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 2023
Institutional positions in Castle Biosciences Inc as of Sep 30, 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
- 135
- +6 vs. Q2 2023
- Shares held
- 23.2M
- +181.5K (+0.8%) vs. Q2 2023
- Total value
- $391.0M
- +$74.4M (+23.5%) vs. Q2 2023
- New holders
- 22
- 52 more added
- Sold out
- 16
- 41 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 2,780,744 | $47.0M | 0.30% | −306,257−9.9% | Reduced |
| Granahan Investment Management Inc | 2,487,673 | $42.0M | 1.50% | −41,758−1.7% | Reduced |
| BlackRock Inc. | 2,136,180 | $36.1M | 0.00% | +4,480+0.2% | Added |
| Principal Financial Group Inc | 1,482,170 | $25.0M | 0.02% | +122,169+9.0% | Added |
| Vanguard Group Inc | 1,439,388 | $24.3M | 0.00% | +11,967+0.8% | Added |
| Bellevue Group AG | 1,228,031 | $20.7M | 0.33% | +103,988+9.3% | Added |
| Deerfield Management Company, L.P. (Series C) | 946,620 | $16.0M | 0.35% | +946,620 | New |
| Kornitzer Capital Management Inc | 648,224 | $10.9M | 0.23% | 00.0% | Unchanged |
| Palisade Capital Management LLC | 602,261 | $10.2M | 0.28% | +570.0% | Added |
| Millennium Management LLC | 595,096 | $10.1M | 0.01% | −440,497−42.5% | Reduced |
| State Street Corp | 565,164 | $9.55M | 0.00% | +29,836+5.6% | Added |
| Dimensional Fund Advisors LP | 555,401 | $9.38M | 0.00% | +65,818+13.4% | Added |
| Jacobs Levy Equity Management, Inc | 547,403 | $9.25M | 0.05% | +289,252+112.0% | Added |
| Geode Capital Management, LLC | 536,236 | $9.06M | 0.00% | +38,552+7.7% | Added |
| Citadel Advisors LLC | 518,058 | $8.75M | 0.01% | +461,775+820.5% | Added |
| GW&K Investment Management, LLC | 493,982 | $8.34M | 0.08% | +5,237+1.1% | Added |
| Invenomic Capital Management LP | 285,957 | $4.83M | 0.20% | +7,139+2.6% | Added |
| Soleus Capital Management, L.P. | 283,500 | $4.79M | 0.48% | +283,500 | New |
| Ameriprise Financial Inc | 266,000 | $4.49M | 0.00% | −51,954−16.3% | Reduced |
| Portolan Capital Management, LLC | 253,028 | $4.27M | 0.40% | −178,446−41.4% | Reduced |
| New York State Common Retirement Fund | 245,868 | $4.15M | 0.01% | +4,635+1.9% | Added |
| Northern Trust Corp | 243,846 | $4.12M | 0.00% | +6,762+2.9% | Added |
| Parkman Healthcare Partners LLC | 224,592 | $3.79M | 0.70% | +76,590+51.7% | Added |
| Banque Pictet & Cie SA | 203,275 | $3.43M | 0.04% | +19,472+10.6% | Added |
| Charles Schwab Investment Management Inc | 200,989 | $3.39M | 0.00% | +14,994+8.1% | Added |
| Nuveen Asset Management, LLC | 176,284 | $2.98M | 0.00% | −240,130−57.7% | Reduced |
| Walleye Capital LLC | 170,786 | $2.88M | 0.04% | +170,786 | New |
| Intrinsic Edge Capital Management LLC | 156,270 | $2.64M | 0.33% | −199,936−56.1% | Reduced |
| Goldman Sachs Group Inc | 151,751 | $2.56M | 0.00% | +70,030+85.7% | Added |
| Schonfeld Strategic Advisors LLC | 148,030 | $2.50M | 0.02% | +110,500+294.4% | Added |
| Cubist Systematic Strategies, LLC | 136,537 | $2.31M | 0.03% | +88,647+185.1% | Added |
| Advisors Capital Management, LLC | 116,890 | $1.97M | 0.05% | +37,318+46.9% | Added |
| Renaissance Technologies LLC | 106,800 | $1.80M | 0.00% | −65,600−38.1% | Reduced |
| Public Employees Retirement System of Ohio | 100,254 | $1.69M | 0.01% | +18,679+22.9% | Added |
| Stephens Inc | 96,951 | $1.64M | 0.03% | −10,947−10.1% | Reduced |
| Bank of New York Mellon Corp | 81,141 | $1.37M | 0.00% | +1,058+1.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 80,585 | $1.36M | 0.01% | +19,040+30.9% | Added |
| Millrace Asset Group, Inc. | 77,315 | $1.31M | 1.61% | +77,315 | New |
| Brinker Capital Investments, LLC | 74,027 | $1.25M | 0.02% | −3,523−4.5% | Reduced |
| Orion Portfolio Solutions, LLC | 74,027 | $1.25M | 0.02% | −3,523−4.5% | Reduced |
| Numerai GP LLC | 68,163 | $1.15M | 0.38% | +963+1.4% | Added |
| Algert Global LLC | 67,212 | $1.14M | 0.05% | −21,860−24.5% | Reduced |
| Two Sigma Advisers, LP | 56,500 | $954.3K | 0.00% | −36,500−39.2% | Reduced |
| Swiss National Bank | 55,200 | $932.3K | 0.00% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 53,983 | $911.8K | 0.00% | +18,469+52.0% | Added |
| Knights of Columbus Asset Advisors LLC | 53,341 | $900.9K | 0.08% | +27,470+106.2% | Added |
