Nierenberg Investment Management Company, LLC is an SEC registered investment adviser organized as a limited liability company. Its latest Form ADV filing, dated March 13, 2026, reports $235M in regulatory assets under management, 3 employees, and 4 accounts.
Portfolio management for individuals and small businesses
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 segmentPooled Investment Vehicles represent 75.0% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
75.0%
3
2
Corporations
25.0%
1
Categories with <5 clients
Corporations or other businesses not listed above<5 clients
Regulatory Assets Under Management Breakdown
Total regulatory assets under management$235Mas of March 13, 2026
Discretionary100.0%
$235M
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$235M
Total Accounts4
10Y AUM Change+$119M (+102.0%)
Employee Growth by Quarter
Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.
Total Employees3
Clients per Employee1:1
10Y Employee Change-1 (-25.0%)
* 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.