ARDSLEY ADVISORY PARTNERS LP
Filing Date
Global Rank
#434
/ 3,203
▲ 1654
Top Industry
Semiconductors
12.9%
3Y Alpha vs SPY
+13.2%
Period ended 30 days ago
Filed Jul 13, 2026 · 17d
26 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Cloned portfolio
+119.8%
SPY
+65.3%
Annualised alpha
+11.8%
Max drawdown
−32.0%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 85% of reported value on average across 13 quarters. Past performance does not predict future results.
Portfolio Concentration
134 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Top Position
6.1%
+0.4 pts
Top 5
20.8%
−2.0 pts
Top 10
31.4%
−4.9 pts
HHI
183
Diversified−28
Portfolio Trend
26 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 51.9% | $485,246,546 |
| Healthcare | 13.0% | $121,673,250 |
| Industrials | 9.5% | $89,065,565 |
| Financial Services | 8.8% | $82,316,450 |
| Consumer Cyclical | 6.8% | $63,719,660 |
| Energy | 3.0% | $28,016,000 |
| Basic Materials | 2.7% | $25,013,300 |
| Utilities | 1.7% | $16,154,400 |
| Communication Services | 1.3% | $12,331,040 |
| Real Estate | 1.3% | $11,839,900 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| RUN | Sunrun Inc. | +465,000 | 1,600,000 | $21,408,000 | |
| SPWR | SunPower Inc. | +456,065 | 1,416,065 | $973,261 | |
| SNAP | Snap Inc | +300,000 | 350,000 | $1,554,000 | |
| EOSE | Eos Energy Enterprises, Inc. | +250,000 | 550,000 | $3,234,000 | |
| FCEL | Fuelcell Energy Inc | +200,000 | 245,000 | $8,822,450 | |
| ADMA | Adma Biologics, Inc. | +175,000 | 600,000 | $5,022,000 | |
| ENPH | Enphase Energy, Inc. | +135,000 | 220,000 | $10,832,800 | |
| AMD | Advanced Micro Devices Inc | +85,000 | 93,000 | $54,024,630 | |
| S | SentinelOne, Inc. | +72,000 | 118,000 | $2,002,460 | |
| TAC | Transalta Corp | +70,000 | 345,000 | $4,771,350 | |
| EBAY | Ebay Inc | +60,500 | 201,000 | $22,461,750 | |
| FLR | Fluor Corp | +60,000 | 142,500 | $7,465,575 | |
| ZM | Zoom Communications, Inc. | +52,000 | 158,000 | $13,636,980 | |
| ET | Energy Transfer LP | +50,000 | 125,000 | $2,390,000 | |
| LXU | Lsb Industries, Inc. | +50,000 | 75,000 | $810,750 | |
| XIFR | XPLR Infrastructure, LP | +50,000 | 525,000 | $6,200,250 | |
| ARM | Arm Holdings PLC /Uk | +29,000 | 47,000 | $16,664,790 | |
| TIC | TIC Solutions, Inc. | +25,000 | 400,000 | $3,236,000 | |
| VZ | Verizon Communications Inc | +25,000 | 155,000 | $6,562,700 | |
| ALDX | Aldeyra Therapeutics, Inc. | +25,000 | 1,275,000 | $2,715,750 | |
| PI | Impinj Inc | +21,500 | 33,000 | $4,726,590 | |
| BE | Bloom Energy Corp | +18,000 | 31,000 | $9,383,700 | |
| TWLO | Twilio Inc | +16,800 | 69,000 | $14,236,770 | |
| AAPL | Apple Inc. | +15,000 | 45,000 | $13,021,200 | |
| TXN | Texas Instruments Inc | +7,000 | 13,000 | $3,874,910 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| DNN | Denison Mines Corp. | −1,000,000 | 400,000 | $1,224,000 | |
| SHLS | Shoals Technologies Group, Inc. | −595,000 | 1,665,000 | $16,483,500 | |
| BKD | Brookdale Senior Living Inc. | −250,000 | 690,000 | $11,102,100 | |
