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 2023
Institutional positions in Castle Biosciences Inc as of Dec 31, 2023. 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
- 153
- +19 vs. Q3 2023
- Shares held
- 23.9M
- +742.8K (+3.2%) vs. Q3 2023
- Total value
- $515.4M
- +$124.6M (+31.9%) vs. Q3 2023
- New holders
- 37
- 55 more added
- Sold out
- 18
- 45 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GW&K Investment Management, LLC | 15 | $0 | 0.00% | −493,967−100.0% | Reduced |
| Huntington National Bank | 1 | $22 | 0.00% | −363−99.7% | Reduced |
| Farther Finance Advisors, LLC | 5 | $108 | 0.00% | +5 | New |
| Colonial Trust Advisors | 6 | $129 | 0.00% | 00.0% | Unchanged |
| Fairman Group, LLC | 13 | $281 | 0.00% | +13 | New |
| Tfo-TDC, LLC | 15 | $324 | 0.00% | 00.0% | Unchanged |
| Missouri Trust & Investment Co | 19 | $410 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 21 | $485 | 0.00% | +21 | New |
| The PNC Financial Services Group, Inc. | 38 | $820 | 0.00% | −2,226−98.3% | Reduced |
| Group One Trading, L.P. | 41 | $885 | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 65 | $1.00K | 0.00% | +65 | New |
| BFSG, LLC | 90 | $1.94K | 0.00% | +90 | New |
| Daiwa Securities Group Inc. | 86 | $2.00K | 0.00% | 00.0% | Unchanged |
| Macroview Investment Management LLC | 133 | $2.87K | 0.00% | −448−77.1% | Reduced |
| Lindbrook Capital, LLC | 172 | $3.71K | 0.00% | +172 | New |
| Principal Securities, Inc. | 183 | $3.95K | 0.00% | +183 | New |
| GWM Advisors LLC | 250 | $5.39K | 0.00% | +250 | New |
| Sound Income Strategies, LLC | 250 | $5.39K | 0.00% | +250 | New |
| MCF Advisors LLC | 258 | $5.57K | 0.00% | +258 | New |
| US Bancorp | 301 | $6.50K | 0.00% | +23+8.3% | Added |
| Nisa Investment Advisors, LLC | 320 | $6.91K | 0.00% | −537−62.7% | Reduced |
| Arcadia Investment Management Corp | 522 | $11.3K | 0.00% | +522 | New |
| RiverPark Advisors, LLC | 619 | $13.4K | 0.01% | +619 | New |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 726 | $15.7K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 956 | $16.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 930 | $20.1K | 0.00% | +116+14.3% | Added |
| FMR LLC | 945 | $20.4K | 0.00% | −65−6.4% | Reduced |
| Global Retirement Partners, LLC | 1,105 | $21.4K | 0.00% | +1,078+3,992.6% | Added |
| Coppell Advisory Solutions LLC | 1,190 | $25.7K | 0.01% | +1,190 | New |
| Metropolitan Life Insurance Co | 1,410 | $30.4K | 0.00% | 00.0% | Unchanged |
| O'Dell Group, LLC | 2,041 | $44.0K | 0.01% | +2,041 | New |
| Ameritas Investment Partners, Inc. | 2,450 | $52.9K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,683 | $58.0K | 0.00% | −248−8.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 3,110 | $67.1K | 0.01% | +2,421+351.4% | Added |
| Assetmark, Inc | 4,736 | $102.2K | 0.00% | +832+21.3% | Added |
| Tower Research Capital LLC (TRC) | 5,343 | $115.3K | 0.00% | +4,366+446.9% | Added |
| Citigroup Inc | 5,585 | $120.5K | 0.00% | +2,855+104.6% | Added |
| Allspring Global Investments Holdings, LLC | 5,739 | $123.8K | 0.00% | +5,189+943.5% | Added |
| WuXi AppTec Co., Ltd. | 6,636 | $143.2K | 0.37% | +6,636 | New |
| First Horizon Advisors, Inc. | 7,853 | $169.5K | 0.01% | −250−3.1% | Reduced |
| Wells Fargo & Company | 7,947 | $171.5K | 0.00% | +1,546+24.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,192 | $176.8K | 0.00% | +1,395+20.5% | Added |
| Advisor Group Holdings, Inc. | 8,339 | $179.8K | 0.00% | +1,779+27.1% | Added |
| Janus Henderson Group PLC | 9,270 | $200.1K | 0.00% | +9,270 | New |
| Royal Bank of Canada | 9,839 | $212.0K | 0.00% | +5,380+120.7% | Added |
| Manufacturers Life Insurance Company, The | 9,950 | $214.7K | 0.00% | −395−3.8% | Reduced |
| Birchview Capital, LP | 10,000 | $215.8K | 0.17% | +10,000 | New |
| Voya Investment Management LLC | 10,187 | $219.8K | 0.00% | +10,187 | New |
| Lido Advisors, LLC | 10,524 | $227.1K | 0.00% | +10,524 | New |
