# CASTLEARK MANAGEMENT LLC

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 1106832. Source: https://holderbook.com/funds/1106832-castleark-management-llc/

- Reported value: $3.7B
- Positions: 309
- Weight of the ten largest: 33.9%
- Filed: 2026-08-14

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| NVIDIA CORPORATION | [NVDA](https://holderbook.com/stocks/NVDA/) | $260.0M | 1,299,605 | 7.0% | 26 |
| ALPHABET INC | [GOOGL](https://holderbook.com/stocks/GOOGL/) | $181.2M | 507,093 | 4.9% | 31 |
| APPLE INC | [AAPL](https://holderbook.com/stocks/AAPL/) | $136.6M | 472,108 | 3.7% | 31 |
| LAM RESEARCH CORP | [LRCX](https://holderbook.com/stocks/LRCX/) | $123.0M | 283,808 | 3.3% | 7 |
| MICROSOFT CORP | [MSFT](https://holderbook.com/stocks/MSFT/) | $109.2M | 292,770 | 2.9% | 31 |
| ELI LILLY & CO | [LLY](https://holderbook.com/stocks/LLY/) | $105.2M | 87,697 | 2.8% | 24 |
| BROADCOM INC | [AVGO](https://holderbook.com/stocks/AVGO/) | $92.1M | 243,896 | 2.5% | 4 |
| SPDR SERIES TRUST | [SPIB](https://holderbook.com/stocks/SPIB/) | $90.0M | 2,688,380 | 2.4% | 7 |
| VISA INC | [V](https://holderbook.com/stocks/V/) | $81.0M | 236,166 | 2.2% | 31 |
| ARISTA NETWORKS INC | [ANET](https://holderbook.com/stocks/ANET/) | $80.4M | 473,319 | 2.2% | 7 |
| ISHARES TR | [GOVT](https://holderbook.com/stocks/GOVT/) | $75.8M | 3,329,569 | 2.0% | 7 |
| VANGUARD SCOTTSDALE FDS | [VMBS](https://holderbook.com/stocks/VMBS/) | $69.6M | 1,487,800 | 1.9% | 7 |
| ADVANCED MICRO DEVICES INC | [AMD](https://holderbook.com/stocks/AMD/) | $69.0M | 118,865 | 1.9% | 3 |
| GILEAD SCIENCES INC | [GILD](https://holderbook.com/stocks/GILD/) | $66.6M | 527,542 | 1.8% | 31 |
| AMAZON COM INC | [AMZN](https://holderbook.com/stocks/AMZN/) | $63.9M | 268,249 | 1.7% | 31 |
| GE VERNOVA INC | [GEV](https://holderbook.com/stocks/GEV/) | $54.2M | 46,101 | 1.5% | 5 |
| META PLATFORMS INC | [META](https://holderbook.com/stocks/META/) | $52.8M | 93,744 | 1.4% | 31 |
| ANALOG DEVICES INC | [ADI](https://holderbook.com/stocks/ADI/) | $48.0M | 120,934 | 1.3% | 4 |
| MASTERCARD INCORPORATED | [MA](https://holderbook.com/stocks/MA/) | $47.0M | 91,462 | 1.3% | 26 |
| MORGAN STANLEY | [MS](https://holderbook.com/stocks/MS/) | $43.6M | 208,542 | 1.2% | 8 |
| SNOWFLAKE INC | [SNOW](https://holderbook.com/stocks/SNOW/) | $42.5M | 166,818 | 1.1% | 5 |
| VERTIV HOLDINGS CO | [VRT](https://holderbook.com/stocks/VRT/) | $41.5M | 123,901 | 1.1% | 4 |
| TAPESTRY INC | [TPR](https://holderbook.com/stocks/TPR/) | $38.9M | 265,749 | 1.0% | 3 |
| SPDR SERIES TRUST | [SPTS](https://holderbook.com/stocks/SPTS/) | $38.7M | 1,334,080 | 1.0% | 7 |
| VANGUARD SCOTTSDALE FDS | [VCLT](https://holderbook.com/stocks/VCLT/) | $33.7M | 448,330 | 0.9% | 5 |
