OQROGet OQRO Pro
Insider trade

Alector (ALEC)CEO sold ~$117K

Arnon Rosenthal, CEO at Alector, sold ~$117K of Alector shares.

~$117K
Approx. value · 104K sh @ $1.12
2.42M
Holds after · shares reported
Traded
Dec 3, 2025
Filed
Dec 4, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Oct 20, 2025Company filing · Form 8-K · Results, RestructuringAnnounced job cuts, closures or a restructuring, and changed a top executive or board member (and 2 more items)“On October 20, 2025, Sara Kenkare-Mitra, Ph.D., President and Head of Research and Development of the Company, informed the Company of her resignation from her position effective December 22, 2025, to pursue other professional opportunities.”
  2. Nov 6, 2025Company filing · Form 8-K · ResultsReported its results
  3. Dec 3, 2025 · this disclosureInsiderCEO sold ~$117K of ALEC shares in the open market

What came next

  1. Dec 3, 2025Insider · 3 peopleInsiders: 3 sales (~$97K)
  2. Dec 5, 2025InsiderOfficer sold ~$5.8K of ALEC shares in the open market
  3. Dec 10, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On December 10, 2025, the board of directors of Alector, Inc. (“Alector”) appointed Neil Berkley as Alector’s Chief Financial Officer. Mr. Berkley had been serving as Interim Chief Financial Officer of Alector since June 2025.”
  4. Feb 25, 2026Company filing · Form 8-K · ResultsReported its results
  5. Feb 26, 2026InsiderOfficer sold ~$10K of ALEC shares in the open market
  6. Mar 2, 2026Insider · 3 peopleInsiders: 3 sales (~$254K)
  7. Mar 3, 2026InsiderOfficer sold ~$7K of ALEC shares in the open market
  8. Mar 10, 2026InsiderOfficer sold ~$2.6K of ALEC shares in the open market
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Alector

For Alector, OQRO holds 5 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ALEC page.

Other recent filings by Arnon Rosenthal, Chief Executive Officer

The full history of Arnon Rosenthal, Chief Executive Officer is on the profile page.

How this filing works

Other disclosures at Alector

Everything OQRO holds on this company is on its ALEC page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

Unlock OQRO ProAlready have an account? Log in

OQRO Pro is a paid subscription. You see the price before you pay

OQRO describes public disclosures and context calculated from them. It does not give personalized advice and does not recommend any transaction. How OQRO treats data