Ardsley Advisory Partners LP

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 14, 2024), Ardsley Advisory Partners LP reported 109 stock positions worth $528.5 million. Its top holding was Oscar Health Class A (OSCR) at 4.4% of the portfolio, followed by Itron (ITRI, 3.8%) and Sunrun (RUN, 3.8%). Compared with Q2 2024, it opened 41 new positions, sold out of 40, added to 39 and reduced 27. The biggest buy was a new position in Broadcom (AVGO) and the biggest sale Ftai Aviation (FTAI, shares −86%).

Most Recent 13F
Q2 2026
Location
Norwalk, CT
CIK
0000900529
Portfolio Value
$528.5M (Q3 2024)
SEC Filing
0001172661-24-004816 ↗ filed Nov 14, 2024

Holdings Value

0$200.0M$400.0M$600.0M$800.0M$1.0B Q1 2024: $696.1M Q1 2024 Q2 2024: $552.7M Q2 2024 Q3 2024: $528.5M $528.5M Q3 2024 Q4 2024: $516.3M Q4 2024 Q1 2025: $431.7M Q1 2025 Q2 2025: $611.9M Q2 2025 Q3 2025: $652.1M Q3 2025 Q4 2025: $785.4M Q4 2025 Q1 2026: $656.4M Q1 2026 Q2 2026: $921.1M Q2 2026

