CASTLEARK MANAGEMENT LLC
Top Portfolio Positions
262 positions ·
$2,584,233,245 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| NVDA |
Nvidia Corp
Technology
|
1,258,012 | $219,397,292 | 8.49% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
418,019 | $120,205,543 | 4.65% | |
| MSFT |
Microsoft Corp
Technology
|
264,102 | $97,762,637 | 3.78% | |
| AAPL |
Apple Inc.
Technology
|
350,011 | $88,829,291 | 3.44% | |
| LRCX |
Lam Research Corp
Technology
|
336,740 | $71,947,868 | 2.78% | |
| META |
Meta Platforms, Inc.
Communication Services
|
123,965 | $70,924,095 | 2.74% | |
| LLY |
ELI LILLY & Co
Healthcare
|
73,478 | $67,582,860 | 2.62% | |
| AVGO |
Broadcom Inc.
Technology
|
202,704 | $62,738,915 | 2.43% | |
| ANET |
Arista Networks, Inc.
Technology
|
430,935 | $52,910,199 | 2.05% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
245,861 | $51,205,470 | 1.98% |
Portfolio Trend
Holdings in LBRT
Shares Held
Position Value (USD)
14 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $7,625,923 | 264,789 | Shares | Sole | 2026-05-15 | |
| 2024-09-30 | $1,498,374 | 78,490 | Shares | Sole | 2024-11-15 | |
| 2024-06-30 | $1,639,656 | 78,490 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,626,312 | 78,490 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $1,423,808 | 78,490 | Shares | Sole | 2024-02-15 | |
| 2023-09-30 | $1,453,634 | 78,490 | Shares | Sole | 2023-11-15 | |
| 2023-06-30 | $777,198 | 58,130 | Shares | Sole | 2023-08-16 | |
| 2023-03-31 | $379,047 | 29,590 | Shares | Sole | 2023-05-16 | |
| 2022-12-31 | $473,735 | 29,590 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $375,201 | 29,590 | Shares | Sole | 2022-11-15 | |
| 2022-06-30 | $471,992 | 36,990 | Shares | Sole | 2022-08-16 | |
| 2022-03-31 | $548,191 | 36,990 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $358,803 | 36,990 | Shares | Sole | 2022-02-16 | |
| 2021-09-30 | $2,062,100 | 170,000 | Shares | Sole | 2021-11-12 | |
| No 13F history on record for this holder in this stock. | ||||||