| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Koefoed William A | Chief Financial Officer | C/O ONESTREAM, INC., 191 N. CHESTER STREET, BIRMINGHAM | /s/ Holly Koczot, attorney-in-fact | 12 Jun 2025 | 0001642337 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OS | Class A Common Stock | Sale | -$184K | -6.5K | -2.56% | $28.23 | 247K | 11 Jun 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plan to require the satisfaction of statutory tax withholding obligations in connection with the vesting of restricted stock units to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the Reporting Person. |
| F2 | The shares reported include unvested restricted stock units. |