Gagnon Securities LLC
In its 13F for Q4 2024 (holdings as of December 31, 2024, filed January 24, 2025), Gagnon Securities LLC reported 91 stock positions worth $496.3 million. Its top holding was Sumisho Air Lease (AL) at 7.1% of the portfolio, followed by Intuitive Surgical (ISRG, 6.2%) and Caredx (CDNA, 6.2%). Compared with Q3 2024, it opened 3 new positions, sold out of 14, added to 34 and reduced 50. The biggest buy was FIVE9 (FIVN, shares +10%) and the biggest sale Caredx (CDNA, shares −0%).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001125725
- Portfolio Value
- $496.3M (Q4 2024)
- SEC Filing
- 0001019056-25-000034 ↗ filed Jan 24, 2025
Holdings Value
Holdings 91 stocks · $496.3M
| AL Sumisho Air Lease Corp. filed as AIR LEASE CORP | 7.14% | 734,867 | $35.4M | Add +0.2% |
| ISRG Intuitive Surgical Inc. | 6.22% | 59,161 | $30.9M | Reduce -4.7% |
| CDNA Caredx Inc. | 6.17% | 1,431,196 | $30.6M | Reduce -0.5% |
| ENSG The Ensign Group Inc. | 5.91% | 220,725 | $29.3M | Reduce -6.0% |
| WGS Genedx Holdings Corp. | 5.57% | 359,376 | $27.6M | Reduce -33.7% |
| PSIX Power Solutions Internationa | 5.10% | 850,146 | $25.3M | Reduce -16.6% |
| EPD Enterprise Products Partners | 3.15% | 498,190 | $15.6M | Reduce -0.6% |
| CARG Cargurus Inc. | 3.06% | 414,998 | $15.2M | Reduce -0.1% |
| FIVN FIVE9 Inc. | 3.00% | 366,096 | $14.9M | Add +10.4% |
| BLFS Biolife Solutions Inc. | 2.97% | 567,215 | $14.7M | Reduce -0.4% |
| EXAS Exact Sciences Corp. | 2.79% | 246,204 | $13.8M | Add +5.4% |
| AMRC Ameresco Inc. Class A | 2.70% | 571,202 | $13.4M | Add +22.5% |
| FRSH Freshworks Inc. Class A | 2.66% | 815,771 | $13.2M | Reduce -11.3% |
| TMCI Treace Medical Concepts Inc. | 2.65% | 1,767,933 | $13.2M | Reduce -0.1% |
| NVGS Navigator Holdings Ltd. | 2.64% | 852,608 | $13.1M | Add +7.3% |
| KMX Carmax Inc. | 2.62% | 159,147 | $13.0M | Add +0.2% |
| PROF Profound Medical Corp. | 2.50% | 1,652,531 | $12.4M | Add +12.6% |
| EQIX Equinix Inc. | 2.44% | 12,841 | $12.1M | Reduce -0.2% |
| BL Blackline Inc. | 2.42% | 197,278 | $12.0M | Add +6.6% |
| CAKE The Cheesecake Factory Inc. | 2.09% | 218,157 | $10.3M | Reduce -0.3% |
| VERX Vertex Inc. Class A | 1.89% | 175,810 | $9.4M | Reduce -0.7% |
| CMG Chipotle Mexican Grill Inc. | 1.80% | 148,159 | $8.9M | Reduce -0.4% |
| GNRC Generac Holdings Inc. | 1.71% | 54,682 | $8.5M | Reduce -0.1% |
| AOSL Alpha & Omega Semiconductor | 1.60% | 214,105 | $7.9M | Reduce -0.4% |