| SMTC | Semtech Corp | −243,750 | 45,000 | $7,283,250 | |
| FLNC | Fluence Energy, Inc. | −165,000 | 20,000 | $397,600 | |
| AVGO | Broadcom Inc. | −118,500 | 21,000 | $7,932,750 | |
| BOX | Box Inc | −96,000 | 240,000 | $6,369,600 | |
| TEVA | Teva Pharmaceutical Industries Ltd | −90,000 | 465,000 | $15,754,200 | |
| HIMX | Himax Technologies, Inc. | −89,000 | 70,000 | $1,073,800 | |
| MGNI | Magnite, Inc. | −85,500 | 57,500 | $1,091,350 | |
| AMZN | Amazon Com Inc | −85,000 | 69,000 | $16,445,460 | |
| SEZL | Sezzle Inc. | −85,000 | 215,000 | $36,900,450 | |
| WULF | Terawulf Inc. | −84,000 | 966,000 | $23,860,200 | |
| WOLF | Wolfspeed, Inc. | −80,000 | 60,000 | $2,895,000 | |
| CIFR | Cipher Digital Inc. | −75,000 | 375,000 | $9,187,500 | |
| AGI | Alamos Gold Inc | −70,000 | 105,000 | $3,185,700 | |
| HUT | Hut 8 Corp. | −60,000 | 90,000 | $10,390,050 | |
| METC | Ramaco Resources, Inc. | −60,000 | 100,000 | $1,323,000 | |
| MOD | Modine Manufacturing Co | −46,100 | 45,000 | $12,015,900 | |
| CVS | CVS HEALTH Corp | −45,000 | 40,000 | $4,138,000 | |
| NOW | ServiceNow, Inc. | −33,000 | 51,500 | $5,112,920 | |
| SKE | Skeena Resources Ltd | −30,000 | 145,000 | $3,865,700 | |
| SNDK | Sandisk Corp | −30,000 | 25,000 | $56,843,250 | |
| AVY | Avery Dennison Corp | −28,000 | 12,000 | $1,948,200 | |
| WGS | GeneDx Holdings Corp. | −25,000 | 75,000 | $5,148,750 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| P | Everpure, Inc. | 263,000 | $20,721,770 | |
| PANW | Palo Alto Networks Inc | 43,000 | $14,663,860 | |
| PRIM | Primoris Services Corp | 135,000 | $13,381,200 | |
| ONTO | Onto Innovation Inc. | 31,500 | $11,921,175 | |
| SNX | Td Synnex Corp | 43,500 | $11,629,290 | |
| ALGT | Allegiant Travel CO | 90,000 | $10,584,000 | |
| OSCR | Oscar Health, Inc. | 350,000 | $9,982,000 | |
| CBRS | Cerebras Systems Inc. | 39,000 | $8,619,000 | |
| RELY | Remitly Global, Inc. | 375,000 | $8,403,750 | |
| DVN | Devon Energy Corp/De | 200,000 | $8,264,000 | |
| GLW | Corning Inc /Ny | 30,000 | $7,662,900 | |
| VRTX | Vertex Pharmaceuticals Inc / Ma | 15,000 | $7,450,950 | |
| JAZZ | Jazz Pharmaceuticals plc | 30,000 | $7,229,100 | |
| GSM | Ferroglobe PLC | 2,185,000 | $6,948,300 | |
| AKAM | Akamai Technologies Inc | 56,000 | $6,619,760 | |
| ORCL | Oracle Corp | 45,000 | $6,594,750 | |
| MCHP | Microchip Technology Inc | 70,000 | $6,384,000 | |
| SLB | Slb Limited/Nv | 135,000 | $6,276,150 | |
| CAMT | Camtek Ltd | 37,000 | $6,035,440 | |
| CRM | Salesforce, Inc. | 36,000 | $5,639,760 | |
| GMTL | Guardian Metal Resources PLC | 400,000 | $5,604,000 | |
| AAOI | Applied Optoelectronics, Inc. | 35,000 | $5,185,600 | |
| AEVA | Aeva Technologies, Inc. | 166,500 | $4,781,880 | |
| BWA | Borgwarner Inc | 70,000 | $4,648,000 | |
| NAVN | Navan, Inc. | 200,000 | $4,574,000 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | 49,000 | $31,866,660 | |
| ANET | Arista Networks, Inc. | 198,700 | $24,396,386 | |
| NVDA | Nvidia Corp | 97,500 | $17,004,000 | |
| META | Meta Platforms, Inc. | 28,000 | $16,019,640 | |
