Castleark Management LLC
In its 13F for Q2 2024 (holdings as of June 30, 2024, filed August 14, 2024), Castleark Management LLC reported 271 stock positions worth $2.4 billion. Its top holding was Nvidia (NVDA) at 7.5% of the portfolio, followed by Microsoft (MSFT, 7.3%) and Apple (AAPL, 5.1%). Compared with Q1 2024, it opened 32 new positions, sold out of 39, added to 53 and reduced 85. The biggest buy was Applied Materials (AMAT, shares +60%) and the biggest sale an exit from Las Vegas Sands (LVS).
- Most Recent 13F
- Q2 2026
- Location
- CHICAGO, IL
- CIK
- 0001106832
- Portfolio Value
- $2.4B (Q2 2024)
- SEC Filing
- 0001106832-24-000006 ↗ filed Aug 14, 2024
Holdings Value
Holdings 271 stocks · $2.4B
| NVDA Nvidia Corp. | 7.46% | 1,478,903 | $182.7M | Reduce -16.4% |
| MSFT Microsoft Corp. | 7.27% | 398,195 | $178.0M | Add +3.8% |
| AAPL Apple Inc. | 5.07% | 589,141 | $124.1M | Add +3.6% |
| AMZN Amazon.com Inc. | 4.45% | 563,597 | $108.9M | Add +11.4% |
| GOOGL Alphabet Inc. Class A | 3.75% | 503,852 | $91.8M | No change |
| LLY Eli Lilly & Co. | 2.91% | 78,732 | $71.3M | Add +1.3% |
| META Meta Platforms Inc. Class A | 2.57% | 124,679 | $62.9M | Reduce -26.5% |
| LRCX Lam Research Corp. | 2.47% | 56,802 | $60.5M | Add +4.8% |
| MA Mastercard Inc. Class A | 2.40% | 133,017 | $58.7M | Add +1.3% |
| AMAT Applied Materials Inc. | 2.33% | 241,614 | $57.0M | Add +60.0% |
| NOW ServiceNow Inc. | 2.07% | 64,407 | $50.7M | Reduce -23.3% |
| ISRG Intuitive Surgical Inc. | 2.06% | 113,196 | $50.4M | Add +1.3% |
| DXCM Dexcom Inc. | 2.03% | 438,078 | $49.7M | Add +1.3% |
| V Visa Inc. Class A | 1.92% | 178,919 | $47.0M | Add +1.3% |
| UNP Union Pacific Corp. | 1.73% | 187,441 | $42.4M | Add +89.8% |
| SYK Stryker Corp. | 1.70% | 121,992 | $41.5M | Add +1.3% |
| EFA iShares MSCI Eafe ETF | 1.17% | 364,410 | $28.5M | No change |
| ASML ASML Holding NV-NY Reg SHS | 1.04% | 24,994 | $25.6M | Add +1.3% |
| IWN iShares Russell 2000 Value E | 1.02% | 163,710 | $24.9M | No change |
| VRTX Vertex Pharmaceuticals Inc. | 0.90% | 46,803 | $21.9M | Add +6311.4% |
| CL Colgate-Palmolive Co. | 0.88% | 221,053 | $21.5M | New |
| NFLX Netflix Inc. | 0.84% | 30,510 | $20.6M | New |
| SNPS Synopsys Inc. | 0.78% | 31,932 | $19.0M | Add +1.3% |
| SLB SLB Ltd. filed as SCHLUMBERGER LTD | 0.72% | 374,690 | $17.7M | Add +121.7% |
| FCX Freeport-McMoran Inc. | 0.64% | 324,000 | $15.7M | Add +112.0% |
| AXP American Express Co. | 0.64% | 67,975 | $15.7M | No change |
| EWJ iShares MSCI Japan ETF | 0.62% | 222,650 | $15.2M | No change |
| JPM JPMorgan Chase & Co. | 0.60% | 72,365 | $14.6M | No change |
| MSCI MSCI Inc. | 0.58% | 29,549 | $14.2M | Add +1.3% |
| DE Deere & Co. | 0.57% | 37,370 | $14.0M | Add +1.6% |
