Marianne D'alessandro
Investment adviser representative at Gagnon Securities, LLC
21 yearsExperience
1 stateRegistered in
$529.7MFirm assets
20 yearsFirm in business
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How the firm charges
Fee types in the public filing. This advisor may not use all of them.
Percentage of assetsCommissions
Services the firm offers
These describe the firm as a whole, not only this advisor.
- Portfolio management
Experience
21 years in the industry.
- Gagnon Securities, LLCJul 2005 to now
Exams passed
- Series 63 · Uniform Securities Agent State Law2005
State registrations
Registered as an investment adviser representative in 1 state (NY).
Gagnon Securities, LLC
$529.7MAssets managed
1,202Clients
19Advisers
20 yearsIn business
Official records
SEC data as of Sep 29, 2026. Registrations and firm details can change; confirm current status on the SEC's Investment Adviser Public Disclosure (opens in a new tab) site.
- Individual CRD
- 5019195
- Firm CRD
- 103727