Gagnon Securities LLC
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 13, 2024), Gagnon Securities LLC reported 97 stock positions worth $422.5 million. Its top holding was Sumisho Air Lease (AL) at 9.1% of the portfolio, followed by Ensign (ENSG, 7.4%) and Caredx (CDNA, 5.6%). Compared with Q4 2023, it opened 6 new positions, sold out of 10, added to 42 and reduced 45. The biggest buy was Vertex Class A (VERX, shares +120%) and the biggest sale an exit from Everbridge (EVBG).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001125725
- Portfolio Value
- $422.5M (Q1 2024)
- SEC Filing
- 0001019056-24-000169 ↗ filed May 13, 2024
Holdings Value
Holdings 97 stocks · $422.5M
| AL Sumisho Air Lease Corp. filed as AIR LEASE CORP | 9.12% | 748,893 | $38.5M | Reduce -10.0% |
| ENSG The Ensign Group Inc. | 7.41% | 251,782 | $31.3M | Reduce -5.3% |
| CDNA Caredx Inc. | 5.63% | 2,245,529 | $23.8M | Add +7.1% |
| ISRG Intuitive Surgical Inc. | 4.83% | 51,140 | $20.4M | Reduce -19.2% |
| PCRX Pacira Biosciences Inc. | 3.80% | 548,968 | $16.0M | Add +0.6% |
| EPD Enterprise Products Partners | 3.55% | 514,237 | $15.0M | Reduce -5.0% |
| NVGS Navigator Holdings Ltd. | 3.37% | 926,652 | $14.2M | Reduce -15.0% |
| FIVN FIVE9 Inc. | 3.33% | 226,373 | $14.1M | Add +11.1% |
| KMX Carmax Inc. | 3.22% | 156,386 | $13.6M | Add +0.2% |
| PROF Profound Medical Corp. | 3.09% | 1,529,037 | $13.0M | Reduce -0.8% |
| CMG Chipotle Mexican Grill Inc. | 3.02% | 4,393 | $12.8M | Reduce -6.7% |
| BLFS Biolife Solutions Inc. | 2.60% | 593,392 | $11.0M | Reduce -5.4% |
| EQIX Equinix Inc. | 2.58% | 13,223 | $10.9M | Reduce -7.9% |
| FRSH Freshworks Inc. Class A | 2.56% | 592,891 | $10.8M | Add +13.3% |
| QDEL Quidelortho Corp. | 2.54% | 223,997 | $10.7M | Add +129.3% |
| BL Blackline Inc. | 2.54% | 166,045 | $10.7M | Reduce -8.4% |
| CARG Cargurus Inc. | 2.36% | 432,266 | $10.0M | Reduce -3.9% |
| ZUO Zuora Inc. Class A | 2.20% | 1,019,240 | $9.3M | Reduce -3.9% |
| SCWX Secureworks Corp. Class A | 2.08% | 1,305,405 | $8.8M | Reduce -0.6% |
| AMRC Ameresco Inc. Class A | 1.98% | 346,652 | $8.4M | Reduce -0.8% |
| CAKE The Cheesecake Factory Inc. | 1.87% | 218,766 | $7.9M | Add +1.0% |
| AOSL Alpha & Omega Semiconductor | 1.72% | 330,504 | $7.3M | Reduce -4.1% |
| ETWO E2OPEN Parent Holdings Inc. | 1.71% | 1,629,576 | $7.2M | Reduce -3.7% |
| VERX Vertex Inc. Class A | 1.64% | 218,234 | $6.9M | Add +120.4% |
| SAM Boston Beer Company Inc. Class A | 1.22% | 16,893 | $5.1M | Add +0.5% |
| WGS Genedx Holdings Corp. | 1.20% | 556,305 | $5.1M | Add +59.3% |
| EXAS Exact Sciences Corp. | 1.18% | 72,084 | $5.0M | Add +3.8% |
| GNRC Generac Holdings Inc. | 1.14% | 38,042 | $4.8M | Add +0.1% |
| CRESCENT PT ENERGY CORP | 0.91% | 471,988 | $3.9M | New |
| CTRE Caretrust REIT Inc. | 0.91% | 158,614 | $3.9M | Reduce -13.9% |
