Gagnon Securities LLC
- SEC CIK
- 0001125725
- Latest filing
- Aug 4, 2026
Holdings in Q1 2026
Holdings as of Mar 31, 2026, filed Apr 22, 2026. Long positions only; changes compare share counts with Q4 2025.
- Positions
- 85
- −1 vs. Q4 2025
- Portfolio value
- $433.2M
- −$57.9M (−11.8%) vs. Q4 2025
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| ENSGEnsign Group, Inc | COM | 179,671 | $36.2M | 8.4% | −878−0.5% | Reduced | History |
| CDNACareDx, Inc. | COM | 1,761,874 | $30.6M | 7.1% | −13,016−0.7% | Reduced | History |
| AMRCAmeresco, Inc. | CL A | 840,063 | $21.4M | 4.9% | +7,179+0.9% | Added | History |
| WGSGeneDx Holdings Corp. | COM CL A | 303,149 | $19.5M | 4.5% | +49,615+19.6% | Added | History |
| EPDEnterprise Products Partners L.P. | Stock | 514,257 | $19.5M | 4.5% | −13,344−2.5% | Reduced | History |
| NVGSNavigator Holdings Ltd. | SHS | 886,631 | $17.1M | 4.0% | +24,777+2.9% | Added | History |
| EQIXEquinix Inc | COM | 16,951 | $16.6M | 3.8% | −191−1.1% | Reduced | History |
| GNRCGenerac Holdings Inc. | Stock | 74,913 | $14.6M | 3.4% | −680−0.9% | Reduced | History |
| ISRGIntuitive Surgical Inc | COM NEW | 31,619 | $14.6M | 3.4% | −178−0.6% | Reduced | History |
| PCRXPacira BioSciences, Inc. | COM | 617,510 | $14.0M | 3.2% | +116,299+23.2% | Added | History |
| FRSHFreshworks Inc. | Stock | 1,731,367 | $13.9M | 3.2% | +501,356+40.8% | Added | History |
| KMXCarMax Inc | COM | 309,699 | $12.9M | 3.0% | −10,378−3.2% | Reduced | History |
| PROFProfound Medical Corp. | COM NEW | 1,944,324 | $12.6M | 2.9% | +2630.0% | Added | History |
| CAKECheesecake Factory Inc | COM | 225,048 | $12.3M | 2.8% | −1,546−0.7% | Reduced | History |
| BLBlackline, Inc. | COM | 296,424 | $11.0M | 2.5% | +17,026+6.1% | Added | History |
| BLFSBiolife Solutions Inc | COM NEW | 536,512 | $10.2M | 2.4% | +2,155+0.4% | Added | History |
| FIVNFive9, Inc. | COM | 622,064 | $9.44M | 2.2% | −3,662−0.6% | Reduced | History |
| iShares Tr46436E718 | 0-3 MTH TREASURY | 92,702 | $9.33M | 2.2% | +92,702 | New | – |
| CARGCarGurus, Inc. | COM CL A | 271,524 | $9.25M | 2.1% | +702+0.3% | Added | History |
| AMPLAmplitude, Inc. | Stock | 1,059,836 | $7.23M | 1.7% | +360,966+51.6% | Added | History |
| TMCITreace Medical Concepts, Inc. | COM | 5,201,886 | $6.97M | 1.6% | +2,091,311+67.2% | Added | History |
| QDELQuidelOrtho Corp | COM | 403,325 | $6.63M | 1.5% | +244,148+153.4% | Added | History |
| ASPNAspen Aerogels Inc | COM | 1,861,851 | $6.37M | 1.5% | +728,603+64.3% | Added | History |
| PRLBProto Labs Inc | COM | 110,889 | $6.32M | 1.5% | −659−0.6% | Reduced | History |
| CELCCelcuity Inc. | COM | 53,342 | $6.09M | 1.4% | −59−0.1% | Reduced | History |
| HZOMarinemax Inc | COM | 220,610 | $5.97M | 1.4% | −101,443−31.5% | Reduced | History |
| VERXVertex, Inc. | Stock | 468,220 | $5.57M | 1.3% | +103,577+28.4% | Added | History |
| OSUROrasure Technologies Inc | COM | 1,714,391 | $5.14M | 1.2% | +144,609+9.2% | Added | History |
