ARDSLEY ADVISORY PARTNERS LP
13F Reported Value
ⓘ$960.2M
incl. option notional
Equity Holdings
ⓘ$921.1M
Option Notional
ⓘ$39.1M
$4.0M puts / $35.1M calls
Holdings
145
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
ARDSLEY ADVISORY PARTNERS LP disclosed 145 positions worth $960.2M in its Form 13F-HR for Q2 2026 — $921.1M in common stock plus $39.1M of put/call option positions (reported at underlying notional value, not premium at risk), led by $SNDK (Sandisk Corp) at 6.2% of the equity portfolio, followed by $AMD and $SEZL. During the quarter the fund opened 68 new positions and exited 74 and a full exit from $SPY. The portfolio is most concentrated in Technology (49.0% of disclosed assets). All figures are sourced directly from ARDSLEY ADVISORY PARTNERS LP’s Form 13F-HR filing with the SEC under CIK 900529.
AI Fund Analysis
Diversifying
$SNDK
$WULF
$BTSG
$EBAY
$RUN$EBAY
$PANW
$GSM
$TACSector Allocation
AUM History
Top Equity Holdings by Value
Option Positions
13F rules report options at the value of the underlying shares (notional) — not the premium paid or capital at risk. Shown separately from the equity sleeve above.
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- 88.8#3
Quality
$56.7M25,000 sh - 78.8#64
Quality
$54.0M93,000 sh - 80.9#36
Quality
$36.9M215,000 sh - 25.2
Quality
$23.7M966,000 sh - 64.3
Quality
$22.7M325,000 sh - 69.3
Quality
$22.3M201,000 sh - 54.6
Quality
$21.4M1,600,000 sh - 42.9
Quality
$18.6M390,000 sh EVERPURE INC - CL A
—Quality
$18.3M233,000 sh- —
Quality
$16.6M47,000 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
| Sandisk Corp$SNDK | 88.8#3 | $56.7M | 25,000 |
 ADVANCED MICRO DEVICES INC$AMD | 78.8#64 | $54.0M | 93,000 |
 Sezzle Inc.$SEZL | 80.9#36 | $36.9M | 215,000 |
| TERAWULF INC.$WULF | 25.2 | $23.7M | 966,000 |
| BrightSpring Health Services, Inc.$BTSG | 64.3 | $22.7M | 325,000 |
| EBAY INC$EBAY | 69.3 | $22.3M | 201,000 |
| Sunrun Inc.$RUN | 54.6 | $21.4M | 1,600,000 |
 VIAVI SOLUTIONS INC.$VIAV | 42.9 | $18.6M | 390,000 |
| EVERPURE INC - CL A | — | $18.3M | 233,000 |
 ARM HOLDINGS PLC /UK$ARM | — | $16.6M | 47,000 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of ARDSLEY ADVISORY PARTNERS LP's 145 positions.
Showing top 10 of 145 holdings.
Sector Allocation
Technology
$451.2M
Healthcare
$109.9M
Industrials
$109.4M
Financials
$94.7M
Energy
$41.7M
Materials
$36.3M
Other
$28.7M
Consumer Discretionary
$16.4M
Full Holdings — ARDSLEY ADVISORY PARTNERS LP (Q2 2026)
All 145 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $SNDK | Sandisk Corp | $56.7M | 6.2% | -40% | 88.8 |