| PNTG The Pennant Group Inc. | 0.86% | 184,643 | $3.6M | Reduce -2.0% |
| PRLB Proto Labs Inc. | 0.78% | 92,533 | $3.3M | Add +0.6% |
| AKAM Akamai Technologies Inc. | 0.77% | 29,849 | $3.2M | Reduce -0.1% |
| CNF Cnfinance Hldgs Ltd. | 0.75% | 1,532,939 | $3.2M | Reduce -3.8% |
| DV Doubleverify Holdings Inc. | 0.72% | 86,018 | $3.0M | Add +1.2% |
| PSIX Power Solutions Internationa | 0.70% | 1,291,925 | $3.0M | Add +0.8% |
| ICUI Icu Medical Inc. | 0.59% | 23,120 | $2.5M | Add +3.4% |
| TPR Tapestry Inc. | 0.57% | 51,064 | $2.4M | Reduce -0.3% |
| IONQ Ionq Inc. | 0.57% | 241,276 | $2.4M | New |
| LAB Standard Biotools Inc. | 0.55% | 855,145 | $2.3M | New |
| KLTR Kaltura Inc. | 0.53% | 1,649,722 | $2.2M | Reduce -5.0% |
| GNTX Gentex Corp. | 0.51% | 59,476 | $2.1M | Reduce -0.2% |
| SLG SL Green Realty Corp. | 0.50% | 38,325 | $2.1M | Reduce -0.4% |
| PTEN Patterson-Uti Energy Inc. | 0.45% | 159,369 | $1.9M | Add +2.3% |
| MCHP Microchip Technology Inc. | 0.45% | 21,019 | $1.9M | Reduce -0.2% |
| DVN Devon Energy Corp. | 0.29% | 24,682 | $1.2M | Reduce -1.2% |
| MRVL Marvell Technology Inc. | 0.28% | 16,963 | $1.2M | Reduce -0.2% |
| CELC Celcuity Inc. | 0.27% | 53,530 | $1.2M | Reduce -0.9% |
| PFE Pfizer Inc. | 0.25% | 38,376 | $1.1M | Add +6.8% |
| T AT&T Inc. | 0.25% | 59,879 | $1.1M | Add +44.0% |
| NTDOY Nintendo Co. Ltd.-Unspons ADR | 0.25% | 77,530 | $1.1M | Reduce -0.2% |
| XOM Exxon Mobil Corp. | 0.22% | 7,868 | $915K | Reduce -15.6% |
| GNL Global Net Lease Inc. | 0.21% | 113,866 | $885K | Add +8.5% |
| WFC Wells Fargo & Co. | 0.18% | 13,056 | $757K | No change |
| FLG New York Community Bancorp | 0.16% | 211,840 | $682K | New |
| MRK Merck & Co. Inc. | 0.16% | 5,168 | $682K | Add +52.0% |
| SBUX Starbucks Corp. | 0.14% | 6,441 | $589K | Add +54.1% |
| BLZE Backblaze Inc. Class A | 0.13% | 54,624 | $559K | Add +0.4% |
| SHOP Shopify Inc. Class A | 0.13% | 7,066 | $545K | Reduce -3.4% |
| TECH Bio-Techne Corp. | 0.12% | 7,034 | $495K | Add +44.6% |
| META Meta Platforms Inc. Class A | 0.12% | 1,002 | $487K | Reduce -12.3% |
| EOG EOG Resources Inc. | 0.11% | 3,743 | $479K | Reduce -1.2% |
| WBA Walgreens Boots Alliance Inc. | 0.11% | 22,033 | $478K | Add +20.0% |
| MU Micron Technology Inc. | 0.11% | 3,906 | $460K | Reduce -2.3% |
| DRRX Durect Corporation | 0.11% | 380,131 | $460K | Add +6.0% |
| NVDA Nvidia Corp. | 0.11% | 503 | $454K | No change |
| MSFT Microsoft Corp. | 0.09% | 947 | $398K | Add +1.1% |
| GOOGL Alphabet Inc. Class A | 0.09% | 2,606 | $393K | Reduce -0.7% |
| CVLT Commvault Systems Inc. | 0.09% | 3,678 | $373K | Add +1.4% |
| GDRX Goodrx Holdings Inc. Class A | 0.09% | 52,539 | $373K | Reduce -0.2% |
| PYPL PayPal Holdings Inc. | 0.08% | 5,190 | $348K | Add +2.3% |
| CESDF Ces Energy Solutions Corp. | 0.08% | 99,387 | $345K | Reduce -0.2% |
