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 |
|---|---|---|---|---|---|
| Simplex Trading, LLC | 6 | $0 | 0.00% | +6 | New |
| CWM, LLC | 12 | $0 | 0.00% | +12 | New |
| Huntington National Bank | 1 | $22 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 5 | $111 | 0.00% | 00.0% | Unchanged |
| Colonial Trust Advisors | 6 | $133 | 0.00% | 00.0% | Unchanged |
| Fairman Group, LLC | 13 | $288 | 0.00% | 00.0% | Unchanged |
| Missouri Trust & Investment Co | 19 | $421 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 38 | $842 | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 41 | $908 | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 85 | $1.00K | 0.00% | +20+30.8% | Added |
| Principal Securities, Inc. | 54 | $1.20K | 0.00% | −129−70.5% | Reduced |
| BFSG, LLC | 90 | $1.99K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 86 | $2.00K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 121 | $2.68K | 0.00% | +100+476.2% | Added |
| Lindbrook Capital, LLC | 172 | $3.81K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 190 | $4.21K | 0.00% | −5,153−96.4% | Reduced |
| MCF Advisors LLC | 258 | $5.71K | 0.00% | 00.0% | Unchanged |
| Hillsdale Investment Management Inc. | 300 | $6.64K | 0.00% | +300 | New |
| Nisa Investment Advisors, LLC | 328 | $7.26K | 0.00% | +8+2.5% | Added |
| US Bancorp | 466 | $10.3K | 0.00% | +165+54.8% | Added |
| Macroview Investment Management LLC | 506 | $11.2K | 0.01% | +373+280.5% | Added |
| Arcadia Investment Management Corp | 522 | $11.6K | 0.00% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 731 | $16.2K | 0.00% | +5+0.7% | Added |
| Amalgamated Bank | 833 | $18.0K | 0.00% | −1,850−69.0% | Reduced |
| FMR LLC | 872 | $19.3K | 0.00% | −73−7.7% | Reduced |
| Ronald Blue Trust, Inc. | 956 | $21.2K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,100 | $24.4K | 0.00% | −5−0.5% | Reduced |
| Metropolitan Life Insurance Co | 1,410 | $31.2K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,450 | $54.3K | 0.00% | 00.0% | Unchanged |
| RiverPark Advisors, LLC | 2,861 | $63.4K | 0.05% | +2,242+362.2% | Added |
| Royal Bank of Canada | 3,152 | $70.0K | 0.00% | −6,687−68.0% | Reduced |
| Assetmark, Inc | 3,958 | $87.7K | 0.00% | −778−16.4% | Reduced |
| Quest Partners LLC | 4,028 | $89.2K | 0.02% | +4,028 | New |
| China Universal Asset Management Co., Ltd. | 5,297 | $117.3K | 0.01% | +2,187+70.3% | Added |
| Advisor Group Holdings, Inc. | 5,456 | $120.8K | 0.00% | −2,883−34.6% | Reduced |
| Citigroup Inc | 6,654 | $147.4K | 0.00% | +1,069+19.1% | Added |
| First Horizon Advisors, Inc. | 7,853 | $173.9K | 0.01% | 00.0% | Unchanged |
| Denali Advisors LLC | 8,400 | $186.1K | 0.05% | +8,400 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,930 | $197.8K | 0.00% | +738+9.0% | Added |
| Janus Henderson Group PLC | 9,266 | $205.0K | 0.00% | −40.0% | Reduced |
| Wells Fargo & Company | 9,426 | $208.8K | 0.00% | +1,479+18.6% | Added |
| Manufacturers Life Insurance Company, The | 9,447 | $209.3K | 0.00% | −503−5.1% | Reduced |
| Centiva Capital, LP | 9,502 | $210.5K | 0.01% | −3,056−24.3% | Reduced |
| Versor Investments LP | 10,238 | $226.8K | 0.05% | −3,905−27.6% | Reduced |
| Lido Advisors, LLC | 10,524 | $233.1K | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 10,862 | $240.6K | 0.00% | +5,123+89.3% | Added |
| Corton Capital Inc. | 11,123 | $246.4K | 0.09% | −1,220−9.9% | Reduced |
| Royce & Associates LP | 11,125 | $246.4K | 0.00% | −20,517−64.8% | Reduced |
| State Board of Administration of Florida Retirement System | 10,954 | $248.9K | 0.00% | +10,954 | New |
| Mirae Asset Global Investments Co., Ltd. | 11,732 | $260.4K | 0.00% | +143+1.2% | Added |
| Truist Financial Corp | 11,797 | $261.3K | 0.00% | +167+1.4% | Added |
| Graham Capital Management, L.P. | 12,190 | $270.0K | 0.01% | −2,690−18.1% | Reduced |
