13F-HR filed by ARDSLEY ADVISORY PARTNERS LP
ARDSLEY ADVISORY PARTNERS LP filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-15, with 151 holding rows worth $784,359,571.
- Accession
- 0001172661-26-002039
- Filer
- CIK 900529
- Filed
- 2026-05-15
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q1 2026
A holdings report, 151 entries on the cover page, a total value of $784,359,571 stated on the cover page (in dollars after the unit check, H1), rows summing to $784,359,571 with VALUE read as dollars as filed, 13F file number 028-04639. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| SPY | 78462F103 | SHS | 49,000 | $31,866,660 | dollars as filed | call |
| UNITED THERAPEUTICS CORP DEL COM | 91307C102 | Stock | 50,000 | $29,649,000 | dollars as filed | |
| Broadcom Inc. | 11135F101 | COM | 89,500 | $27,714,570 | dollars as filed | |
| SanDisk Corporation | 80004C200 | COM | 42,000 | $26,709,480 | dollars as filed | |
| Amazon.com, Inc | 023135106 | COM | 106,000 | $22,076,620 | dollars as filed | |
| ARISTA NETWORKS INC | 040413205 | COM | 173,700 | $21,326,886 | dollars as filed | |
| SEMTECH CORP COM | 816850101 | Stock | 258,750 | $19,895,288 | dollars as filed | |
| MODINE MFG CO COM | 607828100 | Stock | 91,100 | $19,742,281 | dollars as filed | |
| SEZZLE INC | 78435P105 | COM | 300,000 | $18,987,000 | dollars as filed | |
| TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS | 881624209 | ADR | 555,000 | $16,716,600 | dollars as filed | |
| META PLATFORMS INC CL A | 30303M102 | COM | 28,000 | $16,021,040 | dollars as filed | |
| Broadcom Inc. | 11135F101 | COM | 50,000 | $15,475,500 | dollars as filed | call |
| SUNRUN INC | 86771W105 | COM | 1,135,000 | $15,390,600 | dollars as filed | |
| NVIDIA Corp | 67066G104 | COM | 87,500 | $15,260,000 | dollars as filed | |
| TERAWULF INC | 88080T104 | COM | 1,050,000 | $15,120,000 | dollars as filed | |
| BRIGHTSPRING HEALTH SVCS | 10950A106 | COM | 350,000 | $14,913,500 | dollars as filed | |
| SHOALS TECHNOLOGIES GROUP INC CL A | 82489W107 | Stock | 2,260,000 | $14,870,800 | dollars as filed | |
| VIAVI SOLUTIONS INC | 925550105 | COM | 400,000 | $13,316,000 | dollars as filed | |
| EBAY INC. COM | 278642103 | Stock | 140,500 | $12,788,310 | dollars as filed | |
| ALPS ETF TR | 00162Q452 | ALERIAN MLP | 200,000 | $10,528,000 | dollars as filed | |
| Amazon.com, Inc | 023135106 | COM | 48,000 | $9,996,960 | dollars as filed | call |
| NU HLDGS LTD | G6683N103 | ORD SHS CL A | 675,000 | $9,699,750 | dollars as filed | |
| BROOKDALE SR LIVING INC | 112463104 | COM | 690,000 | $9,439,200 | dollars as filed | call |
| Boston Scientific Corporation | 101137107 | COM | 150,000 | $9,412,500 | dollars as filed | |
| Alphabet Inc. Reg. Shares C | 02079K107 | COM | 30,000 | $8,605,800 | dollars as filed | |
| Applied Materials,Inc. | 038222105 | COM | 25,000 | $8,544,750 | dollars as filed | |
| SanDisk Corporation | 80004C200 | COM | 13,000 | $8,259,420 | dollars as filed | call |
| EQUINIX INC COM | 29444U700 | REIT | 7,950 | $7,792,908 | dollars as filed | |
| ALAMOS GOLD INC COM CL A | 011532108 | Stock | 175,000 | $7,775,250 | dollars as filed | |
| Apple Inc | 037833100 | COM | 30,000 | $7,613,700 | dollars as filed | put |
| ServiceNow,Inc. | 81762P102 | COM | 72,500 | $7,579,875 | dollars as filed | |
| LATTICE SEMICONDUCTOR CORP COM | 518415104 | Stock | 81,500 | $7,559,940 | dollars as filed | |
| HUT 8 CORP | 44812J104 | COM | 150,000 | $7,036,500 | dollars as filed | |