Holdings 109 stocks · $528.5M

OSCR Oscar Health Inc. Class A 4.43% 1,102,600 $23.4M Reduce -13.9%
ITRI Itron Inc. 3.84% 190,000 $20.3M Reduce -15.6%
RUN Sunrun Inc. 3.83% 1,120,000 $20.2M Reduce -52.5%
FLR Fluor Corp. 3.03% 335,350 $16.0M Reduce -8.8%
CLS Celestica Inc. 2.90% 300,000 $15.3M Reduce -33.3%
S Sentinelone Inc. Class A 2.87% 635,100 $15.2M Add +42.4%
AVGO Broadcom Inc. 2.76% 84,500 $14.6M New
MSFT Microsoft Corp. 2.51% 31,000 $13.3M Add +24.3%
BIOX Bioceres Crop Solutions Corp. 2.35% 1,579,388 $12.4M Reduce -8.8%
STKL Sunopta Inc. 2.03% 1,680,000 $10.7M Reduce -43.0%
SMCI Super Micro Computer Inc. 2.01% 25,500 $10.6M New
ORCL Oracle Corp. 1.92% 60,000 $10.2M Add +57.9%
SMTC Semtech Corp. 1.90% 220,200 $10.1M Add +9.3%
MRVL Marvell Technology Inc. 1.80% 132,100 $9.5M Reduce -32.6%
INDV Indivior Ltd. 1.77% 961,450 $9.4M Add +121.0%
TAC Transalta Corp. 1.77% 900,000 $9.3M New
AMZN Amazon.com Inc. 1.76% 50,000 $9.3M Add +66.7%
WULF Terawulf Inc. 1.73% 1,958,000 $9.2M Add +3816.0%
NVDA Nvidia Corp. 1.70% 74,000 $9.0M Reduce -10.8%
CRM Salesforce Inc. 1.68% 32,500 $8.9M Add +91.2%
GSM Ferroglobe PLC 1.68% 1,914,345 $8.9M Add +3.0%
ELAN Elanco Animal Health Inc. 1.60% 575,000 $8.4M New
SGRY Surgery Partners Inc. 1.56% 255,000 $8.2M Add +34.2%
AGI Alamos Gold Inc. Class A 1.51% 400,000 $8.0M Reduce -20.0%
MIRM Mirum Pharmaceuticals Inc. 1.40% 190,000 $7.4M Add +5.6%
PANW Palo Alto Networks Inc. 1.36% 21,000 $7.2M Add +4.0%
FSLR First Solar Inc. 1.32% 28,000 $7.0M Reduce -24.3%
GLW Corning Inc. 1.29% 151,500 $6.8M Add +378.7%
DT Dynatrace Inc. 1.27% 125,500 $6.7M Add +1.6%
MTZ Mastec Inc. 1.26% 54,250 $6.7M Add +261.7%
DKNG Draftkings Inc. Class A 1.26% 170,000 $6.7M Reduce -15.0%
AMRC Ameresco Inc. Class A 1.22% 170,000 $6.4M Reduce -12.8%
SLV iShares Silver Trust 1.21% 225,100 $6.4M Add +645.4%
BRBR Bellring Brands Inc. 1.21% 105,000 $6.4M Reduce -30.0%
TEVA Teva Pharmaceutical-SP ADR 1.20% 352,900 $6.4M Add +40.7%
AAPL Apple Inc. 1.15% 26,200 $6.1M Add +11.5%
DY Dycom Industries Inc. 1.12% 30,000 $5.9M Add +482.5%
VSTO Vista Outdoor Inc. 1.11% 150,000 $5.9M New
ILMN Illumina Inc. 1.11% 45,000 $5.9M New
HUT Hut 8 Corp. 1.10% 475,000 $5.8M New
TEL Te Connectivity PLC 1.07% 37,500 $5.7M Add +5.9%
IREN Iren Ltd. filed as IRIS ENERGY LTD 1.00% 625,000 $5.3M New
AMPS Altus Power Inc. 0.97% 1,616,000 $5.1M Add +5.9%
KWEB Kranesh Csi China Internet 0.97% 150,500 $5.1M New
TXN Texas Instruments Inc. 0.94% 24,000 $5.0M Reduce -24.1%
FTAI Ftai Aviation Ltd. 0.91% 36,050 $4.8M Reduce -85.7%
CLNE Clean Energy Fuels Corp. 0.90% 1,525,000 $4.7M Add +29.8%
ADSK Autodesk Inc. 0.89% 17,000 $4.7M Add +325.0%
CCJ Cameco Corp. 0.82% 90,250 $4.3M New
ONTO Onto Innovation Inc. 0.78% 19,900 $4.1M Add +47.4%
NFLX Netflix Inc. 0.74% 5,500 $3.9M New
NUGT Dirxn DLY GM Indx B2X ETF-Ui 0.70% 75,000 $3.7M Reduce -21.1%
PCOR Procore Technologies Inc. 0.70% 60,000 $3.7M Reduce -40.0%
AEHR Aehr Test Systems 0.66% 270,000 $3.5M Add +350.0%
ASPN Aspen Aerogels Inc. 0.66% 125,000 $3.5M Reduce -68.3%
REAL BROKERAGE INC/THE filed as THE REAL BROKERAGE INC 0.63% 600,000 $3.3M New
ON On Semiconductor 0.60% 43,500 $3.2M New
AEIS Advanced Energy Industries 0.60% 30,000 $3.2M New
URA Global X Uranium ETF 0.54% 100,000 $2.9M Add +300.0%
WDAY Workday Inc. Class A 0.51% 11,100 $2.7M Reduce -3.5%
ALDX Aldeyra Therapeutics Inc. 0.51% 500,000 $2.7M New
AMSC American Superconductor Corp. 0.45% 100,000 $2.4M Add +150.0%
BIDU Baidu Inc. - Spon ADR 0.44% 22,000 $2.3M New
PROF Profound Medical Corp. 0.41% 275,000 $2.2M Add +27.9%
BL Blackline Inc. 0.41% 39,000 $2.2M Add +358.8%
ADBE Adobe Inc. 0.39% 4,000 $2.1M Add +45.5%
LSCC Lattice Semiconductor Corp. 0.36% 35,500 $1.9M New
AKAM Akamai Technologies Inc. 0.34% 17,750 $1.8M New
PYPL PayPal Holdings Inc. 0.32% 22,000 $1.7M New
GDXJ Vaneck Junior Gold Miners 0.32% 35,000 $1.7M New
MYRG MYR Group Inc./Delaware 0.29% 15,000 $1.5M Reduce -14.3%
FLUT Flutter Entertainment PLC-Di 0.27% 6,000 $1.4M Add +7.1%
GDX Vaneck Gold Miners ETF 0.26% 35,000 $1.4M Add +75.0%
MIR Mirion Technologies Inc. 0.26% 125,000 $1.4M Add +25.0%
CEVA Ceva Inc. 0.25% 55,000 $1.3M New
MU Micron Technology Inc. 0.24% 12,150 $1.3M New
DOCN Digitalocean Holdings Inc. 0.23% 30,500 $1.2M New
WPM Wheaton Precious Metals Corp. 0.23% 20,000 $1.2M Add +33.3%
ORN Orion Group Holdings Inc. 0.22% 200,000 $1.2M New
BOX Box Inc. Class A 0.22% 35,000 $1.1M New
CAMT Camtek Ltd. 0.21% 14,000 $1.1M New
HUBB Hubbell Inc. 0.20% 2,500 $1.1M New
NXE Nexgen Energy Ltd. 0.20% 161,500 $1.1M Add +6.6%
MP MP Materials Corp. 0.18% 55,000 $971K Add +266.7%
DNN Denison Mines Corp. 0.17% 500,000 $915K No change
SHLS Shoals Technologies Group -A 0.17% 160,000 $898K New
HASI Ha Sustainable Infrastructur 0.16% 25,250 $870K Reduce -95.4%
FIVN FIVE9 Inc. 0.16% 30,000 $862K Reduce -75.0%
SNOW Snowflake Inc. 0.16% 7,500 $861K New
VECO Veeco Instruments Inc. 0.16% 25,000 $828K New
BE Bloom Energy Corp. Class A 0.15% 75,000 $792K New
BTDR Bitdeer Technologies Group-A 0.15% 100,000 $780K New
ZUO Zuora Inc. Class A 0.15% 89,000 $767K Add +71.2%
AES AES Corp. 0.14% 38,000 $762K Add +280.0%
BLDP Ballard Power Systems Inc. 0.14% 400,000 $720K New
MDU Mdu Resources Group Inc. 0.13% 25,000 $685K New
CLMT Calumet Inc. 0.12% 35,000 $624K New
XIFR XPLR Infrastructure LP filed as NEXTERA ENERGY PARTNERS LP 0.10% 20,000 $552K Reduce -90.5%
AZPN Aspen Technology Inc. 0.09% 2,000 $478K New
OPAL Opal Fuels Inc. Class A 0.09% 125,000 $456K Add +150.0%