| SERVICENOW INC | [NOW](https://holderbook.com/stocks/NOW/) | $31.9M | 321,623 | 0.9% | 16 |
| ISHARES TR | [TLH](https://holderbook.com/stocks/TLH/) | $25.9M | 258,432 | 0.7% | 7 |
| BOOKING HOLDINGS INC | [BKNG](https://holderbook.com/stocks/BKNG/) | $24.4M | 136,776 | 0.7% | 5 |
| MOODYS CORP | [MCO](https://holderbook.com/stocks/MCO/) | $24.2M | 53,444 | 0.7% | 2 |
| TESLA INC | [TSLA](https://holderbook.com/stocks/TSLA/) | $20.2M | 48,070 | 0.5% | 31 |
| CATERPILLAR INC | [CAT](https://holderbook.com/stocks/CAT/) | $20.2M | 18,980 | 0.5% | 4 |
| GE AEROSPACE | [GE](https://holderbook.com/stocks/GE/) | $19.7M | 52,830 | 0.5% | 6 |
| TAIWAN SEMICONDUCTOR MANUFAC | [TSM](https://holderbook.com/stocks/TSM/) | $19.7M | 41,210 | 0.5% | 31 |
| LIGAND PHARMACEUTICALS INC | [LGND](https://holderbook.com/stocks/LGND/) | $19.6M | 62,043 | 0.5% | 4 |
| SHARKNINJA INC | [SN](https://holderbook.com/stocks/SN/) | $19.4M | 127,170 | 0.5% | 1 |
| ISHARES TR | [MBB](https://holderbook.com/stocks/MBB/) | $19.3M | 204,235 | 0.5% | 7 |
| TWILIO INC | [TWLO](https://holderbook.com/stocks/TWLO/) | $19.1M | 92,390 | 0.5% | 2 |
| BAKER HUGHES COMPANY | [BKR](https://holderbook.com/stocks/BKR/) | $18.3M | 330,020 | 0.5% | 7 |
| GARRETT MOTION INC | [GTX](https://holderbook.com/stocks/GTX/) | $17.0M | 469,470 | 0.5% | 3 |
| JPMORGAN CHASE & CO | [JPM](https://holderbook.com/stocks/JPM/) | $16.5M | 50,525 | 0.4% | 13 |
| ASCENDIS PHARMA A/S | [ASND](https://holderbook.com/stocks/ASND/) | $16.5M | 61,696 | 0.4% | 1 |
| HUNT J B TRANS SVCS INC | [JBHT](https://holderbook.com/stocks/JBHT/) | $16.4M | 56,520 | 0.4% | 31 |
| DIAMONDBACK ENERGY INC | [FANG](https://holderbook.com/stocks/FANG/) | $15.9M | 90,680 | 0.4% | 2 |
| GENERAL MTRS CO | [GM](https://holderbook.com/stocks/GM/) | $15.4M | 199,440 | 0.4% | 3 |
| BRIGHTSPRING HEALTH SVCS INC | [BTSG](https://holderbook.com/stocks/BTSG/) | $14.8M | 212,430 | 0.4% | 3 |
| SEMTECH CORP | [SMTC](https://holderbook.com/stocks/SMTC/) | $14.8M | 91,218 | 0.4% | 4 |
| FIRSTCASH HOLDINGS INC | [FCFS](https://holderbook.com/stocks/FCFS/) | $14.8M | 68,190 | 0.4% | 3 |
| MARRIOTT INTL INC NEW | [MAR](https://holderbook.com/stocks/MAR/) | $14.0M | 37,910 | 0.4% | 3 |
| ISHARES TR | [IGIB](https://holderbook.com/stocks/IGIB/) | $13.8M | 259,994 | 0.4% | 7 |
| TJX COS INC NEW | [TJX](https://holderbook.com/stocks/TJX/) | $13.7M | 90,620 | 0.4% | 31 |
| UBER TECHNOLOGIES INC | [UBER](https://holderbook.com/stocks/UBER/) | $13.7M | 189,417 | 0.4% | 5 |
| ULTRA CLEAN HLDGS INC | [UCTT](https://holderbook.com/stocks/UCTT/) | $13.7M | 95,770 | 0.4% | 2 |
| NOVANTA INC | [NOVT](https://holderbook.com/stocks/NOVT/) | $13.5M | 83,190 | 0.4% | 2 |
