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, Q4 2021
Institutional positions in Castle Biosciences Inc as of Dec 31, 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
- 159
- −27 vs. Q3 2021
- Shares held
- 21.5M
- −44.4K (−0.2%) vs. Q3 2021
- Total value
- $918.6M
- −$503.7M (−35.4%) vs. Q3 2021
- New holders
- 21
- 64 more added
- Sold out
- 48
- 49 more reduced
2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 9,944 | $426.0K | 0.00% | +3,209+47.6% | Added |
| Pictet & Cie (Europe) SA | 9,689 | $415.0K | 0.01% | +1,065+12.3% | Added |
| AlphaCentric Advisors LLC | 9,500 | $407.0K | 0.12% | +9,500 | New |
| Valmark Advisers, Inc. | 9,284 | $398.0K | 0.01% | +260+2.9% | Added |
| Legal & General Group Plc | 8,984 | $385.0K | 0.00% | +28+0.3% | Added |
| Dynamic Technology Lab Private Ltd | 8,710 | $373.0K | 0.04% | +8,710 | New |
| SG Americas Securities, LLC | 8,227 | $353.0K | 0.00% | −3,419−29.4% | Reduced |
| ProShare Advisors LLC | 8,218 | $352.0K | 0.00% | +111+1.4% | Added |
| Handelsbanken Fonder AB | 8,000 | $343.0K | 0.00% | −200−2.4% | Reduced |
| Mesirow Financial Investment Management, Inc. | 7,960 | $341.0K | 0.98% | 00.0% | Unchanged |
| First Trust Advisors LP | 7,936 | $340.0K | 0.00% | −7,613−49.0% | Reduced |
| MetLife Investment Management | 7,804 | $334.6K | 0.00% | 00.0% | Unchanged |
| First Republic Investment Management, Inc. | 7,629 | $327.0K | 0.00% | +7,629 | New |
| Advisor Group Holdings, Inc. | 7,245 | $310.0K | 0.00% | +678+10.3% | Added |
| NinePointTwo Capital | 6,965 | $298.0K | 0.10% | +6,965 | New |
| DekaBank Deutsche Girozentrale | 7,200 | $296.0K | 0.00% | +200+2.9% | Added |
| Aristides Capital LLC | 6,910 | $296.0K | 0.17% | +6,910 | New |
| Truist Financial Corp | 6,131 | $262.0K | 0.00% | −237−3.7% | Reduced |
| Metropolitan Life Insurance Co | 5,975 | $256.1K | 0.00% | 00.0% | Unchanged |
| Prudential Financial Inc | 4,271 | $256.0K | 0.00% | −585−12.0% | Reduced |
| Prelude Capital Management, LLC | 5,855 | $251.0K | 0.01% | +707+13.7% | Added |
| Cullen/Frost Bankers, Inc. | 5,430 | $233.0K | 0.00% | +1,605+42.0% | Added |
| Arizona State Retirement System | 5,419 | $232.0K | 0.00% | −41−0.8% | Reduced |
| Commerce Bank | 5,260 | $226.0K | 0.00% | +5,260 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,076 | $218.0K | 0.00% | −75−1.5% | Reduced |
| Royal Bank of Canada | 5,004 | $214.0K | 0.00% | +1,977+65.3% | Added |
| First Bank & Trust | 3,377 | $145.0K | 0.06% | +2,344+226.9% | Added |
| Quantbot Technologies LP | 3,081 | $132.0K | 0.01% | −6,517−67.9% | Reduced |
| STRS Ohio | 2,800 | $120.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 2,455 | $105.0K | 0.00% | +960+64.2% | Added |
| Amundi | 2,350 | $87.0K | 0.00% | +1,689+255.5% | Added |
| Ameritas Investment Partners, Inc. | 1,671 | $72.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 971 | $41.0K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 890 | $38.0K | 0.00% | +890 | New |
| NEXT Financial Group, Inc | 557 | $24.0K | 0.00% | −2,595−82.3% | Reduced |
| State of Wyoming | 566 | $24.0K | 0.01% | −18−3.1% | Reduced |
| Harbor Investment Advisory, LLC | 542 | $23.0K | 0.00% | 00.0% | Unchanged |
| Creative Financial Designs Inc | 500 | $21.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 443 | $19.0K | 0.00% | −2,236−83.5% | Reduced |
| First Horizon Advisors, Inc. | 460 | $19.0K | 0.00% | −101−18.0% | Reduced |
| Captrust Financial Advisors | 432 | $19.0K | 0.00% | −67−13.4% | Reduced |
| Baillie Gifford & Co | 225 | $10.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 200 | $9.00K | 0.00% | −200−50.0% | Reduced |
| Rockefeller Capital Management L.P. | 200 | $8.00K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 177 | $7.00K | 0.00% | −1,443−89.1% | Reduced |
| TCI Wealth Advisors, Inc. | 145 | $6.00K | 0.00% | +67+85.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 108 | $5.00K | 0.00% | 00.0% | Unchanged |
| Confluence Wealth Services, Inc. | 127 | $5.00K | 0.00% | +127 | New |
| Dark Forest Capital Management LP | 87 | $4.00K | 0.00% | −9,640−99.1% | Reduced |
| Assetmark, Inc | 100 | $4.00K | 0.00% | −225−69.2% | Reduced |
| Daiwa Securities Group Inc. | 86 | $4.00K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 50 | $2.00K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 42 | $2.00K | 0.00% | +42 | New |
| Howe & Rusling Inc | 33 | $1.00K | 0.00% | 00.0% | Unchanged |
| FourThought Financial, LLC | 28 | $1.00K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 12 | $1.00K | 0.00% | +12 | New |
| Missouri Trust & Investment Co | 19 | $1.00K | 0.00% | +19 | New |
| CWM, LLC | 2 | $0 | 0.00% | +2 | New |
| Covestor Ltd | 7 | $0 | 0.00% | +7 | New |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −358,200−100.0% | Sold out |
| Intrinsic Edge Capital Management LLC | 0 | $0 | 0.00% | −147,895−100.0% | Sold out |
| Castleark Management LLC | 0 | $0 | 0.00% | −147,867−100.0% | Sold out |
| CastleArk Alternatives, LLC | 0 | $0 | 0.00% | −147,867−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −131,984−100.0% | Sold out |
| M&G Investment Management Ltd | 0 | $0 | 0.00% | −95,351−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −95,504−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −88,774−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −80,293−100.0% | Sold out |
| Altium Capital Management LP | 0 | $0 | 0.00% | −72,500−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −44,818−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −35,855−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −18,169−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −16,423−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −13,555−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −12,368−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −9,374−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −7,500−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −7,104−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −5,400−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −5,351−100.0% | Sold out |
| Level Four Advisory Services, LLC | 0 | $0 | 0.00% | −5,265−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −5,071−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −4,725−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −4,607−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −4,374−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −4,016−100.0% | Sold out |
| MML Investors Services, LLC | 0 | $0 | 0.00% | −3,712−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −3,709−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −3,700−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −3,702−100.0% | Sold out |
| Park Avenue Securities LLC | 0 | $0 | 0.00% | −3,670−100.0% | Sold out |
| Cherry Creek Investment Advisors, Inc. | 0 | $0 | 0.00% | −3,585−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −3,282−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −3,186−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −3,193−100.0% | Sold out |
| First Quadrant L P | 0 | $0 | 0.00% | −2,501−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −950−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −606−100.0% | Sold out |
| Penserra Capital Management LLC | 0 | $0 | 0.00% | −575−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −116−100.0% | Sold out |