BIIB ROE - BIOGEN INC.

Complete source-backed roe history.

Available history: 2007-12-31 to 2026-03-31
Data captured: 2026-09-04

Historical ROE

Date	ROE
2026-03-31	7.36%
2025-12-31	7.08%
2025-09-30	8.83%
2025-06-30	8.68%
2025-03-31	8.71%
2024-12-31	9.76%
2024-09-30	9.87%
2024-06-30	7.29%
2024-03-31	7.67%
2023-12-31	7.85%
2023-09-30	10.09%
2023-06-30	18.42%
2023-03-31	22.69%
2022-12-31	22.74%
2022-09-30	22.42%
2022-06-30	17.34%
2022-03-31	12.90%
2021-12-31	14.28%
2021-09-30	14.82%
2021-06-30	17.84%
2021-03-31	28.19%
2020-12-31	37.39%
2020-09-30	47.24%
2020-06-30	52.41%
2020-03-31	46.85%
2019-12-31	44.13%
2019-09-30	38.55%
2019-06-30	40.87%
2019-03-31	33.74%
2018-12-31	33.98%
2018-09-30	23.15%
2018-06-30	24.21%
2018-03-31	21.09%
2017-12-31	20.13%
2017-09-30	27.10%
2017-06-30	28.42%
2017-03-31	30.31%
2016-12-31	30.50%
2016-09-30	32.06%
2016-06-30	33.48%
2016-03-31	35.78%
2015-12-31	37.84%
2015-09-30	34.04%
2015-06-30	27.76%
2015-03-31	28.09%
2014-12-31	27.15%
2014-09-30	24.06%
2014-06-30	22.38%
2014-03-31	20.96%
2013-12-31	21.60%
2013-09-30	20.89%
2013-06-30	20.35%
2013-03-31	20.49%
2012-12-31	19.82%
2012-09-30	20.84%
2012-06-30	21.40%
2012-03-31	19.71%
2011-12-31	19.21%
2011-09-30	18.85%
2011-06-30	18.01%
2011-03-31	19.31%
2010-12-31	18.63%
2010-09-30	21.28%
2010-06-30	21.16%
2010-03-31	15.97%
2009-12-31	15.59%
2009-09-30	13.27%
2009-06-30	12.81%

Annual ROE

Date	ROE
2025-12-31	7.08%
2024-12-31	9.76%
2023-12-31	7.85%
2022-12-31	22.74%
2021-12-31	14.28%
2020-12-31	37.39%
2019-12-31	44.13%
2018-12-31	33.98%
2017-12-31	20.13%
2016-12-31	30.50%
2015-12-31	37.84%
2014-12-31	27.15%
2013-12-31	21.60%
2012-12-31	19.82%
2011-12-31	19.21%
2010-12-31	18.63%
2009-12-31	15.59%
2008-12-31	13.49%
2007-12-31	11.49%