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 |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 2,493,702 | $165.8M | 0.67% | −11,196−0.4% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 2,057,867 | $136.8M | 0.33% | −467,746−18.5% | Reduced |
| BlackRock Inc. | 1,756,008 | $116.8M | 0.00% | +64,010+3.8% | Added |
| Vanguard Group Inc | 1,166,188 | $77.6M | 0.00% | +38,996+3.5% | Added |
| Invesco Ltd. | 1,031,658 | $68.6M | 0.02% | −106,594−9.4% | Reduced |
| Macquarie Group Ltd | 669,061 | $44.5M | 0.04% | +178,844+36.5% | Added |
| RTW Investments, LP | 599,009 | $39.8M | 0.60% | −200,000−25.0% | Reduced |
| Wells Fargo & Company | 570,535 | $37.9M | 0.01% | +62,997+12.4% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 527,922 | $35.1M | 0.02% | +82,810+18.6% | Added |
| Zevenbergen Capital Investments LLC | 524,873 | $34.9M | 0.66% | −18,053−3.3% | Reduced |
| Granahan Investment Management Inc | 450,980 | $30.0M | 0.57% | +6,351+1.4% | Added |
| State Street Corp | 434,837 | $28.9M | 0.00% | +3,939+0.9% | Added |
| Pembroke Management, LTD | 433,679 | $28.8M | 2.17% | −17,215−3.8% | Reduced |
| GW&K Investment Management, LLC | 420,374 | $28.0M | 0.25% | −2,393−0.6% | Reduced |
| Millennium Management LLC | 403,359 | $26.8M | 0.04% | +403,359 | New |
| Nikko Asset Management Americas, Inc. | 527,922 | $26.4M | 0.11% | +82,810+18.6% | Added |
| Geode Capital Management, LLC | 365,368 | $24.3M | 0.00% | +25,293+7.4% | Added |
| Driehaus Capital Management LLC | 358,200 | $23.8M | 0.28% | −21,293−5.6% | Reduced |
| Kornitzer Capital Management Inc | 343,817 | $22.9M | 0.35% | 00.0% | Unchanged |
| Victory Capital Management Inc | 319,659 | $21.3M | 0.02% | +11,402+3.7% | Added |
| Next Century Growth Investors LLC | 275,442 | $18.3M | 1.59% | −6,353−2.3% | Reduced |
| Grandeur Peak Global Advisors, LLC | 231,296 | $15.4M | 0.73% | +16,078+7.5% | Added |
| Citadel Advisors LLC | 230,439 | $15.3M | 0.02% | +170,434+284.0% | Added |
| Goldman Sachs Group Inc | 227,514 | $15.1M | 0.00% | −107,101−32.0% | Reduced |
| Northern Trust Corp | 223,595 | $14.9M | 0.00% | +792+0.4% | Added |
| UBS Asset Management Americas Inc | 178,655 | $11.9M | 0.00% | −8,152−4.4% | Reduced |
| Redwood Investments, LLC | 175,661 | $11.7M | 0.98% | −10,830−5.8% | Reduced |
| Principal Financial Group Inc | 169,816 | $11.3M | 0.01% | +989+0.6% | Added |
| Monarch Partners Asset Management LLC | 162,468 | $10.8M | 1.58% | +8,581+5.6% | Added |
| Lord, Abbett & Co. LLC | 160,360 | $10.7M | 0.03% | +62,260+63.5% | Added |
| Charles Schwab Investment Management Inc | 158,423 | $10.5M | 0.00% | +25,170+18.9% | Added |
| Intrinsic Edge Capital Management LLC | 147,895 | $9.84M | 0.68% | −22,070−13.0% | 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 |
| Trustcore Financial Services, LLC | 142,866 | $9.50M | 0.94% | −9,608−6.3% | Reduced |
| Calamos Advisors LLC | 131,984 | $8.78M | 0.04% | +17,377+15.2% | Added |
| Point72 Asset Management, L.P. | 103,179 | $6.86M | 0.03% | +103,179 | New |
| DF Dent & Co Inc | 100,560 | $6.69M | 0.07% | +6,360+6.8% | Added |
| M&G Investment Management Ltd | 95,351 | $6.39M | 0.03% | +3,673+4.0% | Added |
| Essex Investment Management Co LLC | 95,874 | $6.38M | 0.78% | −847−0.9% | Reduced |
| Polar Asset Management Partners Inc. | 95,504 | $6.35M | 0.08% | −18,400−16.2% | Reduced |
| Ameriprise Financial Inc | 92,287 | $6.14M | 0.00% | −1,005−1.1% | Reduced |
| King Luther Capital Management Corp | 89,090 | $5.92M | 0.03% | +4,886+5.8% | Added |
| Nuveen Asset Management, LLC | 76,512 | $5.92M | 0.00% | −5,474−6.7% | Reduced |
| Russell Investments Group, Ltd. | 88,774 | $5.90M | 0.01% | +10,877+14.0% | Added |
| Bank of New York Mellon Corp | 88,498 | $5.88M | 0.00% | +7,143+8.8% | Added |
| Fred Alger Management, LLC | 80,293 | $5.34M | 0.01% | +80,293 | New |
| Premier Fund Managers Ltd | 82,054 | $5.32M | 0.17% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 79,800 | $5.31M | 0.01% | +29,000+57.1% | Added |
