer's 401(k) plan, and 40,348 shares, the receipt of which has been deferred under the issuer's deferred compensation plan. |