| CMGChipotle Mexican Grill Inc | COM | 157,849 | $5.05M | 1.2% | +874+0.6% | Added | History |
| WCPRFWhitecap Resources Inc. | COM | 435,418 | $4.90M | 1.1% | −50,704−10.4% | Reduced | History |
| CTRECareTrust REIT, Inc. | COM | 133,046 | $4.88M | 1.1% | −250.0% | Reduced | History |
| HNGEHinge Health, Inc. | CL A | 124,250 | $4.79M | 1.1% | +124,250 | New | History |
| DVDoubleVerify Holdings, Inc. | COM | 488,462 | $4.64M | 1.1% | −3,202−0.7% | Reduced | History |
| PNTGPennant Group, Inc. | COM | 137,484 | $4.19M | 1.0% | −420.0% | Reduced | History |
| KLTRKaltura Inc | COM | 3,278,936 | $4.00M | 0.9% | +417,571+14.6% | Added | History |
| ICUIIcu Medical Inc | COM | 29,743 | $3.84M | 0.9% | +670+2.3% | Added | History |
| AOSLAlpha & Omega Semiconductor Ltd | SHS | 167,874 | $3.72M | 0.9% | −47,768−22.2% | Reduced | History |
| PTENPatterson Uti Energy Inc | COM | 314,646 | $3.41M | 0.8% | −38,131−10.8% | Reduced | History |
| MCHPMicrochip Technology Inc | Stock | 26,838 | $1.73M | 0.4% | −324−1.2% | Reduced | History |
| SAMBoston Beer Co Inc | CL A | 7,239 | $1.67M | 0.4% | +884+13.9% | Added | History |
| GNLGlobal Net Lease, Inc. | COM NEW | 170,125 | $1.59M | 0.4% | −385−0.2% | Reduced | History |
| GNTXGentex Corp | COM | 56,933 | $1.24M | 0.3% | +1,261+2.3% | Added | History |
| PFEPfizer Inc | Stock | 44,260 | $1.24M | 0.3% | −93−0.2% | Reduced | History |
| CNFCNFinance Holdings Ltd. | SPONSORED ADS | 313,938 | $1.23M | 0.3% | −2,915−0.9% | Reduced | History |
| NCNOnCino, Inc. | COM | 79,520 | $1.19M | 0.3% | +6,026+8.2% | Added | History |
| DOCUDocuSign, Inc. | Stock | 21,232 | $1.01M | 0.2% | +21,232 | New | History |
| Nintendo Ltd ADR654445303 | ADR | 69,697 | $996.0K | 0.2% | −626−0.9% | Reduced | – |
| FLGFlagstar Bank, National Association | Stock | 74,711 | $983.9K | 0.2% | −156−0.2% | Reduced | History |
| DVNDevon Energy Corp | Stock | 19,066 | $959.4K | 0.2% | −45−0.2% | Reduced | History |
| SLGSL Green Realty Corp | COM | 25,862 | $955.3K | 0.2% | +24+0.1% | Added | History |
| TAT&T Inc. | Stock | 32,094 | $930.4K | 0.2% | −1,133−3.4% | Reduced | History |
| MTSIMACOM Technology Solutions Holdings, Inc. | COM | 3,670 | $815.0K | 0.2% | +375+11.4% | Added | History |
| GOOGLAlphabet Inc. | Stock | 2,556 | $735.0K | 0.2% | 00.0% | Unchanged | History |
| MRVLMarvell Technology, Inc. | COM | 6,825 | $676.0K | 0.2% | +498+7.9% | Added | History |
| NVDANVIDIA Corp | Stock | 3,655 | $637.4K | 0.1% | −16,862−82.2% | Reduced | History |
| GOOGAlphabet Inc. | Stock | 1,934 | $554.8K | 0.1% | −5−0.3% | Reduced | History |
| TECHBIO-TECHNE Corp | COM | 9,879 | $516.3K | 0.1% | +265+2.8% | Added | History |
| VIAVViavi Solutions Inc. | COM | 14,511 | $482.9K | 0.1% | −9,481−39.5% | Reduced | History |
| METAMeta Platforms, Inc. | Stock | 839 | $480.0K | 0.1% | 00.0% | Unchanged | History |
| CGNXCognex Corp | COM | 9,780 | $479.1K | 0.1% | +8+0.1% | Added | History |
| SHOPShopify Inc. | Stock | 3,932 | $466.4K | 0.1% | +248+6.7% | Added | History |
