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, Q2 2021
Institutional positions in Castle Biosciences Inc as of Jun 30, 2021. 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
- 182
- +8 vs. Q1 2021
- Shares held
- 20.8M
- −230.1K (−1.1%) vs. Q1 2021
- Total value
- $1.52B
- +$82.2M (+5.7%) vs. Q1 2021
- New holders
- 37
- 78 more added
- Sold out
- 29
- 45 more reduced
1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Valmark Advisers, Inc. | 8,795 | $645.0K | 0.01% | +351+4.2% | Added |
| First Trust Advisors LP | 8,569 | $628.0K | 0.00% | +8,569 | New |
| Mesirow Financial Investment Management, Inc. | 8,183 | $600.0K | 1.53% | +34+0.4% | Added |
| MetLife Investment Management | 7,804 | $572.3K | 0.01% | +2,020+34.9% | Added |
| STRS Ohio | 7,200 | $527.0K | 0.00% | −5,500−43.3% | Reduced |
| DekaBank Deutsche Girozentrale | 7,000 | $523.0K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 6,800 | $499.0K | 0.05% | +6,800 | New |
| Handelsbanken Fonder AB | 6,700 | $491.0K | 0.00% | +6,700 | New |
| Truist Financial Corp | 6,539 | $480.0K | 0.00% | +6,539 | New |
| Advisor Group Holdings, Inc. | 6,072 | $444.0K | 0.00% | +3,006+98.0% | Added |
| Metropolitan Life Insurance Co | 5,975 | $438.1K | 0.01% | +1,748+41.4% | Added |
| Cubist Systematic Strategies, LLC | 5,724 | $420.0K | 0.00% | −3,377−37.1% | Reduced |
| Arizona State Retirement System | 5,383 | $395.0K | 0.00% | +109+2.1% | Added |
| Price T Rowe Associates Inc | 5,372 | $394.0K | 0.00% | +792+17.3% | Added |
| Martingale Asset Management L P | 5,305 | $390.0K | 0.00% | −100−1.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,167 | $379.0K | 0.00% | +160+3.2% | Added |
| Prelude Capital Management, LLC | 5,143 | $377.0K | 0.02% | +5,143 | New |
| Legal & General Group Plc | 5,062 | $372.0K | 0.00% | +990+24.3% | Added |
| Commonwealth Equity Services, LLC | 5,077 | $372.0K | 0.00% | +1,200+31.0% | Added |
| Pentwater Capital Management LP | 5,000 | $367.0K | 0.00% | −3,381−40.3% | Reduced |
| First Mercantile Trust Co | 5,000 | $367.0K | 0.04% | +1,100+28.2% | Added |
| Oppenheimer Asset Management Inc. | 4,454 | $326.0K | 0.00% | +79+1.8% | Added |
| Tower Research Capital LLC (TRC) | 4,448 | $326.0K | 0.01% | +606+15.8% | Added |
| Winton Group Ltd | 4,128 | $303.0K | 0.02% | +26+0.6% | Added |
| State Board of Administration of Florida Retirement System | 4,016 | $294.0K | 0.00% | +1,042+35.0% | Added |
| Quantbot Technologies LP | 3,981 | $291.0K | 0.02% | +3,981 | New |
| Amalgamated Bank | 3,940 | $289.0K | 0.00% | +3,940 | New |
| Prudential Financial Inc | 3,901 | $286.0K | 0.00% | +3,901 | New |
| Cullen/Frost Bankers, Inc. | 3,805 | $279.0K | 0.01% | 00.0% | Unchanged |
| MML Investors Services, LLC | 3,625 | $266.0K | 0.00% | +3,625 | New |
| TownSquare Capital, LLC | 3,686 | $265.0K | 0.01% | +3,686 | New |
| Cherry Creek Investment Advisors, Inc. | 3,585 | $263.0K | 0.17% | +3,585 | New |
| Dark Forest Capital Management LP | 3,573 | $262.0K | 0.11% | +3,573 | New |
| US Bancorp | 3,439 | $252.0K | 0.00% | +2,829+463.8% | Added |
| Los Angeles Capital Management LLC | 3,282 | $241.0K | 0.00% | −27,496−89.3% | Reduced |
| Commerce Bank | 3,205 | $235.0K | 0.00% | −10−0.3% | Reduced |
| M&T Bank Corp | 3,186 | $234.0K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 3,140 | $230.0K | 0.02% | +3,140 | New |
| Park Avenue Securities LLC | 3,038 | $223.0K | 0.00% | +3,038 | New |
| PDT Partners, LLC | 2,943 | $216.0K | 0.01% | −7,715−72.4% | Reduced |
| Squarepoint Ops LLC | 2,879 | $211.0K | 0.00% | −7,072−71.1% | Reduced |
| NinePointTwo Capital | 2,819 | $206.0K | 0.07% | +2,819 | New |
| SG Americas Securities, LLC | 2,532 | $186.0K | 0.00% | −62,344−96.1% | Reduced |
| First Quadrant L P | 2,501 | $183.0K | 0.02% | 00.0% | Unchanged |