| MU | Micron Technology Inc | 31,000 | $10,473,040 | |
| BSX | Boston Scientific Corp | 150,000 | $9,412,500 | |
| AMAT | Applied Materials Inc /De | 25,000 | $8,544,750 | |
| LSCC | Lattice Semiconductor Corp | 88,500 | $8,209,260 | |
| ADI | Analog Devices Inc | 16,000 | $5,090,240 | |
| LLY | ELI LILLY & Co | 5,000 | $4,598,850 | |
| ATEX | Anterix Inc. | 110,000 | $4,200,900 | |
| FTNT | Fortinet, Inc. | 50,600 | $4,135,032 | |
| ROKU | Roku, Inc | 41,500 | $3,926,730 | |
| NFLX | Netflix Inc | 40,000 | $3,846,000 | |
| HON | Honeywell International Inc | 16,500 | $3,729,495 | |
| HPE | Hewlett Packard Enterprise Co | 155,000 | $3,690,550 | |
| NXE | NexGen Energy Ltd. | 300,000 | $3,480,000 | |
| ORA | Ormat Technologies, Inc. | 30,000 | $3,357,600 | |
| INTC | Intel Corp | 71,000 | $3,133,230 | |
| DOCN | DigitalOcean Holdings, Inc. | 35,000 | $3,002,300 | |
| MSFT | Microsoft Corp | 8,000 | $2,961,360 | |
| BRBR | Bellring Brands, Inc. | 175,000 | $2,815,750 | |
| COHR | Coherent Corp. | 10,000 | $2,382,100 | |
| NET | Cloudflare, Inc. | 10,800 | $2,228,472 | |
| TER | Teradyne, Inc | 7,500 | $2,223,450 | |
| No positions match the current search. | ||||
134 tracked positions ·
$935,376,111 total
· as of Jun 30, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Utilities
Showing 1–50
of 134 positions by value
· page 1 of 3
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SNDK |
Sandisk Corp
Technology
|
Reduced | 25,000 | $56,843,250 | 6.08% | |
| AMD |
Advanced Micro Devices Inc
Technology
|
Added | 93,000 | $54,024,630 | 5.78% | |
| SEZL |
Sezzle Inc.
Financial Services
|
Reduced | 215,000 | $36,900,450 | 3.94% | |
| WULF |
Terawulf Inc.
Financial Services
|
Reduced | 966,000 | $23,860,200 | 2.55% | |
| BTSG |
BrightSpring Health Services, Inc.
Healthcare
|
Reduced | 325,000 | $22,665,500 | 2.42% | |
| EBAY |
Ebay Inc
Consumer Cyclical
|
Added | 201,000 | $22,461,750 | 2.40% | |
| RUN |
Sunrun Inc.
Technology
|
Added | 1,600,000 | $21,408,000 | 2.29% | |
| P |
Everpure, Inc.
CALL
+ SHARES
Technology
|
NEW | 263,000 | $20,721,770 | 2.22% | |
| VIAV |
Viavi Solutions Inc.
Technology
|
Reduced | 390,000 | $18,622,500 | 1.99% | |
| ARM |
Arm Holdings PLC /Uk
Technology
|
Added | 47,000 | $16,664,790 | 1.78% | |
| SHLS |
Shoals Technologies Group, Inc.
Technology
|
Reduced | 1,665,000 | $16,483,500 | 1.76% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 69,000 | $16,445,460 | 1.76% | |
| UTHR |
UNITED THERAPEUTICS Corp
Healthcare
|
Reduced | 30,000 | $16,254,900 | 1.74% | |
| TEVA |
Teva Pharmaceutical Industries Ltd
Healthcare
|
Reduced | 465,000 | $15,754,200 | 1.68% | |
| PANW |
Palo Alto Networks Inc
Technology
|
NEW | 43,000 | $14,663,860 | 1.57% | |
| TWLO |
Twilio Inc
Technology
|
Added | 69,000 | $14,236,770 | 1.52% | |
| ZM |
Zoom Communications, Inc.
CALL
+ SHARES
Technology
|
Added | 158,000 | $13,636,980 | 1.46% | |
| PRIM |
Primoris Services Corp
Industrials
|
NEW | 135,000 | $13,381,200 | 1.43% | |
| AAPL |
Apple Inc.
