Granahan Investment Management LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in Waltham, MA. Its latest Form ADV filing, dated March 26, 2026, reports $2.4B in regulatory assets under management, 20 employees, and 74 accounts.
Assets Under Management
$2.4B
Employees
20
Offices
--
Total Clients
74
Primary office
WALTHAM, MA
404 WYMAN STREET, SUITE 460, WALTHAM, MA, United States
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 13, 2026
Client Coverage Demographics
Top client segmentHNWI represent 58.1% of total clients.
Top client categories% of clientsClients
1
HNWI
58.1%
43
2
Corporations
14.9%
11
3
Charitable
12.2%
9
4
Investment Cos.
4.1%
3
5
Pooled Investment Vehicles
4.1%
3
Categories with <5 clients
Pension and profit sharing plans<5 clients
State or municipal government entities (including govt. pension plans)<5 clients
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$2.4Bas of March 26, 2026
Discretionary100.0%
$2.4B
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.
Latest AUM$2.4B
Total Accounts74
10Y AUM Change$-634M (-21.1%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees20
Clients per Employee4:1
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.