Titelia

Fund shareholders of Alector Inc

ISIN US0144421072 · United States · LEI 549300Z8RQOIY1JMHC25

Fund shareholders
132
Of which ETFs
17 115 other funds
Value held
40.3M $
Share of capital
15.9 % of 111.7M shares on Jul 31, 2026
FundSharesValueWeight in fundShare of capital
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS 2,541,3225.5M $0.00 %2.28 %as of Mar 31, 2026
Select Biotechnology Portfolio Fidelity Select Portfolios 2,221,1045.4M $0.10 %1.99 %as of Feb 28, 2026
iShares Russell 2000 ETF iShares Trust 2,171,8524.7M $0.01 %1.95 %as of Mar 31, 2026
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS 1,037,5272.2M $0.00 %0.93 %as of Mar 31, 2026
Fidelity Small Cap Index Fund Fidelity Salem Street Trust 895,8832.1M $0.01 %0.80 %as of Apr 30, 2026
iShares Russell 2000 Value ETF iShares Trust 714,4531.5M $0.01 %0.64 %as of Mar 31, 2026
BlackRock Advantage Small Cap Core Fund BlackRock Funds 643,3881.6M $0.03 %0.58 %as of Feb 27, 2026
VANGUARD STRATEGIC SMALL-CAP EQUITY FUND VANGUARD HORIZON FUNDS 628,6271.4M $0.06 %0.56 %as of Mar 31, 2026
SMALL COMPANY GROWTH PORTFOLIO VANGUARD VARIABLE INSURANCE FUNDS 615,9231.3M $0.10 %0.55 %as of Mar 31, 2026
VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND 595,3411.4M $0.01 %0.53 %as of Apr 30, 2026
Fidelity Extended Market Index Fund Fidelity Concord Street Trust 491,8361.2M $0.00 %0.44 %as of Feb 28, 2026
Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST 448,8901.1M $0.01 %0.40 %as of Feb 28, 2026
VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS 396,268962.9K $0.01 %0.35 %as of Feb 28, 2026
Multi-Manager Small Cap Equity Strategies Fund COLUMBIA FUNDS SERIES TRUST I 293,202712.5K $0.06 %0.26 %as of Feb 28, 2026
VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND 241,487586.8K $0.00 %0.22 %as of Feb 28, 2026
iShares Micro-Cap ETF iShares Trust 228,652491.6K $0.04 %0.20 %as of Mar 31, 2026
Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST 199,926473.8K $0.01 %0.18 %as of Apr 30, 2026
SMALL CAP EQUITY FUND GuideStone Funds 194,219417.6K $0.05 %0.17 %as of Mar 31, 2026
Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust 164,626390.2K $0.01 %0.15 %as of Apr 30, 2026
Fidelity Total Market Index Fund Fidelity Concord Street Trust 163,064396.2K $0.00 %0.15 %as of Feb 28, 2026
NVIT Small Cap Value Fund Nationwide Variable Insurance Trust 152,582328.1K $0.17 %0.14 %as of Mar 31, 2026
NVIT Multi-Manager Small Company Fund Nationwide Variable Insurance Trust 149,514321.5K $0.09 %0.13 %as of Mar 31, 2026
Ultra-Small Company Market Fund Bridgeway Funds, Inc. 142,500306.4K $0.25 %0.13 %as of Mar 31, 2026
Clearwater Select Equity Fund Clearwater Investment Trust 137,679296K $0.07 %0.12 %as of Mar 31, 2026
Fidelity Series Total Market Index Fund Fidelity Concord Street Trust 131,534319.6K $0.00 %0.12 %as of Feb 28, 2026
Master Small Cap Index Series Quantitative Master Series LLC 130,452280.5K $0.01 %0.12 %as of Mar 31, 2026
Nuveen Small Cap Blend Index Fund TIAA-CREF Funds 108,228256.5K $0.01 %0.10 %as of Apr 30, 2026
EQ/2000 Managed Volatility Portfolio EQ Advisors Trust 104,277224.2K $0.01 %0.09 %as of Mar 31, 2026
Fidelity Small Cap Value Index Fund Fidelity Salem Street Trust 102,930221.3K $0.01 %0.09 %as of Mar 31, 2026
BlackRock Advantage Small Cap Growth Fund BlackRock Funds 95,036204.3K $0.03 %0.09 %as of Mar 31, 2026
PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST 73,610174.5K $0.07 %0.07 %as of Apr 30, 2026
Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust 61,781150.1K $0.00 %0.06 %as of Feb 28, 2026
