Gagnon Securities LLC
- SEC CIK
- 0001125725
- Latest filing
- Aug 4, 2026
Holdings in Q2 2026
Holdings as of Jun 30, 2026, filed Aug 4, 2026. Long positions only; changes compare share counts with Q1 2026.
- Positions
- 83
- −2 vs. Q1 2026
- Portfolio value
- $518.8M
- +$85.6M (+19.8%) vs. Q1 2026
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| CDNACareDx, Inc. | COM | 1,770,735 | $50.5M | 9.7% | +8,861+0.5% | Added | History |
| WGSGeneDx Holdings Corp. | COM CL A | 524,865 | $36.0M | 6.9% | +221,716+73.1% | Added | History |
| ENSGEnsign Group, Inc | COM | 173,911 | $27.9M | 5.4% | −5,760−3.2% | Reduced | History |
| AMRCAmeresco, Inc. | CL A | 826,562 | $22.8M | 4.4% | −13,501−1.6% | Reduced | History |
| GNRCGenerac Holdings Inc. | Stock | 73,170 | $21.4M | 4.1% | −1,743−2.3% | Reduced | History |
| EPDEnterprise Products Partners L.P. | Stock | 510,576 | $18.8M | 3.6% | −3,681−0.7% | Reduced | History |
| QDELQuidelOrtho Corp | COM | 1,030,371 | $18.0M | 3.5% | +627,046+155.5% | Added | History |
| CAKECheesecake Factory Inc | COM | 221,792 | $17.6M | 3.4% | −3,256−1.4% | Reduced | History |
| EQIXEquinix Inc | COM | 16,720 | $17.4M | 3.4% | −231−1.4% | Reduced | History |
| KMXCarMax Inc | COM | 325,410 | $17.2M | 3.3% | +15,711+5.1% | Added | History |
| FRSHFreshworks Inc. | Stock | 1,563,866 | $15.8M | 3.1% | −167,501−9.7% | Reduced | History |
| PCRXPacira BioSciences, Inc. | COM | 608,617 | $15.4M | 3.0% | −8,893−1.4% | Reduced | History |
| FIVNFive9, Inc. | COM | 722,698 | $15.4M | 3.0% | +100,634+16.2% | Added | History |
| HNGEHinge Health, Inc. | CL A | 182,959 | $15.2M | 2.9% | +58,709+47.3% | Added | History |
| BLFSBiolife Solutions Inc | COM NEW | 535,906 | $15.1M | 2.9% | −606−0.1% | Reduced | History |
| PROFProfound Medical Corp. | COM NEW | 1,960,074 | $13.0M | 2.5% | +15,750+0.8% | Added | History |
| CARGCarGurus, Inc. | COM CL A | 367,073 | $12.5M | 2.4% | +95,549+35.2% | Added | History |
| TMCITreace Medical Concepts, Inc. | COM | 3,029,543 | $12.1M | 2.3% | −2,172,343−41.8% | Reduced | History |
| 0000000000 | Stock | 765,179 | $11.7M | 2.3% | +765,179 | New | – |
| ISRGIntuitive Surgical Inc | COM NEW | 29,144 | $11.6M | 2.2% | −2,475−7.8% | Reduced | History |
| BLBlackline, Inc. | COM | 375,769 | $10.5M | 2.0% | +79,345+26.8% | Added | History |
| ASPNAspen Aerogels Inc | COM | 1,535,812 | $9.74M | 1.9% | −326,039−17.5% | Reduced | History |
| PRLBProto Labs Inc | COM | 116,283 | $9.48M | 1.8% | +5,394+4.9% | Added | History |
| VERXVertex, Inc. | Stock | 761,026 | $8.74M | 1.7% | +292,806+62.5% | Added | History |
| AMPLAmplitude, Inc. | Stock | 1,055,508 | $8.07M | 1.6% | −4,328−0.4% | Reduced | History |
| HZOMarinemax Inc | COM | 211,480 | $7.74M | 1.5% | −9,130−4.1% | Reduced | History |
| OSUROrasure Technologies Inc | COM | 1,592,147 | $7.10M | 1.4% | −122,244−7.1% | Reduced | History |