| 2 | $AMD | ADVANCED MICRO DEVICES INC | $54.0M | 5.9% | +1063% | 78.8 |
| 3 | $SEZL | Sezzle Inc. | $36.9M | 4.0% | -28% | 80.9 |
| 4 | $WULF | TERAWULF INC. | $23.7M | 2.6% | -8% | 25.2 |
| 5 | $BTSG | BrightSpring Health Services, Inc. | $22.7M | 2.5% | -7% | 64.3 |
| 6 | $EBAY | EBAY INC | $22.3M | 2.4% | +43% | 69.3 |
| 7 | $RUN | Sunrun Inc. | $21.4M | 2.3% | +41% | 54.6 |
| 8 | $VIAV | VIAVI SOLUTIONS INC. | $18.6M | 2.0% | -3% | 42.9 |
| 9 | — | EVERPURE INC - CL A | $18.3M | 2.0% | NEW | — |
| 10 | $ARM | ARM HOLDINGS PLC /UK | $16.6M | 1.8% | +161% | — |
| 11 |  $SHLS | Shoals Technologies Group, Inc. | $16.5M | 1.8% | -26% | 45.5 |
| 12 |  $AMZN | AMAZON COM INC | $16.4M | 1.8% | -35% | 74.6 |
| 13 |  $UTHR | UNITED THERAPEUTICS Corp | $16.3M | 1.8% | -40% | 80.1 |
| 14 |  $TEVA | TEVA PHARMACEUTICAL INDUSTRIES LTD | $15.8M | 1.7% | -16% | — |
| 15 |  $GOOGL | Alphabet Inc. | $15.3M | 1.7% | +45% | 80.2 |
| 16 | $PANW | Palo Alto Networks Inc | $14.6M | 1.6% | NEW | 66.5 |
| 17 |  $TWLO | TWILIO INC | $14.2M | 1.6% | +46% | 59.5 |
| 18 |  $PRIM | Primoris Services Corp | $13.4M | 1.4% | NEW | 62.3 |
| 19 |  $AAPL | Apple Inc. | $13.0M | 1.4% | NEW | 76.1 |
| 20 |  $ZM | Zoom Communications, Inc. | $12.5M | 1.4% | +75% | 72.4 |
| 21 |  $MOD | MODINE MANUFACTURING CO | $12.0M | 1.3% | -51% | 48.8 |
| 22 |  $ONTO | ONTO INNOVATION INC. | $11.9M | 1.3% | NEW | 66.5 |
| 23 |  $SNX | TD SYNNEX CORP | $11.6M | 1.3% | NEW | 55.2 |
| 24 |  $BKDCALL | Brookdale Senior Living Inc. | $11.1M | — | +0% | 43.1 |
| 25 |  $ENPH | Enphase Energy, Inc. | $10.8M | 1.2% | +159% | 44.1 |
| 26 |  $ALGT | Allegiant Travel CO | $10.6M | 1.1% | NEW | 44.4 |
| 27 |  $OKTA | Okta, Inc. | $10.4M | 1.1% | +13% | 67.3 |
| 28 |  $EQIX | EQUINIX INC | $10.4M | 1.1% | +26% | 61.4 |
| 29 |  $HUT | Hut 8 Corp. | $10.4M | 1.1% | -40% | 31.4 |
| 30 | — | ALPS ETF TR - ALERIAN MLP | $10.4M | 1.1% | +0% | — |
| 31 |  $OSCR | Oscar Health, Inc. | $10.0M | 1.1% | NEW | 70.4 |
| 32 |  $BE | Bloom Energy Corp | $9.4M | 1.0% | +138% | 54.4 |
| 33 |  $CIFR | Cipher Digital Inc. | $9.2M | 1.0% | -17% | 30.1 |
| 34 |  $NU | Nu Holdings Ltd. | $9.0M | 1.0% | +0% | — |
| 35 |  $CBRS | Cerebras Systems Inc. | $8.7M | 0.9% | NEW | — |
| 36 |  $LITE | Lumentum Holdings Inc. | $8.5M | 0.9% | +61% | 63.4 |
| 37 |  $RELY | Remitly Global, Inc. | $8.4M | 0.9% | NEW | 66 |
| 38 |  $DVN | DEVON ENERGY CORP/DE | $8.3M | 0.9% | NEW | 70.2 |
| 39 |  $AVGO | Broadcom Inc. | $7.9M | 0.9% | -77% | 86.4 |
| 40 |  $ALK | ALASKA AIR GROUP, INC. | $7.8M | 0.8% | -9% | 56.3 |
| 41 |  $GLW | CORNING INC /NY | $7.7M | 0.8% | NEW | 72.7 |