| SAM Boston Beer Company Inc. Class A | 1.35% | 22,380 | $6.7M | Reduce -0.3% |
| PCRX Pacira Biosciences Inc. | 1.22% | 321,743 | $6.1M | Add +4.8% |
| ETWO E2OPEN Parent Holdings Inc. | 1.17% | 2,182,893 | $5.8M | Add +37.6% |
| VRN Veren Inc. | 1.13% | 1,086,791 | $5.6M | Add +44.2% |
| KLTR Kaltura Inc. | 0.98% | 2,217,379 | $4.9M | Add +16.0% |
| ICUI Icu Medical Inc. | 0.90% | 28,881 | $4.5M | Add +0.5% |
| CTRE Caretrust REIT Inc. | 0.86% | 158,600 | $4.3M | Reduce -0.0% |
| NCNO Ncino Inc. | 0.84% | 124,759 | $4.2M | New |
| PNTG The Pennant Group Inc. | 0.84% | 156,774 | $4.2M | Reduce -3.7% |
| QDEL Quidelortho Corp. | 0.82% | 91,060 | $4.1M | Add +45.4% |
| PRLB Proto Labs Inc. | 0.73% | 93,079 | $3.6M | Reduce -0.2% |
| TPR Tapestry Inc. | 0.62% | 47,064 | $3.1M | Reduce -7.3% |
| AKAM Akamai Technologies Inc. | 0.57% | 29,552 | $2.8M | Add +0.8% |
| NVDA Nvidia Corp. | 0.54% | 19,952 | $2.7M | Reduce -3.0% |
| DV Doubleverify Holdings Inc. | 0.48% | 123,901 | $2.4M | Reduce -36.8% |
| SLG SL Green Realty Corp. | 0.41% | 30,277 | $2.1M | Reduce -5.0% |
| SCWX Secureworks Corp. Class A | 0.34% | 197,193 | $1.7M | Reduce -86.8% |
| GNTX Gentex Corp. | 0.33% | 57,774 | $1.7M | Reduce -1.3% |
| CNF Cnfinance Hldgs Ltd. | 0.32% | 1,688,732 | $1.6M | Add +4.8% |
| MRVL Marvell Technology Inc. | 0.31% | 14,045 | $1.6M | Reduce -10.7% |
| PTEN Patterson-Uti Energy Inc. | 0.27% | 159,770 | $1.3M | Add +0.1% |
| NTDOY Nintendo Co. Ltd.-Unspons ADR | 0.22% | 75,506 | $1.1M | Reduce -1.8% |
| MCHP Microchip Technology Inc. | 0.22% | 18,857 | $1.1M | Reduce -3.0% |
| DVN Devon Energy Corp. | 0.20% | 30,583 | $1.0M | Add +40.5% |
| FLG Flagstar Bank NA | 0.19% | 102,250 | $954K | No change |
| PFE Pfizer Inc. | 0.19% | 35,476 | $941K | Reduce -4.7% |
| T AT&T Inc. | 0.18% | 39,388 | $897K | Reduce -9.0% |
| MXCT Maxcyte Inc. | 0.17% | 197,326 | $821K | Add +234.1% |
| SBUX Starbucks Corp. | 0.16% | 8,633 | $788K | No change |
| XOM Exxon Mobil Corp. | 0.15% | 7,140 | $768K | Reduce -5.8% |
| GNL Global Net Lease Inc. | 0.15% | 105,073 | $767K | Reduce -4.8% |
| CELC Celcuity Inc. | 0.14% | 52,479 | $687K | Reduce -0.6% |
| SHOP Shopify Inc. Class A | 0.12% | 5,709 | $607K | Reduce -22.2% |
| META Meta Platforms Inc. Class A | 0.12% | 983 | $576K | Reduce -0.1% |
| TECH Bio-Techne Corp. | 0.11% | 7,858 | $566K | Add +6.6% |
| PYPL PayPal Holdings Inc. | 0.11% | 6,539 | $558K | Add +1.3% |
