Castle Biosciences Inc
CSTL- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001447362
In the last 90 days, Castle Biosciences Inc insiders filed 0 open-market purchases and 20 sales; 176 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.
13F holders, Q1 2024
Institutional positions in Castle Biosciences Inc as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 151
- +1 vs. Q4 2023
- Shares held
- 25.0M
- +1.13M (+4.8%) vs. Q4 2023
- Total value
- $553.2M
- +$38.6M (+7.5%) vs. Q4 2023
- New holders
- 18
- 54 more added
- Sold out
- 17
- 55 more reduced
3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CSTL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 176 | $653.8M |
| Q1 2026 | 186 | $677.8M |
| Q4 2025 | 195 | $1.06B |
| Q3 2025 | 173 | $608.3M |
| Q2 2025 | 152 | $541.8M |
| Q1 2025 | 180 | $516.3M |
| Q4 2024 | 197 | $706.4M |
| Q3 2024 | 185 | $736.9M |
| Q2 2024 | 159 | $549.4M |
| Q1 2024 | 151 | $553.2M |
| Q4 2023 | 153 | $515.4M |
| Q3 2023 | 135 | $391.0M |
| Q2 2023 | 130 | $316.6M |
| Q1 2023 | 148 | $501.9M |
| Q4 2022 | 153 | $522.0M |
| Q3 2022 | 157 | $569.8M |
| Q2 2022 | 146 | $495.0M |
| Q1 2022 | 160 | $1.02B |
| Q4 2021 | 159 | $918.6M |
| Q3 2021 | 188 | $1.42B |
| Q2 2021 | 182 | $1.52B |
| Q1 2021 | 175 | $1.46B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Barclays PLC | 47,425 | $1.05M | 0.00% | +8,045+20.4% | Added |
| Millrace Asset Group, Inc. | 49,773 | $1.10M | 1.11% | −29,141−36.9% | Reduced |
| Swiss National Bank | 50,200 | $1.11M | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 52,448 | $1.16M | 0.09% | +4,352+9.0% | Added |
| UBS Group AG | 54,843 | $1.21M | 0.00% | +13,366+32.2% | Added |
| Polar Asset Management Partners Inc. | 60,800 | $1.35M | 0.04% | +7,600+14.3% | Added |
| Brinker Capital Investments, LLC | 67,237 | $1.49M | 0.02% | −2,496−3.6% | Reduced |
| Orion Portfolio Solutions, LLC | 67,237 | $1.49M | 0.02% | −2,496−3.6% | Reduced |
| JPMorgan Chase & Co | 76,143 | $1.69M | 0.00% | +25,777+51.2% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 77,657 | $1.72M | 0.01% | −10,913−12.3% | Reduced |
| Cubist Systematic Strategies, LLC | 81,744 | $1.81M | 0.02% | +11,528+16.4% | Added |
| Bank of New York Mellon Corp | 84,105 | $1.86M | 0.00% | −9,203−9.9% | Reduced |
| Tritonpoint Wealth, LLC | 92,250 | $2.04M | 0.21% | −2,106−2.2% | Reduced |
| Public Employees Retirement System of Ohio | 93,436 | $2.07M | 0.01% | −6,818−6.8% | Reduced |
| Marshall Wace, LLP | 97,932 | $2.17M | 0.00% | +53,032+118.1% | Added |
| Goldman Sachs Group Inc | 124,672 | $2.76M | 0.00% | +44,283+55.1% | Added |
| Advisors Capital Management, LLC | 141,115 | $3.13M | 0.06% | +19,226+15.8% | Added |
| Algert Global LLC | 145,407 | $3.22M | 0.13% | +16,297+12.6% | Added |
| Bank of America Corp | 151,165 | $3.35M | 0.00% | +12,587+9.1% | Added |
| Schonfeld Strategic Advisors LLC | 165,441 | $3.66M | 0.03% | +4,141+2.6% | Added |
| Invenomic Capital Management LP | 166,714 | $3.69M | 0.20% | −5,098−3.0% | Reduced |
| Banque Pictet & Cie SA | 166,881 | $3.70M | 0.04% | −15,783−8.6% | Reduced |
| Nuveen Asset Management, LLC | 189,628 | $4.20M | 0.00% | +7,154+3.9% | Added |
| Renaissance Technologies LLC | 204,700 | $4.53M | 0.01% | +92,300+82.1% | Added |
