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Gagnon Advisors, LLC

SEC CIK
0001599466
Latest filing
Aug 4, 2026

Holdings in Q2 2021

Holdings as of Jun 30, 2021, filed Jul 28, 2021. Long positions only; changes compare share counts with Q1 2021.

Institution overview
Positions
32
+2 vs. Q1 2021
Portfolio value
$263.1M
+$20.2M (+8.3%) vs. Q1 2021
Filed
Jul 28, 2021
SEC
Holdings of Gagnon Advisors, LLC in Q2 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
CDNACareDx, Inc.COM253,990$23.2M8.8%−90,896−26.4%ReducedHistory
AMRCAmeresco, Inc.CL A341,620$21.4M8.1%−54,398−13.7%ReducedHistory
BLBlackline, Inc.COM123,843$13.8M5.2%00.0%UnchangedHistory
FIVNFive9, Inc.COM73,878$13.5M5.1%00.0%UnchangedHistory
AOSLAlpha & Omega Semiconductor LtdSHS430,821$13.1M5.0%00.0%UnchangedHistory
PCRXPacira BioSciences, Inc.COM213,217$12.9M4.9%+19,357+10.0%AddedHistory
ONTOOnto Innovation Inc.COM149,648$10.9M4.2%00.0%UnchangedHistory
APENApollo Endosurgery, Inc.COM1,329,354$10.8M4.1%+128,585+10.7%AddedHistory
NVGSNavigator Holdings Ltd.SHS973,781$10.7M4.1%00.0%UnchangedHistory
ALSumisho Air Lease CorpCL A254,950$10.6M4.0%00.0%UnchangedHistory
EVBGEverbridge, Inc.COM76,695$10.4M4.0%00.0%UnchangedHistory
YEXTYext, Inc.COM651,513$9.31M3.5%+235,380+56.6%AddedHistory
BLFSBiolife Solutions IncCOM NEW194,750$8.67M3.3%00.0%UnchangedHistory
LLLL Flooring Holdings, Inc.COM409,756$8.65M3.3%+122,137+42.5%AddedHistory
NEWRNew Relic, Inc.COM124,589$8.34M3.2%00.0%UnchangedHistory
CSLTCastlight Health, Inc.CL B2,958,279$7.78M3.0%00.0%UnchangedHistory
EQIXEquinix IncCOM9,171$7.36M2.8%00.0%UnchangedHistory
SCWXSecureWorks CorpCL A372,966$6.91M2.6%+22,631+6.5%AddedHistory
ETWOE2open Parent Holdings, Inc.COM CL A594,469$6.79M2.6%00.0%UnchangedHistory
EPDEnterprise Products Partners L.P.Stock275,981$6.66M2.5%00.0%UnchangedHistory
CM Life Sciences Inc18978W208UNIT 09/01/2025370,410$5.84M2.2%00.0%Unchanged–
DVNDevon Energy CorpStock178,783$5.22M2.0%00.0%UnchangedHistory
CM Life Sciences II Inc125842203UNIT 02/25/2028366,905$4.93M1.9%00.0%Unchanged–
PROFProfound Medical Corp.COM NEW277,252$4.54M1.7%00.0%UnchangedHistory
CELCCelcuity Inc.COM187,873$4.51M1.7%−40,162−17.6%ReducedHistory
PSIXPower Solutions International, Inc.Stock626,584$3.82M1.5%00.0%UnchangedHistory
CM Life Sciences III Inc125841205UNIT 04/30/2028259,710$2.84M1.1%+259,710New–
MIROMiromatrix Medical Inc.COM229,802$2.68M1.0%+229,802NewHistory
CNFCNFinance Holdings Ltd.SPON ADS667,568$2.48M0.9%00.0%UnchangedHistory
Opsens Incorporated683823108Common Stock978,746$1.79M0.7%+978,746New–
TFFPTFF Pharmaceuticals, Inc.COM176,471$1.70M0.6%00.0%UnchangedHistory
E2open Parent Holdings, Inc.29788T111*W EXP 02/04/202235,892$808.0K0.3%+235,892New–

Sold out since Q1 2021 (2)

Positions held at the end of Q1 2021 that are gone from this filing.

Positions of Gagnon Advisors, LLC sold out since Q1 2021
SecurityClassShares in Q1 2021Value in Q1 2021% of portfolio in Q1 2021History
General Fin Corp Del369822101COM891,024$10.8M4.5%–
QUMUQumu CorpCOM197,414$1.33M0.5%History