Alector (ALEC)RTW Investments, LP opened a new position $20.7M

6.99M

Shares reported

0.25%

Disclosed portfolio weight

$20.7M

Reported value

Holdings as of

Sep 30, 2025

Filed

Nov 14, 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

What came next

1. Dec 3, 2025Insider · 4 peopleInsiders: 4 sales (~$214K)
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

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

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.

How this filing works

• SEC Form 13F

Other disclosures at Alector

• SEC Form 4Sep 5, 2026
• SEC Form 4Sep 5, 2026
• SEC Form 4Sep 5, 2026
• SEC Form 4Sep 5, 2026
• SEC Form 4Sep 5, 2026
• SEC Form 4Jun 4, 2026

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