| ONTOOnto Innovation Inc. | COM | 2,242 | $459.8K | 0.1% | 00.0% | Unchanged | History |
| Ces Energy Solutions Corp15713J104 | COM | 33,350 | $440.0K | 0.1% | −12,350−27.0% | Reduced | – |
| GRSDGRANDSTAND Ltd | ORDINARY SHARES | 109,697 | $425.6K | 0.1% | +4,128+3.9% | Added | History |
| MRKMerck & Co., Inc. | Stock | 3,192 | $384.0K | 0.1% | −675−17.5% | Reduced | History |
| LTHLife Time Group Holdings, Inc. | COMMON STOCK | 13,550 | $365.0K | 0.1% | +12+0.1% | Added | History |
| SBUXStarbucks Corp | Stock | 4,071 | $364.7K | 0.1% | −1,431−26.0% | Reduced | History |
| MUMicron Technology Inc | Stock | 1,077 | $363.9K | 0.1% | 00.0% | Unchanged | History |
| HIMXHimax Technologies, Inc. | SPONSORED ADR | 44,773 | $352.4K | 0.1% | −9,173−17.0% | Reduced | History |
| CVLTCommvault Systems Inc | COM | 4,376 | $340.8K | 0.1% | +1,923+78.4% | Added | History |
| AKAMAkamai Technologies Inc | COM | 2,896 | $332.6K | 0.1% | +376+14.9% | Added | History |
| RNGRingCentral, Inc. | CL A | 8,422 | $313.2K | 0.1% | +273+3.4% | Added | History |
| RNTXRein Therapeutics, Inc. | COM NEW | 239,520 | $311.4K | 0.1% | −700−0.3% | Reduced | History |
| ETSYEtsy Inc | COM | 5,773 | $288.5K | 0.1% | +81+1.4% | Added | History |
| EOGEOG Resources Inc | Stock | 1,851 | $267.6K | 0.1% | +1,851 | New | History |
| APPSDigital Turbine, Inc. | COM NEW | 81,839 | $235.7K | 0.1% | 00.0% | Unchanged | History |
| RMBSRambus Inc | COM | 2,722 | $234.2K | 0.1% | +11+0.4% | Added | History |
| PLPlanet Labs PBC | COM CL A | 8,352 | $233.4K | 0.1% | +8,352 | New | History |
| BXBlackstone Inc. | COM | 1,940 | $223.1K | 0.1% | +465+31.5% | Added | History |
| ELVAElectrovaya Inc. | COM NEW | 26,257 | $205.3K | <0.1% | +26,257 | New | History |
| MSFTMicrosoft Corp | Stock | 545 | $201.7K | <0.1% | +37+7.3% | Added | History |
| ATNMActinium Pharmaceuticals, Inc. | COM | 201,300 | $200.4K | <0.1% | −507−0.3% | Reduced | History |
| SVVSavers Value Village, Inc. | COM | 25,148 | $187.1K | <0.1% | +11,384+82.7% | Added | History |
| WEAVWeave Communications, Inc. | Stock | 34,220 | $158.1K | <0.1% | −36,269−51.5% | Reduced | History |
| RDHLRedHill Biopharma Ltd. | SPONSORED ADR | 88,405 | $65.9K | <0.1% | +2,303+2.7% | Added | History |
Sold out since Q4 2025 (7)
Positions held at the end of Q4 2025 that are gone from this filing.
| Security | Class | Shares in Q4 2025 | Value in Q4 2025 | % of portfolio in Q4 2025 | History |
|---|---|---|---|---|---|
| ALSumisho Air Lease Corp | CL A | 496,957 | $31.9M | 6.5% | History |
| EXASExact Sciences Corp | COM | 167,414 | $17.0M | 3.5% | History |
| TPRTapestry, Inc. | COM | 21,447 | $2.74M | 0.6% | History |
| XOMExxonMobil Holdings Corp | COM | 7,180 | $864.0K | 0.2% | History |
| PYPLPayPal Holdings, Inc. | Stock | 6,596 | $385.1K | 0.1% | History |
| PETSPetmed Express Inc | COM | 42,328 | $135.4K | <0.1% | History |
| GDRXGoodRx Holdings, Inc. | COM CL A | 44,118 | $119.6K | <0.1% | History |