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Gagnon Advisors, LLC

SEC CIK
0001599466
Latest filing
Aug 4, 2026

Holdings in Q3 2021

Holdings as of Sep 30, 2021, filed Nov 12, 2021. Long positions only; changes compare share counts with Q2 2021.

Institution overview
Positions
35
+3 vs. Q2 2021
Portfolio value
$252.1M
−$11.0M (−4.2%) vs. Q2 2021
Filed
Nov 12, 2021
SEC
Holdings of Gagnon Advisors, LLC in Q3 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
CDNACareDx, Inc.COM253,990$16.1M6.4%00.0%UnchangedHistory
BLBlackline, Inc.COM123,843$14.6M5.8%00.0%UnchangedHistory
AMRCAmeresco, Inc.CL A240,878$14.1M5.6%−100,742−29.5%ReducedHistory
AOSLAlpha & Omega Semiconductor LtdSHS430,821$13.5M5.4%00.0%UnchangedHistory
PCRXPacira BioSciences, Inc.COM240,142$13.4M5.3%+26,925+12.6%AddedHistory
FIVNFive9, Inc.COM81,266$13.0M5.1%+7,388+10.0%AddedHistory
EVBGEverbridge, Inc.COM80,222$12.1M4.8%+3,527+4.6%AddedHistory
APENApollo Endosurgery, Inc.COM1,329,354$12.0M4.8%00.0%UnchangedHistory
ALSumisho Air Lease CorpCL A254,950$10.0M4.0%00.0%UnchangedHistory
YEXTYext, Inc.COM812,496$9.77M3.9%+160,983+24.7%AddedHistory
ETWOE2open Parent Holdings, Inc.COM CL A840,947$9.50M3.8%+246,478+41.5%AddedHistory
SCWXSecureWorks CorpCL A468,599$9.32M3.7%+95,633+25.6%AddedHistory
NEWRNew Relic, Inc.COM124,589$8.94M3.5%00.0%UnchangedHistory
NVGSNavigator Holdings Ltd.SHS973,781$8.67M3.4%00.0%UnchangedHistory
EVAEnviva, LLCCOM UNIT144,777$7.83M3.1%+144,777NewHistory
LLLL Flooring Holdings, Inc.COM409,756$7.65M3.0%00.0%UnchangedHistory
BLFSBiolife Solutions IncCOM NEW175,275$7.42M2.9%−19,475−10.0%ReducedHistory
EQIXEquinix IncCOM9,171$7.25M2.9%00.0%UnchangedHistory
SLGCSomaLogic, Inc.CLASS A COM512,968$6.36M2.5%+512,968NewHistory
EPDEnterprise Products Partners L.P.Stock275,981$5.97M2.4%00.0%UnchangedHistory
PROFProfound Medical Corp.COM NEW402,177$5.89M2.3%+124,925+45.1%AddedHistory
ZUOZuora IncCOM CL A337,993$5.60M2.2%+337,993NewHistory
ONTOOnto Innovation Inc.COM71,307$5.15M2.0%−78,341−52.4%ReducedHistory
FRSHFreshworks Inc.Stock118,577$5.06M2.0%+118,577NewHistory
CSLTCastlight Health, Inc.CL B2,958,279$4.64M1.8%00.0%UnchangedHistory
CNFCNFinance Holdings Ltd.SPON ADS667,568$3.94M1.6%00.0%UnchangedHistory
CELCCelcuity Inc.COM187,873$3.38M1.3%00.0%UnchangedHistory
WGSGeneDx Holdings Corp.COMMON STOCK370,410$2.81M1.1%+370,410NewHistory
PSIXPower Solutions International, Inc.Stock626,584$2.51M1.0%00.0%UnchangedHistory
Opsens Incorporated683823108Common Stock978,746$2.34M0.9%00.0%Unchanged–
MIROMiromatrix Medical Inc.COM229,802$1.60M0.6%00.0%UnchangedHistory
E2open Parent Holdings, Inc.29788T111*W EXP 02/04/202280,316$813.0K0.3%+44,424+18.8%Added–
SLGCWSomaLogic, Inc.*W EXP 03/01/202102,594$354.0K0.1%+102,594NewHistory
SEMA4 Holdings Corp81663L119*W EXP 07/22/202123,469$262.0K0.1%+123,469New–
TFFPTFF Pharmaceuticals, Inc.COM18,565$143.0K0.1%−157,906−89.5%ReducedHistory

Sold out since Q2 2021 (4)

Positions held at the end of Q2 2021 that are gone from this filing.

Positions of Gagnon Advisors, LLC sold out since Q2 2021
SecurityClassShares in Q2 2021Value in Q2 2021% of portfolio in Q2 2021History
CM Life Sciences Inc18978W208UNIT 09/01/2025370,410$5.84M2.2%–
DVNDevon Energy CorpStock178,783$5.22M2.0%History
CM Life Sciences II Inc125842203UNIT 02/25/2028366,905$4.93M1.9%–
CM Life Sciences III Inc125841205UNIT 04/30/2028259,710$2.84M1.1%–