ARDSLEY ADVISORY PARTNERS LP
Holdings as of 2026-06-30, filed 2026-07-13 · recorded 2026-07-26 16:44:09.992 UTC
This is history, not a current position. These holdings describe 2026-06-30, and the report became public 13 days later. The portfolio has changed since.
Aggregates
computed from the positions belowPositions reported
145
Value reported by manager
$960.2M
Sum of our stored positions
$960.2M
should match the line above
Disclosure lag
13 d
quarter end to filing
Top 5 concentration
20.2%
of the positions shown
New positions
0
vs previous quarter
Exited
0
vs previous quarter
Option positions
15
puts and calls
Positions
145 largest shown| Issuer | Class | Value | Shares | Type | CUSIP |
|---|---|---|---|---|---|
| SANDISK CORP | COM | $56.7M | 25,000 | — | 80004C200 |
| ADVANCED MICRO DEVICES INC | COM | $54M | 93,000 | — | 007903107 |
| SEZZLE INC | COM | $36.9M | 215,000 | — | 78435P105 |
| TERAWULF INC | COM | $23.7M | 966,000 | — | 88080T104 |
| BRIGHTSPRING HEALTH SVCS INC | COM | $22.7M | 325,000 | — | 10950A106 |
| EBAY INC. | COM | $22.3M | 201,000 | — | 278642103 |
| SUNRUN INC | COM | $21.4M | 1,600,000 | — | 86771W105 |
| VIAVI SOLUTIONS INC | COM | $18.6M | 390,000 | — | 925550105 |
| EVERPURE INC | CL A | $18.3M | 233,000 | — | 74624M102 |
| ARM HOLDINGS PLC | SPONSORED ADS | $16.6M | 47,000 | — | 042068205 |
| SHOALS TECHNOLOGIES GROUP IN | CL A | $16.5M | 1,665,000 | — | 82489W107 |
| AMAZON COM INC | COM | $16.4M | 69,000 | — | 023135106 |
| UNITED THERAPEUTICS CORP DEL | COM | $16.3M | 30,000 | — | 91307C102 |
| TEVA PHARMACEUTICAL INDS LTD | SPONSORED ADS | $15.8M | 465,000 | — | 881624209 |
| ALPHABET INC | CAP STK CL C | $15.3M | 43,500 | — | 02079K107 |
| PALO ALTO NETWORKS INC | COM | $14.6M | 43,000 | — | 697435105 |
| TWILIO INC | CL A | $14.2M | 69,000 | — | 90138F102 |
| PRIMORIS SVCS CORP | COM | $13.4M | 135,000 | — | 74164F103 |
| APPLE INC | COM | $13M | 45,000 | — | 037833100 |
| ZOOM COMMUNICATIONS INC | CL A | $12.5M | 145,000 | — | 98980L101 |
| MODINE MFG CO | COM | $12M | 45,000 | — | 607828100 |
| ONTO INNOVATION INC | COM | $11.9M | 31,500 | — | 683344105 |
| TD SYNNEX CORPORATION | COM | $11.6M | 43,500 | — | 87162W100 |
| BROOKDALE SR LIVING INC | COM | $11.1M | 690,000 | Call | 112463104 |
| ENPHASE ENERGY INC | COM | $10.8M | 220,000 | — | 29355A107 |
| ALLEGIANT TRAVEL CO | COM | $10.6M | 90,000 | — | 01748X102 |
| OKTA INC | CL A | $10.4M | 76,500 | — | 679295105 |
| EQUINIX INC | COM | $10.4M | 10,000 | — | 29444U700 |
| HUT 8 CORP | COM | $10.4M | 90,000 | — | 44812J104 |
