BIIB · NASDAQ-GS
| Manager | Filing date | Shares | Value | Change |
|---|---|---|---|---|
| Blackrock, Inc. | Mar 31, 2026 | 29.51M | $6.15B | +40.05% |
| Vanguard Group Inc | Dec 31, 2025 | 28.12M | $5.86B | +3.10% |
| Primecap Management Co/Ca/ | Mar 31, 2026 | 14.76M | $3.08B | -0.00% |
| Vanguard Capital Management Llc | Mar 31, 2026 | 14.31M | $2.98B | 0.00% |
| State Street Corp | Mar 31, 2026 | 14.01M | $2.92B | +19.03% |
| Fmr Llc | Mar 31, 2026 | 12.81M | $2.67B | +35.47% |
| Avoro Capital Advisors Llc | Mar 31, 2026 | 12.22M | $2.55B | 0.00% |
| Morgan Stanley | Mar 31, 2026 | 12.21M | $2.55B | +6.22% |
| Vanguard Portfolio Management Llc | Mar 31, 2026 | 11.94M | $2.49B | 0.00% |
| Ubs Group Ag | Mar 31, 2026 | 6.73M | $1.40B | +39.40% |
| Geode Capital Management, Llc | Mar 31, 2026 | 6.42M | $1.34B | +3.09% |
| Pentwater Capital Management Lp | Mar 31, 2026 | 5.25M | $1.09B | 0.00% |
| Point72 Asset Management, L.P. | Mar 31, 2026 | 4.99M | $1.04B | +46.40% |
| Deep Track Capital, Lp | Mar 31, 2026 | 4.53M | $944.77M | -41.52% |
| Jpmorgan Chase & Co | Mar 31, 2026 | 4.06M | $847.13M | +101.68% |
| Norges Bank | Dec 31, 2025 | 3.84M | $799.88M | -17.15% |
| Rtw Investments, Lp | Mar 31, 2026 | 3.69M | $768.15M | -51.94% |
| Hbk Investments L P | Mar 31, 2026 | 3.55M | $740.00M | 0.00% |
| Suvretta Capital Management, Llc | Mar 31, 2026 | 3.52M | $733.42M | -17.63% |
| Wellington Management Group Llp | Mar 31, 2026 | 3.21M | $669.39M | -80.27% |
| Goldman Sachs Group Inc | Mar 31, 2026 | 3.03M | $631.86M | +135.24% |
| Balyasny Asset Management L.P. | Mar 31, 2026 | 2.57M | $535.21M | +281.46% |
| Dimensional Fund Advisors Lp | Mar 31, 2026 | 2.42M | $504.06M | +111.82% |
| Aqr Capital Management Llc | Mar 31, 2026 | 2.35M | $490.18M | -38.20% |
| Millennium Management Llc | Mar 31, 2026 | 2.35M | $490.02M | +13.45% |
| Bank Of America Corp /De/ | Mar 31, 2026 | 2.35M | $489.28M | +12.54% |
| Northern Trust Corp | Mar 31, 2026 | 2.19M | $455.47M | +1.98% |
| Invesco Ltd. | Mar 31, 2026 | 2.18M | $455.07M | +16.04% |
| Charles Schwab Investment Management Inc | Mar 31, 2026 | 1.83M | $380.48M | +2.06% |
| Legal & General Group Plc | Mar 31, 2026 | 1.58M | $328.95M | +2.14% |
| First Trust Advisors Lp | Mar 31, 2026 | 1.58M | $328.85M | +48.58% |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Ame | Mar 31, 2026 | 1.56M | $324.67M | -0.81% |
| Vanguard Fiduciary Trust Co | Mar 31, 2026 | 1.48M | $308.60M | 0.00% |
| Fil Ltd | Mar 31, 2026 | 1.46M | $303.93M | +356.29% |
| Hudson Bay Capital Management Lp | Mar 31, 2026 | 1.39M | $290.12M | -0.71% |
| Bank Of New York Mellon Corp | Mar 31, 2026 | 1.31M | $273.76M | +21.26% |
| Glazer Capital, Llc | Mar 31, 2026 | 1.29M | $269.77M | 0.00% |
| Toronto Dominion Bank | Mar 31, 2026 | 1.28M | $266.78M | +2502.66% |
| Boston Partners | Jun 30, 2026 | 1.26M | $263.36M | -25.68% |
| Tig Advisors, Llc | Mar 31, 2026 | 1.25M | $261.19M | 0.00% |
| Man Group Plc | Mar 31, 2026 | 1.23M | $257.32M | +155.28% |
| Healthcare Of Ontario Pension Plan Trust Fund | Mar 31, 2026 | 1.21M | $252.50M | +2734.03% |
| T. Rowe Price Investment Management, Inc. | Mar 31, 2026 | 1.17M | $243.08M | -0.57% |
| Deutsche Bank Ag\ | Mar 31, 2026 | 1.16M | $241.63M | -50.44% |
| Marshall Wace, Llp | Mar 31, 2026 | 1.16M | $241.57M | -15.82% |
| Renaissance Technologies Llc | Mar 31, 2026 | 1.14M | $237.50M | +10.38% |
| Kryger Capital Llc | Mar 31, 2026 | 1.10M | $229.29M | 0.00% |
| Woodline Partners Lp | Mar 31, 2026 | 1.09M | $226.21M | +68.17% |
| Van Eck Associates Corp | Mar 31, 2026 | 1.08M | $225.10M | +1.34% |
| Soros Fund Management Llc | Mar 31, 2026 | 1.06M | $220.12M | 0.00% |