Gagnon Securities Llc Portfolio Stock Holdings
Gagnon Securities Llc disclosed 83 stock positions valued at approximately $518.8 million in its latest SEC 13F filing. The largest holdings include CAREDX INC, GENEDX HOLDINGS CORP, and ENSIGN GROUP INC. The filing reflects positions held as of June 30, 2026 and was filed on August 5, 2026.
- Report Period
- June 30, 2026
- No. of Stocks
- 83
- Portfolio Value
- $518.8M
Holdings by Sector
Gagnon Securities Llc Portfolio Holdings in Q2 2026
77 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| CAREDX INC | CDNA | Healthcare | 9.73% | 1,770,735 | +8,861 | +0.50% | $50,465,960 |
| GENEDX HOLDINGS CORP | WGS | Healthcare | 6.94% | 524,865 | +221,716 | +73.14% | $36,031,982 |
| ENSIGN GROUP INC | ENSG | Healthcare | 5.37% | 173,911 | -5,760 | -3.21% | $27,877,933 |
| AMERESCO INC | AMRC | Industrials | 4.40% | 826,562 | -13,501 | -1.61% | $22,813,111 |
| GENERAC HLDGS INC | GNRC | Industrials | 4.13% | 73,170 | -1,743 | -2.33% | $21,424,908 |
| ENTERPRISE PRODS PARTNERS L P | EPD | Energy | 3.62% | 510,576 | -3,681 | -0.72% | $18,768,774 |
| QUIDELORTHO CORP | QDEL | Healthcare | 3.48% | 1,030,371 | +627,046 | +155.47% | $18,046,948 |
| CHEESECAKE FACTORY INC | CAKE | Consumer Cyclical | 3.40% | 221,792 | -3,256 | -1.45% | $17,641,336 |
| EQUINIX INC | EQIX | Real Estate | 3.36% | 16,720 | -231 | -1.36% | $17,428,761 |
| CARMAX INC | KMX | Consumer Cyclical | 3.32% | 325,410 | +15,711 | +5.07% | $17,210,935 |
| FRESHWORKS INC | FRSH | Technology | 3.05% | 1,563,866 | -167,501 | -9.67% | $15,826,324 |
| PACIRA BIOSCIENCES INC | PCRX | Healthcare | 2.98% | 608,617 | -8,893 | -1.44% | $15,440,613 |
| FIVE9 INC | FIVN | Technology | 2.97% | 722,698 | +100,634 | +16.18% | $15,407,921 |
| HINGE HEALTH INC | 433313103 | Other | 2.93% | 182,959 | +58,709 | +47.25% | $15,185,597 |
| BIOLIFE SOLUTIONS INC | BLFS | Healthcare | 2.92% | 535,906 | -606 | -0.11% | $15,133,985 |
| PROFOUND MED CORP | PROF | Healthcare | 2.51% | 1,960,074 | +15,750 | +0.81% | $13,034,492 |
| CARGURUS INC | CARG | Consumer Cyclical | 2.41% | 367,073 | +95,549 | +35.19% | $12,513,519 |
| TREACE MED CONCEPTS INC | TMCI | Healthcare | 2.32% | 3,029,543 | -2,172,343 | -41.76% | $12,057,581 |
| INTUITIVE SURGICAL INC | ISRG | Healthcare | 2.23% | 29,144 | -2,475 | -7.83% | $11,589,991 |
| BLACKLINE INC | BL | Technology | 2.03% | 375,769 | +79,345 | +26.77% | $10,547,836 |
| ASPEN AEROGELS INC | ASPN | Industrials | 1.88% | 1,535,812 | -326,039 | -17.51% | $9,737,048 |
| PROTO LABS INC | PRLB | Industrials | 1.83% | 116,283 | +5,394 | +4.86% | $9,478,227 |
| VERTEX INC | VERX | Technology | 1.68% | 761,026 | +292,806 | +62.54% | $8,736,578 |
| AMPLITUDE INC | AMPL | Technology | 1.56% | 1,055,508 | -4,328 | -0.41% | $8,074,636 |
| MarineMax Inc | HZO | Consumer Cyclical | 1.49% | 211,480 | -9,130 | -4.14% | $7,744,398 |
| OraSure Technologies Inc | OSUR | Healthcare | 1.37% | 1,592,147 | -122,244 | -7.13% | $7,100,976 |
| DOUBLEVERIFY HLDGS INC | DV | Technology | 1.09% | 523,328 | +34,866 | +7.14% | $5,672,876 |
| CELCUITY INC | CELC | Healthcare | 1.07% | 53,240 | -102 | -0.19% | $5,569,969 |
| CHIPOTLE MEXICAN GRILL INC | CMG | Consumer Cyclical | 1.02% | 155,463 | -2,386 | -1.51% | $5,285,742 |
| CARETRUST REIT INC | CTRE | Real Estate | 1.01% | 129,955 | -3,091 | -2.32% | $5,243,684 |
| PENNANT GROUP INC | PNTG | Healthcare | 0.96% | 135,035 | -2,449 | -1.78% | $4,989,543 |
| ICU MED INC | ICUI | Healthcare | 0.83% | 29,400 | -343 | -1.15% | $4,310,040 |
| KALTURA INC | KLTR | Technology | 0.82% | 3,266,999 | -11,937 | -0.36% | $4,247,099 |
| MICROCHIP TECHNOLOGY INC. | MCHP | Technology | 0.46% | 26,229 | -609 | -2.27% | $2,392,102 |