Dimensional U.S. Small Cap ETF Dimensional ETF Trust 59,910142K $0.00 %0.05 %as of Apr 30, 2026
LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST 59,889128.8K $0.01 %0.05 %as of Mar 31, 2026
VANGUARD RUSSELL 2000 VALUE INDEX FUND VANGUARD SCOTTSDALE FUNDS 54,436132.3K $0.01 %0.05 %as of Feb 28, 2026
iShares Russell 2000 Growth ETF iShares Trust 52,882113.7K $0.00 %0.05 %as of Mar 31, 2026
VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS 52,271112.4K $0.00 %0.05 %as of Mar 31, 2026
Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST 50,000118.5K $0.00 %0.04 %as of Apr 30, 2026
Invesco NASDAQ Future Gen 200 ETF Invesco Exchange-Traded Fund Trust II 49,766120.9K $0.86 %0.04 %as of Feb 28, 2026
EQ/Small Company Index Portfolio EQ Advisors Trust 49,570106.6K $0.01 %0.04 %as of Mar 31, 2026
VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS 47,602102.3K $0.00 %0.04 %as of Mar 31, 2026
Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust 46,002109K $0.00 %0.04 %as of Apr 30, 2026
Strategic Advisers U.S. Total Stock Fund Fidelity Rutland Square Trust II 45,000109.4K $0.00 %0.04 %as of Feb 28, 2026
Small Cap Index Fund Northern Funds 44,62996K $0.01 %0.04 %as of Mar 31, 2026
VANGUARD GROWTH AND INCOME FUND VANGUARD QUANTITATIVE FUNDS 44,30095.2K $0.00 %0.04 %as of Mar 31, 2026
Nuveen Equity Index Fund TIAA-CREF Funds 42,752101.3K $0.00 %0.04 %as of Apr 30, 2026
Bridge Builder Small/Mid Cap Value Fund Bridge Builder Trust 39,92585.8K $0.00 %0.04 %as of Mar 31, 2026
Small Cap Index Fund VALIC Co I 39,56596.1K $0.01 %0.04 %as of Feb 28, 2026
Global X Russell 2000 ETF GLOBAL X FUNDS 39,42193.4K $0.01 %0.04 %as of Apr 30, 2026
EQ/AB Small Cap Growth Portfolio EQ Advisors Trust 36,88079.3K $0.00 %0.03 %as of Mar 31, 2026
Diversified Equity Master Portfolio Master Investment Portfolio 35,99677.4K $0.00 %0.03 %as of Mar 31, 2026
Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust 33,63779.7K $0.00 %0.03 %as of Apr 30, 2026
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST 30,93566.5K $0.00 %0.03 %as of Mar 31, 2026
MetLife Russell 2000 Index Portfolio Brighthouse Funds Trust II 29,97064.4K $0.01 %0.03 %as of Mar 31, 2026
TIFF MULTI-ASSET FUND TIFF Investment Program 28,29160.8K $0.00 %0.03 %as of Mar 31, 2026
Goldman Sachs Absolute Return Tracker Fund GOLDMAN SACHS TRUST 24,91053.6K $0.00 %0.02 %as of Mar 31, 2026
ATM Small Cap Managed Volatility Portfolio EQ Advisors Trust 24,14751.9K $0.01 %0.02 %as of Mar 31, 2026
Small-Cap Index Portfolio PACIFIC SELECT FUND 18,77640.4K $0.01 %0.02 %as of Mar 31, 2026
NVIT Small Cap Index Fund Nationwide Variable Insurance Trust 18,76640.3K $0.01 %0.02 %as of Mar 31, 2026
U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO 17,40441.2K $0.00 %0.02 %as of Apr 30, 2026
Small Cap Index Trust John Hancock Variable Insurance Trust 17,12536.8K $0.01 %0.02 %as of Mar 31, 2026
JNL/DFA U.S. Small Cap Fund JNL Series Trust 17,08936.7K $0.01 %0.02 %as of Mar 31, 2026
iShares Russell 3000 ETF iShares Trust 16,34635.1K $0.00 %0.01 %as of Mar 31, 2026
1290 VT Micro Cap Portfolio EQ Advisors Trust 15,24032.8K $0.02 %0.01 %as of Mar 31, 2026
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Goldman Sachs Variable Insurance Trust 14,81231.8K $0.02 %0.01 %as of Mar 31, 2026
AST Small-Cap Equity Portfolio Advanced Series Trust 14,33030.8K $0.00 %0.01 %as of Mar 31, 2026
Fidelity Flex Small Cap Index Fund Fidelity Salem Street Trust 14,01633.2K $0.01 %0.01 %as of Apr 30, 2026
Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds 13,10028.2K $0.00 %0.01 %as of Mar 31, 2026
SIIT EXTENDED MARKET INDEX FUND SEI INSTITUTIONAL INVESTMENTS TRUST 13,00031.6K $0.00 %0.01 %as of Feb 28, 2026
DWS Small Cap Index VIP DEUTSCHE DWS INVESTMENTS VIT FUNDS 12,59827.1K $0.01 %0.01 %as of Mar 31, 2026
1290 VT Small Cap Value Portfolio EQ Advisors Trust 12,32926.5K $0.01 %0.01 %as of Mar 31, 2026
U.S. CORE EQUITY 1 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC 11,59227.5K $0.00 %0.01 %as of Apr 30, 2026
Small Cap Core Fund Northern Funds 10,68723K $0.01 %0.01 %as of Mar 31, 2026
Voya RussellTM Small Cap Index Portfolio Voya VARIABLE PORTFOLIOS INC 10,03621.6K $0.01 %0.01 %as of Mar 31, 2026
iShares Russell Small/Mid-Cap Index Fund BlackRock Funds 9,38722.2K $0.00 %0.01 %as of Apr 30, 2026
BlackRock Small Cap Index V.I. Fund BlackRock Variable Series Funds, Inc. 9,17119.7K $0.01 %0.01 %as of Mar 31, 2026
Victory Extended Market Index Fund Victory Portfolios III 8,56720.3K $0.00 %0.01 %as of Apr 30, 2026
Nationwide Small Cap Index Fund Nationwide Mutual Funds 8,49420.1K $0.01 %0.01 %as of Apr 30, 2026
CVT Russell 2000 Small Cap Index Portfolio Calvert Variable Trust, Inc. 8,17517.6K $0.01 %0.01 %as of Mar 31, 2026
SA Small Cap Index Portfolio SUNAMERICA SERIES TRUST 8,09719.2K $0.01 %0.01 %as of Apr 30, 2026
T. Rowe Price Small-Cap Index Fund T. ROWE PRICE INDEX TRUST, INC. 7,95717.1K $0.00 %0.01 %as of Mar 31, 2026
Strategic Equity Allocation Trust John Hancock Variable Insurance Trust 6,68014.4K $0.00 %0.01 %as of Mar 31, 2026
Venerable Small Cap Index Fund Venerable Variable Insurance Trust 6,60214.2K $0.01 %0.01 %as of Mar 31, 2026
VIP Extended Market Index Portfolio Variable Insurance Products Fund II 6,26513.5K $0.00 %0.01 %as of Mar 31, 2026
VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS 5,93314.4K $0.00 %0.01 %as of Feb 28, 2026
Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust 5,84612.6K $0.00 %0.01 %as of Mar 31, 2026
PD Small-Cap Value Index Portfolio PACIFIC SELECT FUND 5,46811.8K $0.01 %0.00 %as of Mar 31, 2026
Voya VACS Index Series SC Portfolio Voya VARIABLE PORTFOLIOS INC 5,44211.7K $0.01 %0.00 %as of Mar 31, 2026
LVIP Dimensional U.S. Core Equity 1 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST 5,36211.5K $0.00 %0.00 %as of Mar 31, 2026
JNL/DFA U.S. Core Equity Fund JNL Series Trust 5,36111.5K $0.00 %0.00 %as of Mar 31, 2026
Nationwide Fundamental All Cap Equity Portfolio Nationwide Mutual Funds 5,34312.7K $0.00 %0.00 %as of Apr 30, 2026
VANGUARD RUSSELL 3000 INDEX FUND VANGUARD SCOTTSDALE FUNDS 5,22312.7K $0.00 %0.00 %as of Feb 28, 2026
U.S. Sustainability Core 1 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC 5,04512K $0.00 %0.00 %as of Apr 30, 2026
ProShares Ultra Russell2000 ProShares Trust 4,97012.1K $0.00 %0.00 %as of Feb 28, 2026
ProShares UltraPro Russell2000 ProShares Trust 4,95412K $0.00 %0.00 %as of Feb 28, 2026
iShares Neuroscience and Healthcare ETF iShares Trust 4,1089.7K $0.19 %0.00 %as of Apr 30, 2026
U.S. Small Cap Equity Fund RUSSELL INVESTMENT FUNDS 4,0098.6K $0.00 %0.00 %as of Mar 31, 2026
Dimensional US Sustainability Core 1 ETF Dimensional ETF Trust 3,8679.2K $0.00 %0.00 %as of Apr 30, 2026
Small-Cap Equity Portfolio PACIFIC SELECT FUND 3,7758.1K $0.00 %0.00 %as of Mar 31, 2026
ProShares Russell 2000 High Income ETF ProShares Trust 3,4788.5K $0.01 %0.00 %as of Feb 28, 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 counts shares; this one measures what the company weighs inside each fund.

