Company / Shares Outstanding
Biogen Shares Outstanding History
FY2016-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Shares Outstanding
144.9M
FY2025
5-year range
144.0M / 174.2M
FY2021-FY2025
Trend
+0.6%
vs FY2024
Sector context
#65 of 212
Health Care
What the data says
At 144900000.00, Biogen's shares outstanding ranks #148 of 212 in the Health Care sector. Shares Outstanding returned to growth in FY2025 after 6 years of decline, reaching 144900000.00.
Based on SEC 10-K filings.
144900000.00 in FY2025 with a 5-year CAGR of -6.0%.
Remained stable around 144900000.00 over the past 2 years.
Health Care sector context is included.
Shares Outstanding over time
Growth rates
- 3-Year CAGR
- -1.7%
- 5-Year CAGR
- -6.0%
- 10-Year CAGR
- -
Sector benchmark
#148 of 212 in Health CareTop 69% of 212This company 144.9M Sector average 306.3M
▼
-52.7% below sector average
Key checks
Key Insights
- In FY2025, shares outstanding increased 0.6% year-over-year.
- Ranks #65 out of 212 companies in the Health Care sector.
- Peak shares outstanding was recorded in FY2016.
- Lowest shares outstanding in the period was in FY2024.
Company context
Key Data Points
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Shares OutstandingValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | 144.9M | +0.6% |
| FY2024 | 144.0M | -2.0% |
| FY2023 | 147.0M | -3.5% |
| FY2022 | 152.4M | -12.5% |
| FY2021 | 174.2M | -11.7% |
| FY2020 | 197.2M | -6.8% |
| FY2019 | 211.5M | -2.0% |
| FY2018 | 215.9M | +0.0% |
| FY2017 | 215.9M | -1.2% |
| FY2016 | 218.6M | -6.8% |
As of FY2025 · SEC 10-K · Updated Mar 3, 2026