BIIB
Biogen Inc.
Set alert
253.62 USD +3.97 +1.59%
251.19 Day range 258.73
149.33 52-week range 253.84
- YTD
- +44.11%
- 1 year
- +69.52%
- Open
- 255.39
- Prev close
- 249.65
- Mkt cap
- 37.49B
- Vol
- 1.30M
- Avg vol
- 1.04M
- EPS
- 2.31
- P/E
- 109.79
- Div yield
- 0.00%
More statistics
- Low
- 251.19
- High
- 258.73
- Forward P/E
- 15.56
- Beta
- 0.09
- Short ratio
- 4.46
- Inst. own
- 99.49%
- Dividend
- 0.00
- Ex-div date
- Earnings
- Feb 5, 2027
- 50-d avg
- 226.29
- 200-d avg
- 200.75
- 1y target
- 263.60
Ownership
Held by insiders 0.19%
Held by institutions 99.49%
Float held by institutions 99.68%
Institutions 1,498
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| FMR, LLC | 12.32% | 18,217,239 | 4.62B | Jun 29, 2026 |
| Blackrock Inc. | 10.81% | 15,985,736 | 4.05B | Jun 29, 2026 |
| Primecap Management Company | 10.25% | 15,154,606 | 3.84B | Jun 29, 2026 |
| Vanguard Capital Management LLC | 6.53% | 9,651,117 | 2.45B | Jun 29, 2026 |
| State Street Corporation | 4.97% | 7,344,327 | 1.86B | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 4.47% | 6,604,936 | 1.68B | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| VANGUARD CHESTER FUNDS-Vanguard PRIMECAP Fund | 5.66% | 8,359,880 | 2.12B | Jun 29, 2026 |
| Fidelity Contrafund | 3.26% | 4,817,040 | 1.22B | Aug 30, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.17% | 4,687,985 | 1.19B | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard 500 Index Fund | 2.59% | 3,827,862 | 970.76M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Mid-Cap Index Fund | 2.16% | 3,199,078 | 811.30M | Jun 29, 2026 |
| VANGUARD SPECIALIZED FUNDS-Vanguard Health Care Fund | 1.86% | 2,745,486 | 696.27M | Jul 30, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| ALEXANDER SUSAN H | Officer | Conversion of Exercise of derivative security | Feb 5, 2026 | 61,889 |
| DORSA CAROLINE D | Director | Stock Award(Grant) | Jun 16, 2025 | 31,002 |
| GREGORY GINGER | Officer | Conversion of Exercise of derivative security | Feb 5, 2026 | 22,358 |
| KRAMER ROBIN C. | Chief Financial Officer | Conversion of Exercise of derivative security | Feb 5, 2026 | 11,471 |
| MANTAS JESUS B | Director | Stock Award(Grant) | Jun 8, 2026 | 11,263 |
| MCDONNELL MICHAEL R | Chief Financial Officer | Conversion of Exercise of derivative security | Feb 9, 2025 | 24,341 |
Held by funds
452 US ETFs and mutual funds hold BIIB · largest positions