| AXON ENTERPRISE INC | [AXON](https://holderbook.com/stocks/AXON/) | $13.1M | 23,423 | 0.4% | 16 |
| BOEING CO | [BA](https://holderbook.com/stocks/BA/) | $12.9M | 59,520 | 0.3% | 31 |
| SPDR SERIES TRUST | [XBI](https://holderbook.com/stocks/XBI/) | $12.8M | 80,890 | 0.3% | 4 |
| ELEMENT SOLUTIONS INC | [ESI](https://holderbook.com/stocks/ESI/) | $12.6M | 263,644 | 0.3% | 12 |
| MYR GROUP INC | [MYRG](https://holderbook.com/stocks/MYRG/) | $12.5M | 24,920 | 0.3% | 2 |
| GUARDANT HEALTH INC | [GH](https://holderbook.com/stocks/GH/) | $12.0M | 80,293 | 0.3% | 5 |
| ISHARES TR | [TLT](https://holderbook.com/stocks/TLT/) | $11.9M | 137,270 | 0.3% | 7 |
| JFROG LTD | [FROG](https://holderbook.com/stocks/FROG/) | $11.8M | 129,480 | 0.3% | 2 |
| CITIGROUP INC | [C](https://holderbook.com/stocks/C/) | $11.7M | 83,734 | 0.3% | 31 |
| XPO INC | [XPO](https://holderbook.com/stocks/XPO/) | $11.7M | 57,079 | 0.3% | 13 |
| KULICKE & SOFFA INDS INC | [KLIC](https://holderbook.com/stocks/KLIC/) | $11.6M | 86,950 | 0.3% | 2 |
| HEALTHEQUITY INC | [HQY](https://holderbook.com/stocks/HQY/) | $11.5M | 127,770 | 0.3% | 2 |
| XOMETRY INC | [XMTR](https://holderbook.com/stocks/XMTR/) | $11.3M | 117,518 | 0.3% | 5 |
| LATTICE SEMICONDUCTOR CORP | [LSCC](https://holderbook.com/stocks/LSCC/) | $11.3M | 73,979 | 0.3% | 6 |
| JAZZ PHARMACEUTICALS PLC | [JAZZ](https://holderbook.com/stocks/JAZZ/) | $11.3M | 46,920 | 0.3% | 2 |
| HELIOS TECHNOLOGIES INC | [HLIO](https://holderbook.com/stocks/HLIO/) | $11.2M | 125,409 | 0.3% | 4 |
| KINIKSA PHARMACEUTICALS INTL | [KNSA](https://holderbook.com/stocks/KNSA/) | $11.1M | 174,032 | 0.3% | 4 |
| ESCO TECHNOLOGIES INC | [ESE](https://holderbook.com/stocks/ESE/) | $11.1M | 31,572 | 0.3% | 5 |
| VSE CORP | [VSEC](https://holderbook.com/stocks/VSEC/) | $11.0M | 48,216 | 0.3% | 7 |
| TIMKEN CO | [TKR](https://holderbook.com/stocks/TKR/) | $11.0M | 75,400 | 0.3% | 2 |
| HEXCEL CORP NEW | [HXL](https://holderbook.com/stocks/HXL/) | $10.6M | 106,050 | 0.3% | 1 |
| BORGWARNER INC | [BWA](https://holderbook.com/stocks/BWA/) | $10.5M | 158,726 | 0.3% | 5 |
| AAR CORP | [AIR](https://holderbook.com/stocks/AIR/) | $10.5M | 73,664 | 0.3% | 4 |
| WALMART INC | [WMT](https://holderbook.com/stocks/WMT/) | $10.4M | 91,570 | 0.3% | 6 |
| CROCS INC | [CROX](https://holderbook.com/stocks/CROX/) | $10.4M | 85,810 | 0.3% | 1 |
| EQT CORP | [EQT](https://holderbook.com/stocks/EQT/) | $10.3M | 193,845 | 0.3% | 12 |
| SENSIENT TECHNOLOGIES CORP | [SXT](https://holderbook.com/stocks/SXT/) | $10.2M | 82,920 | 0.3% | 1 |
| MAXLINEAR INC | [MXL](https://holderbook.com/stocks/MXL/) | $10.2M | 79,780 | 0.3% | 1 |
| SOLARIS ENERGY INFRAS INC | [SEI](https://holderbook.com/stocks/SEI/) | $10.1M | 125,806 | 0.3% | 7 |
