Castleark Management LLC
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 13, 2026), Castleark Management LLC reported 294 stock positions worth $3.4 billion. Its top holding was Nvidia (NVDA) at 7.7% of the portfolio, followed by Microsoft (MSFT, 5.2%) and Alphabet Class A (GOOGL, 3.5%). Compared with Q3 2025, it opened 63 new positions, sold out of 53, added to 121 and reduced 48. The biggest buy was Eli Lilly (LLY, shares +83%) and the biggest sale an exit from Castleark Large Growth ETF (CARK).
- Most Recent 13F
- Q2 2026
- Location
- CHICAGO, IL
- CIK
- 0001106832
- Portfolio Value
- $3.4B (Q4 2025)
- SEC Filing
- 0001106832-26-000001 ↗ filed Feb 13, 2026
Holdings Value
Holdings 294 stocks · $3.4B
| NVDA Nvidia Corp. | 7.71% | 1,408,146 | $262.6M | Add +2.2% |
| MSFT Microsoft Corp. | 5.25% | 369,460 | $178.7M | Add +2.2% |
| GOOGL Alphabet Inc. Class A | 3.51% | 381,639 | $119.5M | Add +2.1% |
| AMZN Amazon.com Inc. | 3.20% | 472,149 | $109.0M | Add +20.9% |
| AAPL Apple Inc. | 3.09% | 387,041 | $105.2M | Add +1.9% |
| LLY Eli Lilly & Co. | 2.57% | 81,578 | $87.7M | Add +83.1% |
| SPIB SS SPDR P Int C Corp. ETF | 2.50% | 2,519,370 | $85.2M | No change |
| META Meta Platforms Inc. Class A | 2.37% | 122,415 | $80.8M | Reduce -16.9% |
| VMBS Vanguard Mortgage-Backed Sec | 2.36% | 1,705,540 | $80.3M | No change |
| GOVT iShares US Treasury Bond ETF | 2.25% | 3,329,569 | $76.7M | Add +2.2% |
| AVGO Broadcom Inc. | 2.09% | 205,880 | $71.3M | Reduce 0.0% |
| LRCX Lam Research Corp. | 1.87% | 372,876 | $63.8M | Reduce -26.0% |
| SCHW Schwab (charles) Corp. | 1.83% | 622,535 | $62.2M | Add +1.8% |
| V Visa Inc. Class A | 1.76% | 170,478 | $59.8M | Add +2.0% |
| MA Mastercard Inc. Class A | 1.72% | 102,451 | $58.5M | Add +2.1% |
| SHOP Shopify Inc. Class A | 1.63% | 345,382 | $55.6M | Add +2.1% |
| ANET Arista Networks Inc. | 1.58% | 411,277 | $53.9M | Add +2.2% |
| NOW ServiceNow Inc. | 1.22% | 270,420 | $41.4M | Add +2.1% |
| SPTS SS SPDR P St Term TSY ETF | 1.15% | 1,334,080 | $39.1M | No change |
| BX Blackstone Inc. | 1.11% | 244,268 | $37.7M | Add +2.1% |
| GILD Gilead Sciences Inc. | 1.00% | 277,328 | $34.0M | Add +96.6% |
| EFA iShares MSCI Eafe ETF | 0.98% | 347,580 | $33.4M | No change |
| SNOW Snowflake Inc. | 0.97% | 151,192 | $33.2M | Add +2.1% |
| MCHP Microchip Technology Inc. | 0.96% | 515,494 | $32.8M | Add +9.1% |
| GEV GE Vernova Inc. | 0.92% | 47,741 | $31.2M | Add +2.5% |
| ULTA Ulta Beauty Inc. | 0.89% | 49,941 | $30.2M | New |
| BKNG Booking Holdings Inc. | 0.86% | 5,472 | $29.3M | Add +165.6% |
| TLH iShares 10-20 Year Treasury | 0.77% | 258,432 | $26.3M | No change |
