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, Q2 2023
Institutional positions in Castle Biosciences Inc as of Jun 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
- 130
- −18 vs. Q1 2023
- Shares held
- 23.0M
- +876.4K (+4.0%) vs. Q1 2023
- Total value
- $316.6M
- −$185.3M (−36.9%) vs. Q1 2023
- New holders
- 16
- 70 more added
- Sold out
- 34
- 25 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Parkman Healthcare Partners LLC | 148,002 | $2.03M | 0.35% | +148,002 | New |
| Greenhouse Funds LLLP | 150,670 | $2.07M | 0.17% | −343,571−69.5% | Reduced |
| First Light Asset Management, LLC | 160,126 | $2.20M | 0.17% | −1,492−0.9% | Reduced |
| Renaissance Technologies LLC | 172,400 | $2.37M | 0.00% | +136,000+373.6% | Added |
| Banque Pictet & Cie SA | 183,803 | $2.52M | 0.02% | −6,582−3.5% | Reduced |
| Charles Schwab Investment Management Inc | 185,995 | $2.55M | 0.00% | +2,329+1.3% | Added |
| Captrust Financial Advisors | 229,691 | $3.15M | 0.01% | +60,959+36.1% | Added |
| Northern Trust Corp | 237,084 | $3.25M | 0.00% | +11,382+5.0% | Added |
| New York State Common Retirement Fund | 241,233 | $3.31M | 0.00% | +20,308+9.2% | Added |
| Jacobs Levy Equity Management, Inc | 258,151 | $3.54M | 0.02% | +258,151 | New |
| UBS Asset Management Americas Inc | 157,322 | $3.57M | 0.00% | 00.0% | Unchanged |
| Invenomic Capital Management LP | 278,818 | $3.83M | 0.21% | +191,566+219.6% | Added |
| Ameriprise Financial Inc | 317,954 | $4.36M | 0.00% | +203,045+176.7% | Added |
| Intrinsic Edge Capital Management LLC | 356,206 | $4.89M | 0.38% | −39,630−10.0% | Reduced |
| Allspring Global Investments Holdings, LLC | 378,387 | $5.19M | 0.01% | +9,934+2.7% | Added |
| Nuveen Asset Management, LLC | 416,414 | $5.71M | 0.00% | +10,656+2.6% | Added |
| Portolan Capital Management, LLC | 431,474 | $5.92M | 0.52% | +174,825+68.1% | Added |
| GW&K Investment Management, LLC | 488,745 | $6.71M | 0.06% | −6,036−1.2% | Reduced |
| Dimensional Fund Advisors LP | 489,583 | $6.72M | 0.00% | +5,931+1.2% | Added |
| Geode Capital Management, LLC | 497,684 | $6.83M | 0.00% | +12,730+2.6% | Added |
| State Street Corp | 535,328 | $7.34M | 0.00% | +12,800+2.4% | Added |
| Palisade Capital Management LLC | 602,204 | $8.26M | 0.22% | +25,186+4.4% | Added |
| Kornitzer Capital Management Inc | 648,224 | $8.89M | 0.17% | 00.0% | Unchanged |
| Millennium Management LLC | 1,035,593 | $14.2M | 0.02% | +210,156+25.5% | Added |
| Bellevue Group AG | 1,124,043 | $15.4M | 0.22% | +175,165+18.5% | Added |
| Principal Financial Group Inc | 1,360,001 | $18.7M | 0.01% | +72,854+5.7% | Added |
| Vanguard Group Inc | 1,427,421 | $19.6M | 0.00% | +23,520+1.7% | Added |
| BlackRock Inc. | 2,131,700 | $29.2M | 0.00% | +12,143+0.6% | Added |
| Granahan Investment Management Inc | 2,529,431 | $34.7M | 1.07% | +1,329,382+110.8% | Added |
| Wasatch Advisors Inc | 3,087,001 | $42.4M | 0.26% | +107,088+3.6% | Added |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −480,918−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −284,847−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −272,135−100.0% | Sold out |
| RTW Investments, LP | 0 | $0 | 0.00% | −258,498−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −61,600−100.0% | Sold out |
| Zacks Investment Management | 0 | $0 | 0.00% | −46,030−100.0% | Sold out |
| King Luther Capital Management Corp | 0 | $0 | 0.00% | −35,481−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −31,011−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −27,534−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −23,144−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −22,560−100.0% | Sold out |
| Covenant Partners, LLC | 0 | $0 | 0.00% | −21,279−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −22,812−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −20,863−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −16,254−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −15,008−100.0% | Sold out |
| Mesirow Financial Investment Management, Inc. | 0 | $0 | 0.00% | −14,431−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −14,280−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −11,455−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −10,954−100.0% | Sold out |
| First Republic Investment Management, Inc. | 0 | $0 | 0.00% | −10,770−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −9,296−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −7,900−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,138−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −2,685−100.0% | Sold out |
| Ten Capital Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,376−100.0% | Sold out |
| Baillie Gifford & Co | 0 | $0 | 0.00% | −225−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −199−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −185−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −164−100.0% | Sold out |
| C M Bidwell & Associates Ltd | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −68−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −37−100.0% | Sold out |