Vestal Point Capital, LP - 31 Dec 2025 SCHEDULE 13G Report for Day One Biopharmaceuticals, Inc. Common Stock, par value $0.0001 per share (DAWN)

Filing Manager
Vestal Point Capital, LP
Reporting Manager
Vestal Point Capital, LP
Security
Day One Biopharmaceuticals, Inc. Common Stock, par value $0.0001 per share
Symbol
DAWN
Shares outstanding
101,960,784 shares
Disclosed Ownership
5,200,000 shares
Ownership
5.1%
Form type
SCHEDULE 13G
Filing time
17 Feb 2026, 16:06:45 UTC
Date of event
31 Dec 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Vestal Point Capital, LP disclosed 5.1% ownership in Day One Biopharmaceuticals, Inc. Common Stock, par value $0.0001 per share (DAWN) on 31 Dec 2025."

Quick Takeaways

  • Vestal Point Capital, LP filed SCHEDULE 13G for Day One Biopharmaceuticals, Inc. Common Stock, par value $0.0001 per share (DAWN).
  • Disclosed ownership: 5.1%.
  • Date of event: 31 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 17 Feb 2026, 16:06.

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.

Official SEC Source

Backed by Schedule 13D/13G

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

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Vestal Point Capital, LP 5.1% 5,200,000 0 5,200,000 /s/ Ryan Wilder By: Vestal Point Capital, LLC, General Partner, By: Ryan Wilder, Chief Investment Officer and Managing Partner
Ryan Wilder 5.1% 5,200,000 0 5,200,000 /s/ Ryan Wilder Ryan Wilder, Individually

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