Castleark Management LLC reported 278 positions worth $3.28B for the quarter ended Jun 30, 2026, up 26.3% on the prior quarter. It opened 55 new positions, added to 66, trimmed 87 and exited 40. Its largest holding is Nvidia Corp at 7.9% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MS Morgan Stanley | +184.9K | +780.7% | $38.64M | 1.33% |
| AAPL Apple Inc. | +122.1K | +34.9% | $35.33M | 4.17% |
| GOOGL Alphabet Inc. | +89.1K | +21.3% | $31.83M | 5.53% |
| V Visa Inc. | +82.3K | +53.5% | $28.25M | 2.47% |
| GILD Gilead Sciences, Inc. | +185.4K | +54.2% | $23.42M | 2.03% |
| SN SharkNinja, Inc. | +127.2K | – | $19.36M | 0.591% |
| AMD Advanced Micro Devices Inc | +29.9K | +33.6% | $17.38M | 2.11% |
| ADI Analog Devices Inc | +43.0K | +55.2% | $17.09M | 1.47% |
| LLY ELI LILLY & Co | +14.2K | +19.4% | $17.05M | 3.21% |
| MCO Moodys Corp | +36.5K | +216.2% | $16.55M | 0.739% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| SCHW Schwab Charles Corp | -494.7K | -98.1% | $45.65M | 0.026% |
| ULTA Ulta Beauty, Inc. | -50.6K | -100.0% | $26.46M | Exited |
| SHOP Shopify Inc. | -223.4K | -71.9% | $25.51M | 0.304% |
| DOCN DigitalOcean Holdings, Inc. | -146.7K | -80.5% | $23.04M | 0.17% |
| LRCX Lam Research Corp | -52.9K | -15.7% | $22.94M | 3.75% |
| CVX Chevron Corp | -124.7K | -91.3% | $20.67M | 0.06% |
| VIAV Viavi Solutions Inc. | -358.6K | -94.7% | $17.12M | 0.029% |
| META Meta Platforms, Inc. | -30.2K | -24.4% | $17.02M | 1.61% |
| BE Bloom Energy Corp | -53.6K | -97.3% | $16.22M | 0.013% |
| STRL Sterling Infrastructure, Inc. | -18.6K | -87.7% | $15.60M | 0.067% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| SN SharkNinja, Inc. | +127.2K | $19.36M | 0.591% |
| HXL Hexcel Corp | +106.1K | $10.61M | 0.324% |
| CROX Crocs, Inc. | +85.8K | $10.35M | 0.316% |
| SXT Sensient Technologies Corp | +82.9K | $10.22M | 0.312% |
| MXL Maxlinear, Inc | +79.8K | $10.21M | 0.312% |
| ULS UL Solutions Inc. | +96.8K | $9.86M | 0.301% |
| CWST Casella Waste Systems Inc | +100.5K | $9.74M | 0.297% |
| CDNL Cardinal Infrastructure Group Inc. | +103.0K | $9.70M | 0.296% |
| RAL Ralliant Corp | +128.7K | $9.48M | 0.289% |
| WSC WillScot Holdings Corp | +326.0K | $9.41M | 0.287% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| ULTA Ulta Beauty, Inc. | -50.6K | $26.46M | 1.02% |
| FIVE Five Below, Inc | -40.1K | $9.16M | 0.353% |
| TPC Tutor Perini Corp | -116.4K | $8.99M | 0.347% |
| HAS Hasbro, Inc. | -94.7K | $8.86M | 0.342% |
| SPXC SPX Technologies, Inc. | -41.6K | $8.31M | 0.32% |
| PAHC Phibro Animal Health Corp | -142.9K | $7.90M | 0.305% |
| KTOS Kratos Defense & Security Solutions, Inc. | -109.6K | $7.73M | 0.298% |
| ADSK Autodesk, Inc. | -31.9K | $7.65M | 0.295% |
| IPGP Ipg Photonics Corp | -60.5K | $6.93M | 0.267% |
| PATK Patrick Industries Inc | -62.2K | $6.91M | 0.266% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | NVDA Nvidia Corp | Technology | 1.30M | $260.04M | 7.94% | +41.6K | +3.3% | Added | 0.01% |
| 2 | GOOGL Alphabet Inc. | Technology | 507.1K | $181.22M | 5.53% | +89.1K | +21.3% | Added | 0.01% |
| 3 | AAPL Apple Inc. | Technology | 472.1K | $136.61M | 4.17% | +122.1K | +34.9% | Added | 0% |
| 4 | LRCX Lam Research Corp | Technology | 283.8K | $122.98M | 3.75% | -52.9K | -15.7% | Reduced | 0.02% |
| 5 | MSFT Microsoft Corp | Technology | 292.8K | $109.21M | 3.33% | +28.7K | +10.9% | Added | 0% |
| 6 | LLY ELI LILLY & Co | Healthcare | 87.7K | $105.19M | 3.21% | +14.2K | +19.4% | Added | 0.01% |
| 7 | AVGO Broadcom Inc. | Technology | 243.9K | $92.13M | 2.81% | +41.2K | +20.3% | Added | 0.01% |
| 8 | V Visa Inc. | Financial Services | 236.2K | $81.03M | 2.47% | +82.3K | +53.5% | Added | 0.01% |
| 9 | ANET Arista Networks, Inc. | Technology | 473.3K | $80.41M | 2.45% | +42.4K | +9.8% | Added | 0.04% |
| 10 | AMD Advanced Micro Devices Inc | Technology | 118.9K | $69.05M | 2.11% | +29.9K | +33.6% | Added | 0.01% |
| 11 | GILD Gilead Sciences, Inc. | Healthcare | 527.5K | $66.65M | 2.03% | +185.4K | +54.2% | Added | 0.04% |
| 12 | AMZN Amazon Com Inc | Consumer Discretionary | 268.2K | $63.93M | 1.95% | +22.4K | +9.1% | Added | 0% |
| 13 | GEV GE Vernova Inc. | Industrials | 46.1K | $54.16M | 1.65% | +4,612 | +11.1% | Added | 0.02% |
| 14 | META Meta Platforms, Inc. | Technology | 93.7K | $52.81M | 1.61% | -30.2K | -24.4% | Reduced | 0% |
| 15 | ADI Analog Devices Inc | Technology | 120.9K | $48.03M | 1.47% | +43.0K | +55.2% | Added | 0.02% |
Tip. Select a row to see that position’s full history at Castleark Management.
As of its Q2 2026 13F filing, Castleark Management LLC’s five largest positions were Nvidia Corp (NVDA) at 7.9%, Alphabet Inc. (GOOGL) at 5.5%, Apple Inc. (AAPL) at 4.2%, Lam Research Corp (LRCX) at 3.8%, Microsoft Corp (MSFT) at 3.3% of the reported portfolio.
Castleark Management LLC reported a 13F portfolio worth $3.28B across 278 positions for Q2 2026. That is up 26.3% from the previous quarter.
Its largest purchases by value were Morgan Stanley ($38.64M), Apple Inc. ($35.33M), Alphabet Inc. ($31.83M). It opened 55 new positions.
Its largest sales by value were Schwab Charles Corp ($45.65M), Ulta Beauty, Inc. ($26.46M), Shopify Inc. ($25.51M). It exited 40 positions entirely.
From the Form 13F-HR reports Castleark Management LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.