Q4 2025 · 13F-HR
ARDSLEY ADVISORY PARTNERS LPholdings as filed
Filed 2026-02-17 · accession 0001172661-26-000864
$911.1M
Reported value
142
Positions
2025-12-31
Period end
The Brief · ARDSLEY ADVISORY PARTNERS LP · Q4 2025
AI · grounded in 13F
ARDSLEY ADVISORY PARTNERS LP established a new position in LLY valued at $42.9M. The fund also opened new stakes in TE CONNECTIVITY PLC for $16.7M and SEZZLE INC for $16.1M. On the sell side, the fund closed its position in SILICON MOTION TECHNOLOGY CO, reducing its exposure by $12.6M. Other notable activity included increasing shares of ANET by 311.7% and AVGO by 48.0%.
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 532457108 | LLY | ELI LILLY & CO | $43.0M | 4.72% | 40,000 | Common | SOLE |
| 336433107 | FSLR | FIRST SOLAR INC | $30.7M | 3.37% | 117,500 | Common | SOLE |
| 55024U109 | LITE | LUMENTUM HLDGS INC | $29.5M | 3.24% | 80,000 | Common | SOLE |
| 11135F101 | AVGO | BROADCOM INC | $29.1M | 3.19% | 84,000 | Common | SOLE |
| 86771W105 | RUN | SUNRUN INC | $27.2M | 2.99% | 1,480,000 | Common | SOLE |
| 67066G104 | NVDA | NVIDIA CORPORATION | $23.3M | 2.56% | 125,000 | Common | SOLE |
| 04016X101 | ARGX | ARGENX SE | $20.2M | 2.22% | 24,000 | Common | SOLE |
| 46428Q109 | SLV | ISHARES SILVER TR | $19.0M | 2.08% | 295,000 | Common | SOLE |
| 881624209 | TEVA | TEVA PHARMACEUTICAL INDS LTD | $18.1M | 1.99% | 580,000 | Common | SOLE |
| 02079K107 | GOOG | ALPHABET INC | $17.9M | 1.96% | 57,000 | Common | SOLE |
| 816850101 | SMTC | SEMTECH CORP | $17.5M | 1.92% | 237,000 | Common | SOLE |
| 11135F101 | AVGO | BROADCOM INC | $17.3M | 1.90% | 50,000 | CALL | SOLE |
| G87052109 | TEL | TE CONNECTIVITY PLC | $16.7M | 1.84% | 73,500 | Common | SOLE |
| 44812J104 | HUT | HUT 8 CORP | $16.5M | 1.82% | 360,000 | Common | SOLE |
| 78435P105 | SEZL | SEZZLE INC | $15.6M | 1.71% | 245,000 | Common | SOLE |
| 007973100 | AEIS | ADVANCED ENERGY INDS | $15.3M | 1.68% | 73,000 | Common | SOLE |
| 88080T104 | WULF | TERAWULF INC | $13.4M | 1.47% | 1,165,000 | Common | SOLE |
| 80004C200 | SNDK | SANDISK CORP | $13.3M | 1.46% | 56,000 | Common | SOLE |
| 10950A106 | BTSG | BRIGHTSPRING HEALTH SVCS INC | $13.1M | 1.44% | 350,000 | Common | SOLE |
| 040413205 | ANET | ARISTA NETWORKS INC | $13.1M | 1.44% | 100,000 | Common | SOLE |
| 82509L107 | SHOP | SHOPIFY INC | $12.6M | 1.39% | 78,400 | Common | SOLE |
| 023135106 | AMZN | AMAZON COM INC | $12.5M | 1.37% | 54,000 | Common | SOLE |
| 880770102 | TER | TERADYNE INC | $11.6M | 1.27% | 60,000 | Common | SOLE |
| 011532108 | AGI | ALAMOS GOLD INC NEW | $11.6M | 1.27% | 300,000 | Common | SOLE |
| 248356107 | DNN | DENISON MINES CORP | $10.9M | 1.20% | 4,100,000 | Common | SOLE |
| 594918104 | MSFT | MICROSOFT CORP | $10.7M | 1.18% | 22,200 | Common | SOLE |
| G6683N103 | NU | NU HLDGS LTD | $10.7M | 1.18% | 640,000 | Common | SOLE |
| 882508104 | TXN | TEXAS INSTRS INC | $10.4M | 1.14% | 60,000 | Common | SOLE |
| 65340P106 | NXE | NEXGEN ENERGY LTD | $10.3M | 1.14% | 1,125,000 | Common | SOLE |
