| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ROCK | Common Stock | Tax liability | $11,368 | -173 | -0.92% | $65.71 | 18,626 | 06 Mar 2025 | Direct | F1 |
| holding | ROCK | Common Stock (401k) | 334 | 06 Mar 2025 | 401k |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | ROCK | Restricted Stock Unit (2018 MSPP Match) | 1,075 | 06 Mar 2025 | Common Stock | 1,075 | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld to cover the tax withholding obligation related to the vesting on March 1, 2025 of the Reporting Person's Restricted Stock Units and Performance Stock Units, in addition to the shares originally withheld on March 1, 2025, as reported in the Form 4 filed by the Reporting Person on March 3, 2025. |
| F2 | Represents matching restricted stock units allocated to the Reporting Person with respect to the Reporting Person's deferral of a portion of their annual base salary and annual cash incentive compensation pursuant to the Company's 2018 Management Stock Purchase Plan. |
| F3 | Restricted stock units are forfeited if Reporting Person's service as an officer of the Company is terminated prior to the fifth (5th) anniversary of the Reporting Person's vesting commencement date. If service as an officer continues beyond the fifth (5th) anniversary of the Reporting Person's vesting commencement date, restricted stock units are payable solely in cash in one lump sum payment or in five (5) or ten (10) consecutive, substantially equal annual installments, whichever distribution form is elected by the Reporting Person, beginning six (6) months following termination of service. Each restricted stock unit is converted to cash in an amount equal to the fair market value of one share of the Company's common stock, as defined in the Company's 2018 Management Stock Purchase Plan, on the date of termination of the Reporting Person's service as an officer of the Company. |