| GENTEX CORP | GNTX | Consumer Cyclical | 0.28% | 57,159 | +226 | +0.40% | $1,444,419 |
| GLOBAL NET LEASE INC | GNL | Real Estate | 0.28% | 160,598 | -9,527 | -5.60% | $1,435,746 |
| SL GREEN RLTY CORP | SLG | Real Estate | 0.26% | 25,862 | - | - | $1,338,876 |
| BOSTON BEER INC | SAM | Consumer Defensive | 0.25% | 7,283 | +44 | +0.61% | $1,289,309 |
| NCINO INC | NCNO | Technology | 0.24% | 75,333 | -4,187 | -5.27% | $1,231,695 |
| FLAGSTAR BANK NATIONAL ASSOCIA | NYCB | Other | 0.21% | 74,456 | -255 | -0.34% | $1,112,372 |
| DIGITAL TURBINE INC | APPS | Technology | 0.20% | 81,839 | - | - | $1,055,723 |
| WEBULL CORP | WEAV | Healthcare | 0.19% | 157,170 | +14,923 | +10.49% | $998,703 |
| DOCUSIGN INC | DOCU | Technology | 0.18% | 20,906 | -326 | -1.54% | $928,645 |
| ALPHABET INC | GOOGL | Communication Services | 0.18% | 2,556 | - | - | $913,438 |
| MARVELL TECHNOLOGY INC | MRVL | Technology | 0.17% | 2,923 | -3,902 | -57.17% | $870,734 |
| Bio-Techne Corp | TECH | Healthcare | 0.17% | 12,230 | +2,351 | +23.80% | $864,050 |
| DEVON ENERGY CORP | DVN | Energy | 0.15% | 19,021 | -45 | -0.24% | $785,948 |
| MICRON TECHNOLOGY INC | MU | Technology | 0.15% | 679 | -398 | -36.95% | $783,763 |
| NINTENDO LTD | NTDOY | Communication Services | 0.14% | 70,675 | +978 | +1.40% | $740,674 |
| Cognex Corp | CGNX | Technology | 0.14% | 9,798 | +18 | +0.18% | $709,571 |
| NVIDIA CORPORATION | NVDA | Technology | 0.13% | 3,498 | -157 | -4.30% | $699,915 |
| COMMVAULT SYS INC | CVLT | Technology | 0.13% | 4,874 | +498 | +11.38% | $690,792 |
| ALPHABET INC | GOOG | Communication Services | 0.13% | 1,929 | -5 | -0.26% | $681,574 |
| ONTO INNOVATION INC | ONTO | Technology | 0.12% | 1,709 | -533 | -23.77% | $646,771 |
| AT&T INC | T | Communication Services | 0.12% | 30,898 | -1,196 | -3.73% | $639,589 |
| HIMAX TECHNOLOGIES INC | HIMX | Technology | 0.12% | 39,498 | -5,275 | -11.78% | $605,899 |
| PFIZER INC | PFE | Healthcare | 0.11% | 23,346 | -20,914 | -47.25% | $562,172 |
| LIFE TIME GROUP HOLDINGS INC | LTH | Consumer Cyclical | 0.11% | 13,465 | -85 | -0.63% | $549,911 |
| MACOM TECH SOLUTIONS HLDGS INC | MTSI | Technology | 0.09% | 1,281 | -2,389 | -65.10% | $487,254 |
| VIAVI SOLUTIONS INC | VIAV | Technology | 0.09% | 9,986 | -4,525 | -31.18% | $476,832 |
| META PLATFORMS INC | META | Communication Services | 0.09% | 839 | - | - | $472,600 |
| SHOPIFY INC | SHOP | Technology | 0.09% | 4,023 | +91 | +2.31% | $459,346 |
| ETSY INC | ETSY | Consumer Cyclical | 0.08% | 5,755 | -18 | -0.31% | $433,524 |
| STARBUCKS CORP | SBUX | Consumer Cyclical | 0.08% | 4,045 | -26 | -0.64% | $413,359 |
| MERCK & CO INC | MRK | Healthcare | 0.08% | 3,187 | -5 | -0.16% | $409,530 |
| AKAMAI TECHNOLOGIES INC | AKAM | Technology | 0.07% | 3,163 | +267 | +9.22% | $373,898 |
| WARBY PARKER INC | WRBY | Healthcare | 0.07% | 11,381 | +11,381 | +100.00% | $345,300 |
| RINGCENTRAL INC | RNG | Technology | 0.06% | 8,517 | +95 | +1.13% | $331,993 |
| VERICEL CORP | VCEL | Healthcare | 0.06% | 7,303 | +7,303 | +100.00% | $324,910 |
| PLANET LABS PBC | PL | Industrials | 0.05% | 8,352 | - | - | $276,702 |
| ELECTROVAYA INC | ELVA | Industrials | 0.05% | 26,307 | +50 | +0.19% | $276,224 |
| REIN THERAPEUTICS INC | ALRN | Healthcare | 0.05% | 229,070 | -10,450 | -4.36% | $238,233 |
| RAMBUS INC DEL | RMBS | Technology | 0.05% | 1,778 | -944 | -34.68% | $236,012 |
| BLACKSTONE INC | BX | Financial Services | 0.04% | 1,940 | - | - | $228,280 |
| MICROSOFT CORP | MSFT | Technology | 0.04% | 556 | +11 | +2.02% | $207,399 |
| ACTINIUM PHARMACEUTICALS INC | ATNM | Healthcare | 0.03% | 182,142 | -19,158 | -9.52% | $178,499 |
| PATTERSON-UTI ENERGY INC | PTEN | Energy | 0.03% | 17,420 | -297,226 | -94.46% | $159,916 |