| JPMorgan Chase & Co | 52,663 | $889.5K | 0.00% | +1,165+2.3% | Added |
| Gsa Capital Partners LLP | 52,195 | $882.0K | 0.08% | +11,280+27.6% | Added |
| Alliancebernstein L.P. | 44,690 | $754.8K | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 44,200 | $746.5K | 0.00% | +44,200 | New |
| Bank of America Corp | 42,723 | $721.6K | 0.00% | −1,918−4.3% | Reduced |
| Captrust Financial Advisors | 38,733 | $654.2K | 0.00% | −190,958−83.1% | Reduced |
| Morgan Stanley | 38,646 | $652.7K | 0.00% | −66,134−63.1% | Reduced |
| Rhumbline Advisers | 37,848 | $639.2K | 0.00% | +539+1.4% | Added |
| Invesco Ltd. | 35,957 | $607.3K | 0.00% | +12,238+51.6% | Added |
| ABG Innovation Capital Partners III GP Ltd | 33,626 | $567.9K | 77.21% | 00.0% | Unchanged |
| Credit Suisse AG | 29,452 | $497.4K | 0.00% | −1,462−4.7% | Reduced |
| Alpha DNA Investment Management LLC | 29,399 | $496.6K | 0.32% | +29,399 | New |
| Perkins Capital Management Inc | 29,160 | $493.0K | 0.49% | −1,425−4.7% | Reduced |
| Simon Quick Advisors, LLC | 29,062 | $490.9K | 0.05% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 28,985 | $489.6K | 0.00% | +21,265+275.5% | Added |
| Signaturefd, LLC | 28,358 | $479.0K | 0.01% | −32−0.1% | Reduced |
| STRS Ohio | 28,100 | $474.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 27,878 | $470.9K | 0.00% | −2,687−8.8% | Reduced |
| UBS Asset Management Americas Inc | 27,261 | $460.4K | 0.00% | −130,061−82.7% | Reduced |
| Parallel Advisors, LLC | 26,968 | $455.5K | 0.02% | −87−0.3% | Reduced |
| AE Wealth Management LLC | 26,182 | $442.2K | 0.00% | +26,182 | New |
| Mach-1 Financial Group, Inc. | 26,034 | $439.7K | 0.18% | +26,034 | New |
| TownSquare Capital, LLC | 25,983 | $438.9K | 0.01% | −11,711−31.1% | Reduced |
| Putnam Investments LLC | 25,795 | $435.7K | 0.00% | +10,283+66.3% | Added |
| Jump Financial, LLC | 24,000 | $405.4K | 0.02% | +4,300+21.8% | Added |
| Royce & Associates LP | 22,809 | $385.2K | 0.00% | +22,809 | New |
| Los Angeles Capital Management LLC | 21,185 | $357.8K | 0.00% | +21,185 | New |
| Jane Street Group, LLC | 20,791 | $351.2K | 0.00% | −2,371−10.2% | Reduced |
| Legal & General Group Plc | 20,364 | $343.9K | 0.00% | −245−1.2% | Reduced |
| UBS Group AG | 18,041 | $304.7K | 0.00% | +736+4.3% | Added |
| American Century Companies Inc | 17,631 | $297.8K | 0.00% | +4,201+31.3% | Added |
| Capital Impact Advisors, LLC | 16,554 | $279.6K | 0.47% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 16,475 | $279.0K | 0.00% | +1,009+6.5% | Added |
| DFPG Investments, LLC | 14,415 | $246.9K | 0.02% | −1,737−10.8% | Reduced |
| Versor Investments LP | 14,543 | $245.6K | 0.05% | +14,543 | New |
| AQR Capital Management LLC | 14,443 | $243.9K | 0.00% | +14,443 | New |
| Pictet & Cie (Europe) SA | 14,079 | $237.8K | 0.01% | +1,813+14.8% | Added |
| Deutsche Bank AG | 14,038 | $237.1K | 0.00% | +3,177+29.3% | Added |
| Channing Capital Management, LLC | 13,403 | $226.4K | 0.01% | 00.0% | Unchanged |
| Truist Financial Corp | 13,097 | $221.2K | 0.00% | +198+1.5% | Added |
| Verition Fund Management LLC | 12,942 | $218.6K | 0.00% | −4,700−26.6% | Reduced |
| Two Sigma Investments, LP | 12,800 | $216.2K | 0.00% | −19,100−59.9% | Reduced |
| American International Group, Inc. | 12,399 | $209.4K | 0.00% | +441+3.7% | Added |
| MetLife Investment Management | 12,369 | $208.9K | 0.00% | 00.0% | Unchanged |
| Trexquant Investment LP | 11,629 | $196.4K | 0.00% | +11,629 | New |
| Mirae Asset Global Investments Co., Ltd. | 11,547 | $195.0K | 0.00% | +27+0.2% | Added |
| Commonwealth Equity Services, LLC | 11,274 | $190.0K | 0.00% | −4,022−26.3% | Reduced |
| Great West Life Assurance Co | 11,233 | $189.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 10,345 | $174.7K | 0.00% | 00.0% | Unchanged |
| Claybrook Capital, LLC | 10,026 | $169.3K | 0.10% | −3,500−25.9% | Reduced |
| Harbor Capital Advisors, Inc. | 9,747 | $164.6K | 0.04% | −4,517−31.7% | Reduced |
| Barclays PLC | 8,982 | $151.7K | 0.00% | −528−5.6% | Reduced |
| First Horizon Advisors, Inc. | 8,103 | $136.9K | 0.00% | +672+9.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,797 | $114.8K | 0.00% | +2,909+74.8% | Added |