Firm profile

PORTOLAN CAPITAL MANAGEMENT, LLC

BOSTON, MACRD 157542Latest ADV April 15, 2026

Portolan Capital Management, LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Boston, MA. Its latest Form ADV filing, dated April 15, 2026, reports $2.0B in regulatory assets under management, 12 employees, 1 office, and 20 accounts.

Assets Under Management
$2.0B
Employees
12
Offices
1 office
Total Clients
19
Primary office
BOSTON, MA
TWO INTERNATIONAL PLACE, SUITE 2630, BOSTON, MA, United States
ADV Item 1F location record

Contact and digital presence

ADV profile links

Leadership

4 roles identified
CCOBetsy H. Flaherty
CFOChristopher S. Nardone
COOChristopher S. Nardone

Advisory services offered

4 types reported
Portfolio management for businesses
Portfolio management for individuals and small businesses
Portfolio management for investment companies

Fee models offered

2 types reported
Asset based fees
Performance-based fees
Sources checked May 16, 2026

Client Coverage Demographics

Top client segmentHNWI represent 73.7% of total clients.
Top client categories% of clientsClients
1
HNWI
73.7%
14
2
Pooled Investment Vehicles
21.1%
4
3
Investment Cos.
5.3%
1
Categories with <5 clients
Charitable Organizations<5 clients

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$2.0Bas of April 15, 2026
Discretionary100.0%
$2.0B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$2.0B
Total Accounts20
10Y AUM Change+$1.2B (+156.6%)

Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees12
Clients per Employee2:1
10Y Employee Change0 (0.0%)

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.