| G33856108 | GSM | FERROGLOBE PLC | $9.8M | 1.08% | 2,120,000 | Common | SOLE |
| 46429B614 | SMIN | ISHARES TR | $9.8M | 1.07% | 140,000 | Common | SOLE |
| 68389X105 | ORCL | ORACLE CORP | $9.4M | 1.03% | 48,000 | CALL | SOLE |
| 042068205 | ARM | ARM HOLDINGS PLC | $9.3M | 1.02% | 85,000 | CALL | SOLE |
| 90138F102 | TWLO | TWILIO INC | $8.9M | 0.98% | 62,500 | Common | SOLE |
| 79466L302 | CRM | SALESFORCE INC | $8.7M | 0.96% | 33,000 | Common | SOLE |
| 60937P106 | MDB | MONGODB INC | $8.7M | 0.95% | 20,750 | Common | SOLE |
| G50871105 | JAZZ | JAZZ PHARMACEUTICALS PLC | $8.5M | 0.93% | 50,000 | Common | SOLE |
| 925550105 | VIAV | VIAVI SOLUTIONS INC | $7.8M | 0.86% | 440,000 | Common | SOLE |
| 60471A101 | MIR | MIRION TECHNOLOGIES INC | $7.6M | 0.84% | 325,000 | Common | SOLE |
| 01438T106 | ALDX | ALDEYRA THERAPEUTICS INC | $7.5M | 0.82% | 1,450,000 | Common | SOLE |
| 009066101 | ABNB | AIRBNB INC | $7.5M | 0.82% | 55,000 | CALL | SOLE |
| 112463104 | BKD | BROOKDALE SR LIVING INC | $7.4M | 0.82% | 690,000 | CALL | SOLE |
| 278642103 | EBAY | EBAY INC. | $7.4M | 0.81% | 85,000 | Common | SOLE |
| 464288224 | ICLN | ISHARES TR | $7.4M | 0.81% | 450,000 | CALL | SOLE |
| 697435105 | PANW | PALO ALTO NETWORKS INC | $7.4M | 0.81% | 40,000 | Common | SOLE |
| 81663L200 | WGS | GENEDX HOLDINGS CORP | $7.2M | 0.79% | 55,000 | Common | SOLE |
| 683344105 | ONTO | ONTO INNOVATION INC | $6.9M | 0.75% | 43,500 | Common | SOLE |
| 801056102 | SANM | SANMINA CORPORATION | $6.8M | 0.74% | 45,200 | Common | SOLE |
| 126650100 | CVS | CVS HEALTH CORP | $6.7M | 0.74% | 85,000 | Common | SOLE |
| 07831C103 | BRBR | BELLRING BRANDS INC | $6.4M | 0.70% | 240,000 | Common | SOLE |
| 29415C101 | EOSE | EOS ENERGY ENTERPRISES INC | $6.4M | 0.70% | 555,000 | Common | SOLE |
| 518415104 | LSCC | LATTICE SEMICONDUCTOR CORP | $6.3M | 0.69% | 86,000 | Common | SOLE |
| 88339J105 | TTD | THE TRADE DESK INC | $6.3M | 0.69% | 165,000 | PUT | SOLE |
| 68389X105 | ORCL | ORACLE CORP | $5.8M | 0.64% | 30,000 | Common | SOLE |
| 74967X103 | RH | RH | $5.4M | 0.59% | 30,000 | Common | SOLE |
| 697435105 | PANW | PALO ALTO NETWORKS INC | $5.3M | 0.59% | 29,000 | CALL | SOLE |
| 92337F107 | VCYT | VERACYTE INC | $5.3M | 0.58% | 125,000 | Common | SOLE |
| 040413205 | ANET | ARISTA NETWORKS INC | $5.2M | 0.58% | 40,000 | CALL | SOLE |
| 18539C204 | CWEN | CLEARWAY ENERGY INC | $5.0M | 0.55% | 150,000 | Common | SOLE |
| 88033G407 | THC | TENET HEALTHCARE CORP | $5.0M | 0.55% | 25,000 | Common | SOLE |
| 46138G706 | TAN | INVESCO EXCH TRADED FD TR II | $4.9M | 0.54% | 100,000 | CALL | SOLE |
| 09581B103 | OWL | BLUE OWL CAPITAL INC | $4.9M | 0.53% | 325,000 | Common | SOLE |
| 79466L302 | CRM | SALESFORCE INC | $4.8M | 0.52% | 18,000 | CALL | SOLE |
| 24703L202 | DELL | DELL TECHNOLOGIES INC | $4.5M | 0.50% | 36,000 | PUT | SOLE |
| 65341B106 | XIFR | XPLR INFRASTRUCTURE LP | $4.5M | 0.49% | 450,000 | Common | SOLE |
| 093712107 | BE | BLOOM ENERGY CORP | $4.4M | 0.49% | 51,000 | Common | SOLE |
| 23703Q203 | DQ | DAQO NEW ENERGY CORP | $4.4M | 0.49% | 150,000 | CALL | SOLE |