| UBER Uber Technologies Inc. | 0.74% | 309,136 | $25.3M | Add +20.2% |
| PODD Insulet Corp. | 0.68% | 80,957 | $23.0M | Add +60.3% |
| AMD Advanced Micro Devices | 0.66% | 104,746 | $22.4M | New |
| VRT Vertiv Holdings Co. Class A | 0.59% | 124,737 | $20.2M | Add +2.1% |
| MBB iShares MBS ETF | 0.57% | 204,235 | $19.4M | Add +3.7% |
| SPOT Spotify Technology SA | 0.57% | 33,465 | $19.4M | Add +2.2% |
| GE General Electric filed as GE AEROSPACE | 0.56% | 61,380 | $18.9M | Add +16.4% |
| TPR Tapestry Inc. | 0.53% | 142,084 | $18.2M | New |
| DAL Delta Air Lines Inc. | 0.53% | 260,740 | $18.1M | Add +13.6% |
| VCLT Vanguard Long-Term Corp. Bond | 0.53% | 236,450 | $17.9M | No change |
| GH Guardant Health Inc. | 0.49% | 165,043 | $16.9M | Add +3.1% |
| ADI Analog Devices Inc. | 0.49% | 61,172 | $16.6M | Add +2.9% |
| ODFL Old Dominion Freight Line | 0.44% | 95,730 | $15.0M | New |
| JPM JPMorgan Chase & Co. | 0.42% | 44,635 | $14.4M | Reduce -16.4% |
| ETN Eaton Corp. PLC | 0.42% | 44,514 | $14.2M | Add +3.4% |
| ASND Ascendis Pharma A/S | 0.42% | 66,336 | $14.1M | Add +55.5% |
| MS Morgan Stanley | 0.41% | 79,470 | $14.1M | Reduce -11.9% |
| IGIB iShares 5-10Y Inv Grade Corp. | 0.41% | 259,994 | $14.0M | No change |
| TJX TJX Companies Inc. filed as TJX COS INC NEW | 0.41% | 90,620 | $13.9M | Add +17.8% |
| C Citigroup Inc. | 0.40% | 117,464 | $13.7M | Add +50.7% |
| DY Dycom Industries Inc. | 0.38% | 38,166 | $12.9M | Add +27.1% |
| TSLA Tesla Inc. | 0.37% | 28,100 | $12.6M | Add +903.6% |
| WMT Walmart Inc. | 0.37% | 113,270 | $12.6M | Reduce -19.8% |
| LGND Ligand Pharmaceuticals | 0.37% | 66,736 | $12.6M | Add +3.2% |
| SF Stifel Financial Corp. | 0.36% | 98,530 | $12.3M | Add +12.4% |
| SITM Sitime Corp. | 0.35% | 33,554 | $11.9M | Add +3.0% |
| KTOS Kratos Defense & Security | 0.34% | 152,904 | $11.6M | Reduce -15.5% |
| LITE Lumentum Holdings Inc. | 0.34% | 31,153 | $11.5M | Reduce -52.7% |
| EQT Eqt Corp. | 0.32% | 205,765 | $11.0M | Add +46.5% |
| TSM Taiwan Semiconductor-SP ADR | 0.32% | 36,290 | $11.0M | Reduce -34.7% |
| PIPR Piper Sandler Cos | 0.32% | 32,456 | $11.0M | Add +16.6% |
| EVR Evercore Inc. Class A | 0.32% | 32,046 | $10.9M | Add +3.1% |
| SANM Sanmina Corp. | 0.32% | 72,459 | $10.9M | Add +29.2% |
| BA The Boeing Co. | 0.31% | 48,770 | $10.6M | Add +1334.4% |
| AEIS Advanced Energy Industries | 0.30% | 49,133 | $10.3M | Add +3.0% |
| SPXC SPX Technologies Inc. | 0.29% | 49,827 | $10.0M | Add +2.8% |
| XMTR Xometry Inc. Class A | 0.29% | 167,478 | $10.0M | Add +2.1% |
| XBI SS SPDR S&P Biotech ETF | 0.29% | 80,890 | $9.9M | No change |
