Titelia

Fund shareholders of Biogen Inc

ISIN US09062X1037 · United States · LEI W8J5WZB5IY3K0NDQT671

Fund shareholders
831
Of which ETFs
244 587 other funds
Value held
12.4B $ 1.3B SEK · 50.6M €
Share of capital
45.9 % of 147.8M shares on Jul 27, 2026

831 funds hold this company. This table lists the 827 that declare it in a regulatory filing. The other 4 publish their holdings in their own reports. They are not in the table.

FundSharesValueWeight in fundShare of capital
VANGUARD PRIMECAP FUND VANGUARD CHESTER FUNDS 8,359,8801.5B $2.12 %5.66 %as of Mar 31, 2026 ↗
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS 4,654,936853.4M $0.04 %3.15 %as of Mar 31, 2026 ↗
VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS 3,730,577683.9M $0.05 %2.52 %as of Mar 31, 2026 ↗
Fidelity Contrafund Fidelity Contrafund 3,269,520599.4M $0.38 %2.21 %as of Mar 31, 2026 ↗
VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS 3,169,409581M $0.29 %2.15 %as of Mar 31, 2026 ↗
VANGUARD HEALTH CARE FUND VANGUARD SPECIALIZED FUNDS 2,526,097478.1M $1.30 %1.71 %as of Apr 30, 2026 ↗
VANGUARD CAPITAL OPPORTUNITY FUND VANGUARD HORIZON FUNDS 2,332,567427.6M $1.74 %1.58 %as of Mar 31, 2026 ↗
iShares Core S&P 500 ETF iShares Trust 1,888,033346.1M $0.05 %1.28 %as of Mar 31, 2026 ↗
Fidelity 500 Index Fund Fidelity Concord Street Trust 1,866,971358.1M $0.05 %1.26 %as of Feb 28, 2026 ↗
VANGUARD VALUE INDEX FUND VANGUARD INDEX FUNDS 1,357,618248.9M $0.11 %0.92 %as of Mar 31, 2026 ↗
VANGUARD PRIMECAP CORE FUND VANGUARD FENWAY FUNDS 1,316,936241.4M $1.78 %0.89 %as of Mar 31, 2026 ↗
Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II 1,242,366238.3M $0.11 %0.84 %as of Feb 28, 2026 ↗
iShares Biotechnology ETF iShares Trust 1,091,046200M $2.46 %0.74 %as of Mar 31, 2026 ↗
State Street(R) Health Care Select Sector SPDR(R) ETF SELECT SECTOR SPDR TRUST 1,067,952195.8M $0.51 %0.72 %as of Mar 31, 2026 ↗
VANGUARD MID-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS 954,017174.9M $0.50 %0.65 %as of Mar 31, 2026 ↗
Invesco S&P 500 Equal Weight ETF Invesco Exchange-Traded Fund Trust 885,775167.7M $0.19 %0.60 %as of Apr 30, 2026 ↗
VANGUARD INSTITUTIONAL INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS 827,362151.7M $0.05 %0.56 %as of Mar 31, 2026 ↗
Disciplined Value Mid Cap Fund John Hancock Funds III 781,583143.3M $0.65 %0.53 %as of Mar 31, 2026 ↗
Fidelity Series Value Discovery Fund Fidelity Devonshire Trust 772,400146.2M $0.92 %0.52 %as of Apr 30, 2026 ↗
Fidelity Contrafund K6 Fidelity Contrafund 719,692131.9M $0.39 %0.49 %as of Mar 31, 2026 ↗
PRIMECAP Odyssey Aggressive Growth Fund PRIMECAP Odyssey Funds 712,650134.9M $1.99 %0.48 %as of Apr 30, 2026 ↗
Fidelity Puritan Fund Fidelity Puritan Trust 644,300123.6M $0.38 %0.44 %as of Feb 28, 2026 ↗
