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, Q1 2025
Institutional positions in Castle Biosciences Inc as of Mar 31, 2025. 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
- 180
- −14 vs. Q4 2024
- Shares held
- 25.9M
- −168.1K (−0.6%) vs. Q4 2024
- Total value
- $516.3M
- −$177.7M (−25.6%) vs. Q4 2024
- New holders
- 30
- 76 more added
- Sold out
- 44
- 54 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Verition Fund Management LLC | 30,671 | $614.0K | 0.00% | +21,623+239.0% | Added |
| Jane Street Group, LLC | 30,676 | $614.1K | 0.00% | −28,707−48.3% | Reduced |
| Invesco Ltd. | 32,251 | $645.7K | 0.00% | +4,717+17.1% | Added |
| Alliancebernstein L.P. | 33,370 | $668.1K | 0.00% | 00.0% | Unchanged |
| Perkins Capital Management Inc | 33,965 | $680.0K | 0.72% | −200−0.6% | Reduced |
| Los Angeles Capital Management LLC | 33,970 | $680.1K | 0.00% | +33,970 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 35,800 | $716.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 35,901 | $718.7K | 0.00% | +18,467+105.9% | Added |
| ABG Innovation Capital Partners III GP Ltd | 36,747 | $735.7K | 91.94% | 00.0% | Unchanged |
| Nebula Research & Development LLC | 37,617 | $753.1K | 0.07% | +10,943+41.0% | Added |
| Rhumbline Advisers | 39,186 | $784.5K | 0.00% | −706−1.8% | Reduced |
| Tritonpoint Wealth, LLC | 41,637 | $833.6K | 0.08% | −5,000−10.7% | Reduced |
| Barclays PLC | 42,815 | $857.2K | 0.00% | −6,198−12.6% | Reduced |
| BNP Paribas Arbitrage, SA | 45,230 | $905.5K | 0.00% | −203,898−81.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 45,849 | $917.9K | 0.07% | −471−1.0% | Reduced |
| UBS Group AG | 48,759 | $976.2K | 0.00% | −763,841−94.0% | Reduced |
| Dark Forest Capital Management LP | 51,855 | $1.04M | 0.05% | +51,855 | New |
| Engineers Gate Manager LP | 52,923 | $1.06M | 0.02% | +34,201+182.7% | Added |
| Swiss National Bank | 54,300 | $1.09M | 0.00% | +3,000+5.8% | Added |
| Jackson Creek Investment Advisors LLC | 57,094 | $1.14M | 0.36% | +57,094 | New |
| Schonfeld Strategic Advisors LLC | 59,671 | $1.19M | 0.01% | +44,371+290.0% | Added |
| Citigroup Inc | 62,701 | $1.26M | 0.00% | +21,374+51.7% | Added |
| Deutsche Bank AG | 65,537 | $1.31M | 0.00% | −2,130−3.1% | Reduced |
| Gsa Capital Partners LLP | 67,143 | $1.34M | 0.12% | −3,658−5.2% | Reduced |
| UBS Asset Management Americas Inc | 68,031 | $1.36M | 0.00% | +2,013+3.0% | Added |
| Graham Capital Management, L.P. | 68,385 | $1.37M | 0.04% | +26,709+64.1% | Added |
| Two Sigma Advisers, LP | 69,200 | $1.39M | 0.00% | +57,700+501.7% | Added |
| Envestnet Asset Management Inc | 69,771 | $1.40M | 0.00% | −3,573−4.9% | Reduced |
| SEI Investments Co | 73,059 | $1.46M | 0.00% | +31,568+76.1% | Added |
| American Century Companies Inc | 74,067 | $1.48M | 0.00% | +4,892+7.1% | Added |
| ExodusPoint Capital Management, LP | 77,563 | $1.55M | 0.02% | +66,079+575.4% | Added |
| Brinker Capital Investments, LLC | 78,409 | $1.57M | 0.02% | +10,093+14.8% | Added |
| Orion Portfolio Solutions, LLC | 78,409 | $1.57M | 0.02% | +10,093+14.8% | Added |
| Bank of New York Mellon Corp | 84,041 | $1.68M | 0.00% | −418−0.5% | Reduced |
| Birchview Capital, LP | 88,404 | $1.77M | 1.54% | +10,404+13.3% | Added |
| Squarepoint Ops LLC | 97,360 | $1.95M | 0.00% | +80,043+462.2% | Added |
| Franklin Resources Inc | 99,086 | $1.98M | 0.00% | +25,449+34.6% | Added |
| AQR Capital Management LLC | 137,022 | $2.74M | 0.00% | +115,907+548.9% | Added |
| Two Sigma Investments, LP | 139,785 | $2.80M | 0.01% | +139,785 | New |
| Algert Global LLC | 144,311 | $2.89M | 0.07% | −5,180−3.5% | Reduced |
| New York State Common Retirement Fund | 163,159 | $3.27M | 0.00% | −25,942−13.7% | Reduced |
| Shelton Capital Management | 164,008 | $3.28M | 0.08% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 171,382 | $3.43M | 0.03% | +101,306+144.6% | Added |
| Goldman Sachs Group Inc | 175,325 | $3.51M | 0.00% | −257,425−59.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 176,889 | $3.54M | 0.02% | +8,176+4.8% | Added |
| D. E. Shaw & Co., Inc. | 189,177 | $3.79M | 0.00% | +98,614+108.9% | Added |