| 05605H100 | BWXT | BWX TECHNOLOGIES INC | $4.3M | 0.47% | 25,000 | Common | SOLE |
| 81369Y886 | XLU | SELECT SECTOR SPDR TR | $4.3M | 0.47% | 100,000 | Common | SOLE |
| 81762P102 | NOW | SERVICENOW INC | $4.1M | 0.45% | 26,500 | CALL | SOLE |
| 68628V308 | ORN | ORION GROUP HLDGS INC | $4.0M | 0.44% | 400,000 | Common | SOLE |
| 05722G100 | BKR | BAKER HUGHES COMPANY | $3.9M | 0.42% | 85,000 | Common | SOLE |
| 053611109 | AVY | AVERY DENNISON CORP | $3.8M | 0.42% | 21,000 | Common | SOLE |
| 654902204 | NOK | NOKIA CORP | $3.7M | 0.40% | 560,000 | Common | SOLE |
| 243537107 | DECK | DECKERS OUTDOOR CORP | $3.6M | 0.40% | 35,000 | Common | SOLE |
| 74319B502 | PROF | PROFOUND MED CORP | $3.5M | 0.39% | 450,000 | Common | SOLE |
| 009066101 | ABNB | AIRBNB INC | $3.5M | 0.39% | 26,000 | Common | SOLE |
| 500767306 | KWEB | KRANESHARES TRUST | $3.4M | 0.37% | 100,000 | CALL | SOLE |
| 686688102 | ORA | ORMAT TECHNOLOGIES INC | $3.3M | 0.36% | 30,000 | Common | SOLE |
| 576323109 | MTZ | MASTEC INC | $3.3M | 0.36% | 15,000 | Common | SOLE |
| 13321L108 | CCJ | CAMECO CORP | $3.2M | 0.35% | 35,000 | Common | SOLE |
| 343412102 | FLR | FLUOR CORP NEW | $3.2M | 0.35% | 79,986 | Common | SOLE |
| N6596X109 | NXPI | NXP SEMICONDUCTORS N V | $3.1M | 0.35% | 14,500 | Common | SOLE |
| 35834F104 | TE | T1 ENERGY INC | $3.1M | 0.34% | 465,000 | Common | SOLE |
| 969457100 | WMB | WILLIAMS COS INC | $3.0M | 0.33% | 50,000 | Common | SOLE |
| 801056102 | SANM | SANMINA CORPORATION | $3.0M | 0.33% | 20,000 | CALL | SOLE |
| 97785W106 | WOLF | WOLFSPEED INC | $2.9M | 0.32% | 165,000 | Common | SOLE |
| 406216101 | HAL | HALLIBURTON CO | $2.8M | 0.31% | 100,000 | Common | SOLE |
| 8676EP108 | STKL | SUNOPTA INC | $2.6M | 0.29% | 690,000 | Common | SOLE |
| 336433107 | FSLR | FIRST SOLAR INC | $2.6M | 0.29% | 10,000 | CALL | SOLE |
| 23703Q203 | DQ | DAQO NEW ENERGY CORP | $2.5M | 0.28% | 85,000 | Common | SOLE |
| 456788108 | INFY | INFOSYS LTD | $2.5M | 0.27% | 140,000 | PUT | SOLE |
| 58733R102 | MELI | MERCADOLIBRE INC | $2.4M | 0.27% | 1,200 | Common | SOLE |
| 683344105 | ONTO | ONTO INNOVATION INC | $2.4M | 0.26% | 15,000 | CALL | SOLE |
| 89346D107 | TAC | TRANSALTA CORP | $2.3M | 0.25% | 180,000 | Common | SOLE |
| 458140100 | INTC | INTEL CORP | $2.2M | 0.24% | 60,000 | CALL | SOLE |
| 64110L106 | NFLX | NETFLIX INC | $2.2M | 0.24% | 23,000 | CALL | SOLE |
| 583543301 | SLNH | SOLUNA HOLDINGS INC | $2.0M | 0.22% | 1,725,000 | Common | SOLE |
| 65339F101 | NEE | NEXTERA ENERGY INC | $2.0M | 0.22% | 25,000 | Common | SOLE |
| 458140100 | INTC | INTEL CORP | $1.9M | 0.21% | 51,000 | Common | SOLE |
| 83304A106 | SNAP | SNAP INC | $1.9M | 0.20% | 230,000 | CALL | SOLE |
| 192446102 | CTSH | COGNIZANT TECHNOLOGY SOLUTIO | $1.8M | 0.20% | 22,000 | Common | SOLE |
| 81762P102 | NOW | SERVICENOW INC | $1.8M | 0.20% | 11,850 | Common | SOLE |
| 219350105 | GLW | CORNING INC | $1.8M | 0.19% | 20,000 | PUT | SOLE |
| 41068X100 | HASI | HA SUSTAINABLE INFRA CAP INC | $1.7M | 0.19% | 55,000 | Common | SOLE |
