Oppenheimer Investment Management LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in New York, NY. Its latest Form ADV filing, dated March 19, 2026, reports $929M in regulatory assets under management, 8 employees, 1 office, and 61 accounts.
Portfolio management for individuals and small businesses
Fee models offered
1 types reported
Asset based fees
Sources checked May 14, 2026
Client Coverage Demographics
Top client segmentIrrevocable Trusts/Estates represent 32.8% of total clients.
Top client categories% of clientsClients
1
Irrevocable Trusts/Estates
32.8%
20
2
Insurance Cos.
23.0%
14
3
Charitable
18.0%
11
4
Corporations
18.0%
11
5
Government
4.9%
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$929Mas of March 19, 2026
Discretionary100.0%
$929M
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$929M
Total Accounts61
10Y AUM Change$-362M (-28.0%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees8
Clients per Employee8:1
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.