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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.

Q2 2021 vs. Q1 2021

How the institutions holding Alector, Inc. changed between Q1 2021 and Q2 2021.

All holders in Q2 2021All holders in Q1 2021

13F holders of ALEC: Q1 2021 compared with Q2 2021
MeasureQ1 2021Q2 2021Change
Holders127138+11
Shares46.3M49.2M+2.86M (+6.2%)
Value$931.7M$1.02B+$92.9M (+10.0%)

New holders (28)

Institutions that held Alector, Inc. at the end of Q2 2021 but not at the end of Q1 2021.

Institutions new to ALEC in Q2 2021
InstitutionSharesValue% of portfolio
Bridger Management, LLC203,900$4.25M0.40%
Schroder Investment Management Group148,711$3.10M0.00%
Voloridge Investment Management, LLC107,297$2.23M0.02%
First Trust Advisors LP58,304$1.21M0.00%
Belvedere Trading LLC24,711$804.0K0.34%
D. E. Shaw & Co., Inc.38,077$793.0K0.00%
Gsa Capital Partners LLP27,027$563.0K0.06%
Schonfeld Strategic Advisors LLC23,900$497.0K0.01%
First Manhattan Co22,610$470.0K0.00%
Blueshift Asset Management, LLC18,675$389.0K0.02%
Thrivent Financial for Lutherans18,587$387.0K0.00%
Handelsbanken Fonder AB16,800$350.0K0.00%
Cubist Systematic Strategies, LLC14,954$311.0K0.00%
Tudor Investment Corp Et Al11,445$238.0K0.00%
Amalgamated Bank10,879$227.0K0.00%
Vident Investment Advisory, LLC10,124$211.0K0.01%
Trexquant Investment LP9,901$206.0K0.02%
Mirae Asset Global Investments Co., Ltd.9,638$201.0K0.00%
Meeder Asset Management Inc3,854$80.0K0.00%
Nisa Investment Advisors, LLC2,450$51.0K0.00%
Point72 Hong Kong Ltd1,253$26.0K0.00%
Exane Derivatives117$4.37K0.00%
Aspire Private Capital, LLC200$4.00K0.00%
Advisory Services Network, LLC124$3.00K0.00%
The PNC Financial Services Group, Inc.56$1.00K0.00%
Salem Investment Counselors Inc50$1.00K0.00%
Solstein Capital, LLC18$00.00%
Dark Forest Capital Management LP7$00.00%

Sold out (17)

Institutions that held Alector, Inc. at the end of Q1 2021 and filed for Q2 2021 without it.