Pacer US Cash Cows 100 ETF Pacer Funds Trust 642,650121.6M $0.67 %0.43 %as of Apr 30, 2026 ↗
PRIMECAP Odyssey Growth Fund PRIMECAP Odyssey Funds 615,350116.5M $2.14 %0.42 %as of Apr 30, 2026 ↗
iShares Russell Mid-Cap ETF iShares Trust 558,815102.4M $0.21 %0.38 %as of Mar 31, 2026 ↗
Fidelity Mid Cap Index Fund Fidelity Salem Street Trust 541,113102.4M $0.20 %0.37 %as of Apr 30, 2026 ↗
PRIMECAP Odyssey Stock Fund PRIMECAP Odyssey Funds 533,140100.9M $2.27 %0.36 %as of Apr 30, 2026 ↗
Fidelity Low-Priced Stock Fund Fidelity Puritan Trust 508,54296.3M $0.40 %0.34 %as of Apr 30, 2026 ↗
T. Rowe Price Mid-Cap Growth Fund, Inc. T. ROWE PRICE MID-CAP GROWTH FUND, INC. 497,20091.2M $0.40 %0.34 %as of Mar 31, 2026 ↗
State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST 444,85581.6M $1.10 %0.30 %as of Mar 31, 2026 ↗
VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND 440,42584.5M $0.42 %0.30 %as of Feb 28, 2026 ↗
First Trust NYSE Arca Biotechnology Index Fund First Trust Exchange-Traded Fund 429,85378.8M $3.47 %0.29 %as of Mar 31, 2026 ↗
MFS Mid Cap Value Fund MFS SERIES TRUST XI 414,84776.1M $0.48 %0.28 %as of Mar 31, 2026 ↗
BlackRock Health Sciences Opportunities Portfolio BlackRock Funds 364,18869.9M $1.07 %0.25 %as of Feb 27, 2026 ↗
iShares Russell 1000 Value ETF iShares Trust 335,74761.6M $0.09 %0.23 %as of Mar 31, 2026 ↗
Schwab S&P 500 Index Fund SCHWAB CAPITAL TRUST 326,58561.8M $0.04 %0.22 %as of Apr 30, 2026 ↗
State Street(R) SPDR(R) Portfolio S&P 500(R) ETF SPDR SERIES TRUST 308,32856.5M $0.05 %0.21 %as of Mar 31, 2026 ↗
Select Biotechnology Portfolio Fidelity Select Portfolios 299,43557.4M $1.07 %0.20 %as of Feb 28, 2026 ↗
Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII 294,10055.7M $2.92 %0.20 %as of Apr 30, 2026 ↗
AP7 Aktiefond Sjunde AP-fonden 277,452484.6M SEK0.04 %0.19 %as of Mar 31, 2026 ↗
Fidelity Total Market Index Fund Fidelity Concord Street Trust 274,19552.6M $0.04 %0.19 %as of Feb 28, 2026 ↗
CAPITAL GROWTH PORTFOLIO VANGUARD VARIABLE INSURANCE FUNDS 263,55048.3M $2.10 %0.18 %as of Mar 31, 2026 ↗
iShares S&P 500 Value ETF iShares Trust 253,22446.4M $0.10 %0.17 %as of Mar 31, 2026 ↗
Patient Opportunity Trust Advisor Managed Portfolios 250,00045.8M $2.64 %0.17 %as of Mar 31, 2026 ↗
T. Rowe Price Equity Income Fund T. ROWE PRICE EQUITY INCOME FUND, INC. 237,00043.4M $0.27 %0.16 %as of Mar 31, 2026 ↗
Fidelity SAI U.S. Low Volatility Index Fund Fidelity Salem Street Trust 231,63843.8M $0.21 %0.16 %as of Apr 30, 2026 ↗
Fidelity Series Total Market Index Fund Fidelity Concord Street Trust 216,91741.6M $0.04 %0.15 %as of Feb 28, 2026 ↗
iShares Russell Mid-Cap Value ETF iShares Trust 210,34738.6M $0.27 %0.14 %as of Mar 31, 2026 ↗