FundWeight in fund
Invesco NASDAQ Future Gen 200 ETF Invesco Exchange-Traded Fund Trust II 0.86 %as of Feb 28, 2026
Ultra-Small Company Market Fund Bridgeway Funds, Inc. 0.25 %as of Mar 31, 2026
iShares Neuroscience and Healthcare ETF iShares Trust 0.19 %as of Apr 30, 2026
NVIT Small Cap Value Fund Nationwide Variable Insurance Trust 0.17 %as of Mar 31, 2026
Select Biotechnology Portfolio Fidelity Select Portfolios 0.10 %as of Feb 28, 2026
SMALL COMPANY GROWTH PORTFOLIO VANGUARD VARIABLE INSURANCE FUNDS 0.10 %as of Mar 31, 2026
NVIT Multi-Manager Small Company Fund Nationwide Variable Insurance Trust 0.09 %as of Mar 31, 2026
PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST 0.07 %as of Apr 30, 2026
Clearwater Select Equity Fund Clearwater Investment Trust 0.07 %as of Mar 31, 2026
Multi-Manager Small Cap Equity Strategies Fund COLUMBIA FUNDS SERIES TRUST I 0.06 %as of Feb 28, 2026

Quarter after quarter

Each SEC quarterly data set, newest first. The change is read against the quarter before it.

QuarterShareholdersChangeSharesChange
2026Q2132+217,786,654+5.7 %
2026Q1130-816,832,434-32.8 %
2025Q4138025,039,541-9.0 %
2025Q3138-227,519,457+11.0 %
2025Q2140-1124,797,068-1.0 %
2025Q1151-2525,042,052-11.4 %
2024Q4176+128,248,743+5.9 %
2024Q3175-326,667,510-3.9 %
2024Q2178-227,762,635+9.6 %
2024Q1180-1125,331,388+8.8 %
2023Q419123,282,525

Institutional managers

133 managers declare this company to the SEC (Form 13F); the 25 largest follow.

ManagerSharesValue
TCG Crossover Management, LLC10,000,00021.5M $as of Mar 31, 2026
BlackRock, Inc.7,741,24516.6M $as of Mar 31, 2026
ACADIAN ASSET MANAGEMENT LLC4,038,7858.7K $as of Mar 31, 2026
Foresite Capital Management IV, LLC3,887,2008.4M $as of Mar 31, 2026
Merck & Co., Inc.3,545,7197.6M $as of Mar 31, 2026
D. E. Shaw & Co., Inc.3,332,8357.2M $as of Mar 31, 2026
683 Capital Management, LLC3,200,0006.9M $as of Mar 31, 2026
Balyasny Asset Management L.P.2,935,2536.3M $as of Mar 31, 2026
Nantahala Capital Management, LLC2,815,9836.1M $as of Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC2,286,2184.9M $as of Mar 31, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC2,154,3614.6M $as of Mar 31, 2026
Spruce Street Capital LP2,101,0684.5M $as of Mar 31, 2026
Ikarian Capital, LLC2,082,6064.5M $as of Mar 31, 2026
Kynam Capital Management, LP2,000,0004.3M $as of Mar 31, 2026
MILLENNIUM MANAGEMENT LLC1,979,2264.3M $as of Mar 31, 2026
STATE STREET CORP1,865,5264M $as of Mar 31, 2026
FMR LLC1,796,1043.9M $as of Mar 31, 2026
MEDICI CAPITAL LLC1,652,5203.6M $as of Mar 31, 2026
Eversept Partners, LP1,351,1062.9M $as of Mar 31, 2026
Euclidean Capital LLC1,307,8582.8M $as of Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC1,287,6912.8M $as of Mar 31, 2026
TWO SIGMA INVESTMENTS, LP1,279,3062.8M $as of Mar 31, 2026
DEUTSCHE BANK AG\1,092,9032.3M $as of Mar 31, 2026
DEERFIELD MANAGEMENT COMPANY, L.P.1,055,1922.3M $as of Mar 31, 2026
ADAR1 Capital Management, LLC1,050,0002.3M $as of Mar 31, 2026

Declared shareholders of Alector Inc

2 beneficial ownership filings. These stakes do not add up: an asset manager filing aggregates its own funds, already counted above.

ShareholderDeclared stakeShares
BlackRock, Inc. 5.20 %5,784,214as of Mar 31, 2026 · SCHEDULE 13G
Polaris Venture Partners VI, L.P. and 10 others4.70 %5,173,499as of Mar 31, 2026 · SCHEDULE 13G
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Titelia. "Fund shareholders of Alector Inc". https://titelia.com/en/stocks/alector-inc-US0144421072