BIIB Buybacks
30 quarter-specific issuer repurchase-cash observations normalized from SEC filings, newest first. A filed zero remains visible; a missing filing fact is never converted into zero. This page shows rows 1–30; provenance stays internal.
| Issuer profile | Period end | Type | Reported cash |
|---|---|---|---|
| BIOGEN INC. | 2023-12-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2022-12-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2022-03-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2021-12-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2021-03-31 | Reported repurchase cash | $600M |
| BIOGEN INC. | 2020-12-31 | Reported repurchase cash | $400M |
| BIOGEN INC. | 2020-03-31 | Reported repurchase cash | $2.22B |
| BIOGEN INC. | 2019-12-31 | Reported repurchase cash | $2.09B |
| BIOGEN INC. | 2019-03-31 | Reported repurchase cash | $655.8M |
| BIOGEN INC. | 2018-12-31 | Reported repurchase cash | $1.35B |
| BIOGEN INC. | 2018-03-31 | Reported repurchase cash | $250M |
| BIOGEN INC. | 2017-12-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2017-03-31 | Reported repurchase cash | $583.6M |
| BIOGEN INC. | 2016-12-31 | Reported repurchase cash | $651.1M |
| BIOGEN INC. | 2016-03-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2015-12-31 | Reported repurchase cash | $2B |
| BIOGEN INC. | 2014-12-31 | Reported repurchase cash | $526.82M |
| BIOGEN INC. | 2014-03-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2013-12-31 | Reported repurchase cash | -$8,000.00 |
| BIOGEN INC. | 2013-09-30 | Reported repurchase cash | -$359.3M |
| BIOGEN INC. | 2013-03-31 | Reported repurchase cash | $41.02M |
| BIOGEN INC. | 2012-12-31 | Reported repurchase cash | $21.54M |
| BIOGEN INC. | 2012-03-31 | Reported repurchase cash | $463.17M |
| BIOGEN INC. | 2011-12-31 | Reported repurchase cash | $111.4M |
| BIOGEN INC. | 2011-03-31 | Reported repurchase cash | $195.29M |
| BIOGEN INC. | 2010-12-31 | Reported repurchase cash | $0.00 |
| BIOGEN INC. | 2010-03-31 | Reported repurchase cash | $577.58M |
| BIOGEN INC. | 2009-12-31 | Reported repurchase cash | $693.54M |
| BIOGEN INC. | 2009-03-31 | Reported repurchase cash | $57.63M |
| BIOGEN INC. | 2008-12-31 | Reported repurchase cash | $179.17M |