| 42 |  $FLR | FLUOR CORP | $7.5M | 0.8% | +73% | 66.2 |
| 43 |  $VRTX | VERTEX PHARMACEUTICALS INC / MA | $7.5M | 0.8% | NEW | 76.6 |
| 44 |  $VCYT | VERACYTE, INC. | $7.3M | 0.8% | +0% | 59.5 |
| 45 |  $SMTC | SEMTECH CORP | $7.3M | 0.8% | -83% | 54.5 |
| 46 |  $JAZZ | Jazz Pharmaceuticals plc | $7.2M | 0.8% | NEW | — |
| 47 | $GSM | Ferroglobe PLC | $6.9M | 0.8% | NEW | — |
| 48 |  $AKAM | AKAMAI TECHNOLOGIES INC | $6.6M | 0.7% | NEW | 62 |
| 49 |  $ORCLCALL | ORACLE CORP | $6.6M | — | NEW | 67.2 |
| 50 |  $VZ | VERIZON COMMUNICATIONS INC | $6.6M | 0.7% | +19% | 71.6 |
| 51 |  $BOX | BOX INC | $6.4M | 0.7% | +2% | 61.7 |
| 52 |  $MCHP | MICROCHIP TECHNOLOGY INC | $6.3M | 0.7% | NEW | 40 |
| 53 |  $SLB | SLB LIMITED/NV | $6.3M | 0.7% | NEW | 63.2 |
| 54 |  $XIFR | XPLR Infrastructure, LP | $6.2M | 0.7% | +11% | 40.8 |
| 55 |  $CAMT | CAMTEK LTD | $6.0M | 0.7% | NEW | — |
| 56 |  $MIR | Mirion Technologies, Inc. | $5.8M | 0.6% | +0% | 51.1 |
| 57 |  $CRM | Salesforce, Inc. | $5.6M | 0.6% | NEW | 75.2 |
| 58 |  $GMTL | Guardian Metal Resources PLC | $5.6M | 0.6% | NEW | — |
| 59 |  $WGS | GeneDx Holdings Corp. | $5.1M | 0.6% | -25% | 38.6 |
| 60 |  $AAOI | APPLIED OPTOELECTRONICS, INC. | $5.1M | 0.6% | NEW | 40.6 |
| 61 |  $ADMA | ADMA BIOLOGICS, INC. | $5.0M | 0.6% | +41% | 76 |
| 62 |  $CWEN | Clearway Energy, Inc. | $4.8M | 0.5% | +0% | 64.2 |
| 63 | $TAC | TRANSALTA CORP | $4.8M | 0.5% | +25% | — |
| 64 |  $PI | IMPINJ INC | $4.7M | 0.5% | +187% | 35.3 |
| 65 |  $BWA | BORGWARNER INC | $4.6M | 0.5% | NEW | 57.2 |
| 66 |  $NAVN | Navan, Inc. | $4.6M | 0.5% | NEW | — |
| 67 |  $FCELCALL | FUELCELL ENERGY INC | $4.5M | — | NEW | 24.2 |
| 68 |  $GFS | GLOBALFOUNDRIES Inc. | $4.5M | 0.5% | NEW | — |
| 69 |  $FLS | FLOWSERVE CORP | $4.4M | 0.5% | NEW | 66.2 |
| 70 | $FCEL | FUELCELL ENERGY INC | $4.4M | 0.5% | +167% | 24.2 |
| 71 |  $LRCX | LAM RESEARCH CORP | $4.3M | 0.5% | NEW | 82.4 |
| 72 |  $CVS | CVS HEALTH Corp | $4.1M | 0.5% | -53% | 51.3 |
| 73 |  $MANH | MANHATTAN ASSOCIATES INC | $4.0M | 0.4% | NEW | 70.1 |
| 74 |  $GLBE | Global-E Online Ltd. | $3.9M | 0.4% | NEW | — |
| 75 |  $BWXT | BWX Technologies, Inc. | $3.9M | 0.4% | -20% | 68 |
| 76 |  $APH | AMPHENOL CORP /DE/ | $3.9M | 0.4% | NEW | 80.5 |
| 77 |  $TXN | TEXAS INSTRUMENTS INC | $3.9M | 0.4% | +117% | 70.4 |
| 78 |  $SKE | Skeena Resources Ltd | $3.9M | 0.4% | -17% | — |
| 79 |  $PROF | Profound Medical Corp. | $3.8M | 0.4% | +0% | — |
| 80 |  $WMB | WILLIAMS COMPANIES, INC. | $3.7M | 0.4% | +0% | 72.8 |
| 81 |  $SHOP | SHOPIFY INC. | $3.7M | 0.4% | NEW | — |
