BIIB Pre-Tax Margin - BIOGEN INC.

Complete source-backed pre-tax margin history.

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

Historical Pre-Tax Margin

Date	Pre-Tax Margin
2026-03-31	15.24%
2025-12-31	-2.46%
2025-09-30	21.99%
2025-06-30	28.12%
2025-03-31	12.80%
2024-12-31	11.88%
2024-09-30	18.29%
2024-06-30	28.35%
2024-03-31	20.29%
2023-12-31	12.22%
2023-09-30	-5.58%
2023-06-30	28.83%
2023-03-31	17.80%
2022-12-31	23.73%
2022-09-30	54.66%
2022-06-30	49.03%
2022-03-31	13.72%
2021-12-31	14.81%
2021-09-30	10.48%
2021-06-30	20.98%
2021-03-31	17.33%
2020-12-31	12.37%
2020-09-30	28.37%
2020-06-30	55.34%
2020-03-31	48.08%
2019-12-31	47.08%
2019-09-30	49.42%
2019-06-30	48.62%
2019-03-31	53.30%
2018-12-31	40.11%
2018-09-30	52.71%
2018-06-30	35.12%
2018-03-31	47.71%
2017-12-31	42.33%
2017-09-30	52.31%
2017-06-30	36.79%
2017-03-31	35.11%
2016-12-31	29.19%
2016-09-30	46.25%
2016-06-30	48.44%
2016-03-31	48.61%
2015-12-31	38.24%
2015-09-30	48.83%
2015-06-30	47.16%
2015-03-31	43.17%
2014-12-31	43.59%
2014-09-30	45.24%
2014-06-30	41.03%
2014-03-31	31.26%
2013-12-31	33.19%
2013-09-30	37.20%
2013-06-30	37.84%
2013-03-31	35.06%
2012-12-31	30.41%
2012-09-30	38.30%
2012-06-30	35.80%
2012-03-31	29.76%
2011-12-31	30.54%
2011-09-30	36.70%
2011-06-30	33.02%
2011-03-31	35.42%
2010-12-31	28.75%
2010-09-30	15.92%
2010-06-30	32.73%
2010-03-31	26.63%
2009-12-31	34.58%
2009-09-30	35.12%
2009-06-30	21.73%
2009-03-31	30.08%
2008-12-31	27.31%
2008-09-30	29.47%
2008-06-30	29.47%

Annual Pre-Tax Margin

Date	Pre-Tax Margin
2025-12-31	15.74%
2024-12-31	19.70%
2023-12-31	13.18%
2022-12-31	35.31%
2021-12-31	15.89%
2020-12-31	37.54%
2019-12-31	49.56%
2018-12-31	43.85%
2017-12-31	41.79%
2016-12-31	43.09%
2015-12-31	44.29%
2014-12-31	40.67%
2013-12-31	35.78%
2012-12-31	33.63%
2011-12-31	33.89%
2010-12-31	26.08%
2009-12-31	30.44%
2008-12-31	28.21%
2007-12-31	26.87%