WLK tangible book value per share history

Annual fiscal periods. Dates are reporting period ends; fiscal years can differ from calendar years.

Westlake Corporation Common Stock Tangible Book Value Per Share — Annual fiscal periods
Period ending	Tangible Book Value Per Share
Dec 31, 2025	52.7422
Dec 31, 2024	60.1393
Dec 31, 2023	57.2742
Dec 31, 2022	52.6606
Dec 31, 2021	38.4679
Dec 31, 2020	38.193
Dec 31, 2019	35.9749
Dec 31, 2018	34.1185
Dec 31, 2017	27.7332
Dec 31, 2016	16.6814
Dec 31, 2015	25.4016
Dec 31, 2014	22.4133
Dec 31, 2013	16.9606
Dec 31, 2012	13.7576
Dec 31, 2011	12.9479
Dec 31, 2010	11.0959
Dec 31, 2009	9.3185
Dec 31, 2008	8.9748
Dec 31, 2007	9.3661
Dec 31, 2006	8.4324
Dec 31, 2005	7.646
Dec 31, 2004	6.9653
Dec 31, 2003	4.7243
Dec 31, 2002	4.5518
Dec 31, 2001	0
Dec 31, 2000	13.8855
Dec 31, 1999	13.5846