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Alector, Inc.

ALEC
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001653087

In the last 90 days, Alector, Inc. insiders filed 0 open-market purchases and 3 sales; 140 institutions reported holding it in 13F filings for Q2 2026, worth $183.4M in total; no superinvestor holds it.

13F holders, Q3 2022

Institutional positions in Alector, Inc. as of Sep 30, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
168
+14 vs. Q2 2022
Shares held
54.6M
+754.7K (+1.4%) vs. Q2 2022
Total value
$516.1M
−$30.7M (−5.6%) vs. Q2 2022
New holders
28
59 more added
Sold out
14
44 more reduced

Compare with Q2 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ALEC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2022: 168 institutions
Q1 2021: 127 institutionsQ2 2021: 138 institutionsQ3 2021: 145 institutionsQ4 2021: 167 institutionsQ1 2022: 166 institutionsQ2 2022: 154 institutionsQ3 2022: 168 institutionsQ4 2022: 155 institutionsQ1 2023: 149 institutionsQ2 2023: 145 institutionsQ3 2023: 149 institutionsQ4 2023: 148 institutionsQ1 2024: 157 institutionsQ2 2024: 160 institutionsQ3 2024: 159 institutionsQ4 2024: 150 institutionsQ1 2025: 141 institutionsQ2 2025: 136 institutionsQ3 2025: 149 institutionsQ4 2025: 131 institutionsQ1 2026: 138 institutionsQ2 2026: 140 institutions
Value heldQ3 2022: $516.1M
Q1 2021: $931.7MQ2 2021: $1.02BQ3 2021: $1.19BQ4 2021: $1.13BQ1 2022: $789.8MQ2 2022: $546.8MQ3 2022: $516.1MQ4 2022: $506.0MQ1 2023: $360.9MQ2 2023: $354.5MQ3 2023: $402.6MQ4 2023: $510.1MQ1 2024: $446.6MQ2 2024: $330.4MQ3 2024: $338.4MQ4 2024: $138.8MQ1 2025: $89.1MQ2 2025: $98.7MQ3 2025: $221.2MQ4 2025: $131.5MQ1 2026: $190.0MQ2 2026: $183.4M
Institutions holding ALEC and their total value by quarter
QuarterHoldersValue
Q2 2026140$183.4M
Q1 2026138$190.0M
Q4 2025131$131.5M
Q3 2025149$221.2M
Q2 2025136$98.7M
Q1 2025141$89.1M
Q4 2024150$138.8M
Q3 2024159$338.4M
Q2 2024160$330.4M
Q1 2024157$446.6M
Q4 2023148$510.1M
Q3 2023149$402.6M
Q2 2023145$354.5M
Q1 2023149$360.9M
Q4 2022155$506.0M
Q3 2022168$516.1M
Q2 2022154$546.8M
Q1 2022166$789.8M
Q4 2021167$1.13B
Q3 2021145$1.19B
Q2 2021138$1.02B
Q1 2021127$931.7M

Institutions, Q3 2022

Shares, value and share of portfolio for each institution holding Alector, Inc.; share changes are against Q2 2022.

