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 |
|---|---|---|---|---|---|
| FMR LLC | 4 | $0 | 0.00% | −335,241−100.0% | Reduced |
| Global Wealth Management Investment Advisory, Inc. | 5 | $0 | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 10 | $1.00K | 0.00% | +10 | New |
| Charter Oak Capital Management, LLC | 11 | $1.00K | 0.00% | +11 | 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 |
| Berman Capital Advisors, LLC | 43 | $3.00K | 0.00% | +43 | New |
| Daiwa Securities Group Inc. | 48 | $4.00K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 50 | $4.00K | 0.00% | 00.0% | Unchanged |
| Wagner Wealth Management, LLC | 85 | $6.00K | 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 |
| Healthcare of Ontario Pension Plan Trust Fund | 108 | $8.00K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 200 | $14.0K | 0.00% | −1−0.5% | Reduced |
| Baillie Gifford & Co | 200 | $15.0K | 0.00% | +200 | New |
| Assetmark, Inc | 325 | $24.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 342 | $25.0K | 0.02% | +342 | New |
| First Horizon Advisors, Inc. | 382 | $28.0K | 0.00% | +111+41.0% | Added |
| Nisa Investment Advisors, LLC | 400 | $29.0K | 0.00% | 00.0% | Unchanged |
| FORA Capital, LLC | 416 | $31.0K | 0.01% | −954−69.6% | Reduced |
| First Bank & Trust | 424 | $31.0K | 0.01% | +424 | New |
| Leonteq Securities AG | 424 | $31.1K | 0.00% | +25+6.3% | Added |
| Captrust Financial Advisors | 434 | $32.0K | 0.00% | +389+864.4% | Added |
| Penserra Capital Management LLC | 570 | $41.0K | 0.00% | +15+2.7% | Added |
| O'Shaughnessy Asset Management, LLC | 606 | $44.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 680 | $50.0K | 0.00% | −8,497−92.6% | Reduced |
| Harbour Investments, Inc. | 950 | $70.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 1,292 | $94.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,348 | $99.0K | 0.00% | −53−3.8% | Reduced |
| Simplex Trading, LLC | 1,620 | $118.0K | 0.00% | +1,620 | New |
| Advisory Services Network, LLC | 1,641 | $120.0K | 0.00% | +1,641 | New |
| Creative Financial Designs Inc | 1,648 | $121.0K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,671 | $123.0K | 0.00% | +486+41.0% | Added |
| Royal Bank of Canada | 1,775 | $130.0K | 0.00% | +235+15.3% | Added |
| NEXT Financial Group, Inc | 2,437 | $179.0K | 0.01% | +2,428+26,977.8% | Added |
| First Quadrant L P | 2,501 | $183.0K | 0.02% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 2,532 | $186.0K | 0.00% | −62,344−96.1% | Reduced |
| NinePointTwo Capital | 2,819 | $206.0K | 0.07% | +2,819 | New |
| Squarepoint Ops LLC | 2,879 | $211.0K | 0.00% | −7,072−71.1% | Reduced |
| PDT Partners, LLC | 2,943 | $216.0K | 0.01% | −7,715−72.4% | Reduced |
| Park Avenue Securities LLC | 3,038 | $223.0K | 0.00% | +3,038 | New |
| Dynamic Technology Lab Private Ltd | 3,140 | $230.0K | 0.02% | +3,140 | New |
| M&T Bank Corp | 3,186 | $234.0K | 0.00% | 00.0% | Unchanged |
| Commerce Bank | 3,205 | $235.0K | 0.00% | −10−0.3% | Reduced |
| Los Angeles Capital Management LLC | 3,282 | $241.0K | 0.00% | −27,496−89.3% | Reduced |
| US Bancorp | 3,439 | $252.0K | 0.00% | +2,829+463.8% | Added |
| Dark Forest Capital Management LP | 3,573 | $262.0K | 0.11% | +3,573 | New |
| Cherry Creek Investment Advisors, Inc. | 3,585 | $263.0K | 0.17% | +3,585 | New |
| TownSquare Capital, LLC | 3,686 | $265.0K | 0.01% | +3,686 | New |
| MML Investors Services, LLC | 3,625 | $266.0K | 0.00% | +3,625 | New |