Show all 109 holdings

Options reported separately and not counted above: SMCI calls ($16.7M), KWEB calls ($11.9M), ASPN calls ($11.1M), RUN calls ($9.8M), CRM calls ($6.8M), WULF calls ($3.7M), GOOG calls ($3.2M), S calls ($2.5M), FSLR calls ($2.5M), GRMN puts ($2.1M), ON calls ($1.9M), UNG calls ($1.6M), and 7 more.

Portfolio Sells Q2 2024 → Q3 2024

FTAI Ftai Aviation Ltd. Reduce -85.7% 0.91% −3.79
PCRX Pacira Biosciences Inc. Sold out 0.00% −3.00
HASI Ha Sustainable Infrastructur Reduce -95.4% 0.16% −2.76
QRVO Qorvo Inc. Sold out 0.00% −1.80
CLS Celestica Inc. Reduce -33.3% 2.90% −1.77
DELL Dell Technologies -C Sold out 0.00% −1.70
TER Teradyne Inc. Sold out 0.00% −1.39
DAL Delta Air Lines Inc. Sold out 0.00% −1.33
RUN Sunrun Inc. Reduce -52.5% 3.83% −1.19
BIOX Bioceres Crop Solutions Corp. Reduce -8.8% 2.35% −1.16
IGV iShares Expanded Tech-Softwa Sold out 0.00% −1.10
OKTA Okta Inc. Sold out 0.00% −1.08
ASPN Aspen Aerogels Inc. Reduce -68.3% 0.66% −1.05
WDC Western Digital Corp. Sold out 0.00% −0.99
XIFR XPLR Infrastructure LP Reduce -90.5% 0.10% −0.95
NOW ServiceNow Inc. Sold out 0.00% −0.91
TSM Taiwan Semiconductor-SP ADR Sold out 0.00% −0.89
ZS Zscaler Inc. Sold out 0.00% −0.88
STKL Sunopta Inc. Reduce -43.0% 2.03% −0.85
GOOG Alphabet Inc. Class C Reduce -90.6% 0.08% −0.80
FIVN FIVE9 Inc. Reduce -75.0% 0.16% −0.79
APLD Applied Digital Corp. Sold out 0.00% −0.68
MRVL Marvell Technology Inc. Reduce -32.6% 1.80% −0.68
UBER Uber Technologies Inc. Sold out 0.00% −0.62
COHR Coherent Corp. Sold out 0.00% −0.55
PCOR Procore Technologies Inc. Reduce -40.0% 0.70% −0.50
SNX TD Synnex Corp. Sold out 0.00% −0.48
LYFT LYFT Inc. Class A Sold out 0.00% −0.45
GLBE Global-E Online Ltd. Sold out 0.00% −0.41
EOSE Eos Energy Enterprises Inc. Sold out 0.00% −0.35
STEM Stem Inc. Sold out 0.00% −0.35
BRBR Bellring Brands Inc. Reduce -30.0% 1.21% −0.34
PRIM Primoris Services Corp. Sold out 0.00% −0.34
MGNI Magnite Inc. Sold out 0.00% −0.32
ALT Altimmune Inc. Sold out 0.00% −0.30
VSH Vishay Intertechnology Inc. Sold out 0.00% −0.29
ARRY Array Technologies Inc. Sold out 0.00% −0.28
RAPT THERAPEUTICS INC Sold out 0.00% −0.28
EVLV Evolv Technologies Holdings Sold out 0.00% −0.24
ALAB Astera Labs Inc. Sold out 0.00% −0.22
ACLS Axcelis Technologies Inc. Sold out 0.00% −0.21
TYL Tyler Technologies Inc. Sold out 0.00% −0.20
ITRI Itron Inc. Reduce -15.6% 3.84% −0.19
FSLR First Solar Inc. Reduce -24.3% 1.32% −0.19
HUCK Huckleberry AI Inc. Sold out 0.00% −0.18
TXN Texas Instruments Inc. Reduce -24.1% 0.94% −0.17
NVDA Nvidia Corp. Reduce -10.8% 1.70% −0.15
GPRE Green Plains Inc. Sold out 0.00% −0.14
MYRG MYR Group Inc./Delaware Reduce -14.3% 0.29% −0.14
CMRC Commerce.com Inc. Sold out 0.00% −0.14

