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, Q3 2021
Institutional positions in Castle Biosciences Inc as of Sep 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
- 188
- +6 vs. Q2 2021
- Shares held
- 21.5M
- +701.3K (+3.4%) vs. Q2 2021
- Total value
- $1.42B
- −$98.8M (−6.5%) vs. Q2 2021
- New holders
- 20
- 80 more added
- Sold out
- 14
- 55 more reduced
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 2 | $0 | 0.00% | −2−50.0% | Reduced |
| Global Wealth Management Investment Advisory, Inc. | 5 | $0 | 0.00% | 00.0% | Unchanged |
| FourThought Financial, LLC | 28 | $1.00K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 10 | $1.00K | 0.00% | 00.0% | Unchanged |
| Charter Oak Capital Management, LLC | 11 | $1.00K | 0.00% | 00.0% | Unchanged |
| Berman Capital Advisors, LLC | 43 | $2.00K | 0.00% | 00.0% | Unchanged |
| Howe & Rusling Inc | 33 | $2.00K | 0.00% | +9+37.5% | Added |
| Global Retirement Partners, LLC | 50 | $3.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 78 | $5.00K | 0.00% | −23−22.8% | Reduced |
| Geneos Wealth Management Inc. | 100 | $6.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 86 | $6.00K | 0.00% | +38+79.2% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 108 | $7.00K | 0.00% | 00.0% | Unchanged |
| SOA Wealth Advisors, LLC. | 108 | $7.00K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 100 | $7.00K | 0.00% | +100 | New |
| Clearstead Advisors, LLC | 116 | $8.00K | 0.00% | +116 | New |
| Rockefeller Capital Management L.P. | 200 | $13.0K | 0.00% | 00.0% | Unchanged |
| Baillie Gifford & Co | 225 | $15.0K | 0.00% | +25+12.5% | Added |
| Assetmark, Inc | 325 | $22.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 400 | $27.0K | 0.00% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 500 | $33.0K | 0.01% | −1,148−69.7% | Reduced |
| Captrust Financial Advisors | 499 | $33.0K | 0.00% | +65+15.0% | Added |
| Harbor Investment Advisory, LLC | 542 | $36.0K | 0.00% | +542 | New |
| First Horizon Advisors, Inc. | 561 | $37.0K | 0.00% | +179+46.9% | Added |
| Penserra Capital Management LLC | 575 | $38.0K | 0.00% | +5+0.9% | Added |
| State of Wyoming | 584 | $39.0K | 0.03% | +242+70.8% | Added |
| O'Shaughnessy Asset Management, LLC | 606 | $40.0K | 0.00% | 00.0% | Unchanged |
| Amundi | 661 | $44.0K | 0.00% | +661 | New |
| Harbour Investments, Inc. | 950 | $63.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 971 | $65.0K | 0.00% | −321−24.8% | Reduced |
| First Bank & Trust | 1,033 | $69.0K | 0.03% | +609+143.6% | Added |
| UBS Group AG | 1,256 | $83.0K | 0.00% | +576+84.7% | Added |
| The PNC Financial Services Group, Inc. | 1,495 | $99.0K | 0.00% | +147+10.9% | Added |
| Ameritas Investment Partners, Inc. | 1,671 | $111.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,620 | $115.0K | 0.00% | 00.0% | Unchanged |
| First Quadrant L P | 2,501 | $166.0K | 0.02% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,679 | $178.0K | 0.00% | −1,769−39.8% | Reduced |
| STRS Ohio | 2,800 | $186.0K | 0.00% | −4,400−61.1% | Reduced |
| Royal Bank of Canada | 3,027 | $202.0K | 0.00% | +1,252+70.5% | Added |
| NEXT Financial Group, Inc | 3,152 | $210.0K | 0.02% | +715+29.3% | Added |
| M&T Bank Corp | 3,186 | $212.0K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 3,193 | $212.0K | 0.00% | +3,193 | New |
| Los Angeles Capital Management LLC | 3,282 | $218.0K | 0.00% | 00.0% | Unchanged |
| Cherry Creek Investment Advisors, Inc. | 3,585 | $238.0K | 0.16% | 00.0% | Unchanged |
| Park Avenue Securities LLC | 3,670 | $244.0K | 0.00% | +632+20.8% | Added |
| TownSquare Capital, LLC | 3,702 | $246.0K | 0.01% | +16+0.4% | Added |
| Versor Investments LP | 3,700 | $246.0K | 0.01% | +3,700 | New |
| Amalgamated Bank | 3,709 | $247.0K | 0.00% | −231−5.9% | Reduced |
| MML Investors Services, LLC | 3,712 | $247.0K | 0.00% | +87+2.4% | Added |
| Cullen/Frost Bankers, Inc. | 3,825 | $254.0K | 0.01% | +20+0.5% | Added |