| ALPS ETF TR | ALERIAN MLP | $10.4M | 200,000 | — | 00162Q452 |
| OSCAR HEALTH INC | CL A | $10M | 350,000 | — | 687793109 |
| BLOOM ENERGY CORP | COM CL A | $9.4M | 31,000 | — | 093712107 |
| CIPHER DIGITAL INC | COM | $9.2M | 375,000 | — | 17253J106 |
| NU HLDGS LTD | ORD SHS CL A | $9M | 675,000 | — | G6683N103 |
| CEREBRAS SYSTEMS INC | COM CL A | $8.7M | 39,000 | — | 15675D103 |
| LUMENTUM HLDGS INC | COM | $8.5M | 10,000 | — | 55024U109 |
| REMITLY GLOBAL INC | COM | $8.4M | 375,000 | — | 75960P104 |
| DEVON ENERGY CORP NEW | COM | $8.3M | 200,000 | — | 25179M103 |
| BROADCOM INC | COM | $7.9M | 21,000 | — | 11135F101 |
| ALASKA AIR GROUP INC | COM | $7.8M | 150,000 | — | 011659109 |
| CORNING INC | COM | $7.7M | 30,000 | — | 219350105 |
| FLUOR CORP | COM | $7.5M | 142,500 | — | 343412102 |
| VERTEX PHARMACEUTICALS INC | COM | $7.5M | 15,000 | — | 92532F100 |
| VERACYTE INC | COM | $7.3M | 125,000 | — | 92337F107 |
| SEMTECH CORP | COM | $7.3M | 45,000 | — | 816850101 |
| JAZZ PHARMACEUTICALS PLC | SHS USD | $7.2M | 30,000 | — | G50871105 |
| FERROGLOBE PLC | SHS | $6.9M | 2,185,000 | — | G33856108 |
| AKAMAI TECHNOLOGIES INC | COM | $6.6M | 56,000 | — | 00971T101 |
| ORACLE CORP | COM | $6.6M | 45,000 | Call | 68389X105 |
| VERIZON COMMUNICATIONS INC | COM | $6.6M | 155,000 | — | 92343V104 |
| BOX INC | CL A | $6.4M | 240,000 | — | 10316T104 |
| MICROCHIP TECHNOLOGY INC. | COM | $6.3M | 70,000 | — | 595017104 |
| SLB LIMITED | COM STK | $6.3M | 135,000 | — | 806857108 |
| XPLR INFRASTRUCTURE LP | COM UNIT PART IN | $6.2M | 525,000 | — | 65341B106 |
| CAMTEK LTD | ORD | $6M | 37,000 | — | M20791105 |
| MIRION TECHNOLOGIES INC | COM CL A | $5.8M | 325,000 | — | 60471A101 |
| SALESFORCE INC | COM | $5.6M | 36,000 | — | 79466L302 |
| GUARDIAN METAL RES PLC | SPONSORED ADS | $5.6M | 400,000 | — | 401382106 |
| GENEDX HOLDINGS CORP | COM CL A | $5.1M | 75,000 | — | 81663L200 |
| APPLIED OPTOELECTRONICS INC | COM | $5.1M | 35,000 | — | 03823U102 |
| ADMA BIOLOGICS INC | COM | $5M | 600,000 | — | 000899104 |
| CLEARWAY ENERGY INC | CL C | $4.8M | 140,000 | — | 18539C204 |
| TRANSALTA CORP | COM | $4.8M | 345,000 | — | 89346D107 |
| IMPINJ INC | COM | $4.7M | 33,000 | — | 453204109 |
| BORGWARNER INC | COM | $4.6M | 70,000 | — | 099724106 |
| NAVAN INC | CL A | $4.6M | 200,000 | — | 639193101 |
| FUELCELL ENERGY INC | COM NEW | $4.5M | 125,000 | Call | 35952H700 |
| GLOBALFOUNDRIES INC | ORDINARY SHARES | $4.5M | 54,500 | — | G39387108 |
| FLOWSERVE CORP | COM | $4.4M | 60,000 | — | 34354P105 |
| FUELCELL ENERGY INC | COM NEW | $4.4M | 120,000 | — | 35952H700 |