| WEAV Weave Communications Inc. | 0.11% | 32,940 | $524K | New |
| GOOGL Alphabet Inc. Class A | 0.10% | 2,610 | $494K | No change |
| CVLT Commvault Systems Inc. | 0.09% | 2,907 | $439K | Add +1.9% |
| HIMX Himax Technologies Inc.-ADR | 0.09% | 54,380 | $437K | Reduce -4.8% |
| LTH Life Time Group Holdings Inc. | 0.09% | 19,226 | $425K | Reduce -0.2% |
| MRK Merck & Co. Inc. | 0.08% | 4,073 | $405K | Reduce -5.5% |
| BX Blackstone Inc. | 0.07% | 2,011 | $347K | Reduce -14.8% |
| BLZE Backblaze Inc. Class A | 0.07% | 55,422 | $334K | Add +0.4% |
| GDRX Goodrx Holdings Inc. Class A | 0.07% | 69,867 | $325K | Add +9.8% |
| MBLY Mobileye Global Inc. Class A | 0.06% | 16,139 | $321K | Add +0.8% |
| CESDF Ces Energy Solutions Corp. | 0.06% | 46,180 | $319K | Reduce -2.1% |
| EOG EOG Resources Inc. | 0.06% | 2,593 | $318K | Reduce -0.1% |
| GRSD Grandstand Ltd. filed as GAMBLING COM GROUP LIMITED | 0.06% | 22,508 | $317K | New |
| DRRX Durect Corporation | 0.06% | 402,013 | $302K | Add +2.1% |
| MSFT Microsoft Corp. | 0.06% | 680 | $287K | Add +10.6% |
| ETSY Etsy Inc. | 0.05% | 5,148 | $272K | Add +7.9% |
| RNG Ringcentral Inc. Class A | 0.05% | 7,703 | $270K | Add +5.6% |
| CGNX Cognex Corp. | 0.05% | 7,387 | $265K | Add +41.6% |
| MU Micron Technology Inc. | 0.05% | 3,137 | $264K | Reduce -0.1% |
| ONTO Onto Innovation Inc. | 0.05% | 1,457 | $243K | Add +8.4% |
| VIAV Viavi Solutions Inc. | 0.05% | 23,949 | $242K | Add +23.1% |
| IONQ Ionq Inc. | 0.05% | 5,764 | $241K | Reduce -97.6% |
| WFC Wells Fargo & Co. | 0.04% | 3,056 | $215K | No change |
| WBD Warner Bros Discovery Inc. | 0.04% | 18,717 | $198K | Reduce -0.3% |
| WBA Walgreens Boots Alliance Inc. | 0.04% | 20,354 | $190K | Reduce -4.7% |
| APPS Digital Turbine Inc. | 0.04% | 104,123 | $176K | Add +99.0% |
| RNTX Rein Therapeutics Inc. filed as AILERON THERAPEUTICS INC | 0.03% | 71,745 | $165K | Reduce -0.0% |
| PETS Petmed Express Inc. | 0.02% | 24,530 | $118K | Reduce -5.6% |
| DHX Dhi Group Inc. | 0.02% | 49,784 | $88K | Add +8.7% |
| YEXT Yext Inc. | 0.02% | 13,332 | $85K | Reduce -29.0% |
| LAB Standard Biotools Inc. | 0.01% | 23,930 | $42K | Reduce -60.4% |
Portfolio Sells Q3 2024 → Q4 2024
| CDNA Caredx Inc. | Reduce -0.5% | 6.17% | −2.73 |
| SCWX Secureworks Corp. Class A | Reduce -86.8% | 0.34% | −2.29 |
| ZUO Zuora Inc. Class A | Sold out | 0.00% | −1.79 |
| ENSG The Ensign Group Inc. | Reduce -6.0% | 5.91% | −0.79 |