| HIMX Himax Technologies Inc.-ADR | 0.08% | 59,803 | $320K | New |
| BX Blackstone Inc. | 0.07% | 2,411 | $317K | Add +11.9% |
| SHEL Shell PLC-ADR | 0.07% | 4,631 | $310K | Reduce -2.6% |
| ONTO Onto Innovation Inc. | 0.07% | 1,714 | $310K | Add +0.8% |
| RNTX Rein Therapeutics Inc. filed as AILERON THERAPEUTICS INC | 0.06% | 37,947 | $252K | No change |
| RBLX Roblox Corp. Class A | 0.06% | 6,453 | $246K | Reduce -1.1% |
| MODN Model N Inc. | 0.06% | 8,425 | $240K | Add +8.7% |
| MBLY Mobileye Global Inc. Class A | 0.06% | 7,368 | $237K | Add +82.5% |
| MXCT Maxcyte Inc. | 0.06% | 56,342 | $236K | Reduce -0.6% |
| ETSY Etsy Inc. | 0.05% | 3,348 | $230K | Add +26.8% |
| RNG Ringcentral Inc. Class A | 0.05% | 6,550 | $228K | Add +1.5% |
| DHX Dhi Group Inc. | 0.05% | 88,830 | $227K | Add +75.8% |
| RAMP Liveramp Holdings Inc. | 0.05% | 6,490 | $224K | Add +1.7% |
| CGNX Cognex Corp. | 0.05% | 5,125 | $217K | New |
| SHOO Steven Madden Ltd. filed as MADDEN STEVEN LTD | 0.05% | 5,047 | $213K | Reduce -9.1% |
| LTH Life Time Group Holdings Inc. | 0.05% | 13,519 | $210K | Add +0.1% |
| WBD Warner Bros Discovery Inc. | 0.04% | 21,183 | $185K | Add +0.1% |
| VIAV Viavi Solutions Inc. | 0.04% | 19,036 | $173K | Add +2.6% |
| PETS Petmed Express Inc. | 0.03% | 27,207 | $130K | Reduce -13.9% |
| YEXT Yext Inc. | 0.03% | 18,885 | $114K | Reduce -14.9% |
| APPS Digital Turbine Inc. | 0.02% | 37,244 | $98K | Add +2.1% |
| RDHL Redhill Biopharma Ltd.-SP ADR | 0.01% | 118,360 | $63K | Add +32.1% |
| EVVAQ Enviva LLC | 0.01% | 130,102 | $57K | Reduce -1.0% |
| LLFLQ LL Flooring Holdings Inc. | 0.01% | 29,248 | $54K | Reduce -43.2% |
| FTCHQ Farfetch Ltd. Class A | 0.00% | 28,295 | $283 | No change |
Other holdings (1): bonds, preferreds, convertibles and warrants · $1K (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| SOMALOGIC INC | *W EXP 08/31/202 | 140,135 | $1K | Reduce -5.0% |
Total filed on the 13F, all lines: $422.5M.
Portfolio Sells Q4 2023 → Q1 2024
| EVBG Everbridge Inc. | Sold out | 0.00% | −1.37 |
| AMRC Ameresco Inc. Class A | Reduce -0.8% | 1.98% | −0.68 |
| SLGC Somalogic Inc. | Sold out | 0.00% | −0.49 |
| NVGS Navigator Holdings Ltd. | Reduce -15.0% | 3.37% | −0.44 |
| AOSL Alpha & Omega Semiconductor | Reduce -4.1% | 1.72% | −0.43 |
| ALT Altimmune Inc. | Sold out | 0.00% | −0.30 |
| ISRG Intuitive Surgical Inc. | Reduce -19.2% | 4.83% | −0.30 |
| KLTR Kaltura Inc. | Reduce -5.0% | 0.53% | −0.29 |
| SCWX Secureworks Corp. Class A | Reduce -0.6% | 2.08% | −0.25 |
| CARG Cargurus Inc. | Reduce -3.9% | 2.36% | −0.25 |
| EQIX Equinix Inc. | Reduce -7.9% | 2.58% | −0.19 |
| ZUO Zuora Inc. Class A | Reduce -3.9% | 2.20% | −0.19 |
| BL Blackline Inc. | Reduce -8.4% | 2.54% | −0.18 |
| CNF Cnfinance Hldgs Ltd. | Reduce -3.8% | 0.75% | −0.10 |
