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Gagnon Securities LLC

SEC CIK
0001125725
Latest filing
Aug 4, 2026

Holdings in Q4 2023

Holdings as of Dec 31, 2023, filed Feb 14, 2024. Long positions only; changes compare share counts with Q3 2023.

Institution overview
Positions
102
+5 vs. Q3 2023
Portfolio value
$416.6M
+$17.5M (+4.4%) vs. Q3 2023
Filed
Feb 14, 2024
SEC
Holdings of Gagnon Securities LLC in Q4 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
ALSumisho Air Lease CorpCL A831,990$34.9M8.4%−30,627−3.6%ReducedHistory
ENSGEnsign Group, IncCOM265,971$29.8M7.2%−20,489−7.2%ReducedHistory
CDNACareDx, Inc.COM2,096,044$25.2M6.0%+20,900+1.0%AddedHistory
ISRGIntuitive Surgical IncCOM NEW63,309$21.4M5.1%−2,920−4.4%ReducedHistory
PCRXPacira BioSciences, Inc.COM545,579$18.4M4.4%−19,850−3.5%ReducedHistory
FIVNFive9, Inc.COM203,733$16.0M3.8%−2,052−1.0%ReducedHistory
NVGSNavigator Holdings Ltd.SHS1,090,538$15.9M3.8%−88,286−7.5%ReducedHistory
EPDEnterprise Products Partners L.P.Stock541,375$14.3M3.4%−11,882−2.1%ReducedHistory
PROFProfound Medical Corp.COM NEW1,541,576$13.1M3.1%−40,590−2.6%ReducedHistory
FRSHFreshworks Inc.Stock523,154$12.3M2.9%−2,016−0.4%ReducedHistory
KMXCarMax IncCOM156,070$12.0M2.9%−162−0.1%ReducedHistory
EQIXEquinix IncCOM14,363$11.6M2.8%−216−1.5%ReducedHistory
BLBlackline, Inc.COM181,205$11.3M2.7%−9,979−5.2%ReducedHistory
AMRCAmeresco, Inc.CL A349,528$11.1M2.7%+91,693+35.6%AddedHistory
CARGCarGurus, Inc.COM CL A450,008$10.9M2.6%−2,948−0.7%ReducedHistory
CMGChipotle Mexican Grill IncCOM4,709$10.8M2.6%−68−1.4%ReducedHistory
BLFSBiolife Solutions IncCOM NEW627,479$10.2M2.4%−5,884−0.9%ReducedHistory
ZUOZuora IncCOM CL A1,060,531$9.97M2.4%−12,693−1.2%ReducedHistory
SCWXSecureWorks CorpCL A1,313,289$9.69M2.3%−50,667−3.7%ReducedHistory
AOSLAlpha & Omega Semiconductor LtdSHS344,650$8.98M2.2%−3,678−1.1%ReducedHistory
CAKECheesecake Factory IncCOM216,575$7.58M1.8%−5,772−2.6%ReducedHistory
ETWOE2open Parent Holdings, Inc.COM CL A1,692,595$7.43M1.8%−851,752−33.5%ReducedHistory
QDELQuidelOrtho CorpCOM97,708$7.20M1.7%−6,816−6.5%ReducedHistory
SAMBoston Beer Co IncCL A16,813$5.81M1.4%−86−0.5%ReducedHistory
EVBGEverbridge, Inc.COM235,416$5.72M1.4%+3,764+1.6%AddedHistory
EXASExact Sciences CorpCOM69,430$5.14M1.2%+2,909+4.4%AddedHistory
GNRCGenerac Holdings Inc.Stock37,987$4.91M1.2%+569+1.5%AddedHistory
CTRECareTrust REIT, Inc.COM184,307$4.12M1.0%−561−0.3%ReducedHistory
PRLBProto Labs IncCOM92,026$3.59M0.9%+1,736+1.9%AddedHistory
CNFCNFinance Holdings Ltd.SPON ADS1,593,423$3.54M0.8%−23,443−1.4%ReducedHistory
AKAMAkamai Technologies IncCOM29,868$3.53M0.8%−178−0.6%ReducedHistory
