CASTLE BIOSCIENCES INC's ticker is CSTL and the CUSIP is 14843C105. A total of 175 filers reported holding CASTLE BIOSCIENCES INC in Q1 2021. The put-call ratio across all filers is 5.22 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $2,494,000 | -14.2% | 37,141 | -34.2% | 0.68% | -36.6% |
| Q3 2020 | $2,906,000 | +36.5% | 56,476 | 0.0% | 1.07% | +11.4% |
| Q2 2020 | $2,129,000 | +26.4% | 56,476 | 0.0% | 0.96% | -2.8% |
| Q1 2020 | $1,684,000 | -0.7% | 56,476 | +14.4% | 0.98% | +45.1% |
| Q4 2019 | $1,696,000 | +113.3% | 49,357 | +12.2% | 0.68% | +75.5% |
| Q3 2019 | $795,000 | – | 43,974 | – | 0.39% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ABG Innovation Capital Partners III GP Ltd | 33,626 | $567,943 | 77.21% |
| Millrace Asset Group, Inc. | 77,315 | $1,306 | 1.61% |
| Granahan Investment Management | 2,487,673 | $42,016,797 | 1.50% |
| Parkman Healthcare Partners LLC | 224,592 | $3,793,359 | 0.70% |
| PERKINS CAPITAL MANAGEMENT INC | 29,160 | $493 | 0.49% |
| Capital Impact Advisors, LLC | 16,554 | $279,597 | 0.47% |
| Soleus Capital Management, L.P. | 283,500 | $4,788,315 | 0.44% |
| Portolan Capital Management | 253,028 | $4,273,643 | 0.40% |
| Numerai GP LLC | 68,163 | $1,151,273 | 0.38% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 946,620 | $15,988,412 | 0.35% |