Q1 2026 · 13F-HR
ARDSLEY ADVISORY PARTNERS LPholdings as filed
Filed 2026-05-15 · accession 0001172661-26-002039
$784.4M
Reported value
151
Positions
2026-03-31
Period end
The Brief · ARDSLEY ADVISORY PARTNERS LP · Q1 2026
AI · grounded in 13F
ARDSLEY ADVISORY PARTNERS LP closed its position in FSLR, reducing exposure by $33.3M. The fund established new positions in SPY for $31.9M and UNITED THERAPEUTICS CORP DEL for $29.6M. Additionally, the manager increased share counts in MOD by 2,430.6% and META by 1,300%.
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 78462F103 | SPY | STATE STR SPDR S&P 500 ETF T | $31.9M | 4.06% | 49,000 | CALL | SOLE |
| 91307C102 | UTHR | UNITED THERAPEUTICS CORP DEL | $29.6M | 3.78% | 50,000 | Common | SOLE |
| 11135F101 | AVGO | BROADCOM INC | $27.7M | 3.53% | 89,500 | Common | SOLE |
| 80004C200 | SNDK | SANDISK CORP | $26.7M | 3.41% | 42,000 | Common | SOLE |
| 023135106 | AMZN | AMAZON COM INC | $22.1M | 2.81% | 106,000 | Common | SOLE |
| 040413205 | ANET | ARISTA NETWORKS INC | $21.3M | 2.72% | 173,700 | Common | SOLE |
| 816850101 | SMTC | SEMTECH CORP | $19.9M | 2.54% | 258,750 | Common | SOLE |
| 607828100 | MOD | MODINE MFG CO | $19.7M | 2.52% | 91,100 | Common | SOLE |
| 78435P105 | SEZL | SEZZLE INC | $19.0M | 2.42% | 300,000 | Common | SOLE |
| 881624209 | TEVA | TEVA PHARMACEUTICAL INDS LTD | $16.7M | 2.13% | 555,000 | Common | SOLE |
| 30303M102 | META | META PLATFORMS INC | $16.0M | 2.04% | 28,000 | Common | SOLE |
| 11135F101 | AVGO | BROADCOM INC | $15.5M | 1.97% | 50,000 | CALL | SOLE |
| 86771W105 | RUN | SUNRUN INC | $15.4M | 1.96% | 1,135,000 | Common | SOLE |
| 67066G104 | NVDA | NVIDIA CORPORATION | $15.3M | 1.95% | 87,500 | Common | SOLE |
| 88080T104 | WULF | TERAWULF INC | $15.1M | 1.93% | 1,050,000 | Common | SOLE |
| 10950A106 | BTSG | BRIGHTSPRING HEALTH SVCS INC | $14.9M | 1.90% | 350,000 | Common | SOLE |
| 82489W107 | SHLS | SHOALS TECHNOLOGIES GROUP IN | $14.9M | 1.90% | 2,260,000 | Common | SOLE |
| 925550105 | VIAV | VIAVI SOLUTIONS INC | $13.3M | 1.70% | 400,000 | Common | SOLE |
| 278642103 | EBAY | EBAY INC. | $12.8M | 1.63% | 140,500 | Common | SOLE |
| 00162Q452 | AMLP | ALPS ETF TR | $10.5M | 1.34% | 200,000 | Common | SOLE |
| 023135106 | AMZN | AMAZON COM INC | $10.0M | 1.27% | 48,000 | CALL | SOLE |
| G6683N103 | NU | NU HLDGS LTD | $9.7M | 1.24% | 675,000 | Common | SOLE |
| 112463104 | BKD | BROOKDALE SR LIVING INC | $9.4M | 1.20% | 690,000 | CALL | SOLE |
| 101137107 | BSX | BOSTON SCIENTIFIC CORP | $9.4M | 1.20% | 150,000 | Common | SOLE |
