Ardsley Advisory Partners LP 13F holdings, Q4 2025
Holdings as of December 31, 2025 · filings on SEC EDGAR · latest filing →
Ardsley Advisory Partners LP disclosed 113 US equity positions worth $785.4m in its Q4 2025 13F filing. The largest position was LLY at 5.5% of the reported book, followed by FSLR and LITE. Against the Q3 2025 filing, it opened 14 new positions, added to 16 and reduced 20 among the top 50 holdings.
What did Ardsley Advisory Partners LP own in Q4 2025? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q3 2025 |
|---|---|---|---|---|---|---|---|
| 1 | LLY ELI LILLY & CO | Healthcare | 5.5% | $43.0m | 40,000 | – | new |
| 2 | FSLR FIRST SOLAR INC | Technology | 3.9% | $30.7m | 117,500 | -9% | reduced |
| 3 | LITE LUMENTUM HLDGS INC | Technology | 3.8% | $29.5m | 80,000 | -7% | reduced |
| 4 | AVGO BROADCOM INC | Technology | 3.7% | $29.1m | 84,000 | 39% | added |
| 5 | RUN SUNRUN INC | Technology | 3.5% | $27.2m | 1,480,000 | -7% | reduced |
| 6 | NVDA NVIDIA CORPORATION | Technology | 3.0% | $23.3m | 125,000 | 58% | added |
| 7 | ARGX ARGENX SE | Healthcare | 2.6% | $20.2m | 24,000 | 60% | added |
| 8 | SLV ISHARES SILVER TR | 2.4% | $19.0m | 295,000 | 48% | added | |
| 9 | TEVA TEVA PHARMACEUTICAL INDS LTD | Healthcare | 2.3% | $18.1m | 580,000 | 16% | added |
| 10 | GOOG ALPHABET INC | Communication Services | 2.3% | $17.9m | 57,000 | -27% | reduced |
| 11 | SMTC SEMTECH CORP | Technology | 2.2% | $17.5m | 237,000 | 196% | added |
| 12 | TEL TE CONNECTIVITY PLC | Technology | 2.1% | $16.7m | 73,500 | – | new |
| 13 | HUT HUT 8 CORP | Financial Services | 2.1% | $16.5m | 360,000 | -55% | reduced |
| 14 | SEZL SEZZLE INC | Financial Services | 2.0% | $15.6m | 245,000 | – | new |
| 15 | AEIS ADVANCED ENERGY INDS | Industrials | 1.9% | $15.3m | 73,000 | 64% | added |
| 16 | WULF TERAWULF INC | Financial Services | 1.7% | $13.4m | 1,165,000 | -3% | reduced |
| 17 | SNDK SANDISK CORP | Technology | 1.7% | $13.3m | 56,000 | -44% | reduced |
| 18 | BTSG BRIGHTSPRING HEALTH SVCS INC | Healthcare | 1.7% | $13.1m | 350,000 | -22% | reduced |
| 19 | ANET ARISTA NETWORKS INC | Technology | 1.7% | $13.1m | 100,000 | 194% | added |
| 20 | SHOP SHOPIFY INC | Technology | 1.6% | $12.6m | 78,400 | -6% | reduced |
| 21 | AMZN AMAZON COM INC | Consumer Cyclical | 1.6% | $12.5m | 54,000 | -28% | reduced |
| 22 | TER TERADYNE INC | Technology | 1.5% | $11.6m | 60,000 | -32% | reduced |
| 23 | AGI ALAMOS GOLD INC NEW | Basic Materials | 1.5% | $11.6m | 300,000 | -8% | reduced |
| 24 | DNN DENISON MINES CORP | Energy | 1.4% | $10.9m | 4,100,000 | 105% | added |
| 25 | MSFT MICROSOFT CORP | Technology | 1.4% | $10.7m | 22,200 | -40% | reduced |
| 26 | NU NU HLDGS LTD | Financial Services | 1.4% | $10.7m | 640,000 | 2% | added |
| 27 | TXN TEXAS INSTRS INC | Technology | 1.3% | $10.4m | 60,000 | – | new |
| 28 | NXE NEXGEN ENERGY LTD | Energy | 1.3% | $10.3m | 1,125,000 | 350% | added |
| 29 | GSM FERROGLOBE PLC | Basic Materials | 1.3% | $9.8m | 2,120,000 | – | new |
| 30 | SMIN ISHARES TR | 1.2% | $9.8m | 140,000 | – | new | |
| 31 | TWLO TWILIO INC | Technology | 1.1% | $8.9m | 62,500 | – | new |
| 32 | CRM SALESFORCE INC | Technology | 1.1% | $8.7m | 33,000 | 450% | added |
| 33 | MDB MONGODB INC | Technology | 1.1% | $8.7m | 20,750 | – | new |
| 34 | JAZZ JAZZ PHARMACEUTICALS PLC | Healthcare | 1.1% | $8.5m | 50,000 | – | new |
| 35 | VIAV VIAVI SOLUTIONS INC | Technology | 1.0% | $7.8m | 440,000 | – | new |
| 36 | MIR MIRION TECHNOLOGIES INC | Industrials | 1.0% | $7.6m | 325,000 | -1% | reduced |
| 37 | ALDX ALDEYRA THERAPEUTICS INC | Healthcare | 1.0% | $7.5m | 1,450,000 | -24% | reduced |
| 38 | EBAY EBAY INC. | Consumer Cyclical | 0.9% | $7.4m | 85,000 | 44% | added |
| 39 | PANW PALO ALTO NETWORKS INC | Technology | 0.9% | $7.4m | 40,000 | 28% | added |
| 40 | WGS GENEDX HOLDINGS CORP | Healthcare | 0.9% | $7.2m | 55,000 | -8% | reduced |
| 41 | ONTO ONTO INNOVATION INC | Technology | 0.9% | $6.9m | 43,500 | 7% | added |
| 42 | SANM SANMINA CORPORATION | Technology | 0.9% | $6.8m | 45,200 | – | new |
| 43 | CVS CVS HEALTH CORP | Healthcare | 0.9% | $6.7m | 85,000 | -15% | reduced |
| 44 | BRBR BELLRING BRANDS INC | Consumer Defensive | 0.8% | $6.4m | 240,000 | – | new |
| 45 | EOSE EOS ENERGY ENTERPRISES INC | Industrials | 0.8% | $6.4m | 555,000 | -65% | reduced |
| 46 | LSCC LATTICE SEMICONDUCTOR CORP | Technology | 0.8% | $6.3m | 86,000 | -25% | reduced |
| 47 | ORCL ORACLE CORP | Technology | 0.7% | $5.8m | 30,000 | -65% | reduced |
| 48 | RH RH | Consumer Cyclical | 0.7% | $5.4m | 30,000 | – | new |
| 49 | VCYT VERACYTE INC | Healthcare | 0.7% | $5.3m | 125,000 | – | new |
| 50 | CWEN CLEARWAY ENERGY INC | Utilities | 0.6% | $5.0m | 150,000 | 20% | added |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.