Filing Manager
TCG Crossover GP II, LLC
Reporting Manager
Chen Yu
Symbol
ALEC
Shares outstanding
108,695,652 shares
Disclosed Ownership
10,000,000 shares
Ownership
9.2%
Form type
SCHEDULE 13G
Filing time
14 Nov 2025, 16:18:52 UTC
Date of event
22 Oct 2025

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Quoteable Key Fact

"TCG Crossover GP II, LLC disclosed 9.2% ownership in Alector, Inc. Common Stock, par value $0.0001 per share (ALEC) on 22 Oct 2025."

Quick Takeaways

  • TCG Crossover GP II, LLC filed SCHEDULE 13G for Alector, Inc. Common Stock, par value $0.0001 per share (ALEC).
  • Disclosed ownership: 9.2%.
  • Date of event: 22 Oct 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 16:18.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
TCG Crossover GP II, LLC 4.6% 5,000,000 0 5,000,000 /s/ Craig Skaling Craig Skaling, Authorized Signatory
TCG Crossover Fund II, L.P. 4.6% 5,000,000 0 5,000,000 /s/ Craig Skaling Craig Skaling, Authorized Signatory
TCG Crossover GP III, LLC 4.6% 5,000,000 0 5,000,000 /s/ Craig Skaling Craig Skaling, Authorized Signatory
TCG Crossover Fund III, L.P. 4.6% 5,000,000 0 5,000,000 /s/ Craig Skaling Craig Skaling, Authorized Signatory
Chen Yu 9.2% 10,000,000 0 10,000,000 /s/ Craig Skaling Craig Skaling, as Attorney-in-Fact for Chen Yu