| 02079K107 | GOOG | ALPHABET INC | $8.6M | 1.10% | 30,000 | Common | SOLE |
| 038222105 | AMAT | APPLIED MATLS INC | $8.5M | 1.09% | 25,000 | Common | SOLE |
| 80004C200 | SNDK | SANDISK CORP | $8.3M | 1.05% | 13,000 | CALL | SOLE |
| 29444U700 | EQIX | EQUINIX INC | $7.8M | 0.99% | 7,950 | Common | SOLE |
| 011532108 | AGI | ALAMOS GOLD INC | $7.8M | 0.99% | 175,000 | Common | SOLE |
| 037833100 | AAPL | APPLE INC | $7.6M | 0.97% | 30,000 | PUT | SOLE |
| 81762P102 | NOW | SERVICENOW INC | $7.6M | 0.97% | 72,500 | Common | SOLE |
| 518415104 | LSCC | LATTICE SEMICONDUCTOR CORP | $7.6M | 0.96% | 81,500 | Common | SOLE |
| 44812J104 | HUT | HUT 8 CORP | $7.0M | 0.90% | 150,000 | Common | SOLE |
| 053611109 | AVY | AVERY DENNISON CORP | $6.9M | 0.88% | 40,000 | Common | SOLE |
| 81369Y886 | XLU | SELECT SECTOR SPDR TR | $6.9M | 0.88% | 150,000 | Common | SOLE |
| 98980L101 | ZNGA | ZOOM COMMUNICATIONS INC | $6.7M | 0.85% | 83,000 | Common | SOLE |
| 92343V104 | VZ | VERIZON COMMUNICATIONS INC | $6.5M | 0.83% | 130,000 | Common | SOLE |
| 81663L200 | WGS | GENEDX HOLDINGS CORP | $6.4M | 0.82% | 100,000 | Common | SOLE |
| 126650100 | CVS | CVS HEALTH CORP | $6.1M | 0.78% | 85,000 | Common | SOLE |
| 011659109 | ALK | ALASKA AIR GROUP INC | $6.1M | 0.77% | 165,000 | Common | SOLE |
| 60471A101 | MIR | MIRION TECHNOLOGIES INC | $6.0M | 0.77% | 325,000 | Common | SOLE |
| 90138F102 | TWLO | TWILIO INC | $5.9M | 0.76% | 47,200 | Common | SOLE |
| 17253J106 | CIFR | CIPHER DIGITAL INC | $5.8M | 0.74% | 450,000 | Common | SOLE |
| 595112103 | MU | MICRON TECHNOLOGY INC | $5.7M | 0.73% | 17,000 | CALL | SOLE |
| 10316T104 | BOX | BOX INC | $5.6M | 0.71% | 236,000 | Common | SOLE |
| 18539C204 | CWEN | CLEARWAY ENERGY INC | $5.5M | 0.70% | 140,000 | Common | SOLE |
| 679295105 | OKTA | OKTA INC | $5.3M | 0.68% | 67,600 | Common | SOLE |
| 83056P715 | SKE | SKEENA RES LTD NEW | $5.2M | 0.66% | 175,000 | Common | SOLE |
| 05605H100 | BWXT | BWX TECHNOLOGIES INC | $5.1M | 0.65% | 25,000 | Common | SOLE |
| 032654105 | ADI | ANALOG DEVICES INC | $5.1M | 0.65% | 16,000 | Common | SOLE |
| 65341B106 | XIFR | XPLR INFRASTRUCTURE LP | $5.0M | 0.64% | 475,000 | Common | SOLE |
| 248356107 | DNN | DENISON MINES CORP | $4.9M | 0.63% | 1,400,000 | Common | SOLE |
| 595112103 | MU | MICRON TECHNOLOGY INC | $4.7M | 0.60% | 14,000 | Common | SOLE |
| 532457108 | LLY | ELI LILLY & CO | $4.6M | 0.59% | 5,000 | Common | SOLE |
| 55024U109 | LITE | LUMENTUM HLDGS INC | $4.4M | 0.56% | 6,200 | Common | SOLE |
| 03676C100 | ATEX | ANTERIX INC | $4.2M | 0.54% | 110,000 | Common | SOLE |
