IDCC tangible book value per share history

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

Interdigital Inc Tangible Book Value Per Share — Annual fiscal periods
Period ending	Tangible Book Value Per Share
Dec 31, 2025	29.3979
Dec 31, 2024	20.7765
Dec 31, 2023	9.1633
Dec 31, 2022	11.7615
Dec 31, 2021	11.9266
Dec 31, 2020	11.561
Dec 31, 2019	10.3823
Dec 31, 2018	13.3136
Dec 31, 2017	15.3064
Dec 31, 2016	12.3133
Dec 31, 2015	6.7775
Dec 31, 2014	5.3307
Dec 31, 2013	7.9642
Dec 31, 2012	7.9208
Dec 31, 2011	7.3489
Dec 31, 2010	5.0542
Dec 31, 2009	1.1633
Dec 31, 2008	-0.8431
Dec 31, 2007	1.0462
Dec 31, 2006	3.8367
Dec 31, 2005	2.1236
Dec 31, 2004	1.3515
Dec 31, 2003	1.1803
Dec 31, 2002	1.2037
Dec 31, 2001	0.9157
Dec 31, 2000	1.2072
Dec 31, 1999	2.0635
Dec 31, 1998	1.3621
Dec 31, 1997	0.6062
Dec 31, 1996	1.3495
Dec 31, 1995	1.3741
Dec 31, 1994	0.3589
Dec 31, 1993	0.1427
Dec 31, 1992	0.3651
Dec 31, 1991	-0.39
Dec 31, 1990	-0.294
Dec 31, 1989	0.0423
Dec 31, 1988	0.2331
Dec 31, 1987	1.7966
Dec 31, 1986	0.7852
Dec 31, 1985	0.3889