| American International Group, Inc. | 12,244 | $271.2K | 0.00% | −105−0.9% | Reduced |
| MetLife Investment Management | 12,369 | $274.0K | 0.00% | 00.0% | Unchanged |
| Diversify Advisory Services, LLC | 12,498 | $278.1K | 0.02% | +12,498 | New |
| Pictet & Cie (Europe) SA | 12,897 | $285.7K | 0.01% | −666−4.9% | Reduced |
| Tudor Investment Corp Et Al | 12,997 | $287.9K | 0.00% | +12,997 | New |
| D. E. Shaw & Co., Inc. | 13,382 | $296.4K | 0.00% | −38,982−74.4% | Reduced |
| Birchview Capital, LP | 14,000 | $310.1K | 0.25% | +4,000+40.0% | Added |
| Premier Fund Managers Ltd | 14,783 | $314.0K | 0.01% | +14,783 | New |
| Balyasny Asset Management LLC | 14,748 | $326.7K | 0.00% | +14,748 | New |
| HRT Financial LP | 15,011 | $332.0K | 0.00% | +15,011 | New |
| New York Life Investment Management LLC | 16,516 | $365.8K | 0.00% | +16,516 | New |
| Two Sigma Investments, LP | 16,700 | $369.9K | 0.00% | −600−3.5% | Reduced |
| Great West Life Assurance Co | 16,892 | $374.0K | 0.00% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 17,642 | $390.8K | 0.00% | −2,273−11.4% | Reduced |
| Price T Rowe Associates Inc | 18,034 | $400.0K | 0.00% | +1,131+6.7% | Added |
| Los Angeles Capital Management LLC | 18,201 | $403.2K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 19,000 | $420.9K | 0.00% | −13,100−40.8% | Reduced |
| TownSquare Capital, LLC | 19,352 | $428.6K | 0.01% | −3,389−14.9% | Reduced |
| Petrus Trust Company, LTA | 19,609 | $434.3K | 0.04% | +19,609 | New |
| Sherbrooke Park Advisers LLC | 20,825 | $461.3K | 0.09% | +20,825 | New |
| Captrust Financial Advisors | 21,050 | $466.3K | 0.00% | −17,359−45.2% | Reduced |
| STRS Ohio | 22,700 | $502.0K | 0.00% | −1,400−5.8% | Reduced |
| Capital Impact Advisors, LLC | 22,713 | $503.1K | 0.65% | +6,159+37.2% | Added |
| AQR Capital Management LLC | 22,795 | $504.9K | 0.00% | +8,592+60.5% | Added |
| Alpha DNA Investment Management LLC | 23,040 | $510.3K | 0.28% | +23,040 | New |
| Man Group plc | 23,057 | $510.7K | 0.00% | +23,057 | New |
| Y-Intercept (Hong Kong) Ltd | 24,603 | $545.0K | 0.04% | +14,010+132.3% | Added |
| Legal & General Group Plc | 24,771 | $548.7K | 0.00% | −50−0.2% | Reduced |
| Knights of Columbus Asset Advisors LLC | 25,133 | $556.7K | 0.04% | −81,129−76.3% | Reduced |
| California State Teachers Retirement System | 25,484 | $564.5K | 0.00% | −1,282−4.8% | Reduced |
| Parallel Advisors, LLC | 26,668 | $590.7K | 0.02% | −300−1.1% | Reduced |
| Invesco Ltd. | 27,396 | $606.8K | 0.00% | −4,760−14.8% | Reduced |
| Simon Quick Advisors, LLC | 29,062 | $643.7K | 0.05% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 29,996 | $664.4K | 0.02% | −1,271−4.1% | Reduced |
| Russell Investments Group, Ltd. | 31,693 | $702.0K | 0.00% | −290−0.9% | Reduced |
| UBS Asset Management Americas Inc | 31,788 | $704.1K | 0.00% | +4,527+16.6% | Added |
| Perkins Capital Management Inc | 32,140 | $712.0K | 0.59% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 33,370 | $739.1K | 0.00% | −11,320−25.3% | Reduced |
| ABG Innovation Capital Partners III GP Ltd | 33,626 | $744.8K | 89.54% | −3,121−8.5% | Reduced |
| HSBC Holdings PLC | 34,468 | $763.5K | 0.00% | +34,468 | New |
| Stephens Inc | 34,734 | $769.4K | 0.01% | −8,845−20.3% | Reduced |
| Franklin Resources Inc | 35,500 | $786.3K | 0.00% | +35,500 | New |
| Credit Suisse AG | 35,809 | $793.2K | 0.00% | +1,759+5.2% | Added |
| American Century Companies Inc | 37,920 | $839.9K | 0.00% | +11,211+42.0% | Added |
| Rhumbline Advisers | 38,908 | $861.8K | 0.00% | +1,000+2.6% | Added |
| Harbor Capital Advisors, Inc. | 39,706 | $879.0K | 0.11% | +27,754+232.2% | Added |
| Trexquant Investment LP | 44,997 | $996.7K | 0.02% | +33,506+291.6% | Added |
| Envestnet Asset Management Inc | 45,927 | $1.02M | 0.00% | −4,100−8.2% | Reduced |