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GAGNON SECURITIES, LLC
CRD 103727File 801-64836
APPROVED
Retail clients
Disclosure events
Filing as of Aug 12, 2026
Feed vintage Aug 17, 2026
Regulatory AUM
$529.7M
Above cohort median (national)
Discretionary AUM
$529.7M
Clients
1,202
1,202 accounts
Employees
19
Below cohort median in NY
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- NYRO
- Registration date
- Oct 21, 2005
- Principal office
- 1370 6TH AVENUE, 26TH FLOOR, NEW YORK, NY, 10019
- Phone
- 212-554-5000
- Website
- HTTP://WWW.GAGNONSEC.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $529.7M
- Discretionary AUM
- $529.7M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 1,202
- Non-discretionary accounts
- 0
- Total accounts
- 1,202
- AUM per client
- $441K
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | 144 | $58.0M |
| High net worth individuals | 33 | $224.2M |
| Individuals (other than high net worth individuals) | 1,025 | $247.6M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Commissions
- A percentage of assets under your management
Advisory activities
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11- Q11
- Q11C2
- Q11C4
- Q11C5
Filed changes
| Date | Field | From | To |
|---|---|---|---|
| Aug 12, 2026 | Registration | — | APPROVED |
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.