ALGER FOCUS EQUITY FUND ALGER INSTITUTIONAL FUNDS 205,14938.8M $0.64 %0.14 %as of Apr 30, 2026 ↗
Goldman Sachs ActiveBeta(R) U.S. Large Cap Equity ETF Goldman Sachs ETF Trust 195,91837.6M $0.26 %0.13 %as of Feb 28, 2026 ↗
iShares Core S&P Total U.S. Stock Market ETF iShares Trust 185,28634M $0.04 %0.13 %as of Mar 31, 2026 ↗
JPMorgan Large Cap Value Fund JPMorgan Trust II 182,19533.4M $0.68 %0.12 %as of Mar 31, 2026 ↗
Schwab Fundamental U.S. Large Company ETF SCHWAB STRATEGIC TRUST 179,44034.4M $0.14 %0.12 %as of Feb 28, 2026 ↗
Fidelity Fund Fidelity Hastings Street Trust 178,00032.6M $0.39 %0.12 %as of Mar 31, 2026 ↗
Fidelity Value Discovery Fund Fidelity Puritan Trust 176,30033.4M $0.88 %0.12 %as of Apr 30, 2026 ↗
State Street(R) SPDR(R) Portfolio S&P 500(R) Value ETF SPDR SERIES TRUST 172,48331.6M $0.10 %0.12 %as of Mar 31, 2026 ↗
iShares MSCI USA Value Factor ETF iShares Trust 172,46132.6M $0.27 %0.12 %as of Apr 30, 2026 ↗
VANGUARD LARGE-CAP INDEX FUND VANGUARD INDEX FUNDS 172,28031.6M $0.05 %0.12 %as of Mar 31, 2026 ↗
Bridge Builder Large Cap Value Fund Bridge Builder Trust 152,08927.9M $0.11 %0.10 %as of Mar 31, 2026 ↗
Schwab U.S. Large-Cap ETF SCHWAB STRATEGIC TRUST 150,60428.9M $0.05 %0.10 %as of Feb 28, 2026 ↗
THE U.S. LARGE CAP VALUE SERIES DFA INVESTMENT TRUST CO 139,08226.3M $0.09 %0.09 %as of Apr 30, 2026 ↗
Fidelity Advisor Diversified Stock Fund Fidelity Destiny Portfolios 139,00025.5M $0.70 %0.09 %as of Mar 31, 2026 ↗
S&P 500 Index Master Portfolio Master Investment Portfolio 134,49124.7M $0.05 %0.09 %as of Mar 31, 2026 ↗
Fidelity SAI U.S. Value Index Fund Fidelity Salem Street Trust 126,82924M $0.30 %0.09 %as of Apr 30, 2026 ↗
Nuveen Equity Index Fund TIAA-CREF Funds 125,83223.8M $0.04 %0.09 %as of Apr 30, 2026 ↗
iShares Core S&P U.S. Value ETF iShares Trust 123,96722.7M $0.09 %0.08 %as of Mar 31, 2026 ↗
VANGUARD TOTAL WORLD STOCK INDEX FUND VANGUARD INTERNATIONAL EQUITY INDEX FUNDS 121,82823.1M $0.03 %0.08 %as of Apr 30, 2026 ↗
Fidelity Growth Company Fund Fidelity Mt. Vernon Street Trust 120,53523.1M $0.03 %0.08 %as of Feb 28, 2026 ↗
Victory Pioneer Core Equity Fund Victory Portfolios IV 117,62321.6M $1.12 %0.08 %as of Mar 31, 2026 ↗
Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust 114,92021.8M $0.05 %0.08 %as of Apr 30, 2026 ↗
Fidelity Mid-Cap Stock Fund Fidelity Concord Street Trust 114,86521.7M $0.25 %0.08 %as of Apr 30, 2026 ↗
Bridge Builder Small/Mid Cap Value Fund Bridge Builder Trust 110,50220.3M $0.22 %0.07 %as of Mar 31, 2026 ↗
JPMorgan Active Value ETF J.P. Morgan Exchange-Traded Fund Trust 109,38320.1M $0.34 %0.07 %as of Mar 31, 2026 ↗
Fidelity Series Intrinsic Opportunities Fund Fidelity Puritan Trust 107,40020.3M $0.68 %0.07 %as of Apr 30, 2026 ↗
