v3.26.1
Stock Plans (Tables)
 3 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Compensation Expense
Stock compensation expense, included in Selling, general and administrative expense in the unaudited Condensed Consolidated Statements of Income, is as follows:
 Three Months Ended March 31,
(In thousands)20262025
Stock compensation expense$3,812 $2,629 
Income tax benefit911 649 
Stock compensation expense, net of tax$2,901 $1,980 
We have not capitalized any stock-based compensation expense.
Summary of Stock Option Activity
A summary of stock option activity for the three months ended March 31, 2026, is as follows:
SharesWeighted Average
Exercise Price
Outstanding at January 1, 20262,217 $48.30 
Exercised(500)44.50 
Outstanding and exercisable at March 31, 20261,717 $49.41 
Summary of Restricted Stock and Unit Activity A summary of restricted stock activity for the three months ended March 31, 2026, is as follows:
SharesWeighted Average
Grant Date
Fair Value
Unvested at January 1, 2026168,387 $159.38 
Granted51,321 193.05 
Vested(39,371)134.35 
Forfeited(6,812)178.61 
Unvested at March 31, 2026173,525 $174.27 
Schedule of Fair Value Assumptions for Units The following weighted average assumptions were used in estimating the fair value of the performance stock units granted in the first quarter of 2026:
Fair value per unit$223.21
Risk-free interest rate3.52%
Expected dividend yield1.27%
Expected volatility23.2%
MSA stock beta0.725
Summary of Performance Stock Unit Activity
A summary of performance stock unit activity for the three months ended March 31, 2026, is as follows:
SharesWeighted Average
Grant Date
Fair Value
Unvested at January 1, 2026151,552 $153.00 
Granted51,565 222.96 
Performance adjustments(a)
49,804 131.46 
Vested(111,975)131.46 
Forfeited(7,332)185.19 
Unvested at March 31, 2026133,614 $188.25 
(a)Performance adjustments relate primarily to the final number of shares issued for the 2023 performance unit awards which vested in the first quarter of 2026 at 180% of the target award based on both cumulative performance against EBITDA margin and revenue growth targets and MSA's total shareholder return during the three-year performance period.