Birchview Capital, LP
- SEC CIK
- 0001618205
- Latest filing
- Aug 14, 2026
CSTL holding history
Castle Biosciences Inc in every 13F filed by Birchview Capital, LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
CSTL overviewAll 13F holders of CSTLFull Q2 2026 holdings
- Shares (Q2 2026)
- 12,984
- Value
- $309.7K
- % of portfolio
- 0.1%
- Quarters held
- 11
- Since Q4 2023
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 12,984 | $309.7K | 0.1% | +84+0.7% | Added | Holders |
| Q1 2026 | 12,900 | $316.7K | 0.2% | −67,700−84.0% | Reduced | Holders |
| Q4 2025 | 80,600 | $3.14M | 1.8% | −30,000−27.1% | Reduced | Holders |
| Q3 2025 | 110,600 | $2.52M | 1.9% | 00.0% | Unchanged | Holders |
| Q2 2025 | 110,600 | $2.26M | 2.2% | +22,196+25.1% | Added | Holders |
| Q1 2025 | 88,404 | $1.77M | 1.5% | +10,404+13.3% | Added | Holders |
| Q4 2024 | 78,000 | $2.08M | 1.7% | +20,000+34.5% | Added | Holders |
| Q3 2024 | 58,000 | $1.65M | 1.4% | +24,000+70.6% | Added | Holders |
| Q2 2024 | 34,000 | $740.2K | 0.7% | +20,000+142.9% | Added | Holders |
| Q1 2024 | 14,000 | $310.1K | 0.3% | +4,000+40.0% | Added | Holders |
| Q4 2023 | 10,000 | $215.8K | 0.2% | +10,000 | New | Holders |