ALGER SPECTRA FUND ALGER FUNDS II 105,35519.9M $0.46 %0.07 %as of Apr 30, 2026 ↗
iShares Russell 1000 ETF iShares Trust 104,47819.2M $0.04 %0.07 %as of Mar 31, 2026 ↗
First Trust Health Care AlphaDEX Fund First Trust Exchange-Traded AlphaDEX Fund 103,21619.5M $2.23 %0.07 %as of Apr 30, 2026 ↗
iShares ESG Aware MSCI USA ETF iShares Trust 101,02819.4M $0.12 %0.07 %as of Feb 28, 2026 ↗
Swedbank Robur Transfer 80 Swedbank Robur Fonder AB 96,300168.2M SEK0.17 %0.07 %as of Mar 31, 2026 ↗
T. Rowe Price Capital Appreciation Equity ETF T. Rowe Price Exchange-Traded Funds, Inc. 95,67317.5M $0.28 %0.06 %as of Mar 31, 2026 ↗
MFS Blended Research Mid Cap Equity Fund MFS Series Trust X 94,51618.1M $0.71 %0.06 %as of Feb 28, 2026 ↗
ALGER CAPITAL APPRECIATION INSTITUTIONAL FUND ALGER INSTITUTIONAL FUNDS 94,20417.8M $0.54 %0.06 %as of Apr 30, 2026 ↗
T. Rowe Price Equity Index 500 Fund T. ROWE PRICE INDEX TRUST, INC. 91,84716.8M $0.05 %0.06 %as of Mar 31, 2026 ↗
Fidelity Low-Priced Stock K6 Fund Fidelity Puritan Trust 91,42917.3M $0.40 %0.06 %as of Apr 30, 2026 ↗
Fidelity New Millennium Fund Fidelity Mt. Vernon Street Trust 91,10017.5M $0.32 %0.06 %as of Feb 28, 2026 ↗
AQR Long-Short Equity Fund AQR Funds 90,07516.5M $0.20 %0.06 %as of Mar 31, 2026 ↗
JNL/T. Rowe Price Mid-Cap Growth Fund JNL Series Trust 87,50016M $0.40 %0.06 %as of Mar 31, 2026 ↗
VANGUARD TAX-MANAGED CAPITAL APPRECIATION FUND VANGUARD TAX-MANAGED FUNDS 87,25916M $0.06 %0.06 %as of Mar 31, 2026 ↗
Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust 86,53816.6M $0.07 %0.06 %as of Feb 28, 2026 ↗
Large Cap Index Master Portfolio Master Investment Portfolio 86,49315.9M $0.04 %0.06 %as of Mar 31, 2026 ↗
Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST 86,14616.3M $0.04 %0.06 %as of Apr 30, 2026 ↗
Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST 85,19916.3M $0.04 %0.06 %as of Feb 28, 2026 ↗
VANGUARD RUSSELL 1000 VALUE INDEX FUND VANGUARD SCOTTSDALE FUNDS 84,84116.3M $0.09 %0.06 %as of Feb 28, 2026 ↗
Swedbank Robur Aktiefond Pension Swedbank Robur Fonder AB 83,100145.1M SEK0.14 %0.06 %as of Mar 31, 2026 ↗
VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS 82,53315.1M $0.03 %0.06 %as of Mar 31, 2026 ↗
Schwab Fundamental U.S. Large Company Index Fund SCHWAB CAPITAL TRUST 79,04215M $0.12 %0.05 %as of Apr 30, 2026 ↗
Schwab U.S. Large-Cap Value ETF SCHWAB STRATEGIC TRUST 77,35814.8M $0.09 %0.05 %as of Feb 28, 2026 ↗
VANGUARD FTSE SOCIAL INDEX FUND VANGUARD WORLD FUND 76,39514.7M $0.06 %0.05 %as of Feb 28, 2026 ↗
Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust 76,36514.5M $0.04 %0.05 %as of Apr 30, 2026 ↗
VanEck Biotech ETF VanEck ETF Trust 75,44313.8M $3.72 %0.05 %as of Mar 31, 2026 ↗

