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 2023
Institutional positions in Castle Biosciences Inc as of Mar 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
- 148
- −3 vs. Q4 2022
- Shares held
- 22.1M
- +254.8K (+1.2%) vs. Q4 2022
- Total value
- $501.9M
- −$12.1M (−2.4%) vs. Q4 2022
- New holders
- 15
- 63 more added
- Sold out
- 18
- 37 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 2,979,913 | $67.7M | 0.42% | −242,649−7.5% | Reduced |
| BlackRock Inc. | 2,119,557 | $48.2M | 0.00% | −4,131−0.2% | Reduced |
| Vanguard Group Inc | 1,403,901 | $31.9M | 0.00% | +11,177+0.8% | Added |
| Principal Financial Group Inc | 1,287,147 | $29.2M | 0.02% | +376,327+41.3% | Added |
| Granahan Investment Management Inc | 1,200,049 | $27.3M | 0.83% | +155,721+14.9% | Added |
| Bellevue Group AG | 948,878 | $21.6M | 0.31% | +4,566+0.5% | Added |
| Millennium Management LLC | 825,437 | $18.8M | 0.02% | −87,938−9.6% | Reduced |
| Citadel Advisors LLC | 660,956 | $15.0M | 0.02% | +109,641+19.9% | Added |
| Kornitzer Capital Management Inc | 648,224 | $14.7M | 0.29% | −68,020−9.5% | Reduced |
| Palisade Capital Management LLC | 577,018 | $13.1M | 0.35% | +25,923+4.7% | Added |
| State Street Corp | 522,528 | $11.9M | 0.00% | +18,075+3.6% | Added |
| GW&K Investment Management, LLC | 494,781 | $11.2M | 0.11% | +15,122+3.2% | Added |
| Greenhouse Funds LLLP | 494,241 | $11.2M | 0.98% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 484,954 | $11.0M | 0.00% | +19,287+4.1% | Added |
| Dimensional Fund Advisors LP | 483,652 | $11.0M | 0.00% | +159,966+49.4% | Added |
| Essex Investment Management Co LLC | 480,918 | $10.9M | 1.59% | +27,601+6.1% | Added |
| Nuveen Asset Management, LLC | 405,758 | $9.22M | 0.00% | +103,109+34.1% | Added |
| Intrinsic Edge Capital Management LLC | 395,836 | $8.99M | 0.91% | +30,869+8.5% | Added |
| Allspring Global Investments Holdings, LLC | 368,453 | $8.37M | 0.01% | +15,623+4.4% | Added |
| Stonepine Capital Management, LLC | 292,866 | $6.65M | 2.23% | +114,626+64.3% | Added |
| Point72 Asset Management, L.P. | 284,847 | $6.47M | 0.02% | +83,466+41.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 272,135 | $6.18M | 0.14% | 00.0% | Unchanged |
| RTW Investments, LP | 258,498 | $5.87M | 0.12% | −258,497−50.0% | Reduced |
| Portolan Capital Management, LLC | 256,649 | $5.83M | 0.56% | −327,067−56.0% | Reduced |
| Northern Trust Corp | 225,702 | $5.13M | 0.00% | −4,391−1.9% | Reduced |
| New York State Common Retirement Fund | 220,925 | $5.02M | 0.01% | +6,447+3.0% | Added |
| Banque Pictet & Cie SA | 190,385 | $4.33M | 0.04% | −14,032−6.9% | Reduced |
| Charles Schwab Investment Management Inc | 183,666 | $4.17M | 0.00% | −870−0.5% | Reduced |
| Captrust Financial Advisors | 168,732 | $3.83M | 0.02% | +168,732 | New |
| First Light Asset Management, LLC | 161,618 | $3.67M | 0.33% | +140.0% | Added |
| UBS Asset Management Americas Inc | 157,322 | $3.57M | 0.00% | −1,741−1.1% | Reduced |
| Goldman Sachs Group Inc | 137,914 | $3.13M | 0.00% | −108,942−44.1% | Reduced |
| Ameriprise Financial Inc | 114,909 | $2.61M | 0.00% | +3,670+3.3% | Added |
| Two Sigma Advisers, LP | 112,300 | $2.55M | 0.01% | −19,800−15.0% | Reduced |
| SEI Investments Co | 96,327 | $2.19M | 0.00% | +96,327 | New |
| Voya Investment Management LLC | 90,920 | $2.07M | 0.00% | −13,723−13.1% | Reduced |
| Morgan Stanley | 88,864 | $2.02M | 0.00% | +30,546+52.4% | Added |
| Invenomic Capital Management LP | 87,252 | $1.98M | 0.11% | +87,252 | New |
| Bank of New York Mellon Corp | 81,368 | $1.85M | 0.00% | −1,614−1.9% | Reduced |
| Stephens Inc | 75,019 | $1.70M | 0.03% | +21,387+39.9% | Added |
| Algert Global LLC | 69,382 | $1.58M | 0.07% | +530+0.8% | Added |
| Public Employees Retirement System of Ohio | 66,705 | $1.52M | 0.01% | 00.0% | Unchanged |
| Isthmus Partners, LLC | 64,472 | $1.46M | 0.21% | +6,660+11.5% | Added |
| Norges Bank | 61,600 | $1.40M | 0.00% | −69,600−53.0% | Reduced |
| Bank of America Corp | 57,162 | $1.30M | 0.00% | +8,205+16.8% | Added |
| Swiss National Bank | 48,400 | $1.10M | 0.00% | −5,500−10.2% | Reduced |
| Zacks Investment Management | 46,030 | $1.05M | 0.01% | +3,541+8.3% | Added |
