BIIB Institutional Holdings
Biogen · SEC 13F
As of 2026Q1 · SEC EDGAR 13F
Quarterly Changes
2025Q4 → 2026Q1
↑ New Positions (5)
VANGUARD CAPITAL MANAGEMENT LLC $3.5B
Employees Provident Fund Board $2.4B
VANGUARD PORTFOLIO MANAGEMENT LLC $1.2B
HSBC HOLDINGS PLC $262M
VANGUARD FIDUCIARY TRUST CO $151M
↑ Increased (5)
Harvest Fund Management Co., Ltd +Infinity%
CWM, LLC +117464.1%
Daiwa Securities Group Inc. +107487.4%
Morningstar Investment Management LLC +107202.1%
IFM Investors Pty Ltd +100585.1%
↓ Decreased (5)
Pacer Advisors, Inc. -99.8%
Kentucky Retirement Systems -99.7%
Swiss Life Asset Management Ltd -97.9%
Aster Capital Management (DIFC) Ltd -97.0%
TWO SIGMA INVESTMENTS, LP -96.1%
↓ Exited Positions (5)
VANGUARD GROUP INC $3.1B
Jain Global LLC $62M
Freestone Grove Partners LP $33M
Y-Intercept (Hong Kong) Ltd $24M
SUVRETTA CAPITAL MANAGEMENT, LLC $23M
All Holders (Top 100)
| Rank | Institution | Shares | Value |
|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 19.1M | $3.5B |
| 2 | BlackRock, Inc. | 16.0M | $2.9B |
| 3 | PRIMECAP MANAGEMENT CO/CA/ | 14.8M | $2.7B |
| 4 | Employees Provident Fund Board | 11.1M | $2.4B |
| 5 | FMR LLC | 12.8M | $2.3B |
| 6 | BARCLAYS PLC | 9.1M | $1.8B |
| 7 | STATE STREET CORP | 7.2M | $1.3B |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6.5M | $1.2B |
| 9 | MORGAN STANLEY | 6.7M | $1.1B |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 4.3M | $793M |
| 11 | WELLINGTON MANAGEMENT GROUP LLP | 3.0M | $543M |
| 12 | GOLDMAN SACHS GROUP INC | 2.2M | $386M |
| 13 | JPMORGAN CHASE & CO | 2.0M | $378M |
| 14 | AQR CAPITAL MANAGEMENT LLC | 1.9M | $346M |
| 15 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1.2M | $328M |
| 16 | Invesco Ltd. | 1.7M | $320M |
| 17 | Boston Partners | 1.7M | $312M |
| 18 | NORGES BANK | 2.2M | $295M |
| 19 | NORTHERN TRUST CORP | 1.4M | $265M |
| 20 | HSBC HOLDINGS PLC | 1.5M | $262M |
| 21 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.4M | $253M |
| 22 | Legal & General Group Plc | 1.3M | $247M |
| 23 | BANK OF AMERICA CORP /DE/ | 1.2M | $212M |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1M | $211M |
| 25 | DIMENSIONAL FUND ADVISORS LP | 1.1M | $198M |
| 26 | DEUTSCHE BANK AG\ | 1.1M | $195M |
| 27 | Pictet Asset Management Holding SA | 913K | $168M |
| 28 | VANGUARD FIDUCIARY TRUST CO | 826K | $151M |
| 29 | Point72 Asset Management, L.P. | 810K | $148M |
| 30 | Alyeska Investment Group, L.P. | 805K | $148M |
| 31 | Amundi | 791K | $145M |
| 32 | Bank of New York Mellon Corp | 789K | $145M |
| 33 | Robeco Institutional Asset Management B.V. | 763K | $140M |
| 34 | FRED ALGER MANAGEMENT, LLC | 733K | $134M |
| 35 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 721K | $134M |
| 36 | Candriam S.C.A. | 712K | $128M |
| 37 | FIRST TRUST ADVISORS LP | 674K | $124M |
| 38 | Balyasny Asset Management L.P. | 650K | $119M |
| 39 | AustralianSuper Pty Ltd | 616K | $113M |
| 40 | Artemis Investment Management LLP | 572K | $105M |
| 41 | Leonteq Securities AG | 466K | $105M |
| 42 | ROYAL BANK OF CANADA | 531K | $97M |