| XLI SS Industrial Select Sector | 0.56% | 111,690 | $13.6M | Reduce -50.0% |
| ADBE Adobe Inc. | 0.53% | 23,554 | $13.1M | Reduce -42.0% |
| FTI Technipfmc PLC | 0.52% | 483,130 | $12.6M | Reduce -0.7% |
| FTAI Ftai Aviation Ltd. | 0.50% | 119,190 | $12.3M | Reduce -0.9% |
| XHB SS SPDR S&P Homebldrs ETF | 0.50% | 121,590 | $12.3M | Reduce -50.0% |
| ETN Eaton Corp. PLC | 0.49% | 38,245 | $12.0M | No change |
| APG Api Group Corp. | 0.45% | 291,383 | $11.0M | Reduce -3.6% |
| XLV SS Health Care Select Sector | 0.42% | 71,120 | $10.4M | No change |
| UNH Unitedhealth Group Inc. | 0.42% | 20,034 | $10.2M | Add +2.0% |
| MEDP Medpace Holdings Inc. | 0.41% | 24,570 | $10.1M | Reduce -0.8% |
| C Citigroup Inc. | 0.40% | 154,414 | $9.8M | No change |
| EVR Evercore Inc. Class A | 0.40% | 46,540 | $9.7M | Reduce -0.8% |
| GLD SPDR Gold Shares | 0.40% | 44,995 | $9.7M | No change |
| TJX TJX Companies Inc. filed as TJX COS INC NEW | 0.39% | 87,660 | $9.7M | No change |
| ADMA Adma Biologics Inc. | 0.38% | 838,086 | $9.4M | Add +2.4% |
| CYBR Cyberark Software Ltd./Israel | 0.38% | 34,010 | $9.3M | Add +7.8% |
| BCO The Brink's Co. | 0.37% | 88,100 | $9.0M | Add +8.1% |
| GKOS Glaukos Corp. | 0.36% | 74,470 | $8.8M | Add +14.7% |
| RDNT Radnet Inc. | 0.36% | 148,463 | $8.7M | Reduce -0.8% |
| ONT Onterris Inc. filed as MONTROSE ENVIRONMENTAL GROUP | 0.36% | 195,122 | $8.7M | New |
| UBER Uber Technologies Inc. | 0.35% | 117,490 | $8.5M | No change |
| KD Kyndryl Holdings Inc. | 0.35% | 323,570 | $8.5M | Add +3.7% |
| CRS Carpenter Technology | 0.35% | 77,430 | $8.5M | Add +8.7% |
| MTSI Macom Technology Solutions H | 0.34% | 75,740 | $8.4M | Add +12.5% |
| ESI Element Solutions Inc. | 0.34% | 308,290 | $8.4M | Add +7.8% |
| XPO Xpo Inc. | 0.34% | 78,344 | $8.3M | Reduce -0.8% |
| SAIA Saia Inc. | 0.34% | 17,460 | $8.3M | Reduce -0.8% |
| NTRA Natera Inc. | 0.33% | 74,000 | $8.0M | Reduce -0.8% |
| TWST Twist Bioscience Corp. | 0.32% | 157,380 | $7.8M | Add +7.3% |
| HQY Healthequity Inc. | 0.32% | 89,800 | $7.7M | Reduce -0.9% |
| APPF Appfolio Inc. Class A | 0.32% | 31,600 | $7.7M | Reduce -0.8% |
| THC Tenet Healthcare Corp. | 0.32% | 58,090 | $7.7M | Add +172.5% |
| RACE Ferrari NV | 0.31% | 18,794 | $7.7M | Add +3.8% |
| JLL Jones Lang Lasalle Inc. | 0.31% | 36,890 | $7.6M | Add +10.3% |
| MTDR Matador Resources Co. | 0.31% | 127,050 | $7.6M | Add +84.3% |
| WIX Wix.com Ltd. | 0.31% | 46,960 | $7.5M | Reduce -0.8% |
| ACWX iShares MSCI Acwi Ex US ETF | 0.30% | 139,850 | $7.4M | No change |
| TTEK Tetra Tech Inc. | 0.30% | 35,970 | $7.4M | Reduce -0.8% |
| PNR Pentair PLC | 0.30% | 95,190 | $7.3M | Reduce -16.5% |
| CASY Casey's General Stores Inc. | 0.30% | 19,080 | $7.3M | Reduce -0.8% |