| AVERY DENNISON CORP COM | 053611109 | Stock | 40,000 | $6,907,200 | dollars as filed | |
| Utilities Select Sector SPDR Fund | 81369Y886 | SHS | 150,000 | $6,876,000 | dollars as filed | |
| ZOOM COMMUNICATIONS INC CL A | 98980L101 | Stock | 83,000 | $6,698,100 | dollars as filed | |
| Verizon Communications Inc | 92343V104 | COM | 130,000 | $6,526,000 | dollars as filed | |
| GENEDX HOLDINGS CORP | 81663L200 | COM CL A | 100,000 | $6,422,000 | dollars as filed | |
| CVS Health Corporation | 126650100 | COM | 85,000 | $6,104,700 | dollars as filed | |
| ALASKA AIR GROUP INC COM | 011659109 | Stock | 165,000 | $6,068,700 | dollars as filed | |
| MIRION TECHNOLOGIES INC | 60471A101 | COM CL A | 325,000 | $6,041,750 | dollars as filed | |
| TWILIO INC CL A | 90138F102 | Stock | 47,200 | $5,938,704 | dollars as filed | |
| CIPHER DIGITAL INC COM | 17253J106 | Stock | 450,000 | $5,787,000 | dollars as filed | |
| Micron Technology,Inc. | 595112103 | COM | 17,000 | $5,743,280 | dollars as filed | call |
| BOX INC CL A | 10316T104 | Stock | 236,000 | $5,579,040 | dollars as filed | |
| CLEARWAY ENERGY INC CL C | 18539C204 | Stock | 140,000 | $5,500,600 | dollars as filed | |
| OKTAINCCLASSA | 679295105 | STOK | 67,600 | $5,320,796 | dollars as filed | |
| SKEENA RES LTD NEW | 83056P715 | COM | 175,000 | $5,201,000 | dollars as filed | |
| BWX TECHNOLOGIES INC | 05605H100 | COM | 25,000 | $5,112,250 | dollars as filed | |
| Analog Devices,Inc. | 032654105 | COM | 16,000 | $5,090,240 | dollars as filed | |
| XPLR INFRASTRUCTURE LP | 65341B106 | COM UNIT PART IN | 475,000 | $5,044,500 | dollars as filed | |
| DENISON MINES CORP | 248356107 | COM | 1,400,000 | $4,942,000 | dollars as filed | |
| Micron Technology,Inc. | 595112103 | COM | 14,000 | $4,726,960 | dollars as filed | |
| Eli Lilly and Company | 532457108 | COM | 5,000 | $4,598,850 | dollars as filed | |
| LUMENTUM HLDGS INC COM | 55024U109 | Stock | 6,200 | $4,364,676 | dollars as filed | |
| ANTERIX INC | 03676C100 | COMMON STOCK | 110,000 | $4,200,900 | dollars as filed | |
| VERACYTE INC COM | 92337F107 | Stock | 125,000 | $4,026,250 | dollars as filed | |
| ROKU INC COM CL A | 77543R102 | Stock | 41,500 | $3,926,730 | dollars as filed | |
| EQUINIX INC COM | 29444U700 | REIT | 4,000 | $3,920,960 | dollars as filed | call |
| FLUOR CORP | 343412102 | COM | 82,500 | $3,848,625 | dollars as filed | |
| Netflix, Inc | 64110L106 | COM | 40,000 | $3,846,400 | dollars as filed | |
| ADMA BIOLOGICS INC | 000899104 | COM | 425,000 | $3,829,250 | dollars as filed | |
| Honeywell Technologies | 438516106 | COM | 16,500 | $3,729,495 | dollars as filed | |
| PROFOUND MED CORP | 74319B502 | COM NEW | 575,000 | $3,726,000 | dollars as filed | |
| HEWLETT PACKARD ENTERPRISE CO COM | 42824C109 | Stock | 155,000 | $3,690,550 | dollars as filed | put |
| WILLIAMS COS INC COM | 969457100 | Stock | 50,000 | $3,639,000 | dollars as filed | |
| TRANSALTA CORP | 89346D107 | COM | 275,000 | $3,615,144 | dollars as filed | |
| NEXGEN ENERGY LTD COM | 65340P106 | Stock | 300,000 | $3,480,000 | dollars as filed | |
| BROOKDALE SR LIVING INC | 112463104 | COM | 250,000 | $3,420,000 | dollars as filed | |
| ORMAT TECHNOLOGIES INC | 686688102 | COM | 30,000 | $3,357,600 | dollars as filed | |
| ENPHASE ENERGY INC COM | 29355A107 | Stock | 85,000 | $3,213,850 | dollars as filed | |
| ARISTA NETWORKS INC | 040413205 | COM | 25,000 | $3,069,500 | dollars as filed | call |
| DIGITALOCEAN HLDGS INC COM | 25402D102 | Stock | 35,000 | $3,002,300 | dollars as filed | put |