KLTRKaltura IncCOM1,737,506$3.39M0.8%−14,973−0.9%ReducedHistory
DVDoubleVerify Holdings, Inc.COM84,973$3.13M0.8%+84,973NewHistory
VERXVertex, Inc.Stock99,030$2.67M0.6%+99,030NewHistory
PSIXPower Solutions International, Inc.Stock1,282,137$2.63M0.6%−14,222−1.1%ReducedHistory
PNTGPennant Group, Inc.COM188,425$2.62M0.6%−946−0.5%ReducedHistory
ICUIIcu Medical IncCOM22,353$2.23M0.5%+8,411+60.3%AddedHistory
SLGCSomaLogic, Inc.CLASS A COM805,224$2.04M0.5%−1,920−0.2%ReducedHistory
GNTXGentex CorpCOM59,569$1.95M0.5%+46+0.1%AddedHistory
MCHPMicrochip Technology IncStock21,056$1.90M0.5%−38−0.2%ReducedHistory
TPRTapestry, Inc.COM51,234$1.89M0.5%+167+0.3%AddedHistory
SLGSL Green Realty CorpCOM38,488$1.74M0.4%−13,949−26.6%ReducedHistory
PTENPatterson Uti Energy IncCOM155,726$1.68M0.4%+1,584+1.0%AddedHistory
ALTAltimmune, Inc.COM NEW111,342$1.25M0.3%−180−0.2%ReducedHistory
DVNDevon Energy CorpStock24,978$1.13M0.3%−47−0.2%ReducedHistory
GNLGlobal Net Lease, Inc.COM NEW104,911$1.04M0.3%+64,830+161.7%AddedHistory
PFEPfizer IncStock35,922$1.03M0.2%+4,918+15.9%AddedHistory
MRVLMarvell Technology, Inc.COM17,002$1.03M0.2%−112−0.7%ReducedHistory
Nintendo Ltd ADR654445303ADR77,718$1.01M0.2%+39+0.1%Added–
WGSGeneDx Holdings Corp.COM CL A349,278$960.5K0.2%−26,805−7.1%ReducedHistory
XOMExxonMobil Holdings CorpCOM9,321$931.9K0.2%−1,114−10.7%ReducedHistory
CELCCelcuity Inc.COM54,010$786.9K0.2%00.0%UnchangedHistory
TAT&T Inc.Stock41,567$697.5K0.2%−4,559−9.9%ReducedHistory
WFCWells Fargo & CompanyStock13,056$642.6K0.2%00.0%UnchangedHistory
SHOPShopify Inc.Stock7,316$569.9K0.1%+274+3.9%AddedHistory
WBAWalgreens Boots Alliance, Inc.COM18,356$479.3K0.1%−2,327−11.3%ReducedHistory
EOGEOG Resources IncStock3,787$458.0K0.1%00.0%UnchangedHistory
BLZEBackblaze, Inc.COM CL A54,404$412.9K0.1%−14,657−21.2%ReducedHistory
METAMeta Platforms, Inc.Stock1,143$404.6K0.1%−67−5.5%ReducedHistory
SBUXStarbucks CorpStock4,179$401.2K0.1%−484−10.4%ReducedHistory
TECHBIO-TECHNE CorpCOM4,864$375.3K0.1%+932+23.7%AddedHistory
MRKMerck & Co., Inc.Stock3,401$370.8K0.1%−422−11.0%ReducedHistory
GOOGLAlphabet Inc.Stock2,625$366.7K0.1%−128−4.6%ReducedHistory
GDRXGoodRx Holdings, Inc.COM CL A52,624$352.6K0.1%+825+1.6%AddedHistory
MSFTMicrosoft CorpStock937$352.3K0.1%−17−1.8%ReducedHistory
MUMicron Technology IncStock3,996$341.0K0.1%+8+0.2%AddedHistory
SHELShell plcADR4,755$312.9K0.1%−1,539−24.5%ReducedHistory
ZMZoom Communications, Inc.Stock4,336$311.8K0.1%+36+0.8%AddedHistory
PYPLPayPal Holdings, Inc.Stock5,073$311.5K0.1%+1,081+27.1%AddedHistory
RBLXRoblox CorpStock6,528$298.5K0.1%+6,528NewHistory
