BIIB stock repurchases history

Trailing twelve months (TTM) · USD. Each value covers four complete reported quarters.

Biogen Stock Repurchases — Trailing twelve months (TTM) (USD)
Period ending	Stock Repurchases (USD)
Jun 30, 2026	0
Mar 31, 2026	0
Dec 31, 2025	0
Sep 30, 2025	0
Jun 30, 2025	0
Mar 31, 2025	0
Dec 31, 2024	0
Sep 30, 2024	0
Jun 30, 2024	0
Mar 31, 2024	0
Dec 31, 2023	0
Sep 30, 2023	0
Jun 30, 2023	-250,000,000
Mar 31, 2023	-750,000,000
Dec 31, 2022	-750,000,000
Sep 30, 2022	-750,000,000
Jun 30, 2022	-1,250,000,000
Mar 31, 2022	-1,200,000,000
Dec 31, 2021	-1,800,000,000
Sep 30, 2021	-2,200,000,000
Jun 30, 2021	-2,700,000,000
Mar 31, 2021	-5,058,900,000
Dec 31, 2020	-6,679,100,000
Sep 30, 2020	-8,372,200,000
Jun 30, 2020	-7,840,100,000
Mar 31, 2020	-7,432,700,000
Dec 31, 2019	-5,868,300,000
Sep 30, 2019	-5,127,800,000
Jun 30, 2019	-4,409,900,000
Mar 31, 2019	-4,758,400,000
Dec 31, 2018	-4,352,600,000
Sep 30, 2018	-3,000,000,000
Jun 30, 2018	-3,000,000,000
Mar 31, 2018	-1,031,800,000
Dec 31, 2017	-1,365,400,000
Sep 30, 2017	-2,016,500,000
Jun 30, 2017	-2,365,400,000
Mar 31, 2017	-1,583,600,000
Dec 31, 2016	-1,000,000,000
Sep 30, 2016	-2,350,710,000
Jun 30, 2016	-4,957,810,000
Mar 31, 2016	-5,000,010,000
Dec 31, 2015	-5,000,010,000
Sep 30, 2015	-3,525,019,000
Jun 30, 2015	-592,095,000
Mar 31, 2015	-886,800,000
Dec 31, 2014	-886,800,000
Sep 30, 2014	-359,982,000
Jun 30, 2014	-696,191,000
Mar 31, 2014	-359,286,000
Dec 31, 2013	-400,309,000
Sep 30, 2013	-421,852,000
Jun 30, 2013	-115,787,000
Mar 31, 2013	-562,567,000
Dec 31, 2012	-984,715,000
Sep 30, 2012	-1,074,571,000
Jun 30, 2012	-1,021,351,000
Mar 31, 2012	-765,859,000
Dec 31, 2011	-497,975,000
Sep 30, 2011	1,691,004,000
Jun 30, 2011	1,222,759,000
Mar 31, 2011	382,293,000
Dec 31, 2010	0
Sep 30, 2010	-2,771,118,000
Jun 30, 2010	-2,294,073,000
Mar 31, 2010	-1,255,019,000
Dec 31, 2009	-735,070,000
Sep 30, 2009	-220,702,000
Jun 30, 2009	-229,502,000
Mar 31, 2009	-556,350,000
Dec 31, 2008	-738,938,000
Sep 30, 2008	-559,768,000
Jun 30, 2008	-3,550,951,000
Mar 31, 2008	-3,231,403,000
Dec 31, 2007	-2,991,184,000
Sep 30, 2007	-2,670,915,000
Jun 30, 2007	366,000
Mar 31, 2007	0
Dec 31, 2006	0
Sep 30, 2006	2,322,000
Jun 30, 2006	322,224,000
Mar 31, 2006	168,475,000
Dec 31, 2005	0
Sep 30, 2005	-358,627,000
Jun 30, 2005	-713,348,000
Mar 31, 2005	-902,902,000
Dec 31, 2004	-734,427,000
Sep 30, 2004	-652,605,000
Jun 30, 2004	-297,884,000
Mar 31, 2004	45,785,000
Dec 31, 2003	0
Sep 30, 2003	-37,401,000
Jun 30, 2003	-37,401,000
Mar 31, 2003	-37,401,000
Dec 31, 2002	0
Sep 30, 2002	-33,537,000
Jun 30, 2002	-75,225,000
Mar 31, 2002	-91,621,000
Dec 31, 2001	-88,284,000
Sep 30, 2001	-82,917,000