Technology
|
Added | 45,000 | $13,021,200 | 1.39% | |
| MOD |
Modine Manufacturing Co
Consumer Cyclical
|
Reduced | 45,000 | $12,015,900 | 1.28% | |
| ONTO |
Onto Innovation Inc.
Technology
|
NEW | 31,500 | $11,921,175 | 1.27% | |
| SNX |
Td Synnex Corp
Technology
|
NEW | 43,500 | $11,629,290 | 1.24% | |
| BKD |
Brookdale Senior Living Inc.
CALL
Healthcare
|
Reduced | 690,000 | $11,102,100 | 1.19% | |
| ENPH |
Enphase Energy, Inc.
Technology
|
Added | 220,000 | $10,832,800 | 1.16% | |
| ALGT |
Allegiant Travel CO
Industrials
|
NEW | 90,000 | $10,584,000 | 1.13% | |
| OKTA |
Okta, Inc.
Technology
|
Added | 76,500 | $10,438,425 | 1.12% | |
| EQIX |
Equinix Inc
Real Estate
|
Reduced | 10,000 | $10,423,900 | 1.11% | |
| HUT |
Hut 8 Corp.
Financial Services
|
Reduced | 90,000 | $10,390,050 | 1.11% | |
| OSCR |
Oscar Health, Inc.
Healthcare
|
NEW | 350,000 | $9,982,000 | 1.07% | |
| BE |
Bloom Energy Corp
Industrials
|
Added | 31,000 | $9,383,700 | 1.00% | |
| CIFR |
Cipher Digital Inc.
Technology
|
Reduced | 375,000 | $9,187,500 | 0.98% | |
| NU |
Nu Holdings Ltd.
Financial Services
|
Held | 675,000 | $9,018,000 | 0.96% | |
| FCEL |
Fuelcell Energy Inc
CALL
+ SHARES
Industrials
|
Added | 245,000 | $8,822,450 | 0.94% | |
| CBRS |
Cerebras Systems Inc.
Technology
|
NEW | 39,000 | $8,619,000 | 0.92% | |
| LITE |
Lumentum Holdings Inc.
Technology
|
Added | 10,000 | $8,580,600 | 0.92% | |
| RELY |
Remitly Global, Inc.
Technology
|
NEW | 375,000 | $8,403,750 | 0.90% | |
| DVN |
Devon Energy Corp/De
Energy
|
NEW | 200,000 | $8,264,000 | 0.88% | |
| AVGO |
Broadcom Inc.
Technology
|
Reduced | 21,000 | $7,932,750 | 0.85% | |
| ALK |
Alaska Air Group, Inc.
Industrials
|
Reduced | 150,000 | $7,830,000 | 0.84% | |
| GLW |
Corning Inc /Ny
Technology
|
NEW | 30,000 | $7,662,900 | 0.82% | |
| FLR |
Fluor Corp
Industrials
|
Added | 142,500 | $7,465,575 | 0.80% | |
| VRTX |
Vertex Pharmaceuticals Inc / Ma
Healthcare
|
NEW | 15,000 | $7,450,950 | 0.80% | |
| VCYT |
Veracyte, Inc.
Healthcare
|
Held | 125,000 | $7,341,250 | 0.78% | |
| SMTC |
Semtech Corp
Technology
|
Reduced | 45,000 | $7,283,250 | 0.78% | |
| JAZZ |
Jazz Pharmaceuticals plc
Healthcare
|
NEW | 30,000 | $7,229,100 | 0.77% | |
| GSM |
Ferroglobe PLC
Basic Materials
|
NEW | 2,185,000 | $6,948,300 | 0.74% | |
| AKAM |
Akamai Technologies Inc
Technology
|
NEW | 56,000 | $6,619,760 | 0.71% | |
| ORCL |
Oracle Corp
CALL
Technology
|
NEW | 45,000 | $6,594,750 | 0.71% | |
| VZ |
Verizon Communications Inc
Communication Services
|
Added | 155,000 | $6,562,700 | 0.70% | |
| MCHP |
Microchip Technology Inc
Technology
|
NEW | 70,000 | $6,384,000 | 0.68% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.