| DELL Dell Technologies -C | 0.29% | 51,990 | $7.2M | Add +18.2% |
| CLS Celestica Inc. | 0.29% | 124,310 | $7.1M | Reduce -36.4% |
| VLO Valero Energy Corp. | 0.29% | 45,160 | $7.1M | Reduce -65.2% |
| MOD Modine Manufacturing Co. | 0.28% | 68,980 | $6.9M | Reduce -0.9% |
| KBR KBR Inc. | 0.28% | 107,280 | $6.9M | New |
| ASH Ashland Inc. | 0.27% | 70,940 | $6.7M | Reduce -0.8% |
| SF Stifel Financial Corp. | 0.27% | 79,630 | $6.7M | Add +14.6% |
| XLF SS Financial Select Sector | 0.27% | 162,290 | $6.7M | No change |
| ADI Analog Devices Inc. | 0.27% | 28,710 | $6.6M | New |
| FLR Fluor Corp. | 0.27% | 149,780 | $6.5M | Reduce -0.8% |
| VCEL Vericel Corp. | 0.27% | 142,060 | $6.5M | Add +9.1% |
| TMDX Transmedics Group Inc. | 0.26% | 42,900 | $6.5M | New |
| MCHP Microchip Technology Inc. | 0.26% | 70,250 | $6.4M | Add +9656.9% |
| CWST Casella Waste Systems Inc. Class A | 0.26% | 64,250 | $6.4M | Add +12.9% |
| VRNS Varonis Systems Inc. | 0.26% | 132,840 | $6.4M | Reduce -29.3% |
| BLBD Blue Bird Corp. | 0.26% | 117,950 | $6.4M | Reduce -15.0% |
| NTNX Nutanix Inc. Class A | 0.26% | 110,390 | $6.3M | Reduce -0.8% |
| KNF Knife River Corp. | 0.25% | 88,770 | $6.2M | Reduce -8.7% |
| CHDN Churchill Downs Inc. | 0.25% | 44,280 | $6.2M | New |
| CR Crane Co. | 0.25% | 42,000 | $6.1M | Add +25.9% |
| LNWO Light & Wonder Inc. | 0.25% | 57,920 | $6.1M | Reduce -23.8% |
| IBP Installed Building Products | 0.25% | 29,480 | $6.1M | Reduce -0.8% |
| VVV Valvoline Inc. | 0.25% | 139,920 | $6.0M | New |
| SNX TD Synnex Corp. | 0.25% | 52,290 | $6.0M | New |
| TSM Taiwan Semiconductor-SP ADR | 0.24% | 33,940 | $5.9M | Add +98.5% |
| ONTO Onto Innovation Inc. | 0.24% | 26,780 | $5.9M | Reduce -34.3% |
| ET Energy Transfer LP | 0.24% | 360,310 | $5.8M | Reduce -4.9% |
| MWA Mueller Water Products Inc. Class A | 0.24% | 324,710 | $5.8M | New |
| CMPR Cimpress PLC | 0.24% | 66,150 | $5.8M | Reduce -1.0% |
| GAP The Gap Inc. | 0.23% | 240,566 | $5.7M | Reduce -3.8% |
Portfolio Sells Q1 2024 → Q2 2024
| LVS Las Vegas Sands Corp. | Sold out | 0.00% | −0.91 |
| META Meta Platforms Inc. Class A | Reduce -26.5% | 2.57% | −0.86 |
| XOM Exxon Mobil Corp. | Reduce -90.0% | 0.08% | −0.78 |
| VLO Valero Energy Corp. | Reduce -65.2% | 0.29% | −0.63 |
| XHB SS SPDR S&P Homebldrs ETF | Reduce -50.0% | 0.50% | −0.63 |
| XLI SS Industrial Select Sector | Reduce -50.0% | 0.56% | −0.62 |
| NOW ServiceNow Inc. | Reduce -23.3% | 2.07% | −0.59 |
| LULU Lululemon Athletica Inc. | Sold out | 0.00% | −0.56 |
| SMCI Super Micro Computer Inc. | Reduce -88.0% | 0.05% | −0.49 |
| JBHT Hunt (jb) Transprt SVCS Inc. | Reduce -87.4% | 0.04% | −0.34 |
| ADBE Adobe Inc. | Reduce -42.0% | 0.53% | −0.32 |
| TREX Trex Company Inc. | Reduce -96.2% | 0.01% | −0.29 |
