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 |
|---|---|---|---|---|---|
| American International Group, Inc. | 11,662 | $776.0K | 0.00% | −276−2.3% | Reduced |
| SG Americas Securities, LLC | 11,646 | $774.0K | 0.00% | +9,114+360.0% | Added |
| Cambridge Investment Research Advisors, Inc. | 11,055 | $735.0K | 0.00% | −115−1.0% | Reduced |
| Manufacturers Life Insurance Company, The | 10,725 | $713.0K | 0.00% | −1,234−10.3% | Reduced |
| Claybrook Capital, LLC | 10,026 | $667.0K | 0.34% | +10,026 | New |
| Dark Forest Capital Management LP | 9,727 | $647.0K | 0.23% | +6,154+172.2% | Added |
| Quantbot Technologies LP | 9,598 | $638.0K | 0.05% | +5,617+141.1% | Added |
| Isthmus Partners, LLC | 9,562 | $636.0K | 0.12% | −15−0.2% | Reduced |
| SEI Investments Co | 9,374 | $624.0K | 0.00% | −1,675−15.2% | Reduced |
| Valmark Advisers, Inc. | 9,024 | $600.0K | 0.01% | +229+2.6% | Added |
| Legal & General Group Plc | 8,956 | $596.0K | 0.00% | +3,894+76.9% | Added |
| Pictet & Cie (Europe) SA | 8,624 | $574.0K | 0.02% | −762−8.1% | Reduced |
| Handelsbanken Fonder AB | 8,200 | $545.0K | 0.00% | +1,500+22.4% | Added |
| ProShare Advisors LLC | 8,107 | $539.0K | 0.00% | −1,924−19.2% | Reduced |
| Mesirow Financial Investment Management, Inc. | 7,960 | $529.0K | 1.56% | −223−2.7% | Reduced |
| MetLife Investment Management | 7,804 | $519.0K | 0.00% | 00.0% | Unchanged |
| Old Mission Capital LLC | 7,500 | $499.0K | 0.02% | +7,500 | New |
| D. E. Shaw & Co., Inc. | 7,104 | $472.0K | 0.00% | +7,104 | New |
| DekaBank Deutsche Girozentrale | 7,000 | $454.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 6,735 | $448.0K | 0.00% | +1,363+25.4% | Added |
| Cubist Systematic Strategies, LLC | 6,628 | $441.0K | 0.01% | +904+15.8% | Added |
| Advisor Group Holdings, Inc. | 6,567 | $437.0K | 0.00% | +495+8.2% | Added |
| Qube Research & Technologies Ltd | 6,515 | $433.0K | 0.01% | −2,552−28.1% | Reduced |
| Truist Financial Corp | 6,368 | $424.0K | 0.00% | −171−2.6% | Reduced |
| Metropolitan Life Insurance Co | 5,975 | $397.3K | 0.01% | 00.0% | Unchanged |
| Jump Financial, LLC | 5,700 | $379.0K | 0.03% | −1,100−16.2% | Reduced |
| Prudential Financial Inc | 4,856 | $375.0K | 0.00% | +955+24.5% | Added |
| Arizona State Retirement System | 5,460 | $363.0K | 0.00% | +77+1.4% | Added |
| Ergoteles LLC | 5,400 | $359.0K | 0.01% | +5,400 | New |
| PDT Partners, LLC | 5,351 | $356.0K | 0.03% | +2,408+81.8% | Added |
| Level Four Advisory Services, LLC | 5,265 | $350.0K | 0.04% | +5,265 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,151 | $343.0K | 0.00% | −16−0.3% | Reduced |
| Prelude Capital Management, LLC | 5,148 | $342.0K | 0.02% | +5+0.1% | Added |
| Commonwealth Equity Services, LLC | 5,071 | $337.0K | 0.00% | −6−0.1% | Reduced |
| HRT Financial LP | 4,725 | $314.0K | 0.00% | +4,725 | New |
| First Mercantile Trust Co | 4,650 | $309.0K | 0.04% | −350−7.0% | Reduced |
| Winton Group Ltd | 4,607 | $306.0K | 0.02% | +479+11.6% | Added |
| Oppenheimer Asset Management Inc. | 4,374 | $291.0K | 0.00% | −80−1.8% | Reduced |
| State Board of Administration of Florida Retirement System | 4,016 | $267.0K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 3,825 | $254.0K | 0.01% | +20+0.5% | Added |
| 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 |