| FCFS Firstcash Holdings Inc. | 0.29% | 61,200 | $9.8M | New |
| WGS Genedx Holdings Corp. | 0.28% | 74,016 | $9.6M | Add +3.1% |
| CECO Ceco Environmental Corp. | 0.28% | 156,505 | $9.4M | Add +2.0% |
| RKT Rocket Cos Inc. Class A | 0.27% | 481,560 | $9.3M | Add +25.6% |
| IDCC Interdigital Inc. | 0.27% | 28,936 | $9.2M | Add +3.1% |
| NXT Nextpower Inc. | 0.27% | 105,484 | $9.2M | Reduce -9.9% |
| FIVE Five Below | 0.27% | 48,340 | $9.1M | Add +27.8% |
| TTMI TTM Technologies | 0.27% | 131,850 | $9.1M | Add +3.1% |
| ARQT Arcutis Biotherapeutics Inc. | 0.26% | 309,430 | $9.0M | New |
| GTX Garrett Motion Inc. | 0.26% | 514,400 | $9.0M | New |
| FTI Technipfmc PLC | 0.26% | 200,886 | $9.0M | Add +3.0% |
| IRTC Irhythm Holdings Inc. | 0.26% | 50,193 | $8.9M | Reduce -14.0% |
| DOCN Digitalocean Holdings Inc. | 0.26% | 184,989 | $8.9M | New |
| JBTM JBT Marel Corp. | 0.26% | 58,539 | $8.8M | Add +14.6% |
| RMBS Rambus Inc. | 0.26% | 95,578 | $8.8M | Reduce -13.8% |
| BBIO Bridgebio Pharma Inc. | 0.26% | 114,017 | $8.7M | Reduce -7.8% |
| PLNT Planet Fitness Inc. Class A | 0.26% | 80,305 | $8.7M | Reduce -2.7% |
| XLV SS Health Care Select Sector | 0.26% | 56,130 | $8.7M | New |
| MRCY Mercury Systems Inc. | 0.25% | 118,458 | $8.6M | Add +16.7% |
| MDGL Madrigal Pharmaceuticals Inc. | 0.25% | 14,466 | $8.4M | Add +45.7% |
| WCC Wesco International Inc. | 0.25% | 34,237 | $8.4M | Add +3.0% |
| RACE Ferrari NV | 0.24% | 22,352 | $8.3M | Add +1.6% |
| TLT iShares 20+ Year Treasury BD | 0.24% | 94,540 | $8.2M | No change |
| HCI Hci Group Inc. | 0.24% | 42,585 | $8.2M | Add +3.1% |
| MIR Mirion Technologies Inc. | 0.24% | 348,130 | $8.2M | New |
| AR Antero Resources Corp. | 0.24% | 234,290 | $8.1M | New |
| GM General Motors Co. | 0.24% | 99,280 | $8.1M | New |
| APG Api Group Corp. | 0.24% | 210,993 | $8.1M | Add +3.1% |
| COF Capital One Financial Corp. | 0.23% | 32,920 | $8.0M | Add +104.0% |
| CAT Caterpillar Inc. | 0.23% | 13,920 | $8.0M | Reduce -14.2% |
| PEGA Pegasystems Inc. | 0.23% | 133,167 | $8.0M | Add +3.1% |
| VMI Valmont Industries | 0.23% | 19,706 | $7.9M | Add +3.0% |
| KNSA Kiniksa Pharmaceuticals Inte | 0.23% | 192,192 | $7.9M | Add +21.2% |
| CRDO Credo Technology Group Holdi | 0.23% | 54,916 | $7.9M | Add +6.1% |
Portfolio Sells Q3 2025 → Q4 2025
| CARK Castleark Large Growth ETF | Sold out | 0.00% | −9.03 |
| NFLX Netflix Inc. | Sold out | 0.00% | −1.85 |
| META Meta Platforms Inc. Class A | Reduce -16.9% | 2.37% | −0.66 |
| DXCM Dexcom Inc. | Sold out | 0.00% | −0.57 |
| XRT SS SPDR S&P Retail ETF | Sold out | 0.00% | −0.45 |
| ORCL Oracle Corp. | Sold out | 0.00% | −0.40 |
