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 |
|---|---|---|---|---|---|
| United Capital Financial Advisers, LLC | 17,440 | $1.16M | 0.01% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 17,980 | $1.20M | 0.02% | +17,980 | New |
| Voloridge Investment Management, LLC | 18,169 | $1.21M | 0.01% | +18,169 | New |
| Signaturefd, LLC | 19,383 | $1.29M | 0.04% | +10+0.1% | Added |
| Bank of America Corp | 20,974 | $1.39M | 0.00% | −1,729−7.6% | Reduced |
| Rhumbline Advisers | 21,255 | $1.41M | 0.00% | +832+4.1% | Added |
| Covenant Partners, LLC | 21,279 | $1.42M | 0.56% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 21,300 | $1.42M | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 21,769 | $1.45M | 0.06% | −22−0.1% | Reduced |
| JPMorgan Chase & Co | 22,093 | $1.47M | 0.00% | +4,899+28.5% | Added |
| Knights of Columbus Asset Advisors LLC | 22,202 | $1.48M | 0.13% | +118+0.5% | Added |
| Deutsche Bank AG | 22,834 | $1.52M | 0.00% | +7,462+48.5% | Added |
| EMC Capital Management | 24,847 | $1.55M | 0.86% | +2,154+9.5% | Added |
| Bridgewater Associates, LP | 24,470 | $1.63M | 0.01% | −1,508−5.8% | Reduced |
| Alliancebernstein L.P. | 24,700 | $1.64M | 0.00% | −600−2.4% | Reduced |
| Banque Pictet & Cie SA | 26,003 | $1.73M | 0.02% | +2,953+12.8% | Added |
| Oberweis Asset Management Inc | 26,260 | $1.75M | 0.36% | −47,800−64.5% | Reduced |
| California State Teachers Retirement System | 27,906 | $1.86M | 0.00% | −1,468−5.0% | Reduced |
| Rice Hall James & Associates, LLC | 28,744 | $1.91M | 0.07% | −5,593−16.3% | Reduced |
| Envestnet Asset Management Inc | 32,998 | $2.19M | 0.00% | +2,576+8.5% | Added |
| Parametric Portfolio Associates LLC | 33,110 | $2.20M | 0.00% | −2,286−6.5% | Reduced |
| Perkins Capital Management Inc | 33,150 | $2.20M | 1.36% | 00.0% | Unchanged |
| Swedbank AB | 35,000 | $2.33M | 0.00% | −5,000−12.5% | Reduced |
| Lisanti Capital Growth, LLC | 35,855 | $2.38M | 0.35% | −71,795−66.7% | Reduced |
| Polar Capital Holdings Plc | 36,878 | $2.45M | 0.01% | +8,117+28.2% | Added |
| Swiss National Bank | 44,300 | $2.95M | 0.00% | +600+1.4% | Added |
| Schonfeld Strategic Advisors LLC | 46,136 | $3.07M | 0.03% | +18,723+68.3% | Added |
| New York State Common Retirement Fund | 47,339 | $3.15M | 0.00% | +2,199+4.9% | Added |
| Bank of Montreal | 44,818 | $3.30M | 0.00% | −1,700−3.7% | Reduced |
| ArrowMark Colorado Holdings LLC | 51,233 | $3.41M | 0.03% | +389+0.8% | Added |
| Dimensional Fund Advisors LP | 54,317 | $3.61M | 0.00% | +54,317 | New |
| Brinker Capital Investments, LLC | 50,161 | $3.68M | 0.06% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 56,254 | $3.74M | 0.01% | 00.0% | Unchanged |
| Madison Asset Management, LLC | 60,458 | $4.02M | 0.06% | −10,979−15.4% | Reduced |
| Morgan Stanley | 69,822 | $4.64M | 0.00% | +22,343+47.1% | Added |
| Putnam Investments LLC | 71,319 | $4.74M | 0.01% | −170.0% | Reduced |
| Segall Bryant & Hamill, LLC | 71,375 | $4.75M | 0.05% | +1,935+2.8% | Added |
| Altium Capital Management LP | 72,500 | $4.82M | 1.29% | +3,500+5.1% | Added |
| Two Sigma Investments, LP | 72,966 | $4.85M | 0.01% | +30,028+69.9% | Added |
| Two Sigma Advisers, LP | 79,800 | $5.31M | 0.01% | +29,000+57.1% | Added |
| Premier Fund Managers Ltd | 82,054 | $5.32M | 0.17% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 80,293 | $5.34M | 0.01% | +80,293 | New |
| Bank of New York Mellon Corp | 88,498 | $5.88M | 0.00% | +7,143+8.8% | Added |
| Russell Investments Group, Ltd. | 88,774 | $5.90M | 0.01% | +10,877+14.0% | Added |
| Nuveen Asset Management, LLC | 76,512 | $5.92M | 0.00% | −5,474−6.7% | Reduced |
