Gagnon Securities, LLC
● SEC registered since 2005CRD 103727SEC# 801-64836New York, NY
Reg. AUM
$529.7M
Employees
19
Accounts
1,202
Location
New York, NY
Gagnon Securities, LLC assets under management
Gagnon Securities, LLC is a registered investment adviser overseen by the SEC based in New York, NY. The firm has been registered since 2005. It reports $529.7 million in regulatory assets under management and employs 19 people.
Gagnon Securities, LLC owners & executives
23 reported| Name | Title | Ownership | Since |
|---|---|---|---|
| Adrienne Michelle Garofalo | Member | Under 5% | 2015 |
| Alison O'Brien Tranchida Control | Operations Manager | Under 5% | 2017 |
| Alison O'Brien Tranchida Control | Member | Under 5% | 2007 |
See all 23 owners & executives — unlock the full record.
Join to unlock · $37/moFrequently asked questions
How much does Gagnon Securities, LLC manage?
Gagnon Securities, LLC reports $529.7 million in regulatory assets under management on its Form ADV.
How many employees does Gagnon Securities, LLC have?
Gagnon Securities, LLC reports 19 employees.
Where is Gagnon Securities, LLC located?
Gagnon Securities, LLC is based in New York, NY and has been SEC-registered since 2005.
Does Gagnon Securities, LLC disclose fund performance?
Gagnon Securities, LLC is not required to publicly disclose fund returns. Form ADV filings include assets, ownership, and service providers, shown above.
Contact & registration
| Address | 1370 6th Avenue, 26th Floor, New York, NY 10019 |
| Phone | 212-554-5000 |
| Fax | (585) 496-3144 |
| Office hours | 8:00a.m. - 5:30p.m. |
| SEC region | New York Regional Office (NYRO) |
| CIK | 1125725 |
| Discloses disciplinary history | Yes |
Regulatory AUM
$529.7M▼ 3%
Mar '25Form ADV, monthlyJun '26
How this firm compares
Regulatory AUMTop 47%
Larger than 53% of 16,271 advisers
EmployeesTop 25%
More than 75% of 16,825 advisers
Assets under management
$529.7Mregulatory AUM
Discretionary $529.7M