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ALEC SCHEDULE 13G: SEC filing

A Schedule 13G was

Filed with the SEC on · accession 0001172661-26-004680

ALEC filed a SCHEDULE 13G (schedule 13g) with the SEC on Oct 23, 2026. A Schedule 13G was filed regarding Alector, Inc. (ALEC), indicating a passive ownership position by an institutional or other holder. The stock moved +0.0% by the first close after the filing.

Summary of the filing

A Schedule 13G was filed regarding Alector, Inc. (ALEC), indicating a passive ownership position by an institutional or other holder. The filing text provided contains only the EDGAR directory listing and does not include the substantive ownership details.

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Key details

IssuerAlector, Inc.

How ALEC stock reacted

Close before

$1.83

Oct 22, 2026

First close after

+0.00%

$1.83

5 trading days

+22.40%

$2.24

Since filing

+25.14%

$2.29

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Frequently asked questions

What did ALEC file with the SEC on Oct 23, 2026?

ALEC filed a SCHEDULE 13G (SEC filing). A Schedule 13G was filed regarding Alector, Inc. (ALEC), indicating a passive ownership position by an institutional or other holder. The filing text provided contains only the EDGAR directory listing and does not include the substantive ownership details.

How do I read a SCHEDULE 13G?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).

How did ALEC stock react to this filing?

ALEC closed at $1.83 before the filing and $1.83 on Oct 23, 2026 (+0.00%). Five trading days later: $2.24 (+22.40%).

Other ALEC SEC filings

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