| AVAV Aerovironment Inc. | Reduce -75.7% | 0.07% | −0.30 |
| LIF LIFE360 Inc. | Sold out | 0.00% | −0.30 |
| HD Home Depot Inc. | Reduce -65.5% | 0.13% | −0.29 |
| PNC PNC Financial Services Group | Sold out | 0.00% | −0.27 |
| CEG Constellation Energy | Reduce -66.4% | 0.15% | −0.25 |
| MPC Marathon Petroleum Corp. | Sold out | 0.00% | −0.25 |
| LNG Cheniere Energy Inc. | Reduce -53.6% | 0.16% | −0.24 |
| XTL SS SPDR S&P Telecom ETF | Sold out | 0.00% | −0.23 |
| PM Philip Morris International | Sold out | 0.00% | −0.23 |
| AMSC American Superconductor Corp. | Sold out | 0.00% | −0.23 |
| BE Bloom Energy Corp. Class A | Reduce -58.8% | 0.18% | −0.22 |
| VST Vistra Corp. | Reduce -76.4% | 0.06% | −0.22 |
| RCL Royal Caribbean Cruises Ltd. | Sold out | 0.00% | −0.22 |
| SRAD Sportradar Group AG-A | Sold out | 0.00% | −0.21 |
| GENI Genius Sports Ltd. | Reduce -83.1% | 0.04% | −0.21 |
| XHB SS SPDR S&P Homebldrs ETF | Sold out | 0.00% | −0.18 |
| PRCH Porch Group Inc. | Sold out | 0.00% | −0.18 |
| FAST Fastenal Co. | Reduce -94.7% | 0.01% | −0.17 |
| AGCO Agco Corp. | Sold out | 0.00% | −0.17 |
| VRNS Varonis Systems Inc. | Sold out | 0.00% | −0.17 |
| VC Visteon Corp. | Sold out | 0.00% | −0.16 |
| RSI Rush Street Interactive Inc. | Sold out | 0.00% | −0.16 |
| ARLO Arlo Technologies Inc. | Reduce -72.4% | 0.05% | −0.16 |
| KFY Korn Ferry | Sold out | 0.00% | −0.15 |
| ITRI Itron Inc. | Sold out | 0.00% | −0.15 |
| ALAB Astera Labs Inc. | Sold out | 0.00% | −0.14 |
| TGTX TG Therapeutics Inc. | Sold out | 0.00% | −0.14 |
| TEX Terex Corp. | Sold out | 0.00% | −0.14 |
| ALK Alaska Air Group Inc. | Sold out | 0.00% | −0.14 |
| IONQ Ionq Inc. | Reduce -57.8% | 0.06% | −0.13 |
| WING Wingstop Inc. | Sold out | 0.00% | −0.13 |
| KTOS Kratos Defense & Security | Reduce -15.5% | 0.34% | −0.12 |
| AAP Advance Auto Parts Inc. | Sold out | 0.00% | −0.12 |
| SAN Banco Santander SA-Spon ADR | Sold out | 0.00% | −0.12 |
| MGNI Magnite Inc. | Sold out | 0.00% | −0.12 |
| R Ryder System Inc. | Sold out | 0.00% | −0.11 |
| STRL Sterling Infrastructure Inc. | Reduce -32.1% | 0.20% | −0.11 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -34.7% | 0.32% | −0.11 |
| KNF Knife River Corp. | Sold out | 0.00% | −0.11 |
| ALGM Allegro Microsystems Inc. | Sold out | 0.00% | −0.11 |
| RIOT Riot Platforms Inc. | Sold out | 0.00% | −0.10 |
| IAI iShares U.S. Broker-Dealers | Sold out | 0.00% | −0.10 |
| AAOI Applied Optoelectronics Inc. | Sold out | 0.00% | −0.09 |
| SLAB Silicon Laboratories Inc. | Reduce -52.4% | 0.09% | −0.09 |
Portfolio Buys Q3 2025 → Q4 2025
| LLY Eli Lilly & Co. | Add +83.1% | 2.57% | +1.62 |