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The funds most exposed to it

The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.

FundWeight in fund
Invesco Biotechnology & Genome ETF Invesco Exchange-Traded Fund Trust 5.05 %as of Apr 30, 2026 ↗
MERCH-UNIVERSAL, FI ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. 4.15 %as of Dec 31, 2025 ↗
VanEck Biotech ETF VanEck ETF Trust 3.72 %as of Mar 31, 2026 ↗
iShares Neuroscience and Healthcare ETF iShares Trust 3.67 %as of Apr 30, 2026 ↗
iShares Health Innovation Active ETF BlackRock ETF Trust 3.63 %as of Apr 30, 2026 ↗
First Trust Nasdaq Pharmaceuticals ETF First Trust Exchange-Traded Fund VI 3.62 %as of Mar 31, 2026 ↗
First Trust NYSE Arca Biotechnology Index Fund First Trust Exchange-Traded Fund 3.47 %as of Mar 31, 2026 ↗
MERCHFONDO, FI ANDBANK WEALTH MANAGEMENT, SGIIC, S.A.U. 3.45 %as of Dec 31, 2025 ↗
The Free Markets ETF Tidal Trust I 3.40 %as of Feb 28, 2026 ↗
Alger Mid Cap 40 ETF Alger ETF Trust 3.32 %as of Mar 31, 2026 ↗

Quarter after quarter

Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.

QuarterShareholdersChangeSharesChange
2026Q2766+4767,078,108+6.5 %
2026Q1719-162,971,523+5.5 %
2025Q4720+2059,708,137-2.5 %
2025Q3700-2261,228,423-2.0 %
2025Q2722+862,471,837-1.2 %
2025Q1714-4963,217,302-2.5 %
2024Q4763-1464,810,261-3.6 %
2024Q3777-467,231,656+1.9 %
2024Q2781-4665,957,473+7.9 %
2024Q1827-5561,122,879+2.1 %
2023Q488259,883,539

Institutional managers

987 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.

ManagerSharesValue
BlackRock, Inc.15,974,6012.9B $as of Mar 31, 2026
PRIMECAP MANAGEMENT CO/CA/14,757,6072.7B $as of Mar 31, 2026
FMR LLC12,807,5412.3B $as of Mar 31, 2026
STATE STREET CORP7,167,9221.3B $as of Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC4,342,602793.4M $as of Mar 31, 2026
WELLINGTON MANAGEMENT GROUP LLP2,961,641543M $as of Mar 31, 2026
MORGAN STANLEY2,170,940398M $as of Mar 31, 2026
JPMORGAN CHASE & CO2,016,009378.1M $as of Mar 31, 2026
AQR CAPITAL MANAGEMENT LLC1,923,557346.2M $as of Mar 31, 2026
Invesco Ltd.1,745,255320M $as of Mar 31, 2026
Boston Partners1,700,078311.7M $as of Mar 31, 2026
NORTHERN TRUST CORP1,446,579265.2M $as of Mar 31, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1,377,568252.5M $as of Mar 31, 2026
Legal & General Group Plc1,349,832247.5M $as of Mar 31, 2026
T. Rowe Price Investment Management, Inc.1,160,989212.8K $as of Mar 31, 2026
BANK OF AMERICA CORP /DE/1,156,369212M $as of Mar 31, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1,149,394210.7M $as of Mar 31, 2026
VAN ECK ASSOCIATES CORP1,079,861198K $as of Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP1,079,119197.9M $as of Mar 31, 2026
DEUTSCHE BANK AG\1,063,828195M $as of Mar 31, 2026
GOLDMAN SACHS GROUP INC1,051,094192.7M $as of Mar 31, 2026
Pictet Asset Management Holding SA913,328168.3M $as of Mar 31, 2026
Point72 Asset Management, L.P.809,617148.4M $as of Mar 31, 2026
Alyeska Investment Group, L.P.805,050147.6M $as of Mar 31, 2026
Amundi790,827145M $as of Mar 31, 2026