| State Board of Administration of Florida Retirement System | 4,016 | $267.0K | 0.00% | 00.0% | Unchanged |
| Oppenheimer Asset Management Inc. | 4,374 | $291.0K | 0.00% | −80−1.8% | Reduced |
| Winton Group Ltd | 4,607 | $306.0K | 0.02% | +479+11.6% | Added |
| First Mercantile Trust Co | 4,650 | $309.0K | 0.04% | −350−7.0% | Reduced |
| HRT Financial LP | 4,725 | $314.0K | 0.00% | +4,725 | New |
| Commonwealth Equity Services, LLC | 5,071 | $337.0K | 0.00% | −6−0.1% | Reduced |
| Prelude Capital Management, LLC | 5,148 | $342.0K | 0.02% | +5+0.1% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,151 | $343.0K | 0.00% | −16−0.3% | Reduced |
| Level Four Advisory Services, LLC | 5,265 | $350.0K | 0.04% | +5,265 | New |
| PDT Partners, LLC | 5,351 | $356.0K | 0.03% | +2,408+81.8% | Added |
| Ergoteles LLC | 5,400 | $359.0K | 0.01% | +5,400 | New |
| Arizona State Retirement System | 5,460 | $363.0K | 0.00% | +77+1.4% | Added |
| Prudential Financial Inc | 4,856 | $375.0K | 0.00% | +955+24.5% | Added |
| Jump Financial, LLC | 5,700 | $379.0K | 0.03% | −1,100−16.2% | Reduced |
| Metropolitan Life Insurance Co | 5,975 | $397.3K | 0.01% | 00.0% | Unchanged |
| Truist Financial Corp | 6,368 | $424.0K | 0.00% | −171−2.6% | Reduced |
| Qube Research & Technologies Ltd | 6,515 | $433.0K | 0.01% | −2,552−28.1% | Reduced |
| Advisor Group Holdings, Inc. | 6,567 | $437.0K | 0.00% | +495+8.2% | Added |
| Cubist Systematic Strategies, LLC | 6,628 | $441.0K | 0.01% | +904+15.8% | Added |
| Price T Rowe Associates Inc | 6,735 | $448.0K | 0.00% | +1,363+25.4% | Added |
| DekaBank Deutsche Girozentrale | 7,000 | $454.0K | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 7,104 | $472.0K | 0.00% | +7,104 | New |
| Old Mission Capital LLC | 7,500 | $499.0K | 0.02% | +7,500 | New |
| MetLife Investment Management | 7,804 | $519.0K | 0.00% | 00.0% | Unchanged |
| Mesirow Financial Investment Management, Inc. | 7,960 | $529.0K | 1.56% | −223−2.7% | Reduced |
| ProShare Advisors LLC | 8,107 | $539.0K | 0.00% | −1,924−19.2% | Reduced |
| Handelsbanken Fonder AB | 8,200 | $545.0K | 0.00% | +1,500+22.4% | Added |
| Pictet & Cie (Europe) SA | 8,624 | $574.0K | 0.02% | −762−8.1% | Reduced |
| Legal & General Group Plc | 8,956 | $596.0K | 0.00% | +3,894+76.9% | Added |
| Valmark Advisers, Inc. | 9,024 | $600.0K | 0.01% | +229+2.6% | Added |
| SEI Investments Co | 9,374 | $624.0K | 0.00% | −1,675−15.2% | Reduced |
| Isthmus Partners, LLC | 9,562 | $636.0K | 0.12% | −15−0.2% | Reduced |
| Quantbot Technologies LP | 9,598 | $638.0K | 0.05% | +5,617+141.1% | Added |
| Dark Forest Capital Management LP | 9,727 | $647.0K | 0.23% | +6,154+172.2% | Added |
| Claybrook Capital, LLC | 10,026 | $667.0K | 0.34% | +10,026 | New |
| Manufacturers Life Insurance Company, The | 10,725 | $713.0K | 0.00% | −1,234−10.3% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 11,055 | $735.0K | 0.00% | −115−1.0% | Reduced |
| SG Americas Securities, LLC | 11,646 | $774.0K | 0.00% | +9,114+360.0% | Added |
| American International Group, Inc. | 11,662 | $776.0K | 0.00% | −276−2.3% | Reduced |
| Voya Investment Management LLC | 12,064 | $802.0K | 0.00% | +111+0.9% | Added |
| Advisory Research Inc | 12,368 | $822.0K | 0.05% | −7,384−37.4% | Reduced |
| Credit Suisse AG | 12,793 | $851.0K | 0.00% | +798+6.7% | Added |
| Martingale Asset Management L P | 13,555 | $902.0K | 0.01% | +8,250+155.5% | Added |
| US Bancorp | 13,590 | $904.0K | 0.00% | +10,151+295.2% | Added |
| Baird Financial Group, Inc. | 14,041 | $934.0K | 0.00% | +1,448+11.5% | Added |
| Advisors Capital Management, LLC | 14,112 | $938.0K | 0.03% | +3,253+30.0% | Added |
| Chartwell Investment Partners, LLC | 14,146 | $941.0K | 0.03% | 00.0% | Unchanged |
| First Trust Advisors LP | 15,549 | $1.03M | 0.00% | +6,980+81.5% | Added |
| Citigroup Inc | 15,628 | $1.04M | 0.00% | +1,918+14.0% | Added |
| Jane Street Group, LLC | 16,423 | $1.09M | 0.00% | +16,423 | New |
| Capital Impact Advisors, LLC | 16,703 | $1.11M | 0.44% | +3,500+26.5% | Added |