| GOOGL Alphabet Inc. Class A | Add +2.1% | 3.51% | +0.96 |
| ULTA Ulta Beauty Inc. | New | 0.89% | +0.89 |
| AMZN Amazon.com Inc. | Add +20.9% | 3.20% | +0.79 |
| AMD Advanced Micro Devices | New | 0.66% | +0.66 |
| GILD Gilead Sciences Inc. | Add +96.6% | 1.00% | +0.56 |
| BKNG Booking Holdings Inc. | Add +165.6% | 0.86% | +0.55 |
| TPR Tapestry Inc. | New | 0.53% | +0.53 |
| NVDA Nvidia Corp. | Add +2.2% | 7.71% | +0.50 |
| ODFL Old Dominion Freight Line | New | 0.44% | +0.44 |
| AAPL Apple Inc. | Add +1.9% | 3.09% | +0.38 |
| TSLA Tesla Inc. | Add +903.6% | 0.37% | +0.34 |
| BA The Boeing Co. | Add +1334.4% | 0.31% | +0.29 |
| FCFS Firstcash Holdings Inc. | New | 0.29% | +0.29 |
| ARQT Arcutis Biotherapeutics Inc. | New | 0.26% | +0.26 |
| GTX Garrett Motion Inc. | New | 0.26% | +0.26 |
| DOCN Digitalocean Holdings Inc. | New | 0.26% | +0.26 |
| XLV SS Health Care Select Sector | New | 0.26% | +0.26 |
| MIR Mirion Technologies Inc. | New | 0.24% | +0.24 |
| PODD Insulet Corp. | Add +60.3% | 0.68% | +0.24 |
| AR Antero Resources Corp. | New | 0.24% | +0.24 |
| GM General Motors Co. | New | 0.24% | +0.24 |
| SHOP Shopify Inc. Class A | Add +2.1% | 1.63% | +0.22 |
| MAR Marriott International Class A | New | 0.22% | +0.22 |
| PTCT PTC Therapeutics Inc. | New | 0.22% | +0.22 |
| GH Guardant Health Inc. | Add +3.1% | 0.49% | +0.21 |
| H Hyatt Hotels Corp. Class A | New | 0.21% | +0.21 |
| KRYS Krystal Biotech Inc. | New | 0.21% | +0.21 |
| PI Impinj Inc. | New | 0.21% | +0.21 |
| DG Dollar General Corp. | New | 0.20% | +0.20 |
| TPC Tutor Perini Corp. | New | 0.20% | +0.20 |
| ONTO Onto Innovation Inc. | New | 0.20% | +0.20 |
| HRI Herc Holdings Inc. | New | 0.20% | +0.20 |
| SLV iShares Silver Trust | New | 0.19% | +0.19 |
| SCHW Schwab (charles) Corp. | Add +1.8% | 1.83% | +0.19 |
| ATEC Alphatec Holdings Inc. | New | 0.18% | +0.18 |
| VIAV Viavi Solutions Inc. | New | 0.18% | +0.18 |
| C Citigroup Inc. | Add +50.7% | 0.40% | +0.18 |
| ASND Ascendis Pharma A/S | Add +55.5% | 0.42% | +0.18 |
| BTSG Brightspring Health Services | New | 0.17% | +0.17 |
| PATK Patrick Industries Inc. | New | 0.17% | +0.17 |
| DAL Delta Air Lines Inc. | Add +13.6% | 0.53% | +0.17 |
| CHDN Churchill Downs Inc. | New | 0.16% | +0.16 |
| V Visa Inc. Class A | Add +2.0% | 1.76% | +0.16 |
| ACA Arcosa Inc. | New | 0.15% | +0.15 |
| IWD iShares Russell 1000 Value E | New | 0.15% | +0.15 |
| F Ford Motor Co. | New | 0.15% | +0.15 |
| CPRI Capri Holdings Ltd. | New | 0.15% | +0.15 |
| XPO Xpo Inc. | Add +155.8% | 0.22% | +0.14 |
| GOVT iShares US Treasury Bond ETF | Add +2.2% | 2.25% | +0.14 |
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 |