| HEES H&E Equipment Services Inc. | Sold out | 0.00% | −0.29 |
| FCFS Firstcash Holdings Inc. | Reduce -65.3% | 0.11% | −0.28 |
| CRM Salesforce Inc. | Sold out | 0.00% | −0.27 |
| LEN Lennar Corp. Class A | Reduce -50.0% | 0.20% | −0.27 |
| HD Home Depot Inc. | Reduce -46.4% | 0.23% | −0.26 |
| EXP Eagle Materials Inc. | Sold out | 0.00% | −0.25 |
| WEX Wex Inc. | Sold out | 0.00% | −0.24 |
| NXT Nextpower Inc. | Sold out | 0.00% | −0.24 |
| MAS Masco Corp. | Sold out | 0.00% | −0.24 |
| SPT Sprout Social Inc. Class A | Sold out | 0.00% | −0.23 |
| H Hyatt Hotels Corp. Class A | Sold out | 0.00% | −0.22 |
| KRE SS SPDR S&P Regional Bank | Sold out | 0.00% | −0.22 |
| ASO Academy Sports & Outdoors Inc. | Sold out | 0.00% | −0.21 |
| CWH Camping World Holdings Inc. Class A | Sold out | 0.00% | −0.21 |
| FROG Jfrog Ltd. | Sold out | 0.00% | −0.21 |
| XBI SS SPDR S&P Biotech ETF | Reduce -50.0% | 0.19% | −0.21 |
| MYRG MYR Group Inc./Delaware | Sold out | 0.00% | −0.20 |
| RUSHA Rush Enterprises Inc. Class A | Sold out | 0.00% | −0.19 |
| BA The Boeing Co. | Reduce -86.6% | 0.03% | −0.18 |
| KTB Kontoor Brands Inc. | Reduce -60.9% | 0.12% | −0.17 |
| KNX Knight-Swift Transportation | Sold out | 0.00% | −0.17 |
| XRT SS SPDR S&P Retail ETF | Sold out | 0.00% | −0.16 |
| SMTC Semtech Corp. | Sold out | 0.00% | −0.15 |
| PVH PVH Corp. | Sold out | 0.00% | −0.14 |
| PRO Pros Holdings Inc. | Sold out | 0.00% | −0.14 |
| SKY Champion Homes Inc. | Reduce -38.2% | 0.13% | −0.14 |
| GDYN Grid Dynamics Holdings Inc. | Sold out | 0.00% | −0.13 |
| ARVN Arvinas Inc. | Sold out | 0.00% | −0.13 |
| RMBS Rambus Inc. | Sold out | 0.00% | −0.13 |
| ESTC Elastic NV | Reduce -95.1% | 0.01% | −0.12 |
| VKTX Viking Therapeutics Inc. | Reduce -37.5% | 0.08% | −0.11 |
| VRNS Varonis Systems Inc. | Reduce -29.3% | 0.26% | −0.11 |
| PNR Pentair PLC | Reduce -16.5% | 0.30% | −0.11 |
| AXSM Axsome Therapeutics Inc. | Sold out | 0.00% | −0.11 |
| IMVT Immunovant Inc. | Reduce -93.5% | 0.01% | −0.10 |
| PJT PJT Partners Inc. Class A | Sold out | 0.00% | −0.10 |
| SYNA Synaptics Inc. | Sold out | 0.00% | −0.10 |
| SAIA Saia Inc. | Reduce -0.8% | 0.34% | −0.09 |
Portfolio Buys Q1 2024 → Q2 2024
| AMAT Applied Materials Inc. | Add +60.0% | 2.33% | +1.03 |
| AAPL Apple Inc. | Add +3.6% | 5.07% | +1.01 |
| VRTX Vertex Pharmaceuticals Inc. | Add +6311.4% | 0.90% | +0.88 |
| CL Colgate-Palmolive Co. | New | 0.88% | +0.88 |
| NFLX Netflix Inc. | New | 0.84% | +0.84 |
| UNP Union Pacific Corp. | Add +89.8% | 1.73% | +0.72 |
| AMZN Amazon.com Inc. | Add +11.4% | 4.45% | +0.65 |
| MSFT Microsoft Corp. | Add +3.8% | 7.27% | +0.56 |
| LLY Eli Lilly & Co. | Add +1.3% | 2.91% | +0.40 |
| ONT Onterris Inc. | New | 0.36% | +0.36 |
