Stock-Based Compensation
We grant stock-based compensation awards, including restricted stock units, phantom stock, and unrestricted stock units, under the Second Amended and Restated 2010 Stock Incentive Plan (Stock Incentive Plan). Prior to December 31, 2020, stock options were also granted as part of the stock-based compensation awards. In the Stock Incentive Plan, we have 13,991,273 shares of common stock authorized for issuance subject to stock splits, dividends, and other similar events, and at December 31, 2025, 3,808,654 shares were available for grant. We issue new shares of common stock upon the exercise of stock options or when vesting conditions on restricted stock units are fully satisfied. These shares are subject to a fungible share provision such that the authorized share available for grant under the Plan is reduced by (i) one share for every one share subject to a stock option or share appreciation right granted and (ii) 1.7 shares for every one share of common stock that was subject to an award other than an option or share appreciation right.
We also award phantom stock units, which are settled in cash upon vesting and accounted for as liability-based awards, with no impact to the shares available for grant.

In addition, we maintain the ESPP, for which 441,813 shares of common stock were available for future issuance at December 31, 2025.

ESPP activity and stock-based grants other than restricted stock units were not significant for the years ended December 31, 2025, 2024, and 2023.

Stock-Based Compensation Expense
Total stock-based compensation expense and the related tax benefit were as follows:
Year Ended December 31,
In thousands202520242023
Stock options$— $— $103 
Restricted stock units61,520 42,531 27,189 
Unrestricted stock awards929 1,343 1,065 
Phantom stock units3,925 5,923 5,025 
Total stock-based compensation$66,374 $49,797 $33,382 
Related tax benefit$15,144 $10,802 $6,928 

Stock Options
A summary of our stock option activity is as follows:
SharesWeighted Average Exercise Price per ShareWeighted Average Remaining Contractual LifeAggregate Intrinsic ValueWeighted Average Grant Date Fair Value
In thousandsYearsIn thousands
Outstanding, January 1, 2023381 $60.63 4.8$1,892 
Granted— — $— 
Exercised(18)45.96 397 
Forfeited— — 
Canceled
— — 
Outstanding, December 31, 2023363 $61.36 4.0$5,886 
Granted— — $— 
Exercised(89)51.45 4,450 
Forfeited— — 
Canceled
— — 
Outstanding, December 31, 2024274 $64.55 3.2$12,087 
Granted— — $— 
Exercised(87)39.95 6,461 
Forfeited
— — 
Canceled
— — 
Outstanding and Exercisable, December 31, 2025
187 $75.89 3.1$3,188 

At December 31, 2025, all stock-based compensation expense related to nonvested stock options has been recognized.
Restricted Stock Units
The following table summarizes restricted stock unit activity:
Number of Restricted Stock UnitsWeighted Average Grant Date Fair ValueAggregate Intrinsic Value
In thousandsIn thousands
Outstanding, January 1, 2023528 $66.39 
Granted497 56.89 
Released (1)
(242)$13,974 
Forfeited(32)
Outstanding, December 31, 2023751 $58.89 
Granted552 76.34 
Released (1)
(446)$38,260 
Forfeited(26)
Outstanding, December 31, 2024831 $67.71 
Granted608 98.35 
Released (1)
(611)66.17 $61,617 
Forfeited(38)84.66 
Outstanding, December 31, 2025790 $88.51 
Vested but not released, December 31, 202517 $92.86 $1,618 

(1) Shares released is presented as gross shares and does not reflect shares withheld by us for employee payroll tax obligations.

At December 31, 2025, total unrecognized compensation expense on restricted stock units was $35.6 million, which is expected to be recognized over a weighted average period of approximately 1.6 years.

The weighted average assumptions used to estimate the fair value of performance-based restricted stock units granted with a service and market condition and the resulting weighted average fair value are as follows:
Year Ended December 31,
202520242023
Expected volatility39.7 %40.3 %46.0 %
Risk-free interest rate3.8 %4.3 %4.6 %
Expected term (years)2.02.01.9
Weighted average fair value$105.82 $115.69 $73.41 
Phantom Stock Units
The following table summarizes phantom stock unit activity:
Number of Phantom Stock UnitsWeighted
Average Grant
Date Fair Value
Aggregate Intrinsic Value
In thousandsIn thousands
Outstanding, January 1, 202385 $66.46 
Granted77 56.52 
Released(43)$2,511 
Forfeited(4)
Outstanding, December 31, 2023115 $58.58 
Granted57 77.38 
Released(63)$5,420 
Forfeited(18)
Outstanding, December 31, 202491 $68.63 
Granted41 98.56 
Released(61)67.16 $6,201 
Forfeited(7)77.72 
Outstanding, December 31, 202564 $88.36 

At December 31, 2025, total unrecognized compensation expense on phantom stock units was $3.5 million, which is expected to be recognized over a weighted average period of approximately 1.6 years. As of December 31, 2025 and 2024, we have recognized a phantom stock liability of $2.5 million and $4.8 million within wages and benefits payable in the Consolidated Balance Sheets.

About Stock Compensation Disclosures

Stock-based compensation disclosures detail the equity awards granted to employees and executives — including stock options, restricted stock units (RSUs), and performance shares — along with the valuation methods and assumptions used to expense them. This section reveals the true cost of talent retention and the alignment between management incentives and shareholder interests.

Key signals: total unrecognized compensation expense and its expected recognition period signal future earnings headwinds from already-granted awards. For stock options, examine Black-Scholes assumptions — expected volatility, risk-free rate, and expected term — as understating any of these reduces reported compensation expense. Compare stock compensation expense as a percentage of revenue against peers to assess dilution cost. Watch vesting schedules for acceleration clauses tied to change-of-control events. Performance-based awards with undemanding targets may indicate weak governance. Add back stock compensation to operating cash flow to calculate a more conservative free cash flow figure.