| IONQ Ionq Inc. | Reduce -97.6% | 0.05% | −0.37 |
| PNTG The Pennant Group Inc. | Reduce -3.7% | 0.84% | −0.31 |
| DV Doubleverify Holdings Inc. | Reduce -36.8% | 0.48% | −0.18 |
| CTRE Caretrust REIT Inc. | Reduce -0.0% | 0.86% | −0.11 |
| INTC Intel Corp. | Sold out | 0.00% | −0.10 |
| MCHP Microchip Technology Inc. | Reduce -3.0% | 0.22% | −0.09 |
| RBLX Roblox Corp. Class A | Sold out | 0.00% | −0.06 |
| OCDGF Ocado Group PLC | Sold out | 0.00% | −0.05 |
| SHOO Steven Madden Ltd. | Sold out | 0.00% | −0.04 |
| ARC Arc Document Solutions Inc. | Sold out | 0.00% | −0.04 |
| RAMP Liveramp Holdings Inc. | Sold out | 0.00% | −0.04 |
| GAP The Gap Inc. | Sold out | 0.00% | −0.04 |
| ABNB Airbnb Inc. Class A | Sold out | 0.00% | −0.03 |
| GNL Global Net Lease Inc. | Reduce -4.8% | 0.15% | −0.03 |
| SLG SL Green Realty Corp. | Reduce -5.0% | 0.41% | −0.03 |
| CPRI Capri Holdings Ltd. | Sold out | 0.00% | −0.02 |
| SYF Synchrony Financial | Sold out | 0.00% | −0.02 |
| PFE Pfizer Inc. | Reduce -4.7% | 0.19% | −0.02 |
| ADM Archer-Daniels-Midland Co. | Sold out | 0.00% | −0.02 |
| XOM Exxon Mobil Corp. | Reduce -5.8% | 0.15% | −0.02 |
| CELC Celcuity Inc. | Reduce -0.6% | 0.14% | −0.02 |
| RNTX Rein Therapeutics Inc. | Reduce -0.0% | 0.03% | −0.02 |
| GNRC Generac Holdings Inc. | Reduce -0.1% | 1.71% | −0.02 |
| MRK Merck & Co. Inc. | Reduce -5.5% | 0.08% | −0.02 |
| LAB Standard Biotools Inc. | Reduce -60.4% | 0.01% | −0.01 |
| MU Micron Technology Inc. | Reduce -0.1% | 0.05% | −0.01 |
| GNTX Gentex Corp. | Reduce -1.3% | 0.33% | −0.01 |
| LUXE Luxexperience BV | Sold out | 0.00% | −0.01 |
| YEXT Yext Inc. | Reduce -29.0% | 0.02% | −0.01 |
| T AT&T Inc. | Reduce -9.0% | 0.18% | −0.01 |
| LESLIES INC | Sold out | 0.00% | −0.01 |
| LTH Life Time Group Holdings Inc. | Reduce -0.2% | 0.09% | −0.01 |
| BX Blackstone Inc. | Reduce -14.8% | 0.07% | −0.00 |
| WBA Walgreens Boots Alliance Inc. | Reduce -4.7% | 0.04% | +0.00 |
| EOG EOG Resources Inc. | Reduce -0.1% | 0.06% | +0.00 |
| META Meta Platforms Inc. Class A | Reduce -0.1% | 0.12% | +0.00 |
| PETS Petmed Express Inc. | Reduce -5.6% | 0.02% | +0.00 |
| SHOP Shopify Inc. Class A | Reduce -22.2% | 0.12% | +0.01 |
| WBD Warner Bros Discovery Inc. | Reduce -0.3% | 0.04% | +0.01 |
| CESDF Ces Energy Solutions Corp. | Reduce -2.1% | 0.06% | +0.01 |
| AOSL Alpha & Omega Semiconductor | Reduce -0.4% | 1.60% | +0.02 |
| NTDOY Nintendo Co. Ltd.-Unspons ADR | Reduce -1.8% | 0.22% | +0.02 |
