Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS??? EQUITY

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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($)
$ in Thousands
Total
Common stock
Additional paid-in capital
(Accumulated deficit)
Treasury stock, at cost 
Accumulated other comprehensive income
Beginning balance at Dec. 31, 2021 $ 740,737 $ 1,378 $ 1,073,409 $ (315,707) $ (12,551) $ (5,792)
Increase (Decrease) in Stockholders' Equity            
Net (loss) income attributable to Ecovyst Inc. 7,875     7,875    
Other comprehensive income (loss) 11,378         11,378
Tax withholdings on equity award vesting (332)       (332)  
Stock compensation expense 5,946   5,946      
Shares issued under equity incentive plan, net of forfeitures 27 18 9      
Ending balance at Mar. 31, 2022 765,631 1,396 1,079,364 (307,832) (12,883) 5,586
Beginning balance at Dec. 31, 2022 707,229 1,396 1,091,475 (242,010) (149,624) 5,992
Increase (Decrease) in Stockholders' Equity            
Net (loss) income attributable to Ecovyst Inc. (1,471)     (1,471)    
Other comprehensive income (loss) (5,759)         (5,759)
Repurchases of common shares (29,850)       (29,850)  
Tax withholdings on equity award vesting (866)       (866)  
Stock compensation expense 4,756   4,756      
Shares issued under equity incentive plan, net of forfeitures 112 10 102      
Ending balance at Mar. 31, 2023 $ 674,151 $ 1,406 $ 1,096,333 $ (243,481) $ (180,340) $ 233