CASTLEARK MANAGEMENT LLC
CIK: 0001106832Latest portfolio: $3.4B · Q4 2025
Holdings
294
Total Value
$3.4B
New Positions
63
Closed Positions
53
Top Holdings
View All 294 Holdings →| # | Stock | Shares | Value | % Portfolio | Change | Type |
|---|---|---|---|---|---|---|
| 1 | NVDANVIDIA CORPORATION | 1,408,146 | $262.0M | 7.69% | +31K | |
| 2 | MSFTMICROSOFT CORP | 369,460 | $178.0M | 5.23% | +8K | |
| 3 | GOOGLALPHABET INC | 381,639 | $119.0M | 3.49% | +8K | |
| 4 | AMZNAMAZON COM INC | 472,149 | $108.0M | 3.17% | +82K | |
| 5 | AAPLAPPLE INC | 387,041 | $105.0M | 3.08% | +7K | |
| 6 | LLYELI LILLY & CO | 81,578 | $87.0M | 2.55% | +37K | |
| 7 | SPIBSPDR SERIES TRUST | 2,519,370 | $85.0M | 2.50% | — | |
| 8 | VMBSVANGUARD SCOTTSDALE FDS | 1,705,540 | $80.0M | 2.35% | — | |
| 9 | METAMETA PLATFORMS INC | 122,415 | $80.0M | 2.35% | -24,960 | |
| 10 | AQLTISHARES TR | 3,329,569 | $76.0M | 2.23% | +71K | |
| 11 | AVGOBROADCOM INC | 205,880 | $71.0M | 2.08% | -6 | |
| 12 | LRCXLAM RESEARCH CORP | 372,876 | $63.0M | 1.85% | -131,244 | |
| 13 | SCHWSCHWAB CHARLES CORP | 622,535 | $62.0M | 1.82% | +11K | |
| 14 | VVISA INC | 170,478 | $59.0M | 1.73% | +3K | |
| 15 | MAMASTERCARD INCORPORATED | 102,451 | $58.0M | 1.70% | +2K | |
| 16 | SHOPSHOPIFY INC | 345,382 | $55.0M | 1.61% | +7K | |
| 17 | ANETARISTA NETWORKS INC | 411,277 | $53.0M | 1.56% | +9K | |
| 18 | NOWSERVICENOW INC | 270,420 | $41.0M | 1.20% | +217K | |
| 19 | SPTSSPDR SERIES TRUST | 1,334,080 | $39.0M | 1.15% | — | |
| 20 | BXBLACKSTONE INC | 244,268 | $37.0M | 1.09% | +5K | |
| 21 | GILDGILEAD SCIENCES INC | 277,328 | $34.0M | 1.00% | +136K | |
| 22 | EFAISHARES TR | 347,580 | $33.0M | 0.97% | — | |
| 23 | SNOWSNOWFLAKE INC | 151,192 | $33.0M | 0.97% | +3K | |
| 24 | MCHPMICROCHIP TECHNOLOGY INC. | 515,494 | $32.0M | 0.94% | +43K | |
| 25 | GEVGE VERNOVA INC | 47,741 | $31.0M | 0.91% | +1K |
Quarterly Changes
New Positions
Increased Positions
Sector Breakdown
Industrials0.0% ($2.000018000180002e+190T)
Technology0.0% ($2.6200017800010498e+181T)
Financial Services0.0% ($8.500080000620007e+158T)
Energy0.0% ($1.1000800080007002e+107T)
Consumer Cyclical0.0% ($1.0800030000290001e+105T)
Healthcare0.0% ($8.700034000230001e+102T)
Unknown0.0% ($7.60001400013001e+49T)
Communication Services0.0% ($1190008000019000576.0T)
Consumer Defensive0.0% ($120007000600060000.0T)
Utilities0.0% ($3100050003.0T)
Basic Materials0.0% ($100.0M)
Real Estate0.0% ($3.0M)
Filing History
| Quarter | Filing Date | Portfolio Value | Holdings |
|---|---|---|---|
| Q4 2025 | Feb 13, 2026 | $3.4B | 294 |
| Q3 2025 | Nov 17, 2025 | $3.6T | 284 |
| Q2 2025 | Aug 18, 2025 | $3.3T | 275 |
| Q1 2025 | May 15, 2025 | $2.9T | 280 |
| Q4 2024 | Feb 18, 2025 | $2.9T | 283 |
| Q3 2024 | Nov 15, 2024 | $2453.2T | 272 |
| Q2 2024 | Aug 14, 2024 | $2448.2T | 271 |
| Q1 2024 | May 16, 2024 | $2403.8T | 278 |
| Q4 2023 | Feb 15, 2024 | $2256.1T | 281 |
| Q3 2023 | Nov 15, 2023 | $1962.6T | 274 |
| Q2 2023 | Aug 16, 2023 | $2207.8T | 274 |
| Q1 2023 | May 16, 2023 | $2035.7T | 272 |
| Q4 2022 | Feb 10, 2023 | $1914.4T | 282 |
| Q3 2022 | Nov 15, 2022 | $1.8T | 284 |
| Q2 2022 | Aug 16, 2022 | $1.9T | 306 |
| Q1 2022 | May 16, 2022 | $2.3T | 321 |
| Q4 2021 | Feb 16, 2022 | $2.7T | 326 |
| Q3 2021 | Nov 12, 2021 | $2.6T | 328 |
| Q2 2021 | Aug 17, 2021 | $3.0T | 335 |
| Q1 2021 | May 14, 2021 | $2.8T | 330 |
| Q4 2020 | Feb 17, 2021 | $2.7T | 328 |
| Q3 2020 | Nov 16, 2020 | $2.6T | 343 |
| Q2 2020 | Aug 14, 2020 | $2.3T | 334 |
| Q1 2020 | May 13, 2020 | $1.7T | 336 |
| Q4 2019 | Feb 14, 2020 | $2.5T | 341 |
| Q3 2019 | Nov 15, 2019 | $2.5T | 350 |
| Q2 2019 | Aug 13, 2019 | $2.6T | 347 |
| Q1 2019 | May 14, 2019 | $2.7T | 360 |
| Q4 2018 | Feb 12, 2019 | $2.3T | 365 |
| Q3 2018 | Nov 15, 2018 | $3.5T | 369 |
| Q2 2018 | Aug 15, 2018 | $3.2T | 369 |
| Q1 2018 | May 15, 2018 | $3.2T | 403 |
| Q4 2017 | Feb 15, 2018 | $3.3T | 402 |
| Q3 2017 | Nov 15, 2017 | $3.2T | 385 |
| Q2 2017 | Aug 15, 2017 | $3.1T | 389 |
| Q1 2017 | May 15, 2017 | $3.2T | 367 |
| Q4 2016 | Feb 15, 2017 | $3.1T | 371 |
| Q3 2016 | Nov 15, 2016 | $3.3T | 372 |
| Q2 2016 | Aug 10, 2016 | $3.1T | 373 |
| Q1 2016 | May 17, 2016 | $3.2T | 367 |
Fund Information
CASTLEARK MANAGEMENT LLC is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $3.4B across 294 holdings. The largest position is NVIDIA CORPORATION (NVDA), representing 7.7% of the portfolio. Compared to the previous quarter, the fund opened 63 new positions and closed 53 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.