| 43 | UBS Group AG | 523K | $96M |
| 44 | Zurcher Kantonalbank (Zurich Cantonalbank) | 522K | $96M |
| 45 | Caisse de depot et placement du Quebec | 519K | $95M |
| 46 | CITIGROUP INC | 501K | $92M |
| 47 | BNP PARIBAS FINANCIAL MARKETS | 471K | $86M |
| 48 | Swiss National Bank | 431K | $79M |
| 49 | National Pension Service | 402K | $74M |
| 50 | Patient Capital Management, LLC | 380K | $70M |
| 51 | DANSKE BANK A/S | 342K | $67M |
| 52 | Nuveen, LLC | 359K | $66M |
| 53 | Sumitomo Mitsui Trust Group, Inc. | 356K | $65M |
| 54 | Vanguard Global Advisers, LLC | 344K | $63M |
| 55 | California Public Employees Retirement System | 341K | $62M |
| 56 | Mitsubishi UFJ Asset Management Co., Ltd. | 334K | $61M |
| 57 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 333K | $61M |
| 58 | VICTORY CAPITAL MANAGEMENT INC | 321K | $59M |
| 59 | Man Group plc | 319K | $58M |
| 60 | FIL Ltd | 318K | $58M |
| 61 | Fisher Asset Management, LLC | 313K | $57M |
| 62 | Gotham Asset Management, LLC | 298K | $55M |
| 63 | Swedbank AB | 290K | $53M |
| 64 | CAUSEWAY CAPITAL MANAGEMENT LLC | 281K | $51M |
| 65 | RHUMBLINE ADVISERS | 275K | $50M |
| 66 | AEGON ASSET MANAGEMENT UK Plc | 259K | $47M |
| 67 | VANGUARD ASSET MANAGEMENT, Ltd | 250K | $46M |
| 68 | MARSHALL WACE, LLP | 230K | $42M |
| 69 | Sofinnova Investments, Inc. | 230K | $42M |
| 70 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 221K | $40M |
| 71 | Woodline Partners LP | 218K | $40M |
| 72 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 215K | $40M |
| 73 | Qube Research & Technologies Ltd | 213K | $39M |
| 74 | ALLIANCEBERNSTEIN L.P. | 213K | $37M |
| 75 | RENAISSANCE TECHNOLOGIES LLC | 203K | $37M |
| 76 | Hudson Bay Capital Management LP | 201K | $37M |
| 77 | Logos Global Management LP | 200K | $37M |
| 78 | KLP KAPITALFORVALTNING AS | 199K | $37M |
| 79 | PRINCIPAL FINANCIAL GROUP INC | 187K | $34M |
| 80 | Allianz Asset Management GmbH | 178K | $33M |
| 81 | PRUDENTIAL FINANCIAL INC | 164K | $30M |
| 82 | IEQ CAPITAL, LLC | 152K | $28M |
| 83 | ExodusPoint Capital Management, LP | 152K | $28M |
| 84 | Aberdeen Group plc | 151K | $28M |
| 85 | LETKO, BROSSEAU & ASSOCIATES INC | 151K | $28M |
| 86 | FRANKLIN RESOURCES INC | 144K | $26M |
| 87 | PANAGORA ASSET MANAGEMENT INC | 142K | $26M |
| 88 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 141K | $26M |
| 89 | Palo Alto Investors LP | 141K | $26M |
| 90 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 140K | $26M |
| 91 | CITADEL ADVISORS LLC | 138K | $25M |
| 92 | Russell Investments Group, Ltd. | 136K | $25M |
| 93 | AMERIPRISE FINANCIAL INC | 133K | $24M |
| 94 | Eurizon Capital SGR S.p.A. | 129K | $24M |
| 95 | TD Asset Management Inc | 127K | $23M |
| 96 | WELLS FARGO & COMPANY/MN | 127K | $23M |
| 97 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | 124K | $23M |
| 98 | Portolan Capital Management, LLC | 118K | $22M |
| 99 | Creative Planning | 117K | $21M |
| 100 | Quantinno Capital Management LP | 116K | $21M |
Data source: SEC EDGAR Form 13F · Updated 2026-07-09