| AKAM Akamai Technologies Inc. | Reduce -0.1% | 0.77% | −0.08 |
| CTRE Caretrust REIT Inc. | Reduce -13.9% | 0.91% | −0.08 |
| ZM Zoom Communications Inc. | Sold out | 0.00% | −0.07 |
| ETWO E2OPEN Parent Holdings Inc. | Reduce -3.7% | 1.71% | −0.07 |
| PROF Profound Medical Corp. | Reduce -0.8% | 3.09% | −0.06 |
| GILD Gilead Sciences Inc. | Sold out | 0.00% | −0.05 |
| RVLV Revolve Group Inc. Class A | Sold out | 0.00% | −0.04 |
| LLFLQ LL Flooring Holdings Inc. | Reduce -43.2% | 0.01% | −0.04 |
| GAP The Gap Inc. | Sold out | 0.00% | −0.03 |
| ADM Archer-Daniels-Midland Co. | Sold out | 0.00% | −0.03 |
| PETS Petmed Express Inc. | Reduce -13.9% | 0.03% | −0.03 |
| SYF Synchrony Financial | Sold out | 0.00% | −0.03 |
| LIVEPERSON INC | Sold out | 0.00% | −0.02 |
| EVVAQ Enviva LLC | Reduce -1.0% | 0.01% | −0.02 |
| RBLX Roblox Corp. Class A | Reduce -1.1% | 0.06% | −0.01 |
| MCHP Microchip Technology Inc. | Reduce -0.2% | 0.45% | −0.01 |
| MXCT Maxcyte Inc. | Reduce -0.6% | 0.06% | −0.01 |
| SHOP Shopify Inc. Class A | Reduce -3.4% | 0.13% | −0.01 |
| XOM Exxon Mobil Corp. | Reduce -15.6% | 0.22% | −0.01 |
| SHOO Steven Madden Ltd. | Reduce -9.1% | 0.05% | −0.01 |
| YEXT Yext Inc. | Reduce -14.9% | 0.03% | −0.00 |
| SHEL Shell PLC-ADR | Reduce -2.6% | 0.07% | −0.00 |
| EOG EOG Resources Inc. | Reduce -1.2% | 0.11% | +0.00 |
| GDRX Goodrx Holdings Inc. Class A | Reduce -0.2% | 0.09% | +0.00 |
| GOOGL Alphabet Inc. Class A | Reduce -0.7% | 0.09% | +0.01 |
| NTDOY Nintendo Co. Ltd.-Unspons ADR | Reduce -0.2% | 0.25% | +0.01 |
| META Meta Platforms Inc. Class A | Reduce -12.3% | 0.12% | +0.02 |
| CESDF Ces Energy Solutions Corp. | Reduce -0.2% | 0.08% | +0.02 |
| DVN Devon Energy Corp. | Reduce -1.2% | 0.29% | +0.02 |
| MU Micron Technology Inc. | Reduce -2.3% | 0.11% | +0.03 |
| MRVL Marvell Technology Inc. | Reduce -0.2% | 0.28% | +0.04 |
| GNTX Gentex Corp. | Reduce -0.2% | 0.51% | +0.04 |
| SLG SL Green Realty Corp. | Reduce -0.4% | 0.50% | +0.08 |
| CELC Celcuity Inc. | Reduce -0.9% | 0.27% | +0.08 |
| TPR Tapestry Inc. | Reduce -0.3% | 0.57% | +0.12 |
| EPD Enterprise Products Partners | Reduce -5.0% | 3.55% | +0.13 |
Portfolio Buys Q4 2023 → Q1 2024
| VERX Vertex Inc. Class A | Add +120.4% | 1.64% | +1.00 |
| WGS Genedx Holdings Corp. | Add +59.3% | 1.20% | +0.97 |
| CRESCENT PT ENERGY CORP | New | 0.91% | +0.91 |
| QDEL Quidelortho Corp. | Add +129.3% | 2.54% | +0.81 |
| IONQ Ionq Inc. | New | 0.57% | +0.57 |
| LAB Standard Biotools Inc. | New | 0.55% | +0.55 |
| KMX Carmax Inc. | Add +0.2% | 3.22% | +0.35 |
| FLG New York Community Bancorp | New | 0.16% | +0.16 |
| T AT&T Inc. | Add +44.0% | 0.25% | +0.08 |
| HIMX Himax Technologies Inc.-ADR | New | 0.08% | +0.08 |
| MRK Merck & Co. Inc. | Add +52.0% | 0.16% | +0.07 |