| NEXT Financial Group, Inc | 2,437 | $179.0K | 0.01% | +2,428+26,977.8% | Added |
| Royal Bank of Canada | 1,775 | $130.0K | 0.00% | +235+15.3% | Added |
| Ameritas Investment Partners, Inc. | 1,671 | $123.0K | 0.00% | +486+41.0% | Added |
| Creative Financial Designs Inc | 1,648 | $121.0K | 0.02% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 1,641 | $120.0K | 0.00% | +1,641 | New |
| Simplex Trading, LLC | 1,620 | $118.0K | 0.00% | +1,620 | New |
| The PNC Financial Services Group, Inc. | 1,348 | $99.0K | 0.00% | −53−3.8% | Reduced |
| Great West Life Assurance Co | 1,292 | $94.0K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 950 | $70.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 680 | $50.0K | 0.00% | −8,497−92.6% | Reduced |
| O'Shaughnessy Asset Management, LLC | 606 | $44.0K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 570 | $41.0K | 0.00% | +15+2.7% | Added |
| Captrust Financial Advisors | 434 | $32.0K | 0.00% | +389+864.4% | Added |
| Leonteq Securities AG | 424 | $31.1K | 0.00% | +25+6.3% | Added |
| FORA Capital, LLC | 416 | $31.0K | 0.01% | −954−69.6% | Reduced |
| First Bank & Trust | 424 | $31.0K | 0.01% | +424 | New |
| Nisa Investment Advisors, LLC | 400 | $29.0K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 382 | $28.0K | 0.00% | +111+41.0% | Added |
| State of Wyoming | 342 | $25.0K | 0.02% | +342 | New |
| Assetmark, Inc | 325 | $24.0K | 0.00% | 00.0% | Unchanged |
| Baillie Gifford & Co | 200 | $15.0K | 0.00% | +200 | New |
| Rockefeller Capital Management L.P. | 200 | $14.0K | 0.00% | −1−0.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 108 | $8.00K | 0.00% | 00.0% | Unchanged |
| SOA Wealth Advisors, LLC. | 108 | $7.00K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 100 | $7.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 101 | $7.00K | 0.00% | +50+98.0% | Added |
| Wagner Wealth Management, LLC | 85 | $6.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 48 | $4.00K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 50 | $4.00K | 0.00% | 00.0% | Unchanged |
| Berman Capital Advisors, LLC | 43 | $3.00K | 0.00% | +43 | New |
| Howe & Rusling Inc | 24 | $2.00K | 0.00% | +24 | New |
| Panagora Asset Management Inc | 28 | $2.00K | 0.00% | +28 | New |
| Parallax Volatility Advisers, L.P. | 22 | $2.00K | 0.00% | +22 | New |
| FourThought Financial, LLC | 28 | $2.00K | 0.00% | +28 | New |
| Albion Financial Group | 10 | $1.00K | 0.00% | +10 | New |
| Charter Oak Capital Management, LLC | 11 | $1.00K | 0.00% | +11 | New |
| FMR LLC | 4 | $0 | 0.00% | −335,241−100.0% | Reduced |
| Global Wealth Management Investment Advisory, Inc. | 5 | $0 | 0.00% | 00.0% | Unchanged |
| Matrix Capital Management Company, LP | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| Highland Capital Management LP | 0 | $0 | 0.00% | −916,270−100.0% | Sold out |
| Select Equity Group, L.P. | 0 | $0 | 0.00% | −360,085−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −250,070−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −142,988−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −139,747−100.0% | Sold out |
| Ally Bridge Group (NY) LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −46,501−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −41,070−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −27,500−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −26,861−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −23,900−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −19,319−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −19,153−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −18,210−100.0% | Sold out |
| Graticule Asia Macro Advisors LLC | 0 | $0 | 0.00% | −14,521−100.0% | Sold out |
| Claybrook Capital, LLC | 0 | $0 | 0.00% | −10,026−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −8,300−100.0% | Sold out |