BIOGEN INC BIIB
$216.12
+3.0% 52w: $122.68 – $216.63
Latest 13F among current holders filed 11 days ago (Jun 24, 2026)
Price — last 12 months
research preview data122.68169.66216.63
Jun 20, 2025 Jul 2, 2026
Institutional holders
1.0K
+5 QoQ
13F value
$24.73B
-0.4% QoQ
Smart-money holders
59
signal tier ≥ 2
New smart buyers
11
Q1 2026
Options barometer
0.9×
$324.3M calls / $359.8M puts
Institutional value by quarter
Number of holders
Who owns BIIB?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | Index provider | 16.0M | $2.93B | 0.1% | +7.9% |
| PRIMECAP MANAGEMENT CO/CA/ ★2 | Long only active | 14.8M | $2.71B | 2.1% | 0.0% |
| FMR LLC | Long only active | 12.8M | $2.35B | 0.1% | +35.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 9.5M | $1.75B | 0.0% | — |
| STATE STREET CORP | Index provider | 7.2M | $1.31B | 0.0% | +0.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 6.5M | $1.20B | 0.1% | — |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 4.3M | $793.4M | 0.0% | +3.4% |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 3.0M | $543.0M | 0.1% | -16.6% |
| MORGAN STANLEY | Bank broker | 2.2M | $398.0M | 0.0% | -6.6% |
| JPMORGAN CHASE & CO | Bank broker | 2.0M | $378.1M | 0.0% | +8.5% |
| AQR CAPITAL MANAGEMENT LLC | Quant stat arb | 1.9M | $346.2M | 0.2% | +25.8% |
| Invesco Ltd. | Index provider | 1.7M | $320.0M | 0.0% | +5.4% |
| Boston Partners | Other | 1.7M | $311.7M | 0.3% | -1.2% |
| NORTHERN TRUST CORP | Index provider | 1.4M | $265.2M | 0.0% | 0.0% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 1.4M | $252.5M | 0.1% | -1.0% |
| Legal & General Group Plc | Diversified mechanical | 1.3M | $247.5M | 0.1% | -7.5% |
| T. Rowe Price Investment Management, Inc. | Long only active | 1.2M | $212.8M | 0.1% | -40.4% |
| BANK OF AMERICA CORP /DE/ | Bank broker | 1.2M | $212.0M | 0.0% | +2.4% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 1.1M | $210.7M | 0.0% | +0.5% |
| VAN ECK ASSOCIATES CORP | Diversified mechanical | 1.1M | $198.0M | 0.1% | +1.3% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 1.1M | $197.9M | 0.0% | +12.3% |
| DEUTSCHE BANK AG\ | Bank broker | 1.1M | $195.0M | 0.1% | +11.5% |
| GOLDMAN SACHS GROUP INC | Bank broker | 1.1M | $192.7M | 0.0% | -4.4% |
| Pictet Asset Management Holding SA | Diversified mechanical | 913.3K | $168.3M | 0.2% | -3.6% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 825.5K | $151.3M | 0.0% | — |
| Point72 Asset Management, L.P. | Multistrat pod | 809.6K | $148.4M | 0.3% | -71.2% |
| Alyeska Investment Group, L.P. | Quant stat arb | 805.0K | $147.6M | 0.4% | -21.4% |
| Amundi | Diversified mechanical | 790.8K | $145.0M | 0.0% | +38.2% |
| Bank of New York Mellon Corp | Diversified mechanical | 788.5K | $144.6M | 0.0% | -2.8% |
| Robeco Institutional Asset Management B.V. | Other | 763.2K | $139.9M | 0.2% | +24.9% |
| FRED ALGER MANAGEMENT, LLC | Other | 733.2K | $134.4M | 0.6% | -8.2% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Other | 720.6K | $133.7M | 0.0% | +1.1% |
| Employees Provident Fund Board ★2 | Fundamental diversified | 704.2K | $129.1M | 1.0% | Held |
| FIRST TRUST ADVISORS LP | Index provider | 674.0K | $123.6M | 0.1% | +19.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 672.4K | $123.3M | 0.0% | -15.1% |
| Pacer Advisors, Inc. | Diversified mechanical | 660.4K | $121.1M | 0.3% | -42.4% |
| Balyasny Asset Management L.P. | Multistrat pod | 650.0K | $119.2M | 0.2% | +6.9% |
| AustralianSuper Pty Ltd | Other | 616.2K | $113.0M | 0.6% | +29.2% |
| Artemis Investment Management LLP | Other | 571.6K | $104.8M | 1.1% | +152.0% |
| BARCLAYS PLC | Bank broker | 551.5K | $101.1M | 0.0% | -57.7% |
| ROYAL BANK OF CANADA | Bank broker | 531.4K | $97.4M | 0.0% | -1.9% |
| UBS Group AG | Bank broker | 523.5K | $96.0M | 0.0% | -18.4% |
| Zurcher Kantonalbank (Zurich Cantonalbank) | Diversified mechanical | 522.2K | $95.7M | 0.2% | +15.4% |
| Caisse de depot et placement du Quebec | Other | 518.7K | $95.1M | 0.2% | -11.9% |
| CITIGROUP INC | Bank broker | 500.5K | $91.8M | 0.1% | -12.8% |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 471.1K | $86.4M | 0.1% | -7.3% |
| HSBC HOLDINGS PLC | Bank broker | 463.7K | $84.6M | 0.1% | -54.0% |
| Swiss National Bank | Index provider | 430.6K | $78.9M | 0.0% | +7.2% |
| National Pension Service | Other | 401.7K | $73.6M | 0.1% | +39.8% |
| Candriam S.C.A. | Other | 381.8K | $70.0M | 0.4% | +15.5% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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