| 82 |  $WDC | WESTERN DIGITAL CORP | $3.5M | 0.4% | NEW | 76.8 |
| 83 |  $AEVA | Aeva Technologies, Inc. | $3.5M | 0.4% | NEW | 22.8 |
| 84 |  $ORN | Orion Group Holdings Inc | $3.4M | 0.4% | +0% | 48.5 |
| 85 |  $TIC | TIC Solutions, Inc. | $3.2M | 0.3% | +7% | 45.7 |
| 86 |  $EOSE | Eos Energy Enterprises, Inc. | $3.2M | 0.3% | +83% | 29.2 |
| 87 |  $AGI | ALAMOS GOLD INC | $3.2M | 0.3% | -40% | — |
| 88 |  $COHU | COHU INC | $3.1M | 0.3% | NEW | 25.2 |
| 89 |  $FLEX | FLEX LTD. | $3.1M | 0.3% | NEW | — |
| 90 |  $FTRE | Fortrea Holdings Inc. | $3.0M | 0.3% | NEW | 31.4 |
| 91 |  $STM | STMicroelectronics N.V. | $3.0M | 0.3% | NEW | — |
| 92 |  $NOWCALL | ServiceNow, Inc. | $3.0M | — | +150% | 76 |
| 93 |  $WOLF | WOLFSPEED, INC. | $2.9M | 0.3% | -57% | 28.4 |
| 94 |  $VECO | VEECO INSTRUMENTS INC | $2.8M | 0.3% | NEW | 40.7 |
| 95 |  $TEAMCALL | Atlassian Corp | $2.7M | — | NEW | 56.8 |
| 96 |  $KBR | KBR, INC. | $2.6M | 0.3% | NEW | 64.7 |
| 97 |  $ET | Energy Transfer LP | $2.4M | 0.3% | +67% | 64.5 |
| 98 | — | EVERPURE INC - CL A | $2.4M | — | NEW | — |
| 99 |  $PGY | Pagaya Technologies Ltd. | $2.3M | 0.3% | NEW | — |
| 100 |  $TRIP | TripAdvisor, Inc. | $2.3M | 0.3% | NEW | 51.5 |
| 101 |  $HASI | HA Sustainable Infrastructure Capital, Inc. | $2.1M | 0.2% | +0% | 50.1 |
| 102 | $NOW | ServiceNow, Inc. | $2.1M | 0.2% | -70% | 76 |
| 103 |  $ALDX | Aldeyra Therapeutics, Inc. | $2.1M | 0.2% | +3% | — |
| 104 |  $S | SentinelOne, Inc. | $2.0M | 0.2% | +157% | 41.4 |
| 105 |  $AVY | Avery Dennison Corp | $1.9M | 0.2% | -70% | 62.9 |
| 106 |  $BKR | Baker Hughes Co | $1.9M | 0.2% | NEW | 63.4 |
| 107 |  $CTSHPUT | COGNIZANT TECHNOLOGY SOLUTIONS CORP | $1.9M | — | NEW | 67.3 |
| 108 |  $ESOA | Energy Services of America CORP | $1.9M | 0.2% | +0% | 45.7 |
| 109 |  $NBIS | Nebius Group N.V. | $1.9M | 0.2% | NEW | — |
| 110 |  $CCJ | CAMECO CORP | $1.8M | 0.2% | -22% | — |
| 111 |  $SNAP | Snap Inc | $1.6M | 0.2% | NEW | 46.8 |
| 112 |  $LODE | Comstock Inc. | $1.5M | 0.2% | +0% | 23.1 |
| 113 |  $CSGPPUT | COSTAR GROUP, INC. | $1.4M | — | NEW | 49.5 |
| 114 |  $TRP | TC ENERGY CORP | $1.3M | 0.1% | NEW | — |
| 115 |  $METC | Ramaco Resources, Inc. | $1.3M | 0.1% | -38% | 24.1 |
| 116 | $AEVACALL | Aeva Technologies, Inc. | $1.3M | — | NEW | 22.8 |
| 117 |  $DNN | DENISON MINES CORP. | $1.2M | 0.1% | -71% | — |
| 118 |  $AXTI | AXT INC | $1.2M | 0.1% | NEW | 30.9 |
| 119 |  $DSP | Viant Technology Inc. | $1.2M | 0.1% | NEW | 47.1 |
| 120 |  $NTSK | Netskope Inc | $1.2M | 0.1% | NEW | — |
| 121 |  $OPRA | Opera Ltd | $1.2M | 0.1% | NEW | — |