| DVDoubleVerify Holdings, Inc. | COM | 523,328 | $5.67M | 1.1% | +34,866+7.1% | Added | History |
| CELCCelcuity Inc. | COM | 53,240 | $5.57M | 1.1% | −102−0.2% | Reduced | History |
| CMGChipotle Mexican Grill Inc | COM | 155,463 | $5.29M | 1.0% | −2,386−1.5% | Reduced | History |
| CTRECareTrust REIT, Inc. | COM | 129,955 | $5.24M | 1.0% | −3,091−2.3% | Reduced | History |
| PNTGPennant Group, Inc. | COM | 135,035 | $4.99M | 1.0% | −2,449−1.8% | Reduced | History |
| WCPRFWhitecap Resources Inc. | COM | 435,100 | $4.52M | 0.9% | −318−0.1% | Reduced | History |
| ICUIIcu Medical Inc | COM | 29,400 | $4.31M | 0.8% | −343−1.2% | Reduced | History |
| KLTRKaltura Inc | COM | 3,266,999 | $4.25M | 0.8% | −11,937−0.4% | Reduced | History |
| MCHPMicrochip Technology Inc | Stock | 26,229 | $2.39M | 0.5% | −609−2.3% | Reduced | History |
| GNTXGentex Corp | COM | 57,159 | $1.44M | 0.3% | +226+0.4% | Added | History |
| GNLGlobal Net Lease, Inc. | COM NEW | 160,598 | $1.44M | 0.3% | −9,527−5.6% | Reduced | History |
| SLGSL Green Realty Corp | COM | 25,862 | $1.34M | 0.3% | 00.0% | Unchanged | History |
| SAMBoston Beer Co Inc | CL A | 7,283 | $1.29M | 0.2% | +44+0.6% | Added | History |
| NCNOnCino, Inc. | COM | 75,333 | $1.23M | 0.2% | −4,187−5.3% | Reduced | History |
| FLGFlagstar Bank, National Association | Stock | 74,456 | $1.11M | 0.2% | −255−0.3% | Reduced | History |
| APPSDigital Turbine, Inc. | COM NEW | 81,839 | $1.06M | 0.2% | 00.0% | Unchanged | History |
| WEAVWeave Communications, Inc. | Stock | 157,170 | $998.7K | 0.2% | +122,950+359.3% | Added | History |
| DOCUDocuSign, Inc. | Stock | 20,906 | $928.6K | 0.2% | −326−1.5% | Reduced | History |
| CNFCNFinance Holdings Ltd. | SPONSORED ADS | 332,345 | $920.6K | 0.2% | +18,407+5.9% | Added | History |
| GOOGLAlphabet Inc. | Stock | 2,556 | $913.4K | 0.2% | 00.0% | Unchanged | History |
| MRVLMarvell Technology, Inc. | COM | 2,923 | $870.7K | 0.2% | −3,902−57.2% | Reduced | History |
| TECHBIO-TECHNE Corp | COM | 12,230 | $864.0K | 0.2% | +2,351+23.8% | Added | History |
| DVNDevon Energy Corp | Stock | 19,021 | $785.9K | 0.2% | −45−0.2% | Reduced | History |
| MUMicron Technology Inc | Stock | 679 | $783.8K | 0.2% | −398−37.0% | Reduced | History |
| Nintendo Ltd ADR654445303 | ADR | 70,675 | $740.7K | 0.1% | +978+1.4% | Added | – |
| CGNXCognex Corp | COM | 9,798 | $709.6K | 0.1% | +18+0.2% | Added | History |
| NVDANVIDIA Corp | Stock | 3,498 | $699.9K | 0.1% | −157−4.3% | Reduced | History |
| CVLTCommvault Systems Inc | COM | 4,874 | $690.8K | 0.1% | +498+11.4% | Added | History |
| GOOGAlphabet Inc. | Stock | 1,929 | $681.6K | 0.1% | −5−0.3% | Reduced | History |
| ONTOOnto Innovation Inc. | COM | 1,709 | $646.8K | 0.1% | −533−23.8% | Reduced | History |
| TAT&T Inc. | Stock | 30,898 | $639.6K | 0.1% | −1,196−3.7% | Reduced | History |
| HIMXHimax Technologies, Inc. | SPONSORED ADR | 39,498 | $605.9K | 0.1% | −5,275−11.8% | Reduced | History |
