Ownership history in CASTLEARK MANAGEMENT LLC · 40 quarters on record
This page tracks every 13F SEC filing in which CASTLEARK MANAGEMENT LLC reported a position in DEXCOM INC COM (DXCM). 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 Q3 | REDUCED | 300,249 | -11,093 | -3.6% | 0.57% | $20.2M | $67.29 |
| 2025 Q2 | REDUCED | 311,342 | -126,736 | -28.9% | 0.82% | $27.2M | $87.29 |
| 2024 Q2 | ADDED | 438,078 | +5,680 | +1.3% | 2.03% | $49.7M | $113.38 |
| 2024 Q1 | REDUCED | 432,398 | -5,749 | -1.3% | 2.49% | $60.0M | $138.70 |
| 2023 Q4 | REDUCED | 438,147 | -12,903 | -2.9% | 2.41% | $54.4M | $124.09 |
| 2023 Q3 | REDUCED | 451,050 | -2,230 | -0.5% | 2.14% | $42.1M | $93.30 |
| 2023 Q2 | ADDED | 453,280 | +1,130 | +0.2% | 2.64% | $58.3M | $128.51 |
| 2023 Q1 | ADDED | 452,150 | +50,520 | +12.6% | 2.58% | $52.5M | $116.18 |
| 2022 Q4 | ADDED | 401,630 | +264,590 | +193.1% | 2.38% | $45.5M | $113.24 |
| 2022 Q3 | REDUCED | 137,040 | -54,700 | -28.5% | 0.61% | $11.0M | $80.54 |
As of 2025 Q4 — sorted by position size