| Charles Schwab Investment Management Inc | 204,937 | $4.54M | 0.00% | −2,358−1.1% | Reduced |
| Acadian Asset Management LLC | 210,824 | $4.67M | 0.02% | +119,443+130.7% | Added |
| Next Century Growth Investors LLC | 219,473 | $4.86M | 0.42% | +5,587+2.6% | Added |
| Intrinsic Edge Capital Management LLC | 223,567 | $4.95M | 0.42% | −102,703−31.5% | Reduced |
| New York State Common Retirement Fund | 228,579 | $5.06M | 0.01% | −8,547−3.6% | Reduced |
| Northern Trust Corp | 244,388 | $5.41M | 0.00% | −5,595−2.2% | Reduced |
| Millennium Management LLC | 248,553 | $5.51M | 0.00% | −467,797−65.3% | Reduced |
| Deutsche Bank AG | 262,808 | $5.82M | 0.00% | +106,978+68.7% | Added |
| Ameriprise Financial Inc | 295,327 | $6.54M | 0.00% | +15,600+5.6% | Added |
| Parkman Healthcare Partners LLC | 367,408 | $8.14M | 1.00% | +10,252+2.9% | Added |
| Jacobs Levy Equity Management, Inc | 531,902 | $11.8M | 0.05% | −4,885−0.9% | Reduced |
| Kornitzer Capital Management Inc | 542,874 | $12.0M | 0.22% | 00.0% | Unchanged |
| Palisade Capital Management LLC | 547,167 | $12.1M | 0.32% | +8,032+1.5% | Added |
| Geode Capital Management, LLC | 578,534 | $12.8M | 0.00% | +12,419+2.2% | Added |
| State Street Corp | 605,799 | $13.4M | 0.00% | +25,881+4.5% | Added |
| Morgan Stanley | 650,711 | $14.4M | 0.00% | +172,676+36.1% | Added |
| Citadel Advisors LLC | 655,766 | $14.5M | 0.01% | +327,017+99.5% | Added |
| Soleus Capital Management, L.P. | 725,457 | $16.1M | 1.41% | +699,457+2,690.2% | Added |
| Dimensional Fund Advisors LP | 749,259 | $16.6M | 0.00% | +85,377+12.9% | Added |
| Deerfield Management Company, L.P. (Series C) | 928,017 | $20.6M | 0.36% | −37,411−3.9% | Reduced |
| Portolan Capital Management, LLC | 1,043,410 | $23.1M | 1.76% | +314,757+43.2% | Added |
| Bellevue Group AG | 1,220,085 | $27.0M | 0.41% | −12,293−1.0% | Reduced |
| Vanguard Group Inc | 1,494,176 | $33.1M | 0.00% | +32,695+2.2% | Added |
| Principal Financial Group Inc | 1,532,472 | $33.9M | 0.02% | −53,201−3.4% | Reduced |
| Granahan Investment Management Inc | 1,627,224 | $36.0M | 1.27% | −539,247−24.9% | Reduced |
| Wasatch Advisors Inc | 2,551,088 | $56.5M | 0.30% | −39,863−1.5% | Reduced |
| BlackRock Inc. | 2,595,687 | $57.5M | 0.00% | +312,488+13.7% | Added |
| Numerai GP LLC | 0 | $0 | 0.00% | −43,979−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −43,351−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −26,600−100.0% | Sold out |
| Fan Yu | 0 | $0 | 0.00% | −22,503−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −20,436−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −14,145−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −12,193−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −12,193−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −12,150−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −10,187−100.0% | Sold out |
| WuXi AppTec Co., Ltd. | 0 | $0 | 0.00% | −6,636−100.0% | Sold out |
| O'Dell Group, LLC | 0 | $0 | 0.00% | −2,041−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −930−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Tfo-TDC, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Putnam Investments LLC | – | – | – | – | Not filed |
| DFPG Investments, LLC | – | – | – | – | Not filed |
| Coppell Advisory Solutions LLC | – | – | – | – | Not filed |