| Y-Intercept (Hong Kong) Ltd | 10,593 | $228.6K | 0.02% | +10,593 | New |
| Trexquant Investment LP | 11,491 | $248.0K | 0.01% | −138−1.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 11,589 | $250.1K | 0.00% | +42+0.4% | Added |
| Truist Financial Corp | 11,630 | $251.0K | 0.00% | −1,467−11.2% | Reduced |
| Harbor Capital Advisors, Inc. | 11,952 | $257.9K | 0.05% | +2,205+22.6% | Added |
| Fox Run Management, L.L.C. | 12,150 | $262.2K | 0.07% | +12,150 | New |
| Prelude Capital Management, LLC | 12,193 | $263.1K | 0.02% | +12,193 | New |
| Keebeck Alpha, LP | 12,193 | $263.1K | 0.21% | +12,193 | New |
| Corton Capital Inc. | 12,343 | $266.4K | 0.08% | +12,343 | New |
| American International Group, Inc. | 12,349 | $266.5K | 0.00% | −50−0.4% | Reduced |
| MetLife Investment Management | 12,369 | $266.9K | 0.00% | 00.0% | Unchanged |
| Centiva Capital, LP | 12,558 | $271.0K | 0.02% | +12,558 | New |
| DFPG Investments, LLC | 13,649 | $283.8K | 0.02% | −766−5.3% | Reduced |
| Pictet & Cie (Europe) SA | 13,563 | $292.7K | 0.01% | −516−3.7% | Reduced |
| Versor Investments LP | 14,143 | $305.2K | 0.06% | −400−2.8% | Reduced |
| XTX Topco Ltd | 14,145 | $305.2K | 0.07% | +14,145 | New |
| AQR Capital Management LLC | 14,203 | $306.5K | 0.00% | −240−1.7% | Reduced |
| Graham Capital Management, L.P. | 14,880 | $321.1K | 0.01% | +14,880 | New |
| Capital Impact Advisors, LLC | 16,554 | $357.2K | 0.47% | 00.0% | Unchanged |
| Great West Life Assurance Co | 16,892 | $362.0K | 0.00% | +5,659+50.4% | Added |
| Price T Rowe Associates Inc | 16,903 | $365.0K | 0.00% | +428+2.6% | Added |
| Two Sigma Investments, LP | 17,300 | $373.3K | 0.00% | +4,500+35.2% | Added |
| Los Angeles Capital Management LLC | 18,201 | $392.8K | 0.00% | −2,984−14.1% | Reduced |
| State of Wisconsin Investment Board | 19,915 | $429.8K | 0.00% | +19,915 | New |
| Jump Financial, LLC | 20,436 | $441.0K | 0.01% | −3,564−14.9% | Reduced |
| Fan Yu | 22,503 | $485.6K | 2.43% | +22,503 | New |
| TownSquare Capital, LLC | 22,741 | $490.8K | 0.01% | −3,242−12.5% | Reduced |
| STRS Ohio | 24,100 | $520.0K | 0.00% | −4,000−14.2% | Reduced |
| Legal & General Group Plc | 24,821 | $535.6K | 0.00% | +4,457+21.9% | Added |
| Putnam Investments LLC | 25,006 | $539.6K | 0.00% | −789−3.1% | Reduced |
| Soleus Capital Management, L.P. | 26,000 | $561.1K | 0.06% | −257,500−90.8% | Reduced |
| Susquehanna International Group, LLP | 26,600 | $574.0K | 0.00% | +26,600 | New |
| American Century Companies Inc | 26,709 | $576.4K | 0.00% | +9,078+51.5% | Added |
| California State Teachers Retirement System | 26,766 | $577.6K | 0.00% | −1,112−4.0% | Reduced |
| Parallel Advisors, LLC | 26,968 | $582.0K | 0.02% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 27,261 | $588.3K | 0.00% | 00.0% | Unchanged |
| Simon Quick Advisors, LLC | 29,062 | $627.2K | 0.06% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 31,267 | $674.7K | 0.02% | +31,267 | New |
| Royce & Associates LP | 31,642 | $682.8K | 0.01% | +8,833+38.7% | Added |
| Russell Investments Group, Ltd. | 31,983 | $690.2K | 0.00% | +2,998+10.3% | Added |
| Two Sigma Advisers, LP | 32,100 | $692.7K | 0.00% | −24,400−43.2% | Reduced |
| Invesco Ltd. | 32,156 | $693.9K | 0.00% | −3,801−10.6% | Reduced |
| Perkins Capital Management Inc | 32,140 | $694.0K | 0.59% | +2,980+10.2% | Added |
| Credit Suisse AG | 34,050 | $734.8K | 0.00% | +4,598+15.6% | Added |
| ABG Innovation Capital Partners III GP Ltd | 36,747 | $793.0K | 88.14% | +3,121+9.3% | Added |
| Rhumbline Advisers | 37,908 | $818.0K | 0.00% | +60+0.2% | Added |
| Captrust Financial Advisors | 38,409 | $828.9K | 0.00% | −324−0.8% | Reduced |
| Barclays PLC | 39,380 | $849.8K | 0.00% | +30,398+338.4% | Added |
| UBS Group AG | 41,477 | $895.1K | 0.00% | +23,436+129.9% | Added |
| Jane Street Group, LLC | 43,351 | $935.5K | 0.00% | +22,560+108.5% | Added |
| Stephens Inc | 43,579 | $940.4K | 0.02% | −53,372−55.1% | Reduced |