| PFEPfizer Inc | Stock | 23,346 | $562.2K | 0.1% | −20,914−47.3% | Reduced | History |
| LTHLife Time Group Holdings, Inc. | COMMON STOCK | 13,465 | $549.9K | 0.1% | −85−0.6% | Reduced | History |
| MTSIMACOM Technology Solutions Holdings, Inc. | COM | 1,281 | $487.3K | 0.1% | −2,389−65.1% | Reduced | History |
| VIAVViavi Solutions Inc. | COM | 9,986 | $476.8K | 0.1% | −4,525−31.2% | Reduced | History |
| METAMeta Platforms, Inc. | Stock | 839 | $472.6K | 0.1% | 00.0% | Unchanged | History |
| SHOPShopify Inc. | Stock | 4,023 | $459.3K | 0.1% | +91+2.3% | Added | History |
| ETSYEtsy Inc | COM | 5,755 | $433.5K | 0.1% | −18−0.3% | Reduced | History |
| SBUXStarbucks Corp | Stock | 4,045 | $413.4K | 0.1% | −26−0.6% | Reduced | History |
| MRKMerck & Co., Inc. | Stock | 3,187 | $409.5K | 0.1% | −5−0.2% | Reduced | History |
| Ces Energy Solutions Corp15713J104 | COM | 33,350 | $389.5K | 0.1% | 00.0% | Unchanged | – |
| AKAMAkamai Technologies Inc | COM | 3,163 | $373.9K | 0.1% | +267+9.2% | Added | History |
| WRBYWarby Parker Inc. | CL A COM | 11,381 | $345.3K | 0.1% | +11,381 | New | History |
| RNGRingCentral, Inc. | CL A | 8,517 | $332.0K | 0.1% | +95+1.1% | Added | History |
| VCELVericel Corp | COM | 7,303 | $324.9K | 0.1% | +7,303 | New | History |
| Beyond Meat, Inc.08862EAB5 | NOTE 3/1 | 381,271 | $286.0K | 0.1% | +381,271 | New | – |
| PLPlanet Labs PBC | COM CL A | 8,352 | $276.7K | 0.1% | 00.0% | Unchanged | History |
| ELVAElectrovaya Inc. | COM NEW | 26,307 | $276.2K | 0.1% | +50+0.2% | Added | History |
| RNTXRein Therapeutics, Inc. | COM NEW | 229,070 | $238.2K | <0.1% | −10,450−4.4% | Reduced | History |
| RMBSRambus Inc | COM | 1,778 | $236.0K | <0.1% | −944−34.7% | Reduced | History |
| BXBlackstone Inc. | COM | 1,940 | $228.3K | <0.1% | 00.0% | Unchanged | History |
| MSFTMicrosoft Corp | Stock | 556 | $207.4K | <0.1% | +11+2.0% | Added | History |
| ATNMActinium Pharmaceuticals, Inc. | COM | 182,142 | $178.5K | <0.1% | −19,158−9.5% | Reduced | History |
| PTENPatterson Uti Energy Inc | COM | 17,420 | $159.9K | <0.1% | −297,226−94.5% | Reduced | History |
| RDHLRedHill Biopharma Ltd. | SPONSORED ADR | 88,405 | $74.7K | <0.1% | 00.0% | Unchanged | History |
Sold out since Q1 2026 (6)
Positions held at the end of Q1 2026 that are gone from this filing.
| Security | Class | Shares in Q1 2026 | Value in Q1 2026 | % of portfolio in Q1 2026 | History |
|---|---|---|---|---|---|
| NVGSNavigator Holdings Ltd. | SHS | 886,631 | $17.1M | 4.0% | History |
| iShares Tr46436E718 | 0-3 MTH TREASURY | 92,702 | $9.33M | 2.2% | – |
| AOSLAlpha & Omega Semiconductor Ltd | SHS | 167,874 | $3.72M | 0.9% | History |
| GRSDGRANDSTAND Ltd | ORDINARY SHARES | 109,697 | $425.6K | 0.1% | History |
| EOGEOG Resources Inc | Stock | 1,851 | $267.6K | 0.1% | History |
| SVVSavers Value Village, Inc. | COM | 25,148 | $187.1K | <0.1% | History |