| Microsoft Corp | 594918104 | COM | 8,000 | $2,959,680 | dollars as filed | |
| BELLRING BRANDS INC COMMON STOCK | 07831C103 | Stock | 175,000 | $2,815,750 | dollars as filed | |
| ARM HOLDINGS PLC | 042068205 | SPONSORED ADS | 18,000 | $2,723,040 | dollars as filed | |
| FLUENCE ENERGY INC | 34379V103 | COM CL A | 185,000 | $2,545,600 | dollars as filed | |
| RAMACO RES INC | 75134P600 | COM CL A | 160,000 | $2,473,600 | dollars as filed | |
| ACUREN CORP | 00510N102 | COM | 375,000 | $2,467,500 | dollars as filed | |
| CAMECO CORP COM | 13321L108 | Stock | 22,500 | $2,443,725 | dollars as filed | |
| COHERENT CORP COM | 19247G107 | Stock | 10,000 | $2,382,100 | dollars as filed | put |
| BOX INC CL A | 10316T104 | Stock | 100,000 | $2,364,000 | dollars as filed | call |
| Intel Corp | 458140100 | COM | 53,000 | $2,342,070 | dollars as filed | |
| SEMTECH CORP COM | 816850101 | Stock | 30,000 | $2,306,700 | dollars as filed | call |
| WOLFSPEED INC | 97785W106 | COMMON STOCK | 140,000 | $2,287,600 | dollars as filed | |
| CLOUDFLARE INC CL A COM | 18915M107 | Stock | 10,800 | $2,228,040 | dollars as filed | |
| TERADYNE INC COM | 880770102 | Stock | 7,500 | $2,223,450 | dollars as filed | |
| ORION GROUP HOLDINGS INC | 68628V308 | COMMON STOCK | 200,000 | $2,180,000 | dollars as filed | |
| INVESCO EXCHANGE-TRADED FD TR S&P 500 EQUAL WEIGHT ETF | 46137V357 | COM | 11,000 | $2,111,120 | dollars as filed | |
| AMPRIUS TECHNOLOGIES INC COMMON STOCK | 03214Q108 | Stock | 125,000 | $2,106,250 | dollars as filed | |
| FORTINET INC COM | 34959E109 | Stock | 25,600 | $2,092,032 | dollars as filed | |
| UPWORK INC | 91688F104 | COM | 190,000 | $2,082,400 | dollars as filed | |
| F5 INC COM | 315616102 | Stock | 7,100 | $2,054,243 | dollars as filed | |
| FORTINET INC COM | 34959E109 | Stock | 25,000 | $2,043,000 | dollars as filed | call |
| HA SUSTAINABLE INFRA CAP INC | 41068X100 | COM | 55,000 | $2,021,250 | dollars as filed | |
| DIODES INC COM | 254543101 | Stock | 29,500 | $2,013,670 | dollars as filed | |
| ZOOM COMMUNICATIONS INC CL A | 98980L101 | Stock | 23,000 | $1,848,970 | dollars as filed | call |
| Uber Technologies | 90353T100 | COM | 24,500 | $1,762,285 | dollars as filed | |
| BLOOM ENERGY CORP | 093712107 | COM | 13,000 | $1,752,530 | dollars as filed | |
| NVIDIA Corp | 67066G104 | COM | 10,000 | $1,744,000 | dollars as filed | call |
| Advanced Micro Devices,Inc. | 007903107 | COM | 8,000 | $1,627,440 | dollars as filed | |
| ADVANCED ENERGY INDS COM | 007973100 | Stock | 5,000 | $1,613,550 | dollars as filed | |
| MASTEC INC COM | 576323109 | Stock | 5,000 | $1,608,700 | dollars as filed | |
| ALDEYRA THERAPEUTICS INC | 01438T106 | COM | 950,000 | $1,605,500 | dollars as filed | |
| EQT CORP COM | 26884L109 | Stock | 25,000 | $1,591,000 | dollars as filed | |
| EOS ENERGY ENTERPRISES INC COM CL A | 29415C101 | Stock | 300,000 | $1,488,000 | dollars as filed | |
| DYNATRACE INC COM NEW | 268150109 | Stock | 40,000 | $1,479,200 | dollars as filed | |
| ENERGY TRANSFER L P | 29273V100 | COM UT LTD PTN | 75,000 | $1,440,750 | dollars as filed | |
| SUNOPTA INC | 8676EP108 | COM | 220,000 | $1,425,600 | dollars as filed | |
| CONSTELLATION ENERGY CORP COM | 21037T109 | Stock | 5,000 | $1,392,900 | dollars as filed | |
| ITRON INC COM | 465741106 | Stock | 15,000 | $1,344,450 | dollars as filed | |
| ENERGY SVCS ACQUISITION CORP | 29271Q103 | COM | 100,000 | $1,313,000 | dollars as filed | |
| MOSAIC CO COM | 61945C103 | Stock | 50,000 | $1,275,000 | dollars as filed | call |
