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 |
|---|---|---|---|---|---|
| State Board of Administration of Florida Retirement System | 10,954 | $248.9K | 0.00% | 00.0% | Unchanged |
| First Republic Investment Management, Inc. | 10,770 | $244.7K | 0.00% | +631+6.2% | Added |
| UBS Group AG | 10,574 | $240.2K | 0.00% | +89+0.8% | Added |
| Legal & General Group Plc | 10,494 | $238.4K | 0.00% | +674+6.9% | Added |
| Manufacturers Life Insurance Company, The | 9,634 | $218.9K | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 9,296 | $211.0K | 0.00% | +9,296 | New |
| Great West Life Assurance Co | 8,404 | $191.0K | 0.00% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 7,900 | $176.0K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 6,989 | $158.8K | 0.01% | +18+0.3% | Added |
| Wells Fargo & Company | 5,834 | $132.5K | 0.00% | −18,247−75.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,888 | $88.3K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 3,138 | $71.0K | 0.00% | +3,138 | New |
| Citigroup Inc | 2,746 | $62.4K | 0.00% | −726−20.9% | Reduced |
| Cullen/Frost Bankers, Inc. | 2,685 | $61.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 2,642 | $60.0K | 0.00% | +178+7.2% | Added |
| The PNC Financial Services Group, Inc. | 2,596 | $59.0K | 0.00% | −154−5.6% | Reduced |
| Quantbot Technologies LP | 2,545 | $57.8K | 0.00% | −5,329−67.7% | Reduced |
| Amalgamated Bank | 2,515 | $57.0K | 0.00% | −599−19.2% | Reduced |
| Assetmark, Inc | 2,238 | $50.8K | 0.00% | +738+49.2% | Added |
| Royal Bank of Canada | 2,050 | $47.0K | 0.00% | −2,177−51.5% | Reduced |
| Ameritas Investment Partners, Inc. | 1,671 | $38.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 1,410 | $32.0K | 0.00% | 00.0% | Unchanged |
| Ten Capital Wealth Advisors, LLC | 1,376 | $31.3K | 0.01% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,084 | $25.0K | 0.00% | +920+561.0% | Added |
| FMR LLC | 713 | $16.2K | 0.00% | −61−7.9% | Reduced |
| Tower Research Capital LLC (TRC) | 625 | $14.0K | 0.00% | +160+34.4% | Added |
| State of Wyoming | 397 | $9.02K | 0.00% | +11+2.8% | Added |
| Huntington National Bank | 383 | $8.70K | 0.00% | +13+3.5% | Added |
| China Universal Asset Management Co., Ltd. | 360 | $8.18K | 0.00% | +92+34.3% | Added |
| US Bancorp | 239 | $5.43K | 0.00% | +19+8.6% | Added |
| Baillie Gifford & Co | 225 | $5.11K | 0.00% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 199 | $4.52K | 0.00% | +199 | New |
| Raleigh Capital Management Inc. | 185 | $4.20K | 0.00% | +25+15.6% | Added |
| TCI Wealth Advisors, Inc. | 164 | $3.73K | 0.00% | +164 | New |
| Allworth Financial LP | 131 | $2.98K | 0.00% | +123+1,537.5% | Added |
| Daiwa Securities Group Inc. | 86 | $2.00K | 0.00% | 00.0% | Unchanged |
| C M Bidwell & Associates Ltd | 75 | $1.70K | 0.00% | +75 | New |
| Lindbrook Capital, LLC | 68 | $1.54K | 0.00% | −12−15.0% | Reduced |
| Private Trust Co NA | 60 | $1.36K | 0.00% | 00.0% | Unchanged |
| Park Place Capital Corp | 53 | $1.20K | 0.00% | 00.0% | Unchanged |
| Baystate Wealth Management LLC | 50 | $1.14K | 0.00% | +50 | New |
| Advisory Services Network, LLC | 38 | $863 | 0.00% | 00.0% | Unchanged |
| Manchester Capital Management LLC | 37 | $841 | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 27 | $619 | 0.00% | −50−64.9% | Reduced |
| Missouri Trust & Investment Co | 19 | $432 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 12 | $273 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 11 | $235 | 0.00% | 00.0% | Unchanged |
| Colonial Trust Advisors | 6 | $136 | 0.00% | 00.0% | Unchanged |
| 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 |