| LAM RESEARCH CORP | COM NEW | $4.3M | 10,000 | — | 512807306 |
| CVS HEALTH CORP | COM | $4.1M | 40,000 | — | 126650100 |
| MANHATTAN ASSOCIATES INC | COM | $4M | 28,500 | — | 562750109 |
| GLOBAL E ONLINE LTD | SHS | $3.9M | 113,000 | — | M5216V106 |
| BWX TECHNOLOGIES INC | COM | $3.9M | 20,000 | — | 05605H100 |
| AMPHENOL CORP | CL A | $3.9M | 22,000 | — | 032095101 |
| TEXAS INSTRS INC | COM | $3.9M | 13,000 | — | 882508104 |
| SKEENA RES LTD NEW | COM | $3.9M | 145,000 | — | 83056P715 |
| PROFOUND MED CORP | COM NEW | $3.8M | 575,000 | — | 74319B502 |
| WILLIAMS COS INC | COM | $3.7M | 50,000 | — | 969457100 |
| SHOPIFY INC | CL A SUB VTG SHS | $3.7M | 32,500 | — | 82509L107 |
| WESTERN DIGITAL CORP | COM | $3.5M | 5,500 | — | 958102105 |
| AEVA TECHNOLOGIES INC | COM NEW | $3.5M | 121,500 | — | 00835Q202 |
| ORION GROUP HLDGS INC | COM | $3.4M | 200,000 | — | 68628V308 |
| TIC SOLUTIONS INC | COM | $3.2M | 400,000 | — | 00510N102 |
| EOS ENERGY ENTERPRISES INC | COM CL A | $3.2M | 550,000 | — | 29415C101 |
| ALAMOS GOLD INC | COM CL A | $3.2M | 105,000 | — | 011532108 |
| COHU INC | COM | $3.1M | 41,700 | — | 192576106 |
| FLEX LTD | ORD | $3.1M | 19,000 | — | Y2573F102 |
| FORTREA HLDGS INC | COMMON STOCK | $3M | 175,000 | — | 34965K107 |
| STMICROELECTRONICS N V | NY REGISTRY | $3M | 41,000 | — | 861012102 |
| SERVICENOW INC | COM | $3M | 30,000 | Call | 81762P102 |
| WOLFSPEED INC | COMMON STOCK | $2.9M | 60,000 | — | 97785W106 |
| VEECO INSTRS INC DEL | COM | $2.8M | 37,000 | — | 922417100 |
| ATLASSIAN CORPORATION | CL A | $2.7M | 35,000 | Call | 049468101 |
| KBR INC | COM | $2.6M | 75,000 | — | 48242W106 |
| ENERGY TRANSFER L P | COM UT LTD PTN | $2.4M | 125,000 | — | 29273V100 |
| EVERPURE INC | CL A | $2.4M | 30,000 | Call | 74624M102 |
| PAGAYA TECHNOLOGIES LTD | CL A NEW | $2.3M | 125,000 | — | M7S64L123 |
| TRIPADVISOR INC | COM | $2.3M | 166,000 | — | 896945201 |
| HA SUSTAINABLE INFRA CAP INC | COM | $2.1M | 55,000 | — | 41068X100 |
| SERVICENOW INC | COM | $2.1M | 21,500 | — | 81762P102 |
| ALDEYRA THERAPEUTICS INC | COM | $2.1M | 975,000 | — | 01438T106 |
| SENTINELONE INC | CL A | $2M | 118,000 | — | 81730H109 |
| AVERY DENNISON CORP | COM | $1.9M | 12,000 | — | 053611109 |
| BAKER HUGHES COMPANY | CL A | $1.9M | 35,000 | — | 05722G100 |
| COGNIZANT TECHNOLOGY SOLUTIO | CL A | $1.9M | 50,000 | Put | 192446102 |
| ENERGY SERVICES OF AMER CORP | COM | $1.9M | 100,000 | — | 29271Q103 |
| NEBIUS GROUP N.V. | SHS CLASS A | $1.9M | 7,000 | — | N97284108 |
| CAMECO CORP | COM | $1.8M | 17,500 | — | 13321L108 |