| ServiceNow,Inc. | 81762P102 | COM | 12,000 | $1,254,600 | dollars as filed | call |
| SUNPOWER INC | 20460L104 | COM | 960,000 | $1,219,200 | dollars as filed | |
| IMPINJ INC | 453204109 | COM | 11,500 | $1,181,050 | dollars as filed | |
| Texas Instruments Incorporated | 882508104 | COM | 6,000 | $1,164,840 | dollars as filed | |
| TASKUS INC | 87652V109 | CLASS A COM | 170,000 | $1,140,700 | dollars as filed | call |
| Financial Select Sector SPDR Fund | 81369Y605 | SHS | 23,000 | $1,135,970 | dollars as filed | |
| CONCENTRIX CORP | 20602D101 | COM | 40,000 | $1,094,400 | dollars as filed | put |
| COMSTOCK INC | 205750409 | COMMON STOCK | 350,000 | $1,067,500 | dollars as filed | |
| DAQO NEW ENERGY CORP. (ADR) | 23703Q203 | SPNSRD ADS NEW | 50,000 | $1,063,500 | dollars as filed | call |
| Financial Select Sector SPDR Fund | 81369Y605 | SHS | 20,000 | $987,400 | dollars as filed | call |
| MAGNITE INC COM | 55955D100 | Stock | 78,000 | $926,640 | dollars as filed | |
| PLEXUS CORP COM | 729132100 | Stock | 4,500 | $911,430 | dollars as filed | |
| CRITEO S A SPONS ADS | 226718104 | ADR | 50,500 | $905,465 | dollars as filed | |
| AMERICAN SUPERCONDUCTOR CORP | 030111207 | SHS NEW | 25,000 | $846,250 | dollars as filed | |
| Intel Corp | 458140100 | COM | 18,000 | $794,340 | dollars as filed | call |
| MAGNITE INC COM | 55955D100 | Stock | 65,000 | $772,200 | dollars as filed | call |
| EXLSERVICE HLDGS INC COM | 302081104 | Stock | 25,000 | $761,250 | dollars as filed | put |
| LIVERAMP HLDGS INC COM | 53815P108 | Stock | 28,000 | $742,560 | dollars as filed | call |
| MP MATERIALS CORP | 553368101 | COM CL A | 15,000 | $723,750 | dollars as filed | |
| ARRAY TECHNOLOGIES, INC. | 04271T100 | COM SHS | 100,000 | $723,000 | dollars as filed | |
| LATTICE SEMICONDUCTOR CORP COM | 518415104 | Stock | 7,000 | $649,320 | dollars as filed | call |
| HIMAX TECHNOLOGIES INC SPONSORED ADR | 43289P106 | ADR | 80,000 | $629,600 | dollars as filed | call |
| TWILIO INC CL A | 90138F102 | Stock | 5,000 | $629,100 | dollars as filed | call |
| HIMAX TECHNOLOGIES INC SPONSORED ADR | 43289P106 | ADR | 79,000 | $621,730 | dollars as filed | |
| SENTINELONE INC | 81730H109 | CL A | 46,000 | $592,480 | dollars as filed | |
| Walt Disney Co | 254687106 | COM | 6,000 | $578,220 | dollars as filed | |
| ALDEYRA THERAPEUTICS INC | 01438T106 | COM | 300,000 | $507,000 | dollars as filed | call |
| TASKUS INC | 87652V109 | CLASS A COM | 65,000 | $436,150 | dollars as filed | |
| OKTAINCCLASSA | 679295105 | STOK | 5,000 | $393,550 | dollars as filed | call |
| LSB INDS INC | 502160104 | COM | 25,000 | $372,500 | dollars as filed | |
| LIVERAMP HLDGS INC COM | 53815P108 | Stock | 14,000 | $371,280 | dollars as filed | |
| IVANHOE ELECTRIC INC US | 46578C108 | COMMON STOCK | 25,000 | $295,500 | dollars as filed | |
| FUELCELL ENERGY INC | 35952H700 | COMMON STOCK | 45,000 | $293,850 | dollars as filed | |
| ALBEMARLE CORP | 012653101 | COM | 1,500 | $269,295 | dollars as filed | |
| TERADATA CORP DEL | 88076W103 | COM | 10,000 | $256,300 | dollars as filed | call |
| SNAP INC | 83304A106 | CL A | 50,000 | $230,000 | dollars as filed | call |
| BIOCERES CROP SOLUTIONS CORP | G1117K114 | CMN | 475,000 | $211,328 | dollars as filed | |
| TERADATA CORP DEL | 88076W103 | COM | 8,000 | $205,040 | dollars as filed |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001172661-26-002039 | this filing | 2026-05-15 | acceptance time not in the bulk data set |