Declared shareholders of Biogen Inc

There are 2 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.

ShareholderDeclared stakeShares
FMR LLC and 1 other11.30 %16,652,975as of May 29, 2026 · SCHEDULE 13G
Vanguard Capital Management 7.48 %10,989,562as of Mar 31, 2026 · SCHEDULE 13G

Funds holding the debt of Biogen Inc

194 funds declare 386 bond lines of this company. The table shows the 25 largest holdings. The amount is the one the fund files. It is not a share of the debt, because no regulator publishes the amount outstanding in open access.

FundBond linesValue
Core Fixed Income Fund159.5M $as of Apr 30, 2026
VANGUARD TOTAL BOND MARKET INDEX FUND558.9M $as of Mar 31, 2026
VANGUARD TOTAL BOND MARKET II INDEX FUND658.1M $as of Mar 31, 2026
iShares Core U.S. Aggregate Bond ETF726.6M $as of Feb 28, 2026
VANGUARD INTERMEDIATE-TERM CORPORATE BOND INDEX FUND122.8M $as of Feb 28, 2026
iShares iBoxx $ Investment Grade Corporate Bond ETF321.3M $as of Feb 28, 2026
VANGUARD SHORT-TERM CORPORATE BOND INDEX FUND119.8M $as of Feb 28, 2026
DFA Investment Grade Portfolio115.6M $as of Apr 30, 2026
First Trust Core Investment Grade ETF111.5M $as of Apr 30, 2026
iShares Broad USD Investment Grade Corporate Bond ETF711.3M $as of Feb 28, 2026
iShares 1-5 Year Investment Grade Corporate Bond ETF210.3M $as of Feb 28, 2026
Fidelity U.S. Bond Index Fund210.1M $as of Feb 28, 2026
VANGUARD LONG-TERM CORPORATE BOND INDEX FUND39.8M $as of Feb 28, 2026
MFS Limited Maturity Fund19.7M $as of Apr 30, 2026
JPMorgan Core Plus Bond Fund19.3M $as of Feb 28, 2026
Invesco BulletShares 2030 Corporate Bond ETF18.9M $as of Feb 28, 2026
Calvert Short Duration Income Fund18.7M $as of Mar 31, 2026
Bramshill Income Performance Fund18.4M $as of Mar 31, 2026
iShares Investment Grade Systematic Bond ETF28.3M $as of Feb 28, 2026
JPMorgan Core Bond Fund28M $as of Feb 28, 2026
LVIP Franklin Templeton Core Bond Fund17.9M $as of Mar 31, 2026
JPMorgan Short Duration Core Plus Fund17.7M $as of Feb 28, 2026
Touchstone Strategic Trust-Touchstone Flexible Income Fund17.3M $as of Mar 31, 2026
iShares iBonds Dec 2030 Term Corporate ETF17.3M $as of Apr 30, 2026
VANGUARD INTERMEDIATE-TERM BOND INDEX FUND16.9M $as of Mar 31, 2026
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Titelia. "Fund shareholders of Biogen Inc". https://titelia.com/en/stocks/biogen-inc-US09062X1037