| 92337F107 | VCYT | VERACYTE INC | $4.0M | 0.51% | 125,000 | Common | SOLE |
| 77543R102 | ROKU | ROKU INC | $3.9M | 0.50% | 41,500 | Common | SOLE |
| 29444U700 | EQIX | EQUINIX INC | $3.9M | 0.50% | 4,000 | CALL | SOLE |
| 343412102 | FLR | FLUOR CORP | $3.8M | 0.49% | 82,500 | Common | SOLE |
| 64110L106 | NFLX | NETFLIX INC. | $3.8M | 0.49% | 40,000 | Common | SOLE |
| 000899104 | ADMA | ADMA BIOLOGICS INC | $3.8M | 0.49% | 425,000 | Common | SOLE |
| 438516106 | HON | HONEYWELL INTL INC | $3.7M | 0.48% | 16,500 | Common | SOLE |
| 74319B502 | PROF | PROFOUND MED CORP | $3.7M | 0.48% | 575,000 | Common | SOLE |
| 42824C109 | HPE | HEWLETT PACKARD ENTERPRISE C | $3.7M | 0.47% | 155,000 | PUT | SOLE |
| 969457100 | WMB | WILLIAMS COS INC | $3.6M | 0.46% | 50,000 | Common | SOLE |
| 89346D107 | TAC | TRANSALTA CORP | $3.6M | 0.46% | 275,000 | Common | SOLE |
| 65340P106 | NXE | NEXGEN ENERGY LTD | $3.5M | 0.44% | 300,000 | Common | SOLE |
| 112463104 | BKD | BROOKDALE SR LIVING INC | $3.4M | 0.44% | 250,000 | Common | SOLE |
| 686688102 | ORA | ORMAT TECHNOLOGIES INC | $3.4M | 0.43% | 30,000 | Common | SOLE |
| 29355A107 | ENPH | ENPHASE ENERGY INC | $3.2M | 0.41% | 85,000 | Common | SOLE |
| 040413205 | ANET | ARISTA NETWORKS INC | $3.1M | 0.39% | 25,000 | CALL | SOLE |
| 25402D102 | DOCN | DIGITALOCEAN HLDGS INC | $3.0M | 0.38% | 35,000 | PUT | SOLE |
| 594918104 | MSFT | MICROSOFT CORP | $3.0M | 0.38% | 8,000 | Common | SOLE |
| 07831C103 | BRBR | BELLRING BRANDS INC | $2.8M | 0.36% | 175,000 | Common | SOLE |
| 042068205 | ARM | ARM HOLDINGS PLC | $2.7M | 0.35% | 18,000 | Common | SOLE |
| 34379V103 | FLNC | FLUENCE ENERGY INC | $2.5M | 0.32% | 185,000 | Common | SOLE |
| 75134P600 | METC | RAMACO RES INC | $2.5M | 0.32% | 160,000 | Common | SOLE |
| 00510N102 | TIC | TIC SOLUTIONS INC | $2.5M | 0.31% | 375,000 | Common | SOLE |
| 13321L108 | CCJ | CAMECO CORP | $2.4M | 0.31% | 22,500 | Common | SOLE |
| 19247G107 | COHR | COHERENT CORP | $2.4M | 0.30% | 10,000 | PUT | SOLE |
| 10316T104 | BOX | BOX INC | $2.4M | 0.30% | 100,000 | CALL | SOLE |
| 458140100 | INTC | INTEL CORP | $2.3M | 0.30% | 53,000 | Common | SOLE |
| 816850101 | SMTC | SEMTECH CORP | $2.3M | 0.29% | 30,000 | CALL | SOLE |
| 97785W106 | WOLF | WOLFSPEED INC | $2.3M | 0.29% | 140,000 | Common | SOLE |
| 18915M107 | NET | CLOUDFLARE INC | $2.2M | 0.28% | 10,800 | Common | SOLE |
| 880770102 | TER | TERADYNE INC | $2.2M | 0.28% | 7,500 | Common | SOLE |
| 68628V308 | ORN | ORION GROUP HLDGS INC | $2.2M | 0.28% | 200,000 | Common | SOLE |