| 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 |
| Park Avenue Securities LLC | 3,670 | $244.0K | 0.00% | +632+20.8% | Added |
| Cherry Creek Investment Advisors, Inc. | 3,585 | $238.0K | 0.16% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 3,282 | $218.0K | 0.00% | 00.0% | Unchanged |
| 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 |
| NEXT Financial Group, Inc | 3,152 | $210.0K | 0.02% | +715+29.3% | Added |
| Royal Bank of Canada | 3,027 | $202.0K | 0.00% | +1,252+70.5% | Added |
| STRS Ohio | 2,800 | $186.0K | 0.00% | −4,400−61.1% | Reduced |
| Tower Research Capital LLC (TRC) | 2,679 | $178.0K | 0.00% | −1,769−39.8% | Reduced |
| First Quadrant L P | 2,501 | $166.0K | 0.02% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,620 | $115.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,671 | $111.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,495 | $99.0K | 0.00% | +147+10.9% | Added |
| UBS Group AG | 1,256 | $83.0K | 0.00% | +576+84.7% | Added |
| First Bank & Trust | 1,033 | $69.0K | 0.03% | +609+143.6% | Added |
| Great West Life Assurance Co | 971 | $65.0K | 0.00% | −321−24.8% | Reduced |
| Harbour Investments, Inc. | 950 | $63.0K | 0.00% | 00.0% | Unchanged |
| Amundi | 661 | $44.0K | 0.00% | +661 | New |
| O'Shaughnessy Asset Management, LLC | 606 | $40.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 584 | $39.0K | 0.03% | +242+70.8% | Added |
| Penserra Capital Management LLC | 575 | $38.0K | 0.00% | +5+0.9% | Added |
| First Horizon Advisors, Inc. | 561 | $37.0K | 0.00% | +179+46.9% | Added |
| Harbor Investment Advisory, LLC | 542 | $36.0K | 0.00% | +542 | New |
| 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 |
| Nisa Investment Advisors, LLC | 400 | $27.0K | 0.00% | 00.0% | Unchanged |
| Assetmark, Inc | 325 | $22.0K | 0.00% | 00.0% | Unchanged |
| Baillie Gifford & Co | 225 | $15.0K | 0.00% | +25+12.5% | Added |
| Rockefeller Capital Management L.P. | 200 | $13.0K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 116 | $8.00K | 0.00% | +116 | New |
| 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 |
| 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 |
| TCI Wealth Advisors, Inc. | 78 | $5.00K | 0.00% | −23−22.8% | Reduced |
| Global Retirement Partners, LLC | 50 | $3.00K | 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 |
| 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 |
| FMR LLC | 2 | $0 | 0.00% | −2−50.0% | Reduced |
| Global Wealth Management Investment Advisory, Inc. | 5 | $0 | 0.00% | 00.0% | Unchanged |
| Axiom Investors LLC | 0 | $0 | 0.00% | −31,310−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −14,477−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −9,127−100.0% | Sold out |
| Pentwater Capital Management LP | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Commerce Bank | 0 | $0 | 0.00% | −3,205−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −3,140−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −2,879−100.0% | Sold out |
| NinePointTwo Capital | 0 | $0 | 0.00% | −2,819−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1,641−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −424−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −416−100.0% | Sold out |
| Wagner Wealth Management, LLC | 0 | $0 | 0.00% | −85−100.0% | Sold out |