| King Luther Capital Management Corp | 89,090 | $5.92M | 0.03% | +4,886+5.8% | Added |
| Ameriprise Financial Inc | 92,287 | $6.14M | 0.00% | −1,005−1.1% | Reduced |
| Polar Asset Management Partners Inc. | 95,504 | $6.35M | 0.08% | −18,400−16.2% | Reduced |
| Essex Investment Management Co LLC | 95,874 | $6.38M | 0.78% | −847−0.9% | Reduced |
| M&G Investment Management Ltd | 95,351 | $6.39M | 0.03% | +3,673+4.0% | Added |
| DF Dent & Co Inc | 100,560 | $6.69M | 0.07% | +6,360+6.8% | Added |
| Point72 Asset Management, L.P. | 103,179 | $6.86M | 0.03% | +103,179 | New |
| Calamos Advisors LLC | 131,984 | $8.78M | 0.04% | +17,377+15.2% | Added |
| Trustcore Financial Services, LLC | 142,866 | $9.50M | 0.94% | −9,608−6.3% | Reduced |
| Castleark Management LLC | 147,867 | $9.83M | 0.38% | −7,570−4.9% | Reduced |
| CastleArk Alternatives, LLC | 147,867 | $9.83M | 0.38% | +147,867 | New |
| Intrinsic Edge Capital Management LLC | 147,895 | $9.84M | 0.68% | −22,070−13.0% | Reduced |
| Charles Schwab Investment Management Inc | 158,423 | $10.5M | 0.00% | +25,170+18.9% | Added |
| Lord, Abbett & Co. LLC | 160,360 | $10.7M | 0.03% | +62,260+63.5% | Added |
| Monarch Partners Asset Management LLC | 162,468 | $10.8M | 1.58% | +8,581+5.6% | Added |
| Principal Financial Group Inc | 169,816 | $11.3M | 0.01% | +989+0.6% | Added |
| Redwood Investments, LLC | 175,661 | $11.7M | 0.98% | −10,830−5.8% | Reduced |
| UBS Asset Management Americas Inc | 178,655 | $11.9M | 0.00% | −8,152−4.4% | Reduced |
| Northern Trust Corp | 223,595 | $14.9M | 0.00% | +792+0.4% | Added |
| Goldman Sachs Group Inc | 227,514 | $15.1M | 0.00% | −107,101−32.0% | Reduced |
| Citadel Advisors LLC | 230,439 | $15.3M | 0.02% | +170,434+284.0% | Added |
| Grandeur Peak Global Advisors, LLC | 231,296 | $15.4M | 0.73% | +16,078+7.5% | Added |
| Next Century Growth Investors LLC | 275,442 | $18.3M | 1.59% | −6,353−2.3% | Reduced |
| Victory Capital Management Inc | 319,659 | $21.3M | 0.02% | +11,402+3.7% | Added |
| Kornitzer Capital Management Inc | 343,817 | $22.9M | 0.35% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 358,200 | $23.8M | 0.28% | −21,293−5.6% | Reduced |
| Geode Capital Management, LLC | 365,368 | $24.3M | 0.00% | +25,293+7.4% | Added |
| Nikko Asset Management Americas, Inc. | 527,922 | $26.4M | 0.11% | +82,810+18.6% | Added |
| Millennium Management LLC | 403,359 | $26.8M | 0.04% | +403,359 | New |
| GW&K Investment Management, LLC | 420,374 | $28.0M | 0.25% | −2,393−0.6% | Reduced |
| Pembroke Management, LTD | 433,679 | $28.8M | 2.17% | −17,215−3.8% | Reduced |
| State Street Corp | 434,837 | $28.9M | 0.00% | +3,939+0.9% | Added |
| Granahan Investment Management Inc | 450,980 | $30.0M | 0.57% | +6,351+1.4% | Added |
| Zevenbergen Capital Investments LLC | 524,873 | $34.9M | 0.66% | −18,053−3.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 527,922 | $35.1M | 0.02% | +82,810+18.6% | Added |
| Wells Fargo & Company | 570,535 | $37.9M | 0.01% | +62,997+12.4% | Added |
| RTW Investments, LP | 599,009 | $39.8M | 0.60% | −200,000−25.0% | Reduced |
| Macquarie Group Ltd | 669,061 | $44.5M | 0.04% | +178,844+36.5% | Added |
| Invesco Ltd. | 1,031,658 | $68.6M | 0.02% | −106,594−9.4% | Reduced |
| Vanguard Group Inc | 1,166,188 | $77.6M | 0.00% | +38,996+3.5% | Added |
| BlackRock Inc. | 1,756,008 | $116.8M | 0.00% | +64,010+3.8% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 2,057,867 | $136.8M | 0.33% | −467,746−18.5% | Reduced |
| Wasatch Advisors Inc | 2,493,702 | $165.8M | 0.67% | −11,196−0.4% | Reduced |
| 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 |