Ownership history in CASTLEARK MANAGEMENT LLC · 69 quarters on record
This page tracks every 13F SEC filing in which CASTLEARK MANAGEMENT LLC reported a position in AMAZON COM INC COM (AMZN). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | ADDED | 472,149 | +81,542 | +20.9% | 3.20% | $109.0M | $230.82 |
| 2025 Q3 | REDUCED | 390,607 | -208,000 | -34.7% | 2.40% | $85.8M | $219.57 |
| 2025 Q2 | ADDED | 598,607 | +28,076 | +4.9% | 3.95% | $131.3M | $219.39 |
| 2025 Q1 | ADDED | 570,531 | +10,336 | +1.8% | 3.76% | $108.5M | $190.26 |
| 2024 Q4 | ADDED | 560,195 | +9,940 | +1.8% | 4.29% | $122.9M | $219.39 |
| 2024 Q3 | REDUCED | 550,255 | -13,342 | -2.4% | 4.18% | $102.5M | $186.33 |
| 2024 Q2 | ADDED | 563,597 | +57,924 | +11.5% | 4.45% | $108.9M | $193.25 |
| 2024 Q1 | REDUCED | 505,673 | -27,112 | -5.1% | 3.79% | $91.2M | $180.38 |
| 2023 Q4 | ADDED | 532,785 | +89,935 | +20.3% | 3.59% | $81.0M | $151.94 |
| 2023 Q3 | ADDED | 442,850 | +58,150 | +15.1% | 2.87% | $56.3M | $127.12 |
As of 2025 Q4 — sorted by position size