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 2023
Institutional positions in Castle Biosciences Inc as of Mar 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
- 148
- −3 vs. Q4 2022
- Shares held
- 22.1M
- +254.8K (+1.2%) vs. Q4 2022
- Total value
- $501.9M
- −$12.1M (−2.4%) vs. Q4 2022
- New holders
- 15
- 63 more added
- Sold out
- 18
- 37 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 44,328 | $1.01M | 0.00% | +8,930+25.2% | Added |
| Zacks Investment Management | 46,030 | $1.05M | 0.01% | +3,541+8.3% | Added |
| Swiss National Bank | 48,400 | $1.10M | 0.00% | −5,500−10.2% | Reduced |
| Bank of America Corp | 57,162 | $1.30M | 0.00% | +8,205+16.8% | Added |
| Norges Bank | 61,600 | $1.40M | 0.00% | −69,600−53.0% | Reduced |
| Isthmus Partners, LLC | 64,472 | $1.46M | 0.21% | +6,660+11.5% | Added |
| Public Employees Retirement System of Ohio | 66,705 | $1.52M | 0.01% | 00.0% | Unchanged |
| Algert Global LLC | 69,382 | $1.58M | 0.07% | +530+0.8% | Added |
| Stephens Inc | 75,019 | $1.70M | 0.03% | +21,387+39.9% | Added |
| Bank of New York Mellon Corp | 81,368 | $1.85M | 0.00% | −1,614−1.9% | Reduced |
| Invenomic Capital Management LP | 87,252 | $1.98M | 0.11% | +87,252 | New |
| Morgan Stanley | 88,864 | $2.02M | 0.00% | +30,546+52.4% | Added |
| Voya Investment Management LLC | 90,920 | $2.07M | 0.00% | −13,723−13.1% | Reduced |
| SEI Investments Co | 96,327 | $2.19M | 0.00% | +96,327 | New |
| Two Sigma Advisers, LP | 112,300 | $2.55M | 0.01% | −19,800−15.0% | Reduced |
| Ameriprise Financial Inc | 114,909 | $2.61M | 0.00% | +3,670+3.3% | Added |
| Goldman Sachs Group Inc | 137,914 | $3.13M | 0.00% | −108,942−44.1% | Reduced |
| UBS Asset Management Americas Inc | 157,322 | $3.57M | 0.00% | −1,741−1.1% | Reduced |
| First Light Asset Management, LLC | 161,618 | $3.67M | 0.33% | +140.0% | Added |
| Captrust Financial Advisors | 168,732 | $3.83M | 0.02% | +168,732 | New |
| Charles Schwab Investment Management Inc | 183,666 | $4.17M | 0.00% | −870−0.5% | Reduced |
| Banque Pictet & Cie SA | 190,385 | $4.33M | 0.04% | −14,032−6.9% | Reduced |
| New York State Common Retirement Fund | 220,925 | $5.02M | 0.01% | +6,447+3.0% | Added |
| Northern Trust Corp | 225,702 | $5.13M | 0.00% | −4,391−1.9% | Reduced |
| Portolan Capital Management, LLC | 256,649 | $5.83M | 0.56% | −327,067−56.0% | Reduced |
| RTW Investments, LP | 258,498 | $5.87M | 0.12% | −258,497−50.0% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 272,135 | $6.18M | 0.14% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 284,847 | $6.47M | 0.02% | +83,466+41.4% | Added |
| Stonepine Capital Management, LLC | 292,866 | $6.65M | 2.23% | +114,626+64.3% | Added |
| Allspring Global Investments Holdings, LLC | 368,453 | $8.37M | 0.01% | +15,623+4.4% | Added |
| Intrinsic Edge Capital Management LLC | 395,836 | $8.99M | 0.91% | +30,869+8.5% | Added |
| Nuveen Asset Management, LLC | 405,758 | $9.22M | 0.00% | +103,109+34.1% | Added |
| Essex Investment Management Co LLC | 480,918 | $10.9M | 1.59% | +27,601+6.1% | Added |
| Dimensional Fund Advisors LP | 483,652 | $11.0M | 0.00% | +159,966+49.4% | Added |
| Geode Capital Management, LLC | 484,954 | $11.0M | 0.00% | +19,287+4.1% | Added |
| Greenhouse Funds LLLP | 494,241 | $11.2M | 0.98% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 494,781 | $11.2M | 0.11% | +15,122+3.2% | Added |
| State Street Corp | 522,528 | $11.9M | 0.00% | +18,075+3.6% | Added |
| Palisade Capital Management LLC | 577,018 | $13.1M | 0.35% | +25,923+4.7% | Added |
| Kornitzer Capital Management Inc | 648,224 | $14.7M | 0.29% | −68,020−9.5% | Reduced |
| Citadel Advisors LLC | 660,956 | $15.0M | 0.02% | +109,641+19.9% | Added |
| Millennium Management LLC | 825,437 | $18.8M | 0.02% | −87,938−9.6% | Reduced |
| Bellevue Group AG | 948,878 | $21.6M | 0.31% | +4,566+0.5% | Added |
| Granahan Investment Management Inc | 1,200,049 | $27.3M | 0.83% | +155,721+14.9% | Added |
| Principal Financial Group Inc | 1,287,147 | $29.2M | 0.02% | +376,327+41.3% | Added |
| Vanguard Group Inc | 1,403,901 | $31.9M | 0.00% | +11,177+0.8% | Added |
| BlackRock Inc. | 2,119,557 | $48.2M | 0.00% | −4,131−0.2% | Reduced |
| Wasatch Advisors Inc | 2,979,913 | $67.7M | 0.42% | −242,649−7.5% | Reduced |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −107,100−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −58,903−100.0% | Sold out |
| Premier Fund Managers Ltd | 0 | $0 | 0.00% | −38,502−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −29,167−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −28,937−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −13,698−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −12,501−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −11,275−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −8,547−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −4,294−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −2,183−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −398−100.0% | Sold out |
| Zions Bancorporation, N.A. | 0 | $0 | 0.00% | −213−100.0% | Sold out |
| Creative Financial Designs Inc | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Truvestments Capital LLC | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Accurate Wealth Management, LLC | 0 | $0 | 0.00% | −61−100.0% | Sold out |
| MBM Wealth Consultants, LLC | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Monarch Partners Asset Management LLC | – | – | – | – | Not filed |
| Trustcore Financial Services, LLC | – | – | – | – | Not filed |