| HIMX Himax Technologies Inc.-ADR | Reduce -4.8% | 0.09% | +0.03 |
| NVDA Nvidia Corp. | Reduce -3.0% | 0.54% | +0.04 |
| SAM Boston Beer Company Inc. Class A | Reduce -0.3% | 1.35% | +0.07 |
| MRVL Marvell Technology Inc. | Reduce -10.7% | 0.31% | +0.09 |
Portfolio Buys Q3 2024 → Q4 2024
| FIVN FIVE9 Inc. | Add +10.4% | 3.00% | +1.11 |
| NCNO Ncino Inc. | New | 0.84% | +0.84 |
| AL Sumisho Air Lease Corp. | Add +0.2% | 7.14% | +0.55 |
| KLTR Kaltura Inc. | Add +16.0% | 0.98% | +0.47 |
| BL Blackline Inc. | Add +6.6% | 2.42% | +0.39 |
| PCRX Pacira Biosciences Inc. | Add +4.8% | 1.22% | +0.31 |
| QDEL Quidelortho Corp. | Add +45.4% | 0.82% | +0.25 |
| VRN Veren Inc. | Add +44.2% | 1.13% | +0.21 |
| KMX Carmax Inc. | Add +0.2% | 2.62% | +0.18 |
| PROF Profound Medical Corp. | Add +12.6% | 2.50% | +0.18 |
| MXCT Maxcyte Inc. | Add +234.1% | 0.17% | +0.12 |
| WEAV Weave Communications Inc. | New | 0.11% | +0.11 |
| NVGS Navigator Holdings Ltd. | Add +7.3% | 2.64% | +0.10 |
| GRSD Grandstand Ltd. | New | 0.06% | +0.06 |
| DVN Devon Energy Corp. | Add +40.5% | 0.20% | +0.03 |
| PTEN Patterson-Uti Energy Inc. | Add +0.1% | 0.27% | +0.02 |
| MBLY Mobileye Global Inc. Class A | Add +0.8% | 0.06% | +0.02 |
| VIAV Viavi Solutions Inc. | Add +23.1% | 0.05% | +0.01 |
| PYPL PayPal Holdings Inc. | Add +1.3% | 0.11% | +0.01 |
| CGNX Cognex Corp. | Add +41.6% | 0.05% | +0.01 |
| RNG Ringcentral Inc. Class A | Add +5.6% | 0.05% | +0.01 |
| MSFT Microsoft Corp. | Add +10.6% | 0.06% | +0.01 |
| APPS Digital Turbine Inc. | Add +99.0% | 0.04% | +0.00 |
| ETSY Etsy Inc. | Add +7.9% | 0.05% | +0.00 |
| CVLT Commvault Systems Inc. | Add +1.9% | 0.09% | +0.00 |
| DHX Dhi Group Inc. | Add +8.7% | 0.02% | +0.00 |
| BLZE Backblaze Inc. Class A | Add +0.4% | 0.07% | −0.00 |
| TECH Bio-Techne Corp. | Add +6.6% | 0.11% | −0.00 |
| ONTO Onto Innovation Inc. | Add +8.4% | 0.05% | −0.01 |
| AKAM Akamai Technologies Inc. | Add +0.8% | 0.57% | −0.02 |
| GDRX Goodrx Holdings Inc. Class A | Add +9.8% | 0.07% | −0.02 |
| DRRX Durect Corporation | Add +2.1% | 0.06% | −0.04 |
| CNF Cnfinance Hldgs Ltd. | Add +4.8% | 0.32% | −0.08 |
| ICUI Icu Medical Inc. | Add +0.5% | 0.90% | −0.14 |
| ETWO E2OPEN Parent Holdings Inc. | Add +37.6% | 1.17% | −0.22 |
| EXAS Exact Sciences Corp. | Add +5.4% | 2.79% | −0.37 |
| AMRC Ameresco Inc. Class A | Add +22.5% | 2.70% | −0.81 |
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 |