CVLTCommvault Systems IncCOM3,629$289.8K0.1%−70−1.9%ReducedHistory
BXBlackstone Inc.COM2,155$282.1K0.1%−48−2.2%ReducedHistory
MXCTMaxcyte, Inc.COM56,701$266.5K0.1%+1,264+2.3%AddedHistory
Ces Energy Solutions Corp15713J104COM99,592$260.6K0.1%−14,123−12.4%Reduced–
ONTOOnto Innovation Inc.COM1,700$259.9K0.1%−21−1.2%ReducedHistory
APPSDigital Turbine, Inc.COM NEW36,462$250.1K0.1%+13,797+60.9%AddedHistory
NVDANVIDIA CorpStock503$249.1K0.1%−133−20.9%ReducedHistory
RAMPLiveRamp Holdings, Inc.COM6,379$241.6K0.1%+6,379NewHistory
WBDWarner Bros. Discovery, Inc.Stock21,168$240.9K0.1%−2,152−9.2%ReducedHistory
PETSPetmed Express IncCOM31,589$238.8K0.1%−4,902−13.4%ReducedHistory
SHOOSteven Madden, Ltd.COM5,551$233.1K0.1%+5,551NewHistory
RNGRingCentral, Inc.CL A6,452$219.0K0.1%+6,452NewHistory
ETSYEtsy IncCOM2,641$214.1K0.1%+2,641NewHistory
DRRXDurect CorpCOM NEW358,706$211.6K0.1%+101,938+39.7%AddedHistory
MODNModel N, Inc.COM7,748$208.7K0.1%+7,748NewHistory
LTHLife Time Group Holdings, Inc.COMMON STOCK13,504$203.6K<0.1%+2,723+25.3%AddedHistory
LLLL Flooring Holdings, Inc.COM51,487$200.8K<0.1%−3,133−5.7%ReducedHistory
GILDGilead Sciences, Inc.Stock2,339$189.5K<0.1%−821−26.0%ReducedHistory
VIAVViavi Solutions Inc.COM18,549$186.8K<0.1%−66−0.4%ReducedHistory
RVLVRevolve Group, Inc.CL A10,879$180.4K<0.1%+10,879NewHistory
MBLYMobileye Global Inc.Stock4,037$174.9K<0.1%+4,037NewHistory
GAPGap IncCOM6,593$137.9K<0.1%−4,029−37.9%ReducedHistory
ADMArcher-Daniels-Midland CoStock1,840$132.9K<0.1%+1,840NewHistory
DHXDhi Group, Inc.COM50,535$130.9K<0.1%+64+0.1%AddedHistory
EVAEnviva, LLCCOM131,380$130.8K<0.1%−356,755−73.1%ReducedHistory
RDHLRedHill Biopharma Ltd.SPON ADS NEW89,589$130.8K<0.1%+41,624+86.8%AddedHistory
YEXTYext, Inc.COM22,201$130.8K<0.1%−1,003,945−97.8%ReducedHistory
RNTXRein Therapeutics, Inc.COM NEW37,947$115.7K<0.1%+37,947NewHistory
SYFSynchrony FinancialCOM2,888$110.3K<0.1%+2,888NewHistory
LPSNLiveperson IncCOM20,251$76.8K<0.1%+1,639+8.8%AddedHistory

Sold out since Q3 2023 (8)

Positions held at the end of Q3 2023 that are gone from this filing.

Positions of Gagnon Securities LLC sold out since Q3 2023
SecurityClassShares in Q3 2023Value in Q3 2023% of portfolio in Q3 2023History
Opsens Incorporated683823108Common Stock3,124,637$4.09M1.0%–
MIROMiromatrix Medical Inc.COM1,458,351$1.91M0.5%History
Ocado Group PLCG6718L106COM60,483$443.2K0.1%–
E2open Parent Holdings, Inc.29788T111*W EXP 02/04/202470,493$221.1K0.1%–
Sysmex CorpJ7864H102COM4,446$212.5K0.1%–
INTTIntest CorpCOM11,891$180.4K<0.1%History
TFFPTFF Pharmaceuticals, Inc.COM162,565$56.9K<0.1%History
SEMA4 Holdings Corp81663L119*W EXP 07/22/20237,007$1.11K<0.1%–