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Gagnon Advisors, LLC

SEC CIK
0001599466
Latest filing
Aug 4, 2026

Holdings in Q3 2025

Holdings as of Sep 30, 2025, filed Nov 3, 2025. Long positions only; changes compare share counts with Q2 2025.

Institution overview
Positions
24
0 vs. Q2 2025
Portfolio value
$162.0M
+$13.1M (+8.8%) vs. Q2 2025
Filed
Nov 3, 2025
SEC
Holdings of Gagnon Advisors, LLC in Q3 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
AMRCAmeresco, Inc.CL A472,798$15.9M9.8%00.0%UnchangedHistory
WGSGeneDx Holdings Corp.COM CL A127,062$13.7M8.5%00.0%UnchangedHistory
FRSHFreshworks Inc.Stock1,129,758$13.3M8.2%+659,324+140.2%AddedHistory
ALSumisho Air Lease CorpCL A196,479$12.5M7.7%00.0%UnchangedHistory
EPDEnterprise Products Partners L.P.Stock339,877$10.6M6.6%00.0%UnchangedHistory
EQIXEquinix IncCOM10,715$8.39M5.2%00.0%UnchangedHistory
NVGSNavigator Holdings Ltd.SHS517,066$8.01M4.9%00.0%UnchangedHistory
CDNACareDx, Inc.COM529,414$7.70M4.8%+75,251+16.6%AddedHistory
DVDoubleVerify Holdings, Inc.COM625,770$7.50M4.6%+312,885+100.0%AddedHistory
BLFSBiolife Solutions IncCOM NEW274,217$7.00M4.3%00.0%UnchangedHistory
BLBlackline, Inc.COM130,050$6.91M4.3%00.0%UnchangedHistory
TMCITreace Medical Concepts, Inc.COM968,464$6.50M4.0%+138,194+16.6%AddedHistory
VERXVertex, Inc.Stock232,479$5.76M3.6%+70,666+43.7%AddedHistory
PCRXPacira BioSciences, Inc.COM213,402$5.50M3.4%00.0%UnchangedHistory
PROFProfound Medical Corp.COM NEW896,671$4.38M2.7%00.0%UnchangedHistory
FIVNFive9, Inc.COM167,386$4.05M2.5%00.0%UnchangedHistory
ASPNAspen Aerogels IncCOM565,570$3.94M2.4%00.0%UnchangedHistory
OSUROrasure Technologies IncCOM1,207,440$3.88M2.4%00.0%UnchangedHistory
HZOMarinemax IncCOM151,845$3.85M2.4%+151,845NewHistory
AMPLAmplitude, Inc.Stock352,991$3.78M2.3%+352,991NewHistory
AOSLAlpha & Omega Semiconductor LtdSHS120,196$3.36M2.1%00.0%UnchangedHistory
NVDANVIDIA CorpStock16,555$3.09M1.9%00.0%UnchangedHistory
KLTRKaltura IncCOM1,413,010$2.03M1.3%+26,966+1.9%AddedHistory
CNFCNFinance Holdings Ltd.SPONSORED ADS80,359$336.7K0.2%−76,584−48.8%ReducedConverted for a 1-for-10 splitHistory

Sold out since Q2 2025 (2)

Positions held at the end of Q2 2025 that are gone from this filing.

Positions of Gagnon Advisors, LLC sold out since Q2 2025
SecurityClassShares in Q2 2025Value in Q2 2025% of portfolio in Q2 2025History
PSIXPower Solutions International, Inc.Stock180,405$11.7M7.8%History
EXASExact Sciences CorpCOM86,972$4.62M3.1%History