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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 2022

Institutional positions in Castle Biosciences Inc as of Sep 30, 2022. 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
157
+11 vs. Q2 2022
Shares held
21.9M
−701.8K (−3.1%) vs. Q2 2022
Total value
$569.8M
+$74.8M (+15.1%) vs. Q2 2022
New holders
24
58 more added
Sold out
13
46 more reduced

Compare with Q2 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.

Institutional holdersQ3 2022: 157 institutions
Q1 2021: 175 institutionsQ2 2021: 182 institutionsQ3 2021: 188 institutionsQ4 2021: 159 institutionsQ1 2022: 160 institutionsQ2 2022: 146 institutionsQ3 2022: 157 institutionsQ4 2022: 153 institutionsQ1 2023: 148 institutionsQ2 2023: 130 institutionsQ3 2023: 135 institutionsQ4 2023: 153 institutionsQ1 2024: 151 institutionsQ2 2024: 159 institutionsQ3 2024: 185 institutionsQ4 2024: 197 institutionsQ1 2025: 180 institutionsQ2 2025: 152 institutionsQ3 2025: 173 institutionsQ4 2025: 195 institutionsQ1 2026: 186 institutionsQ2 2026: 176 institutions
Value heldQ3 2022: $569.8M
Q1 2021: $1.46BQ2 2021: $1.52BQ3 2021: $1.42BQ4 2021: $918.6MQ1 2022: $1.02BQ2 2022: $495.0MQ3 2022: $569.8MQ4 2022: $522.0MQ1 2023: $501.9MQ2 2023: $316.6MQ3 2023: $391.0MQ4 2023: $515.4MQ1 2024: $553.2MQ2 2024: $549.4MQ3 2024: $736.9MQ4 2024: $706.4MQ1 2025: $516.3MQ2 2025: $541.8MQ3 2025: $608.3MQ4 2025: $1.06BQ1 2026: $677.8MQ2 2026: $653.8M
Institutions holding CSTL and their total value by quarter
QuarterHoldersValue
Q2 2026176$653.8M
Q1 2026186$677.8M
Q4 2025195$1.06B
Q3 2025173$608.3M
Q2 2025152$541.8M
Q1 2025180$516.3M
Q4 2024197$706.4M
Q3 2024185$736.9M
Q2 2024159$549.4M
Q1 2024151$553.2M
Q4 2023153$515.4M
Q3 2023135$391.0M
Q2 2023130$316.6M
Q1 2023148$501.9M
Q4 2022153$522.0M
Q3 2022157$569.8M
Q2 2022146$495.0M
Q1 2022160$1.02B
Q4 2021159$918.6M
Q3 2021188$1.42B
Q2 2021182$1.52B
Q1 2021175$1.46B

Institutions, Q3 2022

Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q2 2022.

