Firm profile

TWIN SECURITIES, INC.

NEW YORK, NYCRD 158318Latest ADV March 31, 2026

Twin Securities, Inc. is an SEC registered investment adviser organized as a corporation with a primary office location in New York, NY. Its latest Form ADV filing, dated March 31, 2026, reports $318M in regulatory assets under management, 5 employees, and 5 accounts.

Assets Under Management
$318M
Employees
5
Offices
--
Total Clients
5
Primary office
NEW YORK, NY
152 WEST 57TH STREET, 54TH FLOOR, NEW YORK, NY, United States
ADV Item 1F location record

Contact and digital presence

ADV profile links

Leadership

3 roles identified
CCOBrendan M. Donnelly
CFOBrendan M. Donnelly
CIODavid J. Simon

Advisory services offered

2 types reported
Portfolio management for businesses
Portfolio management for pooled investment vehicles

Fee models offered

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

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 80.0% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
80.0%
4
2
Other Advisers
20.0%
1
Categories with <5 clients
Other investment advisers<5 clients

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$318Mas of March 31, 2026
Discretionary100.0%
$318M
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$318M
Total Accounts5
10Y AUM Change$-542M (-63.0%)

Employee Growth by Quarter

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

Total Employees5
Clients per Employee1:1
10Y Employee Change-5 (-50.0%)

* 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.