| 896945201 | TRIP | TRIPADVISOR INC | $1.7M | 0.18% | 114,000 | Common | SOLE |
| 816850101 | SMTC | SEMTECH CORP | $1.6M | 0.18% | 22,000 | CALL | SOLE |
| 83304A106 | SNAP | SNAP INC | $1.6M | 0.18% | 200,000 | Common | SOLE |
| 00827B106 | AFRM | AFFIRM HLDGS INC | $1.6M | 0.17% | 21,000 | Common | SOLE |
| M5216V106 | GLBE | GLOBAL E ONLINE LTD | $1.5M | 0.17% | 39,000 | Common | SOLE |
| 00510N102 | TIC | TIC SOLUTIONS INC | $1.5M | 0.17% | 150,000 | Common | SOLE |
| 02361E108 | AMRC | AMERESCO INC | $1.5M | 0.16% | 50,000 | Common | SOLE |
| 896945201 | TRIP | TRIPADVISOR INC | $1.5M | 0.16% | 100,000 | CALL | SOLE |
| 29414B104 | EPAM | EPAM SYS INC | $1.4M | 0.16% | 7,000 | Common | SOLE |
| 231561101 | CW | CURTISS WRIGHT CORP | $1.4M | 0.15% | 2,500 | Common | SOLE |
| 26884L109 | EQT | EQT CORP | $1.3M | 0.15% | 25,000 | Common | SOLE |
| 30303M102 | META | META PLATFORMS INC | $1.3M | 0.14% | 2,000 | Common | SOLE |
| 465741106 | ITRI | ITRON INC | $1.3M | 0.14% | 14,000 | Common | SOLE |
| 19247G107 | COHR | COHERENT CORP | $1.3M | 0.14% | 7,000 | PUT | SOLE |
| 29355A107 | ENPH | ENPHASE ENERGY INC | $1.2M | 0.13% | 37,500 | Common | SOLE |
| 453204109 | PI | IMPINJ INC | $1.1M | 0.12% | 6,500 | Common | SOLE |
| 20464U100 | COMP | COMPASS INC | $1.1M | 0.12% | 100,000 | Common | SOLE |
| 77543R102 | ROKU | ROKU INC | $976,320 | 0.11% | 9,000 | Common | SOLE |
| 916896103 | UEC | URANIUM ENERGY CORP | $876,000 | 0.10% | 75,000 | Common | SOLE |
| 03823U102 | AAOI | APPLIED OPTOELECTRONICS INC | $871,500 | 0.10% | 25,000 | Common | SOLE |
| 573874104 | MRVL | MARVELL TECHNOLOGY INC | $849,800 | 0.09% | 10,000 | PUT | SOLE |
| 20460L104 | SPWR | SUNPOWER INC | $816,400 | 0.09% | 520,000 | Common | SOLE |
| 92840M102 | VST | VISTRA CORP | $806,600 | 0.09% | 5,000 | Common | SOLE |
| 78435P105 | SEZL | SEZZLE INC | $634,750 | 0.07% | 10,000 | CALL | SOLE |
| G1117K114 | BIOX | BIOCERES CROP SOLUTIONS CORP | $622,250 | 0.07% | 475,000 | Common | SOLE |
| 98423F109 | XMTR | XOMETRY INC | $594,700 | 0.07% | 10,000 | Common | SOLE |
| 93403J106 | WRBY | WARBY PARKER INC | $577,435 | 0.06% | 26,500 | Common | SOLE |
| 64110L106 | NFLX | NETFLIX INC | $562,740 | 0.06% | 6,000 | Common | SOLE |
| 75134P600 | METC | RAMACO RES INC | $540,000 | 0.06% | 30,000 | Common | SOLE |
| 607828100 | MOD | MODINE MFG CO | $480,636 | 0.05% | 3,600 | Common | SOLE |
| 29273V100 | ET | ENERGY TRANSFER L P | $412,250 | 0.05% | 25,000 | Common | SOLE |
| 29271Q103 | ESOA | ENERGY SVCS ACQUISITION CORP | $408,500 | 0.04% | 50,000 | Common | SOLE |
| 01438T106 | ALDX | ALDEYRA THERAPEUTICS INC | $259,000 | 0.03% | 50,000 | CALL | SOLE |
| 04271T100 | ARRY | ARRAY TECHNOLOGIES INC | $230,500 | 0.03% | 25,000 | Common | SOLE |
| 000360206 | AAON | AAON INC | $228,750 | 0.03% | 3,000 | Common | SOLE |
| 82489W107 | SHLS | SHOALS TECHNOLOGIES GROUP IN | $212,500 | 0.02% | 25,000 | Common | SOLE |
| 644393100 | NFE | NEW FORTRESS ENERGY INC | $171,000 | 0.02% | 150,000 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.