Portolan Capital Management, LLC - 30 Jun 2025 SCHEDULE 13G/A Report for Quanterix Corp Common Stock, $0.001 par value per share (QTRX)

Filing Manager: Portolan Capital Management, LLC
Reporting Manager: Portolan Capital Management, LLC
Security: Quanterix Corp Common Stock, $0.001 par value per share
Symbol: QTRX
Shares outstanding: 38.8M shares
Disclosed Ownership: 3.63M shares
Ownership: 9.36%
Form type: SCHEDULE 13G/A
Filing time: 13 Aug 2025, 16:10:08 UTC
Date of event: 30 Jun 2025
Previous filing: 15 May 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	9.36%	3.63M	3.63M	0	George McCabe	George McCabe/Manager
George McCabe	9.36%	3.63M	3.63M	0	George McCabe	George McCabe