| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lanuto Frank P | EVP, Finance | C/O STAGWELL INC., ONE WORLD TRADE CENTER, FLOOR 65, NEW YORK | /s/ Frank Lanuto | 10 Mar 2026 | 0001443237 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STGW | Class A Common Stock | Tax liability | -16,208 | -3% | $5.24* | 520,322 | 07 Mar 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock units. |