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Treasury Stock and Share-Based Awards (Tables) | 9 Months Ended
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Sep. 30, 2025
Summary of Treasury Stock Activity | Below is a summary of Holdings’ treasury stock activity for the nine months ended September 30, 2025:
|  | Number of |  |  |  |
|  | Treasury |  |  |  |
|  | Shares |  |  | Cost |
Balance at January 1, 2025 |  |  | 6.38 |  |  | $ | 103.2 |
Repurchases of common stock (1) |  |  | 7.93 |  |  |  | 201.6 |
Receipt of shares related to maturity of hedge transactions (2) |  |  | 16.23 |  |  |  | 142.1 |
Adjustment to excise tax accrual related to repurchases of common stock (1) |  |  | — |  |  |  | (0.4 | )
Restricted stock withholdings (3) |  |  | 0.61 |  |  |  | 17.6 |
Restricted stock forfeitures (4) |  |  | 0.06 |  |  |  | — |
Balance at September 30, 2025 |  |  | 31.21 |  |  | $ | 464.1 |
(1) Holdings repurchased outstanding common shares under a share repurchase program. See Share Repurchase Program below. (2) Holdings received common shares upon maturity of hedges. See Note 5 and Note 7 for further information on the hedge transactions. (3) Holdings withheld shares as a result of the election by certain employees to satisfy their tax liabilities upon vesting of restricted stock and performance stock units with shares. Holdings determined the number of shares to be withheld based upon market values of Holdings’ common stock on the vesting dates, which ranged from $24.38 to $33.06 per share. (4) Holdings repurchased forfeited restricted shares at a cost of $0.001 per share in accordance with its Long-Term Incentive Plan.
Summary of Restricted Stock Activity | Below is a summary of restricted stock activity for the nine months ended September 30, 2025:
|  | Shares of |  |  | Weighted Average |
|  | Restricted |  |  | Grant Date |
|  | Stock |  |  | Fair Value |
Outstanding at January 1, 2025 |  |  | 2.30 |  |  | $ | 15.91 |
Granted |  |  | 0.59 |  |  |  | 27.71 |
Vested |  |  | (1.31 | ) |  |  | 16.65 |
Forfeited |  |  | (0.05 | ) |  |  | 17.14 |
Outstanding and unvested at September 30, 2025 |  |  | 1.53 |  |  | $ | 19.82 |
Performance metrics and measurement period for these performance awards | Below is a summary of the performance stock units at each specified performance achievement level for these performance awards:
Stock units that vest if performance metrics meet the threshold level (50% of target) |  | 0.18 PSUs
Stock units that vest if performance metrics meet the target level |  | 0.35 PSUs
Stock units that vest if performance metrics meet the maximum level (200% of target) |  | 0.71 PSUs
CUSA |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | Below is a summary of restricted stock award activity recorded for the periods indicated.
|  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |
Compensation expense recognized during the period: |  |  |  |  |  |
CUSA employees (1) |  | $ | 11.6 |  |  | $ | 12.3 |
Holdings directors |  |  | 1.0 |  |  |  | 1.0 |
Total recognized by Holdings |  | $ | 12.6 |  |  | $ | 13.3 |
Fair value of restricted stock that vested during the period: |  |  |  |  |  |
CUSA employees |  | $ | 36.8 |  |  | $ | 13.4 |
Holdings directors |  |  | 2.4 |  |  |  | 1.4 |
Holdings total |  | $ | 39.2 |  |  | $ | 14.8 |
Income tax benefit related to vested restricted stock: |  |  |  |  |  |
CUSA employees |  | $ | 6.5 |  |  | $ | 1.8 |
Holdings directors |  |  | 0.5 |  |  |  | 0.3 |
Holdings total income tax benefit |  | $ | 7.0 |  |  | $ | 2.1 |
(1) Compensation expense for the nine months ended September 30, 2025 and 2024 includes approximately $0.9 and $0.6, respectively, related to a portion of the short-term field incentive compensation plan for 2025 and 2024, respectively, to be settled in restricted stock.
Restricted Stock (Member) |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | As of September 30, 2025, the estimated remaining unrecognized compensation expense related to unvested restricted stock awards was as follows:
|  | Estimated |
|  | Remaining |
|  | Expense |
CUSA employees (1) |  | $ | 18.6 |
Holdings directors |  |  | 0.9 |
Total remaining - Holdings (1) |  | $ | 19.5 |
(1) The weighted average period over which this remaining compensation expense will be recognized by both Holdings and CUSA is approximately 1.3 years.
Performance Shares [Member] |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | Below is a summary of all performance stock unit activity for the periods presented:
|  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |
Number of performance stock units that vested during the period |  |  | 0.8 |  |  |  | 0.1 |
Fair value of performance stock units that vested during the period |  | $ | 20.6 |  |  | $ | 2.1 |
Accumulated dividends paid upon vesting of performance stock units |  | $ | — |  |  | $ | 0.1 |
Compensation expense recognized during the period (1) |  | $ | 12.5 |  |  | $ | 10.8 |
Income tax benefit (expense) related to performance stock units |  | $ | 2.5 |  |  | $ | (1.2 | )
(1) Compensation expense for the nine months ended September 30, 2025 includes approximately $2.4 related to a change in the most likely performance metrics outcome estimated to be achieved for the 2024 grants. Compensation expense for the nine months ended September 30, 2024 includes approximately $2.8 related to a change in the most likely performance metrics outcome estimated to be achieved for the 2023 and 2024 grants.

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