| 46137V357 | RSP | INVESCO EXCHANGE TRADED FD T | $2.1M | 0.27% | 11,000 | Common | SOLE |
| 03214Q108 | AMPX | AMPRIUS TECHNOLOGIES INC | $2.1M | 0.27% | 125,000 | Common | SOLE |
| 34959E109 | FTNT | FORTINET INC | $2.1M | 0.27% | 25,600 | Common | SOLE |
| 91688F104 | UPWK | UPWORK INC | $2.1M | 0.27% | 190,000 | Common | SOLE |
| 315616102 | FFIV | F5 INC | $2.1M | 0.26% | 7,100 | Common | SOLE |
| 34959E109 | FTNT | FORTINET INC | $2.0M | 0.26% | 25,000 | CALL | SOLE |
| 41068X100 | HASI | HA SUSTAINABLE INFRA CAP INC | $2.0M | 0.26% | 55,000 | Common | SOLE |
| 254543101 | DIOD | DIODES INC | $2.0M | 0.26% | 29,500 | Common | SOLE |
| 98980L101 | ZNGA | ZOOM COMMUNICATIONS INC | $1.8M | 0.24% | 23,000 | CALL | SOLE |
| 90353T100 | UBER | UBER TECHNOLOGIES INC | $1.8M | 0.22% | 24,500 | Common | SOLE |
| 093712107 | BE | BLOOM ENERGY CORP | $1.8M | 0.22% | 13,000 | Common | SOLE |
| 67066G104 | NVDA | NVIDIA CORPORATION | $1.7M | 0.22% | 10,000 | CALL | SOLE |
| 007903107 | AMD | ADVANCED MICRO DEVICES INC | $1.6M | 0.21% | 8,000 | Common | SOLE |
| 007973100 | AEIS | ADVANCED ENERGY INDS | $1.6M | 0.21% | 5,000 | Common | SOLE |
| 576323109 | MTZ | MASTEC INC | $1.6M | 0.21% | 5,000 | Common | SOLE |
| 01438T106 | ALDX | ALDEYRA THERAPEUTICS INC | $1.6M | 0.20% | 950,000 | Common | SOLE |
| 26884L109 | EQT | EQT CORP | $1.6M | 0.20% | 25,000 | Common | SOLE |
| 29415C101 | EOSE | EOS ENERGY ENTERPRISES INC | $1.5M | 0.19% | 300,000 | Common | SOLE |
| 268150109 | DT | DYNATRACE INC | $1.5M | 0.19% | 40,000 | Common | SOLE |
| 29273V100 | ET | ENERGY TRANSFER L P | $1.4M | 0.18% | 75,000 | Common | SOLE |
| 8676EP108 | STKL | SUNOPTA INC | $1.4M | 0.18% | 220,000 | Common | SOLE |
| 21037T109 | CEG | CONSTELLATION ENERGY CORP | $1.4M | 0.18% | 5,000 | Common | SOLE |
| 465741106 | ITRI | ITRON INC | $1.3M | 0.17% | 15,000 | Common | SOLE |
| 29271Q103 | ESOA | ENERGY SERVICES OF AMER CORP | $1.3M | 0.17% | 100,000 | Common | SOLE |
| 61945C103 | MOS | MOSAIC CO | $1.3M | 0.16% | 50,000 | CALL | SOLE |
| 81762P102 | NOW | SERVICENOW INC | $1.3M | 0.16% | 12,000 | CALL | SOLE |
| 20460L104 | SPWR | SUNPOWER INC | $1.2M | 0.16% | 960,000 | Common | SOLE |
| 453204109 | PI | IMPINJ INC | $1.2M | 0.15% | 11,500 | Common | SOLE |
| 882508104 | TXN | TEXAS INSTRS INC | $1.2M | 0.15% | 6,000 | Common | SOLE |
| 87652V109 | TASK | TASKUS INC | $1.1M | 0.15% | 170,000 | CALL | SOLE |
| 81369Y605 | XLF | SELECT SECTOR SPDR TR | $1.1M | 0.14% | 23,000 | Common | SOLE |
| 20602D101 | CNXC | CONCENTRIX CORP | $1.1M | 0.14% | 40,000 | PUT | SOLE |
