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, Q4 2023
Institutional positions in Castle Biosciences Inc as of Dec 31, 2023. 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
- 153
- +19 vs. Q3 2023
- Shares held
- 23.9M
- +742.8K (+3.2%) vs. Q3 2023
- Total value
- $515.4M
- +$124.6M (+31.9%) vs. Q3 2023
- New holders
- 37
- 55 more added
- Sold out
- 18
- 45 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Numerai GP LLC | 43,979 | $949.1K | 0.34% | −24,184−35.5% | Reduced |
| Alliancebernstein L.P. | 44,690 | $964.4K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 44,900 | $968.9K | 0.00% | +44,900 | New |
| Gsa Capital Partners LLP | 48,096 | $1.04M | 0.09% | −4,099−7.9% | Reduced |
| Envestnet Asset Management Inc | 50,027 | $1.08M | 0.00% | −3,956−7.3% | Reduced |
| Swiss National Bank | 50,200 | $1.08M | 0.00% | −5,000−9.1% | Reduced |
| JPMorgan Chase & Co | 50,366 | $1.09M | 0.00% | −2,297−4.4% | Reduced |
| D. E. Shaw & Co., Inc. | 52,364 | $1.13M | 0.00% | +52,364 | New |
| Polar Asset Management Partners Inc. | 53,200 | $1.15M | 0.03% | +53,200 | New |
| Cubist Systematic Strategies, LLC | 70,216 | $1.52M | 0.02% | −66,321−48.6% | Reduced |
| Brinker Capital Investments, LLC | 69,733 | $1.53M | 0.02% | −4,294−5.8% | Reduced |
| Orion Portfolio Solutions, LLC | 69,733 | $1.53M | 0.02% | −4,294−5.8% | Reduced |
| Millrace Asset Group, Inc. | 78,914 | $1.70M | 1.69% | +1,599+2.1% | Added |
| Goldman Sachs Group Inc | 80,389 | $1.73M | 0.00% | −71,362−47.0% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 88,570 | $1.91M | 0.01% | +7,985+9.9% | Added |
| Acadian Asset Management LLC | 91,381 | $1.97M | 0.01% | +91,381 | New |
| Bank of New York Mellon Corp | 93,308 | $2.01M | 0.00% | +12,167+15.0% | Added |
| Tritonpoint Wealth, LLC | 94,356 | $2.04M | 0.20% | +94,356 | New |
| Public Employees Retirement System of Ohio | 100,254 | $2.16M | 0.01% | 00.0% | Unchanged |
| Knights of Columbus Asset Advisors LLC | 106,262 | $2.29M | 0.15% | +52,921+99.2% | Added |
| Renaissance Technologies LLC | 112,400 | $2.43M | 0.00% | +5,600+5.2% | Added |
| Advisors Capital Management, LLC | 121,889 | $2.63M | 0.05% | +4,999+4.3% | Added |
| Algert Global LLC | 129,110 | $2.79M | 0.11% | +61,898+92.1% | Added |
| Bank of America Corp | 138,578 | $2.99M | 0.00% | +95,855+224.4% | Added |
| Deutsche Bank AG | 155,830 | $3.36M | 0.00% | +141,792+1,010.1% | Added |
| Schonfeld Strategic Advisors LLC | 161,300 | $3.48M | 0.03% | +13,270+9.0% | Added |
| Invenomic Capital Management LP | 171,812 | $3.71M | 0.20% | −114,145−39.9% | Reduced |
| Nuveen Asset Management, LLC | 182,474 | $3.94M | 0.00% | +6,190+3.5% | Added |
| Banque Pictet & Cie SA | 182,664 | $3.94M | 0.04% | −20,611−10.1% | Reduced |
| Charles Schwab Investment Management Inc | 207,295 | $4.47M | 0.00% | +6,306+3.1% | Added |
| Next Century Growth Investors LLC | 213,886 | $4.62M | 0.45% | +213,886 | New |
| New York State Common Retirement Fund | 237,126 | $5.12M | 0.01% | −8,742−3.6% | Reduced |
| Northern Trust Corp | 249,983 | $5.39M | 0.00% | +6,137+2.5% | Added |
| Ameriprise Financial Inc | 279,727 | $6.04M | 0.00% | +13,727+5.2% | Added |
| Intrinsic Edge Capital Management LLC | 326,270 | $7.04M | 0.75% | +170,000+108.8% | Added |
| Citadel Advisors LLC | 328,749 | $7.09M | 0.01% | −189,309−36.5% | Reduced |
| Parkman Healthcare Partners LLC | 357,156 | $7.71M | 1.09% | +132,564+59.0% | Added |
| Morgan Stanley | 478,035 | $10.3M | 0.00% | +439,389+1,137.0% | Added |
| Jacobs Levy Equity Management, Inc | 536,787 | $11.6M | 0.06% | −10,616−1.9% | Reduced |
| Palisade Capital Management LLC | 539,135 | $11.6M | 0.31% | −63,126−10.5% | Reduced |
| Kornitzer Capital Management Inc | 542,874 | $11.7M | 0.23% | −105,350−16.3% | Reduced |
| Geode Capital Management, LLC | 566,115 | $12.2M | 0.00% | +29,879+5.6% | Added |
| State Street Corp | 579,918 | $12.5M | 0.00% | +14,754+2.6% | Added |
| Dimensional Fund Advisors LP | 663,882 | $14.3M | 0.00% | +108,481+19.5% | Added |
| Millennium Management LLC | 716,350 | $15.5M | 0.01% | +121,254+20.4% | Added |
| Portolan Capital Management, LLC | 728,653 | $15.7M | 1.37% | +475,625+188.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 965,428 | $20.8M | 0.38% | +18,808+2.0% | Added |
| Bellevue Group AG | 1,232,378 | $26.6M | 0.41% | +4,347+0.4% | Added |
| Vanguard Group Inc | 1,461,481 | $31.5M | 0.00% | +22,093+1.5% | Added |
| Principal Financial Group Inc | 1,585,673 | $34.2M | 0.02% | +103,503+7.0% | Added |
| Granahan Investment Management Inc | 2,166,471 | $46.8M | 1.54% | −321,202−12.9% | Reduced |
| BlackRock Inc. | 2,283,199 | $49.3M | 0.00% | +147,019+6.9% | Added |
| Wasatch Advisors Inc | 2,590,951 | $55.9M | 0.31% | −189,793−6.8% | Reduced |
| Walleye Capital LLC | 0 | $0 | 0.00% | −170,786−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −44,200−100.0% | Sold out |
| Alpha DNA Investment Management LLC | 0 | $0 | 0.00% | −29,399−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −28,358−100.0% | Sold out |
| AE Wealth Management LLC | 0 | $0 | 0.00% | −26,182−100.0% | Sold out |
| Mach-1 Financial Group, Inc. | 0 | $0 | 0.00% | −26,034−100.0% | Sold out |
| Channing Capital Management, LLC | 0 | $0 | 0.00% | −13,403−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −12,942−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −11,274−100.0% | Sold out |
| BluePath Capital Management, LLC | 0 | $0 | 0.00% | −1,811−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −695−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −260−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Park Place Capital Corp | 0 | $0 | 0.00% | −53−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Claybrook Capital, LLC | – | – | – | – | Not filed |