| FCX Freeport-McMoran Inc. | Add +112.0% | 0.64% | +0.34 |
| SLB SLB Ltd. | Add +121.7% | 0.72% | +0.34 |
| KBR KBR Inc. | New | 0.28% | +0.28 |
| LRCX Lam Research Corp. | Add +4.8% | 2.47% | +0.28 |
| ADI Analog Devices Inc. | New | 0.27% | +0.27 |
| TMDX Transmedics Group Inc. | New | 0.26% | +0.26 |
| MCHP Microchip Technology Inc. | Add +9656.9% | 0.26% | +0.26 |
| CHDN Churchill Downs Inc. | New | 0.25% | +0.25 |
| VVV Valvoline Inc. | New | 0.25% | +0.25 |
| SNX TD Synnex Corp. | New | 0.25% | +0.25 |
| MWA Mueller Water Products Inc. Class A | New | 0.24% | +0.24 |
| THC Tenet Healthcare Corp. | Add +172.5% | 0.32% | +0.22 |
| ISRG Intuitive Surgical Inc. | Add +1.3% | 2.06% | +0.20 |
| ZETA Zeta Global Holdings Corp. Class A | New | 0.20% | +0.20 |
| PI Impinj Inc. | New | 0.20% | +0.20 |
| OLLI Ollie's Bargain Outlet Holdi | New | 0.19% | +0.19 |
| LNTH Lantheus Holdings Inc. | New | 0.19% | +0.19 |
| HAS Hasbro Inc. | New | 0.18% | +0.18 |
| OMF Onemain Holdings Inc. | New | 0.18% | +0.18 |
| ENSG The Ensign Group Inc. | New | 0.18% | +0.18 |
| SITM Sitime Corp. | New | 0.18% | +0.18 |
| UTZ Utz Brands Inc. | New | 0.17% | +0.17 |
| BPMC Blueprint Medicines Corp. | New | 0.17% | +0.17 |
| ADMA Adma Biologics Inc. | Add +2.4% | 0.38% | +0.16 |
| VMI Valmont Industries | New | 0.15% | +0.15 |
| NEOG Neogen Corp. | New | 0.15% | +0.15 |
| KFY Korn Ferry | New | 0.15% | +0.15 |
| TSM Taiwan Semiconductor-SP ADR | Add +98.5% | 0.24% | +0.14 |
| CRS Carpenter Technology | Add +8.7% | 0.35% | +0.13 |
| SG Sweetgreen Inc. Class A | New | 0.13% | +0.13 |
| RXST Rxsight Inc. | New | 0.12% | +0.12 |
| GMED Globus Medical Inc. Class A | New | 0.12% | +0.12 |
| MTDR Matador Resources Co. | Add +84.3% | 0.31% | +0.12 |
| PRCT Procept Biorobotics Corp. | Add +62.2% | 0.23% | +0.11 |
| FOXF Fox Factory Holding Corp. | New | 0.11% | +0.11 |
| TWST Twist Bioscience Corp. | Add +7.3% | 0.32% | +0.11 |
| AMKR Amkor Technology Inc. | New | 0.11% | +0.11 |
| GKOS Glaukos Corp. | Add +14.7% | 0.36% | +0.11 |
| DELL Dell Technologies -C | Add +18.2% | 0.29% | +0.08 |
| MTSI Macom Technology Solutions H | Add +12.5% | 0.34% | +0.08 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 309 | $3.7B | NVDA, GOOGL, AAPL, LRCX, MSFT |
| Q1 2026 | 292 | $3.0B | NVDA, GOOGL, MSFT, SPIB, AAPL |
| Q4 2025 | 294 | $3.4B | NVDA, MSFT, GOOGL, AMZN, AAPL |
| Q3 2025 | 284 | $3.6B | CARK, NVDA, MSFT, META, AAPL |
| Q2 2025 | 275 | $3.3B | CARK, NVDA, MSFT, AMZN, META |
| Q1 2025 | 280 | $2.9B | CARK, AAPL, NVDA, AMZN, MSFT |
| Q4 2024 | 283 | $2.9B | AAPL, NVDA, MSFT, SPIB, AMZN |
| Q3 2024 | 272 | $2.5B | MSFT, NVDA, AAPL, AMZN, GOOGL |
| Q2 2024 | 271 | $2.4B | NVDA, MSFT, AAPL, AMZN, GOOGL |
| Q1 2024 | 278 | $2.4B | MSFT, NVDA, AAPL, AMZN, META |