| 205750409 | LODE | COMSTOCK INC | $1.1M | 0.14% | 350,000 | Common | SOLE |
| 23703Q203 | DQ | DAQO NEW ENERGY CORP | $1.1M | 0.14% | 50,000 | CALL | SOLE |
| 81369Y605 | XLF | SELECT SECTOR SPDR TR | $987,400 | 0.13% | 20,000 | CALL | SOLE |
| 55955D100 | MGNI | MAGNITE INC | $926,640 | 0.12% | 78,000 | Common | SOLE |
| 729132100 | PLXS | PLEXUS CORP | $911,430 | 0.12% | 4,500 | Common | SOLE |
| 226718104 | CRTO | CRITEO S A | $905,465 | 0.12% | 50,500 | Common | SOLE |
| 030111207 | AMSC | AMERICAN SUPERCONDUCTOR CORP | $846,250 | 0.11% | 25,000 | Common | SOLE |
| 458140100 | INTC | INTEL CORP | $794,340 | 0.10% | 18,000 | CALL | SOLE |
| 55955D100 | MGNI | MAGNITE INC | $772,200 | 0.10% | 65,000 | CALL | SOLE |
| 302081104 | EXLS | EXLSERVICE HLDGS INC | $761,250 | 0.10% | 25,000 | PUT | SOLE |
| 53815P108 | RAMP | LIVERAMP HLDGS INC | $742,560 | 0.09% | 28,000 | CALL | SOLE |
| 553368101 | MP | MP MATERIALS CORP | $723,750 | 0.09% | 15,000 | Common | SOLE |
| 04271T100 | ARRY | ARRAY TECHNOLOGIES INC | $723,000 | 0.09% | 100,000 | Common | SOLE |
| 518415104 | LSCC | LATTICE SEMICONDUCTOR CORP | $649,320 | 0.08% | 7,000 | CALL | SOLE |
| 43289P106 | HIMX | HIMAX TECHNOLOGIES INC | $629,600 | 0.08% | 80,000 | CALL | SOLE |
| 90138F102 | TWLO | TWILIO INC | $629,100 | 0.08% | 5,000 | CALL | SOLE |
| 43289P106 | HIMX | HIMAX TECHNOLOGIES INC | $621,730 | 0.08% | 79,000 | Common | SOLE |
| 81730H109 | S | SENTINELONE INC | $592,480 | 0.08% | 46,000 | Common | SOLE |
| 254687106 | DIS | DISNEY WALT CO | $578,220 | 0.07% | 6,000 | Common | SOLE |
| 01438T106 | ALDX | ALDEYRA THERAPEUTICS INC | $507,000 | 0.06% | 300,000 | CALL | SOLE |
| 87652V109 | TASK | TASKUS INC | $436,150 | 0.06% | 65,000 | Common | SOLE |
| 679295105 | OKTA | OKTA INC | $393,550 | 0.05% | 5,000 | CALL | SOLE |
| 502160104 | LXU | LSB INDS INC | $372,500 | 0.05% | 25,000 | Common | SOLE |
| 53815P108 | RAMP | LIVERAMP HLDGS INC | $371,280 | 0.05% | 14,000 | Common | SOLE |
| 46578C108 | IE | IVANHOE ELECTRIC INC | $295,500 | 0.04% | 25,000 | Common | SOLE |
| 35952H700 | FCEL | FUELCELL ENERGY INC | $293,850 | 0.04% | 45,000 | Common | SOLE |
| 012653101 | ALB | ALBEMARLE CORP | $269,295 | 0.03% | 1,500 | Common | SOLE |
| 88076W103 | TDC | TERADATA CORP DEL | $256,300 | 0.03% | 10,000 | CALL | SOLE |
| 83304A106 | SNAP | SNAP INC | $230,000 | 0.03% | 50,000 | CALL | SOLE |
| G1117K114 | BIOX | BIOCERES CROP SOLUTIONS CORP | $211,328 | 0.03% | 475,000 | Common | SOLE |
| 88076W103 | TDC | TERADATA CORP DEL | $205,040 | 0.03% | 8,000 | 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.