Altair Corp. / Dividends

Declaration date	Ex date	Record date	Payment date	Amount
December 31, 2013	December 19, 2013	December 20, 2013		$19.98
December 10, 2014	December 11, 2014	December 12, 2014	December 22, 2014	$29.96
December 9, 2015	December 11, 2015	December 12, 2015	December 22, 2015	$39.95
December 7, 2016	December 9, 2016	December 10, 2016	December 20, 2016	$60.13
December 1, 2017	December 1, 2017	December 4, 2017	December 20, 2017	$60.14
December 3, 2018	December 3, 2018	December 4, 2018	December 20, 2018	$60.14
December 3, 2019	December 3, 2019	December 4, 2019	December 20, 2019	$60.14
November 13, 2020	November 13, 2020	November 16, 2020	December 18, 2020	$60.06
November 22, 2021	November 22, 2021	November 23, 2021	December 22, 2021	$60.17
November 17, 2022	November 17, 2022	November 18, 2022	December 22, 2022	$60.16
November 20, 2023	November 20, 2023	November 21, 2023	December 26, 2023	$60.14
November 25, 2024	November 22, 2024	November 25, 2024	December 23, 2024	$48.10