Portfolio Buys Q2 2024 → Q3 2024

AVGO Broadcom Inc. New 2.76% +2.76
SMCI Super Micro Computer Inc. New 2.01% +2.01
TAC Transalta Corp. New 1.77% +1.77
WULF Terawulf Inc. Add +3816.0% 1.73% +1.69
ELAN Elanco Animal Health Inc. New 1.60% +1.60
S Sentinelone Inc. Class A Add +42.4% 2.87% +1.18
VSTO Vista Outdoor Inc. New 1.11% +1.11
ILMN Illumina Inc. New 1.11% +1.11
HUT Hut 8 Corp. New 1.10% +1.10
GLW Corning Inc. Add +378.7% 1.29% +1.07
SLV iShares Silver Trust Add +645.4% 1.21% +1.07
IREN Iren Ltd. New 1.00% +1.00
MTZ Mastec Inc. Add +261.7% 1.26% +0.97
KWEB Kranesh Csi China Internet New 0.97% +0.97
DY Dycom Industries Inc. Add +482.5% 1.12% +0.96
ORCL Oracle Corp. Add +57.9% 1.92% +0.95
CRM Salesforce Inc. Add +91.2% 1.68% +0.89
CCJ Cameco Corp. New 0.82% +0.82
SMTC Semtech Corp. Add +9.3% 1.90% +0.81
NFLX Netflix Inc. New 0.74% +0.74
SGRY Surgery Partners Inc. Add +34.2% 1.56% +0.74
ADSK Autodesk Inc. Add +325.0% 0.89% +0.71
AMZN Amazon.com Inc. Add +66.7% 1.76% +0.71
REAL BROKERAGE INC/THE New 0.63% +0.63
ON On Semiconductor New 0.60% +0.60
AEIS Advanced Energy Industries New 0.60% +0.60
AEHR Aehr Test Systems Add +350.0% 0.66% +0.54
ALDX Aldeyra Therapeutics Inc. New 0.51% +0.51
INDV Indivior Ltd. Add +121.0% 1.77% +0.51
MSFT Microsoft Corp. Add +24.3% 2.51% +0.49
TEVA Teva Pharmaceutical-SP ADR Add +40.7% 1.20% +0.47
BIDU Baidu Inc. - Spon ADR New 0.44% +0.44
URA Global X Uranium ETF Add +300.0% 0.54% +0.41
LSCC Lattice Semiconductor Corp. New 0.36% +0.36
AKAM Akamai Technologies Inc. New 0.34% +0.34
BL Blackline Inc. Add +358.8% 0.41% +0.33
CLNE Clean Energy Fuels Corp. Add +29.8% 0.90% +0.33
PYPL PayPal Holdings Inc. New 0.32% +0.32
GDXJ Vaneck Junior Gold Miners New 0.32% +0.32
MIRM Mirum Pharmaceuticals Inc. Add +5.6% 1.40% +0.29
AMSC American Superconductor Corp. Add +150.0% 0.45% +0.28
DT Dynatrace Inc. Add +1.6% 1.27% +0.27
AAPL Apple Inc. Add +11.5% 1.15% +0.26
CEVA Ceva Inc. New 0.25% +0.25
ONTO Onto Innovation Inc. Add +47.4% 0.78% +0.25
MU Micron Technology Inc. New 0.24% +0.24
DOCN Digitalocean Holdings Inc. New 0.23% +0.23
ORN Orion Group Holdings Inc. New 0.22% +0.22
BOX Box Inc. Class A New 0.22% +0.22
CAMT Camtek Ltd. New 0.21% +0.21

