0001104659-25-049320.txt : 20250515 0001104659-25-049320.hdr.sgml : 20250515 20250515152455 ACCESSION NUMBER: 0001104659-25-049320 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20250331 FILED AS OF DATE: 20250515 DATE AS OF CHANGE: 20250515 EFFECTIVENESS DATE: 20250515 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Portolan Capital Management, LLC CENTRAL INDEX KEY: 0001350290 ORGANIZATION NAME: EIN: 201926326 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-11602 FILM NUMBER: 25951922 BUSINESS ADDRESS: STREET 1: 2 INTERNATIONAL PLACE, 26TH FLOOR CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 617.753.6400 MAIL ADDRESS: STREET 1: 2 INTERNATIONAL PLACE, 26TH FLOOR CITY: BOSTON STATE: MA ZIP: 02110 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false false false 0001350290 XXXXXXXX 03-31-2025 03-31-2025 false Portolan Capital Management, LLC

2 International Place, 26th Floor Boston MA 02110

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