Portolan Capital Management, LLC - Apr 7, 2025 SCHEDULE 13G Report for Castle Biosciences, Inc. Common Stock, $0.001 par value per share (CSTL)

Filing Manager: Portolan Capital Management, LLC
Reporting Manager: Portolan Capital Management, LLC
Security: Castle Biosciences, Inc. Common Stock, $0.001 par value per share
Symbol: CSTL
Shares outstanding: 28.5M shares
Disclosed Ownership: 1.61M shares
Ownership: 5.65%
Form type: SCHEDULE 13G
Date filed: 4/14/2025, 03:34 PM
Date of event: Apr 7, 2025
SEC: View on sec.gov

Reporting Managers (2)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Portolan Capital Management, LLC	5.65%	1.61M	1.61M	0	George McCabe	George McCabe/Manager
George McCabe	5.65%	1.61M	1.61M	0	George McCabe	George McCabe