BIIB
Biogen Inc.
Stock
$222.82−3.06 (−1.35%)Close Oct 1, 2026
| Shares outstanding (Q2 2026) | YoY | 5-year CAGR | 10-year CAGR |
|---|---|---|---|
| 147.8M | +0.8% | −0.7% | −3.9% |
| Shares outstanding (Q2 2026) | 147.8M |
|---|---|
| YoY | +0.8% |
| 5-year CAGR | −0.7% |
| 10-year CAGR | −3.9% |
Shares outstanding
| Period | Shares outstanding | YoY |
|---|---|---|
| 2025 | 146.8M | +0.3% |
| 2024 | 146.4M | +0.7% |
| 2023 | 145.4M | +0.6% |
| 2022 | 144.5M | −1.7% |
| 2021 | 147.0M | −3.5% |
| 2020 | 152.3M | −12.5% |
| 2019 | 174.1M | −11.5% |
| 2018 | 196.7M | −7.0% |
| 2017 | 211.6M | −2.0% |
| 2016 | 216.0M | −1.2% |
| 2015 | 218.7M | −6.8% |
| 2014 | 234.6M | −0.8% |
| 2013 | 236.4M | 0.0% |
| 2012 | 236.3M | −1.0% |
| 2011 | 238.7M | −0.9% |
| 2010 | 240.9M | −10.6% |
| 2009 | 269.6M | — |