| PSIX Power Solutions Internationa | Add +0.8% | 0.70% | +0.07 |
| DRRX Durect Corporation | Add +6.0% | 0.11% | +0.06 |
| ICUI Icu Medical Inc. | Add +3.4% | 0.59% | +0.05 |
| CGNX Cognex Corp. | New | 0.05% | +0.05 |
| CAKE The Cheesecake Factory Inc. | Add +1.0% | 1.87% | +0.05 |
| PTEN Patterson-Uti Energy Inc. | Add +2.3% | 0.45% | +0.05 |
| SBUX Starbucks Corp. | Add +54.1% | 0.14% | +0.04 |
| BLZE Backblaze Inc. Class A | Add +0.4% | 0.13% | +0.03 |
| TECH Bio-Techne Corp. | Add +44.6% | 0.12% | +0.03 |
| DHX Dhi Group Inc. | Add +75.8% | 0.05% | +0.02 |
| CVLT Commvault Systems Inc. | Add +1.4% | 0.09% | +0.02 |
| MBLY Mobileye Global Inc. Class A | Add +82.5% | 0.06% | +0.01 |
| ONTO Onto Innovation Inc. | Add +0.8% | 0.07% | +0.01 |
| MSFT Microsoft Corp. | Add +1.1% | 0.09% | +0.01 |
| PYPL PayPal Holdings Inc. | Add +2.3% | 0.08% | +0.01 |
| BX Blackstone Inc. | Add +11.9% | 0.07% | +0.01 |
| MODN Model N Inc. | Add +8.7% | 0.06% | +0.01 |
| PFE Pfizer Inc. | Add +6.8% | 0.25% | +0.00 |
| ETSY Etsy Inc. | Add +26.8% | 0.05% | +0.00 |
| RNG Ringcentral Inc. Class A | Add +1.5% | 0.05% | +0.00 |
| LTH Life Time Group Holdings Inc. | Add +0.1% | 0.05% | +0.00 |
| WBA Walgreens Boots Alliance Inc. | Add +20.0% | 0.11% | −0.00 |
| VIAV Viavi Solutions Inc. | Add +2.6% | 0.04% | −0.00 |
| RAMP Liveramp Holdings Inc. | Add +1.7% | 0.05% | −0.01 |
| WBD Warner Bros Discovery Inc. | Add +0.1% | 0.04% | −0.01 |
| RDHL Redhill Biopharma Ltd.-SP ADR | Add +32.1% | 0.01% | −0.02 |
| DV Doubleverify Holdings Inc. | Add +1.2% | 0.72% | −0.03 |
| APPS Digital Turbine Inc. | Add +2.1% | 0.02% | −0.04 |
| GNL Global Net Lease Inc. | Add +8.5% | 0.21% | −0.04 |
| GNRC Generac Holdings Inc. | Add +0.1% | 1.14% | −0.04 |
| EXAS Exact Sciences Corp. | Add +3.8% | 1.18% | −0.05 |
| PRLB Proto Labs Inc. | Add +0.6% | 0.78% | −0.08 |
| SAM Boston Beer Company Inc. Class A | Add +0.5% | 1.22% | −0.18 |
| FRSH Freshworks Inc. Class A | Add +13.3% | 2.56% | −0.39 |
| CDNA Caredx Inc. | Add +7.1% | 5.63% | −0.41 |
| FIVN FIVE9 Inc. | Add +11.1% | 3.33% | −0.52 |
| PCRX Pacira Biosciences Inc. | Add +0.6% | 3.80% | −0.62 |
Notes & Other Activity Q4 2023 → Q1 2024
| SOMALOGIC INC | *W EXP 08/31/202 | Reduce -5.0% | 140,135 | $1K |
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 83 | $518.8M | CDNA, WGS, ENSG, AMRC, GNRC |
| Q1 2026 | 85 | $433.2M | ENSG, CDNA, AMRC, WGS, EPD |
| Q4 2025 | 86 | $487.0M | CDNA, WGS, AL, ENSG, AMRC |
| Q3 2025 | 86 | $498.5M | AL, ENSG, WGS, AMRC, CDNA |
| Q2 2025 | 87 | $492.4M | AL, ENSG, CDNA, ISRG, WGS |
| Q1 2025 | 98 | $454.5M | AL, ENSG, ISRG, CDNA, WGS |
| Q4 2024 | 91 | $496.3M | AL, ISRG, CDNA, ENSG, WGS |
| Q3 2024 | 102 | $504.4M | CDNA, ENSG, AL, ISRG, WGS |
| Q2 2024 | 97 | $444.0M | AL, CDNA, ENSG, ISRG, PCRX |
| Q1 2024 | 97 | $422.5M | AL, ENSG, CDNA, ISRG, PCRX |