| Two Sigma Investments, LP | 72,966 | $4.85M | 0.01% | +30,028+69.9% | Added |
| Altium Capital Management LP | 72,500 | $4.82M | 1.29% | +3,500+5.1% | Added |
| Segall Bryant & Hamill, LLC | 71,375 | $4.75M | 0.05% | +1,935+2.8% | Added |
| Putnam Investments LLC | 71,319 | $4.74M | 0.01% | −170.0% | Reduced |
| Morgan Stanley | 69,822 | $4.64M | 0.00% | +22,343+47.1% | Added |
| Madison Asset Management, LLC | 60,458 | $4.02M | 0.06% | −10,979−15.4% | Reduced |
| Public Employees Retirement System of Ohio | 56,254 | $3.74M | 0.01% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 50,161 | $3.68M | 0.06% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 54,317 | $3.61M | 0.00% | +54,317 | New |
| ArrowMark Colorado Holdings LLC | 51,233 | $3.41M | 0.03% | +389+0.8% | Added |
| Bank of Montreal | 44,818 | $3.30M | 0.00% | −1,700−3.7% | Reduced |
| New York State Common Retirement Fund | 47,339 | $3.15M | 0.00% | +2,199+4.9% | Added |
| Schonfeld Strategic Advisors LLC | 46,136 | $3.07M | 0.03% | +18,723+68.3% | Added |
| Swiss National Bank | 44,300 | $2.95M | 0.00% | +600+1.4% | Added |
| Polar Capital Holdings Plc | 36,878 | $2.45M | 0.01% | +8,117+28.2% | Added |
| Lisanti Capital Growth, LLC | 35,855 | $2.38M | 0.35% | −71,795−66.7% | Reduced |
| Swedbank AB | 35,000 | $2.33M | 0.00% | −5,000−12.5% | Reduced |
| Perkins Capital Management Inc | 33,150 | $2.20M | 1.36% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 33,110 | $2.20M | 0.00% | −2,286−6.5% | Reduced |
| Envestnet Asset Management Inc | 32,998 | $2.19M | 0.00% | +2,576+8.5% | Added |
| Rice Hall James & Associates, LLC | 28,744 | $1.91M | 0.07% | −5,593−16.3% | Reduced |
| California State Teachers Retirement System | 27,906 | $1.86M | 0.00% | −1,468−5.0% | Reduced |
| Oberweis Asset Management Inc | 26,260 | $1.75M | 0.36% | −47,800−64.5% | Reduced |
| Banque Pictet & Cie SA | 26,003 | $1.73M | 0.02% | +2,953+12.8% | Added |
| Alliancebernstein L.P. | 24,700 | $1.64M | 0.00% | −600−2.4% | Reduced |
| Bridgewater Associates, LP | 24,470 | $1.63M | 0.01% | −1,508−5.8% | Reduced |
| EMC Capital Management | 24,847 | $1.55M | 0.86% | +2,154+9.5% | Added |
| Deutsche Bank AG | 22,834 | $1.52M | 0.00% | +7,462+48.5% | Added |
| Knights of Columbus Asset Advisors LLC | 22,202 | $1.48M | 0.13% | +118+0.5% | Added |
| JPMorgan Chase & Co | 22,093 | $1.47M | 0.00% | +4,899+28.5% | Added |
| Parallel Advisors, LLC | 21,769 | $1.45M | 0.06% | −22−0.1% | Reduced |
| State of Wisconsin Investment Board | 21,300 | $1.42M | 0.00% | 00.0% | Unchanged |
| Covenant Partners, LLC | 21,279 | $1.42M | 0.56% | 00.0% | Unchanged |
| Rhumbline Advisers | 21,255 | $1.41M | 0.00% | +832+4.1% | Added |
| Bank of America Corp | 20,974 | $1.39M | 0.00% | −1,729−7.6% | Reduced |
| Signaturefd, LLC | 19,383 | $1.29M | 0.04% | +10+0.1% | Added |
| Voloridge Investment Management, LLC | 18,169 | $1.21M | 0.01% | +18,169 | New |
| Susquehanna Fundamental Investments, LLC | 17,980 | $1.20M | 0.02% | +17,980 | New |
| United Capital Financial Advisers, LLC | 17,440 | $1.16M | 0.01% | 00.0% | Unchanged |
| Capital Impact Advisors, LLC | 16,703 | $1.11M | 0.44% | +3,500+26.5% | Added |
| Jane Street Group, LLC | 16,423 | $1.09M | 0.00% | +16,423 | New |
| Citigroup Inc | 15,628 | $1.04M | 0.00% | +1,918+14.0% | Added |
| First Trust Advisors LP | 15,549 | $1.03M | 0.00% | +6,980+81.5% | Added |
| Chartwell Investment Partners, LLC | 14,146 | $941.0K | 0.03% | 00.0% | Unchanged |
| Advisors Capital Management, LLC | 14,112 | $938.0K | 0.03% | +3,253+30.0% | Added |
| Baird Financial Group, Inc. | 14,041 | $934.0K | 0.00% | +1,448+11.5% | Added |
| US Bancorp | 13,590 | $904.0K | 0.00% | +10,151+295.2% | Added |
| Martingale Asset Management L P | 13,555 | $902.0K | 0.01% | +8,250+155.5% | Added |
| Credit Suisse AG | 12,793 | $851.0K | 0.00% | +798+6.7% | Added |
| Advisory Research Inc | 12,368 | $822.0K | 0.05% | −7,384−37.4% | Reduced |
| Voya Investment Management LLC | 12,064 | $802.0K | 0.00% | +111+0.9% | Added |