| 122 | $ZMCALL | Zoom Communications, Inc. | $1.1M | — | -43% | 72.4 |
| 123 |  $EFX | EQUIFAX INC | $1.1M | 0.1% | NEW | 69.4 |
| 124 |  $WES | Western Midstream Partners, LP | $1.1M | 0.1% | NEW | 78.1 |
| 125 |  $MGNI | MAGNITE, INC. | $1.1M | 0.1% | -26% | 42.6 |
| 126 |  $HIMXCALL | Himax Technologies, Inc. | $1.1M | — | -13% | — |
| 127 |  $SPWR | SunPower Inc. | $973,261 | 0.1% | +48% | 38 |
| 128 |  $CVLT | COMMVAULT SYSTEMS INC | $864,553 | 0.1% | NEW | 58.9 |
| 129 |  $AMSC | AMERICAN SUPERCONDUCTOR CORP /DE/ | $830,200 | 0.1% | -20% | 68.7 |
| 130 |  $LXU | LSB INDUSTRIES, INC. | $810,750 | 0.1% | +200% | 52.7 |
| 131 |  $KFYPUT | KORN FERRY | $665,800 | — | NEW | 61.9 |
| 132 |  $ITRI | ITRON, INC. | $648,975 | 0.1% | -50% | 64.4 |
| 133 | $ALDXCALL | Aldeyra Therapeutics, Inc. | $639,000 | — | +0% | — |
| 134 |  $NB | NIOCORP DEVELOPMENTS LTD | $602,500 | 0.1% | NEW | — |
| 135 | $AXTICALL | AXT INC | $576,640 | — | NEW | 30.9 |
| 136 | $TEAM | Atlassian Corp | $544,530 | 0.1% | NEW | 56.8 |
| 137 |  $FIP | FTAI Infrastructure Inc. | $464,000 | 0.1% | NEW | 36.4 |
| 138 |  $FLNC | Fluence Energy, Inc. | $395,400 | 0.0% | -89% | 35.9 |
| 139 |  $TROX | Tronox Holdings plc | $315,000 | 0.0% | NEW | — |
| 140 |  $SEDG | SOLAREDGE TECHNOLOGIES, INC. | $292,200 | 0.0% | NEW | 25.9 |
| 141 |  $MP | MP Materials Corp. / DE | $280,400 | 0.0% | -67% | 23.5 |
| 142 |  $IE | Ivanhoe Electric Inc. | $240,250 | 0.0% | +0% | 27.9 |
| 143 |  $USAR | USA Rare Earth, Inc. | $216,200 | 0.0% | NEW | 28.1 |
| 144 |  $BIOX | Bioceres Crop Solutions Corp. | $166,298 | 0.0% | +0% | 20.1 |
| 145 | $DSPCALL | Viant Technology Inc. | $158,250 | — | NEW | 47.1 |
New Positions (68)
$PANW Palo Alto Networks Inc$14.6M$PRIM Primoris Services Corp$13.4M$AAPL Apple Inc.$13.0M$ONTO ONTO INNOVATION INC.$11.9M$SNX TD SYNNEX CORP$11.6M$ALGT Allegiant Travel CO$10.6M$OSCR Oscar Health, Inc.$10.0M$CBRS Cerebras Systems Inc.$8.7M$RELY Remitly Global, Inc.$8.4M$DVN DEVON ENERGY CORP/DE$8.3M$GLW CORNING INC /NY$7.7M$VRTX VERTEX PHARMACEUTICALS INC / MA$7.5M$JAZZ Jazz Pharmaceuticals plc$7.2M$GSM Ferroglobe PLC$6.9MExited Positions (74)
$SPYCALL SPDR S&P 500 ETF TRUST
$ANET Arista Networks, Inc.
$META Meta Platforms, Inc.$AVGOCALL Broadcom Inc.
$NVDA NVIDIA CORP$AMZNCALL AMAZON COM INC
$BSX BOSTON SCIENTIFIC CORP
$AMAT APPLIED MATERIALS INC /DE$SNDKCALL Sandisk Corp$AAPLPUT Apple Inc.
$LSCC LATTICE SEMICONDUCTOR CORP
$MUCALL MICRON TECHNOLOGY INC
$ADI ANALOG DEVICES INC$MU MICRON TECHNOLOGY INCBrowse Top Institutional Investors
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