| Cullen/Frost Bankers, Inc. | 3,805 | $279.0K | 0.01% | 00.0% | Unchanged |
| Prudential Financial Inc | 3,901 | $286.0K | 0.00% | +3,901 | New |
| Amalgamated Bank | 3,940 | $289.0K | 0.00% | +3,940 | New |
| Quantbot Technologies LP | 3,981 | $291.0K | 0.02% | +3,981 | New |
| State Board of Administration of Florida Retirement System | 4,016 | $294.0K | 0.00% | +1,042+35.0% | Added |
| Winton Group Ltd | 4,128 | $303.0K | 0.02% | +26+0.6% | 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 |
| 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 |
| 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 |
| Prelude Capital Management, LLC | 5,143 | $377.0K | 0.02% | +5,143 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,167 | $379.0K | 0.00% | +160+3.2% | Added |
| Martingale Asset Management L P | 5,305 | $390.0K | 0.00% | −100−1.9% | Reduced |
| Price T Rowe Associates Inc | 5,372 | $394.0K | 0.00% | +792+17.3% | Added |
| Arizona State Retirement System | 5,383 | $395.0K | 0.00% | +109+2.1% | Added |
| Cubist Systematic Strategies, LLC | 5,724 | $420.0K | 0.00% | −3,377−37.1% | Reduced |
| Metropolitan Life Insurance Co | 5,975 | $438.1K | 0.01% | +1,748+41.4% | Added |
| Advisor Group Holdings, Inc. | 6,072 | $444.0K | 0.00% | +3,006+98.0% | Added |
| Truist Financial Corp | 6,539 | $480.0K | 0.00% | +6,539 | New |
| Handelsbanken Fonder AB | 6,700 | $491.0K | 0.00% | +6,700 | New |
| Jump Financial, LLC | 6,800 | $499.0K | 0.05% | +6,800 | New |
| DekaBank Deutsche Girozentrale | 7,000 | $523.0K | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 7,200 | $527.0K | 0.00% | −5,500−43.3% | Reduced |
| MetLife Investment Management | 7,804 | $572.3K | 0.01% | +2,020+34.9% | Added |
| Mesirow Financial Investment Management, Inc. | 8,183 | $600.0K | 1.53% | +34+0.4% | Added |
| First Trust Advisors LP | 8,569 | $628.0K | 0.00% | +8,569 | New |
| Valmark Advisers, Inc. | 8,795 | $645.0K | 0.01% | +351+4.2% | Added |
| Qube Research & Technologies Ltd | 9,067 | $665.0K | 0.01% | +718+8.6% | Added |
| Portolan Capital Management, LLC | 9,127 | $669.0K | 0.05% | +9,127 | New |
| Pictet & Cie (Europe) SA | 9,386 | $688.0K | 0.02% | +1,266+15.6% | Added |
| Isthmus Partners, LLC | 9,577 | $702.0K | 0.12% | +9,577 | New |
| ProShare Advisors LLC | 10,031 | $736.0K | 0.00% | +2,758+37.9% | Added |
| Advisors Capital Management, LLC | 10,859 | $796.0K | 0.03% | +10,859 | New |
| Cambridge Investment Research Advisors, Inc. | 11,170 | $819.0K | 0.00% | +3,394+43.6% | Added |
| SEI Investments Co | 11,049 | $838.0K | 0.00% | −852−7.2% | Reduced |
| American International Group, Inc. | 11,938 | $875.0K | 0.00% | +3,449+40.6% | Added |
| Voya Investment Management LLC | 11,953 | $877.0K | 0.00% | +2,905+32.1% | Added |
| Manufacturers Life Insurance Company, The | 11,959 | $877.0K | 0.00% | +3,777+46.2% | Added |
| Credit Suisse AG | 11,995 | $879.0K | 0.00% | −589−4.7% | Reduced |
| Baird Financial Group, Inc. | 12,593 | $923.0K | 0.00% | +230+1.9% | Added |
| Capital Impact Advisors, LLC | 13,203 | $968.0K | 0.31% | +11,172+550.1% | Added |
| Citigroup Inc | 13,710 | $1.00M | 0.00% | +11,993+698.5% | Added |
| Chartwell Investment Partners, LLC | 14,146 | $1.04M | 0.03% | +127+0.9% | Added |
| Susquehanna International Group, LLP | 14,477 | $1.06M | 0.00% | −29,890−67.4% | Reduced |
| Deutsche Bank AG | 15,372 | $1.13M | 0.00% | +3,658+31.2% | Added |