Little Harbor Advisors, LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Marblehead, MA. Its latest Form ADV filing, dated March 27, 2026, reports $243M in regulatory assets under management, 13 employees, and 4 accounts.
Portfolio management for pooled investment vehicles
Fee models offered
2 types reported
Asset based fees
Other fee arrangements
Sources checked May 16, 2026
Client Coverage Demographics
Top client segmentInvestment Cos. represent 75.0% of total clients.
Top client categories% of clientsClients
1
Investment Cos.
75.0%
3
2
Pooled Investment Vehicles
25.0%
1
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$243Mas of March 27, 2026
Discretionary100.0%
$243M
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$243M
Total Accounts4
10Y AUM Change+$239M (+7252.5%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees13
Clients per Employee0:1
10Y Employee Change+5 (+62.5%)
* 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.