Institutions holding ALEC in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Salem Investment Counselors Inc50$00.00%00.0%Unchanged
HighMark Wealth Management LLC50$00.00%00.0%Unchanged
Parallel Advisors, LLC15$00.00%−32−68.1%Reduced
Investors Research Corp40$00.00%00.0%Unchanged
Covestor Ltd12$00.00%−3−20.0%Reduced
Nisa Investment Advisors, LLC63$1.00K0.00%−337−84.3%Reduced
Washington Trust Advisors, Inc.156$1.00K0.00%00.0%Unchanged
National Bank of Canada200$2.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC194$2.00K0.00%+11+6.0%Added
Signaturefd, LLC238$2.00K0.00%+238New
TCI Wealth Advisors, Inc.369$3.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.277$3.00K0.00%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC300$3.00K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec415$3.93K0.00%00.0%Unchanged
Beaird Harris Wealth Management, LLC473$4.00K0.00%00.0%Unchanged
CWM, LLC500$5.00K0.00%00.0%Unchanged
China Universal Asset Management Co., Ltd.773$7.00K0.00%+773New
Cutler Group LP1,000$9.00K0.00%−420−29.6%Reduced
Group One Trading, L.P.1,298$12.0K0.00%−600−31.6%Reduced
Macquarie Group Ltd457$13.0K0.00%−948−67.5%Reduced
Quantbot Technologies LP1,700$16.0K0.00%−9,062−84.2%Reduced
US Bancorp1,691$16.0K0.00%+149+9.7%Added
Royal Bank of Canada1,899$18.0K0.00%+406+27.2%Added
FourThought Financial, LLC1,962$19.0K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.2,720$25.0K0.00%−472−14.8%Reduced
Aquatic Capital Management LLC2,600$25.0K0.00%+2,600New
Great West Life Assurance Co2,855$27.0K0.00%00.0%Unchanged
Wells Fargo & Company3,685$35.0K0.00%−3,401−48.0%Reduced
Metropolitan Life Insurance Co3,857$36.5K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.4,559$43.0K0.00%00.0%Unchanged
State of Wyoming4,781$45.0K0.02%+1,992+71.4%Added
Amundi4,946$46.0K0.00%+4,946New
Point72 Hong Kong Ltd6,847$65.0K0.00%+6,847New
Lazard Asset Management LLC7,104$67.0K0.00%+873+14.0%Added
Public Employees Retirement Association of Colorado7,914$75.0K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)8,124$77.0K0.00%00.0%Unchanged
BKD Wealth Advisors, LLC10,000$95.0K0.00%00.0%Unchanged
Amalgamated Bank10,008$95.0K0.00%+159+1.6%Added
Texas Yale Capital Corp.10,000$95.0K0.01%+10,000New
Utah Retirement Systems10,286$97.0K0.00%00.0%Unchanged
Vident Investment Advisory, LLC10,252$97.0K0.00%+10,252New
Janus Henderson Group PLC10,560$100.0K0.00%−106−1.0%Reduced
Victory Capital Management Inc11,631$110.0K0.00%+11,631New
E Fund Management Co., Ltd.12,866$122.0K0.01%−3,506−21.4%Reduced
Virtus ETF Advisers LLC12,995$123.0K0.05%+97+0.8%Added
ProShare Advisors LLC13,802$130.0K0.00%+404+3.0%Added
Mercer Global Advisors Inc13,945$132.0K0.00%+13,945New
Gsa Capital Partners LLP13,995$132.0K0.02%+13,995New
Schonfeld Strategic Advisors LLC14,351$136.0K0.00%+14,351New
HSBC Holdings PLC13,937$137.0K0.00%00.0%Unchanged
Arizona State Retirement System14,542$138.0K0.00%+91+0.6%Added
Ensign Peak Advisors, Inc15,190$144.0K0.00%00.0%Unchanged
Diversified Trust Co16,818$159.0K0.01%−1,660−9.0%Reduced
Teacher Retirement System of Texas17,540$166.0K0.00%+17,540New
PDT Partners, LLC17,712$168.0K0.03%−17,448−49.6%Reduced
Dynamic Technology Lab Private Ltd18,162$172.0K0.02%+18,162New
Principal Financial Group Inc18,540$176.0K0.00%−315−1.7%Reduced
Erste Asset Management GmbH19,000$179.6K0.00%00.0%Unchanged
Prudential Financial Inc20,582$195.0K0.00%+280+1.4%Added
Cornercap Investment Counsel Inc20,867$197.0K0.04%+6,954+50.0%Added
Allspring Global Investments Holdings, LLC20,958$198.0K0.00%−2,083−9.0%Reduced
Stifel Financial Corp22,267$211.0K0.00%+750+3.5%Added
Robeco Institutional Asset Management B.V.22,341$212.0K0.00%+22,341New
Tower Research Capital LLC (TRC)23,893$226.0K0.00%+13,433+128.4%Added
Voya Investment Management LLC24,437$231.2K0.00%+1,571+6.9%Added
DekaBank Deutsche Girozentrale25,100$233.0K0.00%00.0%Unchanged
Gilder Gagnon Howe & Co LLC24,703$234.0K0.00%−114,690−82.3%Reduced
State Board of Administration of Florida Retirement System25,390$240.0K0.00%00.0%Unchanged
Algert Global LLC27,539$261.0K0.02%−7,723−21.9%Reduced
American International Group, Inc.29,524$279.0K0.00%+417+1.4%Added
Wellington Management Group LLP30,567$290.0K0.00%−1,202−3.8%Reduced
Invesco Ltd.31,018$294.0K0.00%+1,526+5.2%Added
MetLife Investment Management31,825$301.1K0.00%00.0%Unchanged
Envestnet Asset Management Inc32,736$310.0K0.00%+32,736New
TD Asset Management Inc32,969$312.0K0.00%−6,900−17.3%Reduced
Jupiter Asset Management Ltd33,122$313.0K0.00%+33,122New
Jane Street Group, LLC34,223$324.0K0.00%+19,510+132.6%Added
NinePointTwo Capital35,042$331.0K0.13%−8,772−20.0%Reduced
Cubist Systematic Strategies, LLC35,311$334.0K0.00%−54,134−60.5%Reduced
UBS Group AG35,708$338.0K0.00%−46,500−56.6%Reduced
Tudor Investment Corp Et Al36,879$349.0K0.01%+36,879New
Deutsche Bank AG37,849$358.0K0.00%−4,360−10.3%Reduced
TrimTabs Asset Management, LLC38,308$362.0K0.25%+38,308New
Mirae Asset Global Investments Co., Ltd.38,671$365.0K0.00%+7,986+26.0%Added
SG Americas Securities, LLC40,388$382.0K0.01%+2,356+6.2%Added
HRT Financial LP40,404$382.0K0.00%+40,404New
New York State Common Retirement Fund41,542$393.0K0.00%+118+0.3%Added
Advisor Group Holdings, Inc.44,305$419.0K0.00%+43,656+6,726.7%Added
Credit Suisse AG44,902$425.0K0.00%−183−0.4%Reduced
Alps Advisors Inc45,055$426.0K0.00%−3,786−7.8%Reduced
Graham Capital Management, L.P.45,580$431.0K0.02%+45,580New
SEI Investments Co48,779$461.0K0.00%+48,779New
Truist Financial Corp50,479$477.0K0.00%+1,233+2.5%Added
Legal & General Group Plc51,748$490.0K0.00%+1,408+2.8%Added
Dark Forest Capital Management LP62,368$590.0K0.11%+62,368New
Capital Impact Advisors, LLC79,338$624.0K0.62%+6,632+9.1%Added
UBS Asset Management Americas Inc69,376$656.3K0.00%00.0%Unchanged
California State Teachers Retirement System70,592$668.0K0.00%−1,544−2.1%Reduced
Man Group plc71,628$678.0K0.00%––
STRS Ohio72,900$689.0K0.00%+4,100+6.0%Added