| SNAP INC | CL A | $1.6M | 350,000 | — | 83304A106 |
| COMSTOCK INC | COM SHS | $1.5M | 350,000 | — | 205750409 |
| COSTAR GROUP INC | COM | $1.4M | 50,000 | Put | 22160N109 |
| TC ENERGY CORP | COM | $1.3M | 20,000 | — | 87807B107 |
| RAMACO RES INC | COM CL A | $1.3M | 100,000 | — | 75134P600 |
| AEVA TECHNOLOGIES INC | COM NEW | $1.3M | 45,000 | Call | 00835Q202 |
| DENISON MINES CORP | COM | $1.2M | 400,000 | — | 248356107 |
| AXT INC | COM | $1.2M | 17,000 | — | 00246W103 |
| VIANT TECHNOLOGY INC | COM CL A | $1.2M | 95,000 | — | 92557A101 |
| NETSKOPE INC | CL A | $1.2M | 109,500 | — | 64119N608 |
| OPERA LTD | SPONSORED ADS | $1.2M | 60,000 | — | 68373M107 |
| ZOOM COMMUNICATIONS INC | CL A | $1.1M | 13,000 | Call | 98980L101 |
| EQUIFAX INC | COM | $1.1M | 7,000 | — | 294429105 |
| WESTERN MIDSTREAM PARTNERS L | COM UNIT LP INT | $1.1M | 25,000 | — | 958669103 |
| MAGNITE INC | COM | $1.1M | 57,500 | — | 55955D100 |
| HIMAX TECHNOLOGIES INC | SPONSORED ADR | $1.1M | 70,000 | Call | 43289P106 |
| SUNPOWER INC | COM | $973.3K | 1,416,065 | — | 20460L104 |
| COMMVAULT SYS INC | COM | $864.6K | 6,100 | — | 204166102 |
| AMERICAN SUPERCONDUCTOR CORP | SHS NEW | $830.2K | 20,000 | — | 030111207 |
| LSB INDS INC | COM | $810.8K | 75,000 | — | 502160104 |
| KORN FERRY | COM NEW | $665.8K | 10,000 | Put | 500643200 |
| ITRON INC | COM | $649K | 7,500 | — | 465741106 |
| ALDEYRA THERAPEUTICS INC | COM | $639K | 300,000 | Call | 01438T106 |
| NIOCORP DEVS LTD | COM NEW | $602.5K | 125,000 | — | 654484609 |
| AXT INC | COM | $576.6K | 8,000 | Call | 00246W103 |
| ATLASSIAN CORPORATION | CL A | $544.5K | 7,000 | — | 049468101 |
| FTAI INFRASTRUCTURE INC | COMMON STOCK | $464K | 100,000 | — | 35953C106 |
| FLUENCE ENERGY INC | COM CL A | $395.4K | 20,000 | — | 34379V103 |
| TRONOX HOLDINGS PLC | SHS | $315K | 50,000 | — | G9087Q102 |
| SOLAREDGE TECHNOLOGIES INC | COM | $292.2K | 5,000 | — | 83417M104 |
| MP MATERIALS CORP | COM CL A | $280.4K | 5,000 | — | 553368101 |
| IVANHOE ELECTRIC INC | COM | $240.3K | 25,000 | — | 46578C108 |
| USA RARE EARTH INC | COM | $216.2K | 10,000 | — | 91733P107 |
| BIOCERES CROP SOLUTIONS CORP | SHS | $166.3K | 475,000 | — | G1117K114 |
| VIANT TECHNOLOGY INC | COM CL A | $158.3K | 12,500 | Call | 92557A101 |
Values are shown exactly as filed. Before 2023 managers reported in thousands of dollars and afterwards in whole dollars; the reporting unit is not always determinable from the document, so nothing is converted automatically.
Source: U.S. Securities and Exchange Commission, Form 13F · as of 2026-07-13