| EVERCORE INC | [EVR](https://holderbook.com/stocks/EVR/) | $10.0M | 29,266 | 0.3% | 12 |
| SHOPIFY INC | [SHOP](https://holderbook.com/stocks/SHOP/) | $10.0M | 87,164 | 0.3% | 7 |
| ALLEGRO MICROSYSTEMS INC | [ALGM](https://holderbook.com/stocks/ALGM/) | $9.9M | 141,900 | 0.3% | 2 |
| UL SOLUTIONS INC | [ULS](https://holderbook.com/stocks/ULS/) | $9.9M | 96,780 | 0.3% | 1 |
| WILLIAMS COS INC | [WMB](https://holderbook.com/stocks/WMB/) | $9.8M | 131,770 | 0.3% | 26 |
| CASELLA WASTE SYS INC | [CWST](https://holderbook.com/stocks/CWST/) | $9.7M | 100,460 | 0.3% | 1 |
| CARDINAL INFRASTRUCTURE GROU | [CDNL](https://holderbook.com/stocks/CDNL/) | $9.7M | 103,023 | 0.3% | 1 |
| SOLSTICE ADVANCED MATLS INC | [SOLS](https://holderbook.com/stocks/SOLS/) | $9.7M | 108,980 | 0.3% | 2 |
| DYCOM INDS INC | [DY](https://holderbook.com/stocks/DY/) | $9.5M | 18,816 | 0.3% | 4 |
| RALLIANT CORP | [RAL](https://holderbook.com/stocks/RAL/) | $9.5M | 128,740 | 0.3% | 1 |
| WESCO INTL INC | [WCC](https://holderbook.com/stocks/WCC/) | $9.4M | 27,347 | 0.3% | 7 |
| WILLSCOT HLDGS CORP | [WSC](https://holderbook.com/stocks/WSC/) | $9.4M | 325,950 | 0.3% | 1 |
| KNIGHT-SWIFT TRANSN HLDGS IN | [KNX](https://holderbook.com/stocks/KNX/) | $9.4M | 120,560 | 0.3% | 2 |
| LIFE TIME GROUP HOLDINGS INC | [LTH](https://holderbook.com/stocks/LTH/) | $9.4M | 229,298 | 0.3% | 1 |
| COGNEX CORP | [CGNX](https://holderbook.com/stocks/CGNX/) | $9.3M | 128,730 | 0.3% | 2 |
| AMERICAN EXPRESS CO | [AXP](https://holderbook.com/stocks/AXP/) | $9.2M | 27,295 | 0.2% | 31 |
| ASSOCIATED BANC CORP | [ASB](https://holderbook.com/stocks/ASB/) | $9.2M | 299,403 | 0.2% | 7 |
| BROOKDALE SR LIVING INC | [BKD](https://holderbook.com/stocks/BKD/) | $9.2M | 570,084 | 0.2% | 2 |

## What the disclosed book did

Not the fund's return. This is the change in value of the positions disclosed on Form 13F, had they been left untouched, against SPY over the same quarter ends.

| Quarter | Book | Market | Difference | Priced |
|---|---|---|---|---|
| Q2 2026 | +17.5% | +14.8% | +2.7% | 100% |
| Q1 2026 | -4.1% | -4.6% | +0.6% | 100% |
| Q4 2025 | +0.8% | +2.4% | -1.6% | 91% |
| Q3 2025 | +6.9% | +7.8% | -0.9% | 90% |
| Q2 2025 | +13.1% | +10.5% | +2.6% | 90% |
| Q1 2025 | -9.1% | -4.6% | -4.5% | 100% |
| Q4 2024 | +1.8% | +2.1% | -0.4% | 100% |
| Q3 2024 | +2.1% | +5.4% | -3.3% | 100% |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $3.7B | 309 |
| Q1 2026 | $3.0B | 292 |
| Q4 2025 | $3.4B | 294 |
| Q3 2025 | $3.6B | 284 |
| Q2 2025 | $3.3B | 275 |
| Q1 2025 | $2.9B | 280 |
| Q4 2024 | $2.9B | 283 |
| Q3 2024 | $2.5B | 272 |
| Q2 2024 | $2.4B | 271 |
| Q1 2024 | $2.4B | 278 |
| Q4 2023 | $2.3B | 281 |
| Q3 2023 | $2.0B | 274 |