| JPMorgan Chase & Co | 44,328 | $1.01M | 0.00% | +8,930+25.2% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 42,182 | $958.4K | 0.01% | +14,038+49.9% | Added |
| Rhumbline Advisers | 39,295 | $893.0K | 0.00% | +1,383+3.6% | Added |
| Renaissance Technologies LLC | 36,400 | $827.0K | 0.00% | +14,300+64.7% | Added |
| King Luther Capital Management Corp | 35,481 | $806.1K | 0.00% | −825−2.3% | Reduced |
| Cubist Systematic Strategies, LLC | 35,117 | $797.9K | 0.01% | +1,683+5.0% | Added |
| ABG Innovation Capital Partners III GP Ltd | 33,626 | $764.0K | 70.27% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 32,289 | $734.0K | 0.07% | +5,393+20.1% | Added |
| Perkins Capital Management Inc | 31,110 | $707.0K | 0.67% | 00.0% | Unchanged |
| Advisors Capital Management, LLC | 31,059 | $706.0K | 0.02% | −152−0.5% | Reduced |
| Graham Capital Management, L.P. | 31,011 | $704.6K | 0.02% | +4,076+15.1% | Added |
| Brinker Capital Investments, LLC | 29,665 | $674.0K | 0.01% | −3,159−9.6% | Reduced |
| Orion Portfolio Solutions, LLC | 29,665 | $674.0K | 0.01% | +29,665 | New |
| California State Teachers Retirement System | 28,800 | $654.3K | 0.00% | −421−1.4% | Reduced |
| Credit Suisse AG | 27,790 | $631.4K | 0.00% | +4,618+19.9% | Added |
| Legato Capital Management LLC | 27,534 | $625.6K | 0.11% | +9,038+48.9% | Added |
| STRS Ohio | 27,100 | $615.0K | 0.00% | +6,700+32.8% | Added |
| Simon Quick Advisors, LLC | 26,000 | $590.7K | 0.06% | 00.0% | Unchanged |
| Knights of Columbus Asset Advisors LLC | 25,813 | $586.5K | 0.06% | +22+0.1% | Added |
| Schonfeld Strategic Advisors LLC | 25,744 | $584.9K | 0.01% | −31,715−55.2% | Reduced |
| Envestnet Asset Management Inc | 24,665 | $560.4K | 0.00% | +2,273+10.2% | Added |
| Prelude Capital Management, LLC | 23,144 | $525.8K | 0.04% | 00.0% | Unchanged |
| Prudential Financial Inc | 22,965 | $521.8K | 0.00% | +11,500+100.3% | Added |
| Invesco Ltd. | 22,905 | $520.4K | 0.00% | +3,782+19.8% | Added |
| Two Sigma Investments, LP | 22,624 | $514.0K | 0.00% | −31,321−58.1% | Reduced |
| Engineers Gate Manager LP | 22,560 | $512.6K | 0.02% | −16,969−42.9% | Reduced |
| Alliancebernstein L.P. | 22,500 | $511.2K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 22,481 | $511.0K | 0.01% | +22,481 | New |
| Parallel Advisors, LLC | 22,069 | $501.4K | 0.02% | 00.0% | Unchanged |
| Covenant Partners, LLC | 21,279 | $483.5K | 0.19% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 22,812 | $477.0K | 0.00% | −14,783−39.3% | Reduced |
| Los Angeles Capital Management LLC | 20,863 | $474.0K | 0.00% | −773−3.6% | Reduced |
| Fan Yu | 20,592 | $467.9K | 25.76% | 00.0% | Unchanged |
| Signaturefd, LLC | 19,408 | $440.9K | 0.01% | +11+0.1% | Added |
| Jump Financial, LLC | 17,400 | $395.3K | 0.02% | −1,900−9.8% | Reduced |
| XTX Topco Ltd | 16,254 | $369.3K | 0.08% | +16,254 | New |
| Capital Impact Advisors, LLC | 15,452 | $351.1K | 0.43% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 15,284 | $348.0K | 0.00% | +303+2.0% | Added |
| Deutsche Bank AG | 15,231 | $346.0K | 0.00% | +4,336+39.8% | Added |
| HRT Financial LP | 15,008 | $340.0K | 0.00% | +15,008 | New |
| Putnam Investments LLC | 14,456 | $328.4K | 0.00% | +5,739+65.8% | Added |
| Mesirow Financial Investment Management, Inc. | 14,431 | $327.9K | 1.36% | +14,431 | New |
| Occudo Quantitative Strategies LP | 14,280 | $324.4K | 0.03% | −4,776−25.1% | Reduced |
| Claybrook Capital, LLC | 13,526 | $307.3K | 0.17% | +3,500+34.9% | Added |
| Polar Capital Holdings Plc | 13,398 | $304.4K | 0.00% | 00.0% | Unchanged |
| TownSquare Capital, LLC | 12,896 | $293.0K | 0.01% | +736+6.1% | Added |
| Pictet & Cie (Europe) SA | 12,740 | $289.5K | 0.01% | +122+1.0% | Added |
| Barclays PLC | 12,454 | $283.0K | 0.00% | +5,866+89.0% | Added |
| MetLife Investment Management | 12,369 | $281.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 11,842 | $269.1K | 0.00% | +235+2.0% | Added |
| Susquehanna International Group, LLP | 11,717 | $266.2K | 0.00% | +11,717 | New |
| Mirae Asset Global Investments Co., Ltd. | 11,573 | $262.9K | 0.00% | +642+5.9% | Added |
| Baird Financial Group, Inc. | 11,455 | $260.3K | 0.00% | −739−6.1% | Reduced |