BIIB · Biogen Inc.

$209.83 -0.82 (-0.39%) At close · Aug 14

Market Cap

$30.98B

147.64M

Share-repurchase activity from the company's own XBRL filings — cash spent buying back common stock per fiscal year and per recent quarter, share counts where the company tagged them, and the buyback program's authorization — paired with the company's at-the-market (ATM) equity offering programs, the dilution side of the same picture. Repurchase amounts come exclusively from tagged SEC data; program figures with no tagged equivalent (untagged authorizations and all ATM figures) are read from the filing's own text and shown only after verification.

Program Authorized

$5,000,000,000

as of 2026-04-29 · from 10-Q (reviewed)

Program Announced	Authorized	Remaining	As of	Runs Through	Source
—	$5,000,000,000	—	—	—	10-Q , filed 2026-04-29

Cash spent on buybacks by quarter

Cash deployed each quarter. Δ marks quarters derived from the company's cumulative year-to-date disclosures.

Repurchase History

Fiscal Year Ended	Cash Spent	Shares	Avg Price	Source
2024-12-31	$0	0	—	10-K, filed 2025-02-12
2023-12-31	$0	0	—	10-K, filed 2025-02-12
2022-12-31	$750,000,000	—	—	10-K, filed 2025-02-12
2021-12-31	$1,800,000,000	—	—	10-K, filed 2024-02-14
2020-12-31	$6,679,100,000	—	—	10-K, filed 2023-02-15
2019-12-31	$5,868,300,000	—	—	10-K, filed 2022-02-03
2018-12-31	$4,352,600,000	—	—	10-K, filed 2021-02-03
2017-12-31	$1,365,400,000	—	—	10-K, filed 2020-02-06
2016-12-31	$1,000,000,000	3,300,000	—	10-K, filed 2019-02-06
2015-12-31	$5,000,000,000	16,800,000	—	10-K, filed 2018-02-01
2014-12-31	$886,800,000	2,900,000	—	10-K, filed 2017-02-02
2013-12-31	$400,300,000	2,000,000	—	10-K, filed 2016-02-03
2012-12-31	$984,715,000	7,800,000	—	10-K, filed 2015-02-04
2011-12-31	$497,975,000	6,000,000	—	10-K, filed 2014-02-06
2010-12-31	$2,077,579,000	—	—	10-K, filed 2013-02-05
2009-12-31	$751,170,000	—	—	10-K, filed 2012-02-03
2008-12-31	$738,938,000	—	—	10-K, filed 2011-02-04
2007-12-31	$2,991,184,000	—	—	10-K, filed 2010-02-09

Quarter Ended	Cash Spent	Shares	Avg Price	Source
2023-12-31	$0 Δ	—	—	10-K, filed 2025-02-12
2023-09-30	$0 Δ	—	—	10-Q, filed 2023-11-08
2022-12-31	$0 Δ	—	—	10-K, filed 2025-02-12
2022-09-30	$250,000,000 Δ	1,200,000	—	10-Q, filed 2023-11-08
2022-06-30	$500,000,000 Δ	2,400,000	—	10-Q, filed 2023-07-25
2022-03-31	$0	—	—	10-Q, filed 2022-05-03
2021-12-31	$0 Δ	—	—	10-K, filed 2024-02-14
2021-09-30	$750,000,000 Δ	—	—	10-Q, filed 2022-10-25
2021-06-30	$450,000,000 Δ	—	—	10-Q, filed 2022-07-20
2021-03-31	$600,000,000	—	—	10-Q, filed 2022-05-03
2020-12-31	$400,000,000 Δ	—	—	10-K, filed 2023-02-15
2020-09-30	$1,250,000,000 Δ	—	—	10-Q, filed 2021-10-20

Key facts CIK 875045 CUSIP 09062X103 13F (30d) 947 filings 910 filers Visit website Investor relations