ALEC 8-K: SEC filing

Alector, Inc.

Filed with the SEC on Nov 5, 2026 · accession 0001193125-26-449813

ALEC filed a 8-K (current report) with the SEC on Nov 5, 2026. A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The stock moved -8.3% by the first close after the filing.

Summary of the filing

Alector, Inc. announced its financial results for the quarter ended September 30, 2026, via a press release furnished as Exhibit 99.1 to its Form 8-K.

For details, click here →How to read a 8-K →

Key details

RegistrantAlector, Inc.

Co-founder and chief executive officerArnon Rosenthal, Ph.D.

How ALEC stock reacted

Close before

$2.28

Nov 4, 2026

First close after

-8.33%

$2.09

5 trading days

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Since filing

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Frequently asked questions

What did ALEC file with the SEC on Nov 5, 2026?

ALEC filed a 8-K (SEC filing). Alector, Inc. announced its financial results for the quarter ended September 30, 2026, via a press release furnished as Exhibit 99.1 to its Form 8-K.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

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 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did ALEC stock react to this filing?

ALEC closed at $2.28 before the filing and $2.09 on Nov 5, 2026 (-8.33%).

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