Institutions holding CSTL in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Allworth Financial LP8$00.00%00.0%Unchanged
Capital Advisors, Ltd. LLC7$00.00%00.0%Unchanged
Missouri Trust & Investment Co19$1.00K0.00%00.0%Unchanged
Hallmark Capital Management Inc20$1.00K0.00%+20New
Daiwa Securities Group Inc.86$2.00K0.00%00.0%Unchanged
Global Retirement Partners, LLC77$2.00K0.00%00.0%Unchanged
FourThought Financial, LLC86$2.00K0.00%00.0%Unchanged
Private Trust Co NA60$2.00K0.00%00.0%Unchanged
Howe & Rusling Inc131$3.00K0.00%+46+54.1%Added
Nisa Investment Advisors, LLC164$4.00K0.00%+24+17.1%Added
Lindbrook Capital, LLC141$4.00K0.00%+61+76.3%Added
Baillie Gifford & Co225$6.00K0.00%00.0%Unchanged
China Universal Asset Management Co., Ltd.246$6.00K0.00%+246New
Creative Financial Designs Inc250$7.00K0.00%−350−58.3%Reduced
Almanack Investment Partners, LLC.270$7.00K0.00%+270New
Huntington National Bank293$8.00K0.00%00.0%Unchanged
State of Wyoming388$10.0K0.00%−15−3.7%Reduced
Assetmark, Inc475$12.0K0.00%00.0%Unchanged
FMR LLC781$20.0K0.00%+224+40.2%Added
Point72 Hong Kong Ltd1,168$30.0K0.00%+1,042+827.0%Added
Macquarie Group Ltd850$35.0K0.00%−476−35.9%Reduced
Metropolitan Life Insurance Co1,410$36.8K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.1,671$43.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,821$47.0K0.00%+691+61.2%Added
Advisor Group Holdings, Inc.2,524$65.0K0.00%+156+6.6%Added
Cullen/Frost Bankers, Inc.2,755$72.0K0.00%00.0%Unchanged
PEAK6 Investments LLC2,875$75.0K0.00%+2,875New
Royal Bank of Canada3,107$81.0K0.00%−2,085−40.2%Reduced
Amalgamated Bank3,114$81.0K0.00%+92+3.0%Added
Ensign Peak Advisors, Inc3,090$81.0K0.00%+2,200+247.2%Added
US Bancorp3,583$93.0K0.00%−9,224−72.0%Reduced
The PNC Financial Services Group, Inc.3,735$97.0K0.00%+41+1.1%Added
Zurcher Kantonalbank (Zurich Cantonalbank)3,924$102.0K0.00%−57−1.4%Reduced
Lazard Asset Management LLC4,093$106.0K0.00%+821+25.1%Added
Wells Fargo & Company4,102$107.0K0.00%+838+25.7%Added
Rockefeller Capital Management L.P.4,140$107.0K0.00%+3,940+1,970.0%Added
SG Americas Securities, LLC4,158$108.0K0.00%−35,220−89.4%Reduced
Great West Life Assurance Co5,344$139.0K0.00%+4,373+450.4%Added
Dark Forest Capital Management LP6,573$171.0K0.03%+6,573New
UBS Group AG7,131$186.0K0.00%−9,094−56.0%Reduced
First Horizon Advisors, Inc.7,228$188.0K0.01%+6,682+1,223.8%Added
DekaBank Deutsche Girozentrale7,900$203.0K0.00%00.0%Unchanged
Mesirow Financial Investment Management, Inc.7,967$208.0K0.99%+7,967New
Aquatic Capital Management LLC8,300$216.0K0.02%+8,300New
Simplex Trading, LLC8,968$233.0K0.01%+8,022+848.0%Added
Versor Investments LP9,017$235.0K0.01%−13,050−59.1%Reduced
New York Life Investments Alternatives9,130$238.0K0.24%00.0%Unchanged
Manufacturers Life Insurance Company, The9,495$247.6K0.00%−244−2.5%Reduced
Engineers Gate Manager LP9,537$249.0K0.02%−99,403−91.2%Reduced
Legal & General Group Plc9,820$257.0K0.00%+707+7.8%Added
Claybrook Capital, LLC10,026$261.0K0.17%00.0%Unchanged
Deutsche Bank AG10,733$280.0K0.00%−510−4.5%Reduced
Mirae Asset Global Investments Co., Ltd.10,920$285.0K0.00%+10,920New
Capital Impact Advisors, LLC14,455$289.0K0.29%+485+3.5%Added
American International Group, Inc.11,649$304.0K0.00%+519+4.7%Added
First Republic Investment Management, Inc.11,765$307.0K0.00%−414−3.4%Reduced
Valmark Advisers, Inc.12,269$320.0K0.01%−697−5.4%Reduced
Baird Financial Group, Inc.12,349$322.0K0.00%−1,397−10.2%Reduced
MetLife Investment Management12,369$322.6K0.00%00.0%Unchanged
Quantbot Technologies LP12,743$332.0K0.03%−2,818−18.1%Reduced
Cambridge Investment Research Advisors, Inc.13,002$339.0K0.00%00.0%Unchanged
Tudor Investment Corp Et Al14,238$371.0K0.01%+14,238New
Credit Suisse AG15,939$416.0K0.00%+276+1.8%Added
Pictet & Cie (Europe) SA15,957$416.2K0.02%+15,957New
State Board of Administration of Florida Retirement System16,464$429.0K0.00%−4,600−21.8%Reduced
Price T Rowe Associates Inc16,596$433.0K0.00%+2,957+21.7%Added
Renaissance Technologies LLC17,000$443.0K0.00%−400−2.3%Reduced
United Capital Financial Advisers, LLC18,054$471.0K0.00%+332+1.9%Added
Signaturefd, LLC19,397$506.0K0.02%00.0%Unchanged
Jump Financial, LLC20,306$530.0K0.02%+2,706+15.4%Added
STRS Ohio20,400$532.0K0.00%00.0%Unchanged
Fan Yu20,592$537.0K7.32%00.0%Unchanged
Covenant Partners, LLC21,279$555.0K0.27%00.0%Unchanged
Los Angeles Capital Management LLC21,865$570.0K0.00%00.0%Unchanged
Parallel Advisors, LLC22,091$576.0K0.03%00.0%Unchanged
Occudo Quantitative Strategies LP22,386$584.0K0.05%−20,997−48.4%Reduced
Alliancebernstein L.P.22,500$587.0K0.00%−21,186−48.5%Reduced
Envestnet Asset Management Inc22,646$591.0K0.00%+48+0.2%Added
Connor, Clark & Lunn Investment Management Ltd.23,091$602.0K0.00%+3,628+18.6%Added
Prelude Capital Management, LLC23,144$604.0K0.03%+86+0.4%Added
Advisors Capital Management, LLC26,895$607.0K0.02%+1,678+6.7%Added
HRT Financial LP23,949$624.0K0.01%+23,949New
Barclays PLC25,234$658.0K0.00%+24,040+2,013.4%Added
Victory Capital Management Inc25,637$669.0K0.00%−782−3.0%Reduced
Simon Quick Advisors, LLC26,000$678.0K0.10%+26,000New
Knights of Columbus Asset Advisors LLC26,064$680.0K0.07%+3,201+14.0%Added
D. E. Shaw & Co., Inc.27,532$718.0K0.00%+27,532New
California State Teachers Retirement System28,898$754.0K0.00%−160−0.6%Reduced
Perkins Capital Management Inc31,110$811.0K0.91%−2,060−6.2%Reduced
Trexquant Investment LP31,616$825.0K0.03%+31,616New
JPMorgan Chase & Co32,949$860.0K0.00%+2,826+9.4%Added
ABG Innovation Capital Partners III GP Ltd33,626$877.0K59.46%00.0%Unchanged
Candriam Luxembourg S.C.A.34,423$898.0K0.01%+34,423New
Brinker Capital Investments, LLC36,460$951.0K0.02%+7,882+27.6%Added
Rhumbline Advisers37,519$978.0K0.00%+3,239+9.4%Added
Bridgewater Associates, LP37,721$984.0K0.00%+1,245+3.4%Added
Calamos Advisors LLC38,876$1.01M0.00%+38,876New
Graham Capital Management, L.P.44,797$1.17M0.05%−28,875−39.2%Reduced
Stephens Inc44,775$1.17M0.02%−725−1.6%Reduced
King Luther Capital Management Corp45,846$1.20M0.01%00.0%Unchanged