Gagnon Securities LLC

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Gagnon Securities LLC
CRD #103727
SEC #801-64836
CIK #0001125725
AUM 529.7 M (2026-05-04)
Employees 19 (53% Investors, 100% Brokers)
Fees
Minimum
Phone212-554-5000
Address1370 6th Avenue
New York, NY 10019
Source [IAPD] [EDGAR] [Website] [LinkedIn]
Total AUM ($M)
1300104078052026002004201120192027
CIK Period
0001125725
Sector Form 13F Holdings Value ($M)
Ensign Group Inc 36.2
CareDx Inc 30.6
Ameresco Inc 21.4
CM Life Sciences Inc 19.5
Enterprise Products Partners L P 19.5
Navigator Holdings Ltd 17.1
Equinix Inc 16.6
Generac Holdings Inc 14.6
Intuitive Surgical Inc 14.6
Pacira Pharmaceuticals Inc 14.0
Freshworks Inc 13.9
Carmax Inc 12.9
Profound Medical Corp 12.6
Cheesecake Factory Inc 12.3
Blackline Inc 11.0
Biolife Solutions Inc 10.2
Five9 Inc 9.4
Cargurus Inc 9.2
Amplitude Inc 7.2
Treace Medical Concepts Inc 7.0
Quidelortho Corp 6.6
Aspen Aerogels Inc 6.4
Proto Labs Inc 6.3
Celcuity Inc 6.1
Marinemax Inc 6.0
Vertex Inc 5.6
Orasure Technologies Inc 5.1
Chipotle Mexican Grill Inc 5.1
Caretrust REIT Inc 4.9
 
 
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AUM Breakdown Accounts AUM ($M)
By Client Type
(a) Individuals (other than high net worth individuals) 1,025 247.6
(b) Individuals (high net worth individuals) 33 224.2
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 0 0.0
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 0 0.0
(g) Pension and profit sharing plans 0 0.0
(h) Charitable organizations 0 0.0
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 0.0
(m) Corporations or other businesses not listed above 144 58.0
(n) Other 0 0.0
Total 1,202 529.7
By Discretionary
Discretionary 1,202 529.7
Non-Discretionary 0 0.0
Total 1,202 529.7
By Non-United States Persons
Non-United States Persons 0.8
United States Persons 528.9
Total 1,202 529.7
EDGAR Form CIK 2011 - 2026
13F-HR [0001125725]
SC 13D [0001125725]
SC 13G [0001125725]
Form 13D/13G Filer Form 13D/13G Subject Filed
Gagnon Securities LLC Orasure Technologies Inc [2026-04-08]
Gagnon Securities LLC Orasure Technologies Inc [2025-11-17]
Gagnon Securities LLC CareDx Inc [2025-07-24]
Gagnon Securities LLC Treace Medical Concepts Inc [2025-05-15]
Gagnon Securities LLC CareDx Inc [2023-03-13]
Gagnon Securities LLC CM Life Sciences II Inc [2021-04-08]
Gagnon Securities LLC Profound Medical Corp [2020-02-13]
Gagnon Securities LLC Alpha & Omega Semiconductor Ltd [2018-05-25]
Gagnon Securities LLC SecureWorks Corp [2017-08-10]
Gagnon Securities LLC General Finance Corp [2017-01-24]
View All
Firm Profile (Form ADV)
Discretionary AUM$0.1B
Clients1
ServesRetail
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