| Silvercrest Asset Management Group LLC | 198,802 | $3.98M | 0.03% | −1,148−0.6% | Reduced |
| Advisors Capital Management, LLC | 201,687 | $4.04M | 0.06% | +22,752+12.7% | Added |
| Morgan Stanley | 211,793 | $4.24M | 0.00% | −94,884−30.9% | Reduced |
| Allspring Global Investments Holdings, LLC | 217,794 | $4.36M | 0.01% | +207,761+2,070.8% | Added |
| Point72 Asset Management, L.P. | 236,218 | $4.73M | 0.01% | −310,886−56.8% | Reduced |
| Cubist Systematic Strategies, LLC | 237,698 | $4.76M | 0.06% | +60,161+33.9% | Added |
| Charles Schwab Investment Management Inc | 242,258 | $4.85M | 0.00% | −16,608−6.4% | Reduced |
| Trexquant Investment LP | 248,991 | $4.98M | 0.06% | +45,420+22.3% | Added |
| Millennium Management LLC | 254,749 | $5.10M | 0.00% | −294,060−53.6% | Reduced |
| Citadel Advisors LLC | 258,382 | $5.17M | 0.01% | −576,130−69.0% | Reduced |
| Northern Trust Corp | 273,469 | $5.47M | 0.00% | −11,118−3.9% | Reduced |
| Kornitzer Capital Management Inc | 278,314 | $5.57M | 0.11% | −105,660−27.5% | Reduced |
| Qube Research & Technologies Ltd | 279,364 | $5.59M | 0.01% | +61,820+28.4% | Added |
| Bellevue Group AG | 301,103 | $6.03M | 0.14% | −444,879−59.6% | Reduced |
| Ameriprise Financial Inc | 325,697 | $6.52M | 0.00% | +9,661+3.1% | Added |
| Parkman Healthcare Partners LLC | 350,551 | $7.02M | 0.83% | +45,922+15.1% | Added |
| Braidwell LP | 365,247 | $7.31M | 0.26% | +365,247 | New |
| Bank of America Corp | 375,380 | $7.52M | 0.00% | −28,173−7.0% | Reduced |
| Palisade Capital Management LLC | 489,968 | $9.81M | 0.28% | −13,474−2.7% | Reduced |
| Park West Asset Management LLC | 556,485 | $11.1M | 0.91% | +556,485 | New |
| Nuveen, LLC | 671,811 | $11.9M | 0.00% | +671,811 | New |
| Schroder Investment Management Group | 597,089 | $11.9M | 0.01% | +597,089 | New |
| Allianz Asset Management GmbH | 639,477 | $12.8M | 0.02% | +317,103+98.4% | Added |
| Geode Capital Management, LLC | 649,853 | $13.0M | 0.00% | +21,657+3.4% | Added |
| Acadian Asset Management LLC | 676,066 | $13.5M | 0.04% | +267,416+65.4% | Added |
| Renaissance Technologies LLC | 701,200 | $14.0M | 0.02% | +16,200+2.4% | Added |
| State Street Corp | 715,028 | $14.3M | 0.00% | +4,816+0.7% | Added |
| Wellington Management Group LLP | 828,528 | $16.6M | 0.00% | +106,408+14.7% | Added |
| Wasatch Advisors Inc | 998,455 | $20.0M | 0.11% | −797,633−44.4% | Reduced |
| Dimensional Fund Advisors LP | 1,200,222 | $24.0M | 0.01% | +200,756+20.1% | Added |
| Portolan Capital Management, LLC | 1,265,223 | $25.3M | 1.93% | +488,644+62.9% | Added |
| Principal Financial Group Inc | 1,467,873 | $29.4M | 0.02% | +32,208+2.2% | Added |
| Vanguard Group Inc | 2,047,565 | $41.0M | 0.00% | +215,030+11.7% | Added |
| BlackRock, Inc. | 2,983,540 | $59.7M | 0.00% | +62,231+2.1% | Added |
| Proequities, Inc. | 0 | $0 | 0.00% | −6,960−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −252,917−100.0% | Sold out |
| Next Century Growth Investors LLC | 0 | $0 | 0.00% | −235,214−100.0% | Sold out |
| Intrinsic Edge Capital Management LLC | 0 | $0 | 0.00% | −232,711−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −215,322−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −110,824−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −74,132−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −46,265−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −28,903−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −23,043−100.0% | Sold out |
| Huntleigh Advisors, Inc. | 0 | $0 | 0.00% | −22,167−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −21,839−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −20,218−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −19,600−100.0% | Sold out |
| Alpha DNA Investment Management LLC | 0 | $0 | 0.00% | −15,174−100.0% | Sold out |
| Counterpoint Mutual Funds LLC | 0 | $0 | 0.00% | −13,587−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −12,405−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −11,400−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −10,716−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −10,395−100.0% | Sold out |