Options Activity Q2 2024 → Q3 2024

SPY SS SPDR S&P 500 ETF Trust-US put Sold out 100,000 $54.4Mbefore exit
SMCI Super Micro Computer Inc. call New 40,000 $16.7M
KWEB Kranesh Csi China Internet call New 350,000 $11.9M
RUN Sunrun Inc. call Reduce -59.6% 545,000 $9.8M
CRM Salesforce Inc. call New 25,000 $6.8M
SNX TD Synnex Corp. call Sold out 40,000 $4.6Mbefore exit
PCRX Pacira Biosciences Inc. call Sold out 160,000 $4.6Mbefore exit
QCOM Qualcomm Inc. put Sold out 21,500 $4.3Mbefore exit
WULF Terawulf Inc. call New 800,000 $3.7M
APLD Applied Digital Corp. call Sold out 600,000 $3.6Mbefore exit
WOLF Wolfspeed Inc. call Sold out 150,000 $3.4Mbefore exit
GOOG Alphabet Inc. Class C call New 19,000 $3.2M
AMD Advanced Micro Devices put Sold out 17,000 $2.8Mbefore exit
S Sentinelone Inc. Class A call Add +250.0% 105,000 $2.5M
FSLR First Solar Inc. call New 10,000 $2.5M
FTNT Fortinet Inc. put Sold out 40,000 $2.4Mbefore exit
GRMN Garmin Ltd. put New 12,000 $2.1M
DELL Dell Technologies -C call Sold out 15,000 $2.1Mbefore exit
ON On Semiconductor call New 26,000 $1.9M
OKTA Okta Inc. call Sold out 20,000 $1.9Mbefore exit
OSCR Oscar Health Inc. Class A call Sold out 100,000 $1.6Mbefore exit
TEL Te Connectivity PLC call Sold out 10,000 $1.5Mbefore exit
MRVL Marvell Technology Inc. call Sold out 20,000 $1.4Mbefore exit
INDV Indivior Ltd. call Reduce -4.4% 119,500 $1.2M
GSM Ferroglobe PLC call Reduce -50.0% 250,500 $1.2M
AKAM Akamai Technologies Inc. call New 10,000 $1.0M
DT Dynatrace Inc. call Sold out 20,000 $895Kbefore exit
EOSE Eos Energy Enterprises Inc. call Sold out 650,000 $826Kbefore exit
INFN Infinera Corp. call Reduce -50.4% 119,000 $803K
BE Bloom Energy Corp. Class A call Sold out 50,000 $612Kbefore exit
HRB H&R Block Inc. call New 9,000 $572K
CNXC Concentrix Corp. put Sold out 9,000 $570Kbefore exit
VSH Vishay Intertechnology Inc. call Sold out 25,000 $558Kbefore exit
LYFT LYFT Inc. Class A call Sold out 35,000 $494Kbefore exit
CAMT Camtek Ltd. call New 6,000 $479K
SMTC Semtech Corp. call Sold out 15,000 $448Kbefore exit
CIFR Cipher Digital Inc. call Sold out 100,000 $415Kbefore exit
LRCX Lam Research Corp. put New 5,000 $408K
MCD McDonald's Corp. put Sold out 1,500 $382Kbefore exit
HUCK Huckleberry AI Inc. call Sold out 30,000 $232Kbefore exit
ZUO Zuora Inc. Class A call Sold out 10,000 $99Kbefore exit
CMRC Commerce.com Inc. call Sold out 5,000 $40Kbefore exit

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 130$921.1MSNDK, AMD, SEZL, WULF, BTSG
Q1 2026 117$656.4MUTHR, AVGO, SNDK, AMZN, ANET
Q4 2025 113$785.4MLLY, FSLR, LITE, AVGO, RUN
Q3 2025 99$652.1MFSLR, HUT, RUN, ORCL, AVGO
Q2 2025 108$611.9MFLR, NVDA, ANET, ORCL, AVGO
Q1 2025 102$431.7MFLR, AVGO, AGI, CLS, OKTA
Q4 2024 101$516.3MCRM, FLR, ITRI, OSCR, INDV
Q3 2024 109$528.5MOSCR, ITRI, RUN, FLR, CLS
Q2 2024 108$552.7MRUN, FTAI, CLS, ITRI, OSCR
Q1 2024 124$696.1MSPY, RUN, CLS, STKL, ITRI