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Biogen BIIB Shares (Diluted)
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Where this comes from
Reported directly by Biogen in its filing.
Tagged under the XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding.
The source filing: Biogen’s 10-Q, filed July 29, 2026.
- Filed
- Jul 29, 2026, 6:36 AM EDT
- Fiscal quarter
- Q2 FY2026
- Calendar quarter
- Q2 2026
- Accession
- 0000875045-26-000075
| Line item | For the Three Months Ended June 30, 2026 | For the Three Months Ended June 30, 2025 | For the Six Months Ended June 30, 2026 | For the Six Months Ended June 30, 2025 |
|---|---|---|---|---|
| Income tax (benefit) expense | 34.9 | 109.2 | 93.1 | 179.9 |
| Net income attributable to Biogen Inc. | $97.5 | $634.8 | $417.0 | $875.3 |
| Net income per share: | ||||
| Basic earnings per share attributable to Biogen Inc. | $0.66 | $4.33 | $2.83 | $5.98 |
| Diluted earnings per share attributable to Biogen Inc. | $0.66 | $4.33 | $2.81 | $5.97 |
| Weighted-average shares used in calculating: | ||||
| Basic earnings per share attributable to Biogen Inc. | 147.7 | 146.5 | 147.4 | 146.3 |
| Diluted earnings per share attributable to Biogen Inc. | 148.7 | 146.7 | 148.6 | 146.7 |
Item 1. Financial Statements (unaudited)
FAQ
- What is Biogen's shares (diluted)?
- Biogen (BIIB) reported shares (diluted) of 148.7M in Q2 2026.
- How has Biogen's shares (diluted) changed year-over-year?
- Biogen's shares (diluted) increased by 1.4% year-over-year, from 146.7M to 148.7M.
- What is the long-term trend for Biogen's shares (diluted)?
- Over 4 years (2021 to 2025), Biogen's shares (diluted) has grown at a -0.5% compound annual growth rate (CAGR), from 600.6M to 587.5M.
- What does shares (diluted) mean?
- The weighted-average shares outstanding plus all potentially dilutive shares from stock options, RSUs, convertible securities, and warrants, using the treasury stock method.
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