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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, Q2 2022

Institutional positions in Castle Biosciences Inc as of Jun 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
146
−11 vs. Q1 2022
Shares held
22.6M
−177.1K (−0.8%) vs. Q1 2022
Total value
$495.0M
−$521.6M (−51.3%) vs. Q1 2022
New holders
25
72 more added
Sold out
36
29 more reduced

3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2022: 146 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 heldQ2 2022: $495.0M
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, Q2 2022

Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q1 2022.

Institutions holding CSTL in Q2 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Capital Advisors, Ltd. LLC7$00.00%−1−12.5%Reduced
Tradewinds Capital Management, LLC5$00.00%00.0%Unchanged
Allworth Financial LP8$00.00%+8New
Missouri Trust & Investment Co19$1.00K0.00%00.0%Unchanged
Private Trust Co NA60$1.00K0.00%+60New
Daiwa Securities Group Inc.86$2.00K0.00%00.0%Unchanged
Global Retirement Partners, LLC77$2.00K0.00%00.0%Unchanged
Howe & Rusling Inc85$2.00K0.00%+60+240.0%Added
Lindbrook Capital, LLC80$2.00K0.00%+64+400.0%Added
FourThought Financial, LLC86$2.00K0.00%+58+207.1%Added
Nisa Investment Advisors, LLC140$3.00K0.00%00.0%Unchanged
Prospera Financial Services Inc125$3.00K0.00%00.0%Unchanged
Point72 Hong Kong Ltd126$3.00K0.00%+126New
Rockefeller Capital Management L.P.200$4.00K0.00%−22−9.9%Reduced
Baillie Gifford & Co225$5.00K0.00%00.0%Unchanged
Huntington National Bank293$6.00K0.00%+251+597.6%Added
State of Wyoming403$9.00K0.01%−369−47.8%Reduced
Assetmark, Inc475$10.0K0.00%+375+375.0%Added
First Horizon Advisors, Inc.546$11.0K0.00%−52−8.7%Reduced
Captrust Financial Advisors497$11.0K0.00%+31+6.7%Added
FMR LLC557$12.0K0.00%+106+23.5%Added
Creative Financial Designs Inc600$13.0K0.00%+100+20.0%Added
Ensign Peak Advisors, Inc890$20.0K0.00%00.0%Unchanged
Simplex Trading, LLC946$20.0K0.00%+946New
Great West Life Assurance Co971$21.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,130$25.0K0.00%−1,713−60.3%Reduced
Barclays PLC1,194$26.0K0.00%−2,359−66.4%Reduced
Macquarie Group Ltd1,326$29.0K0.00%−657,400−99.8%Reduced
Metropolitan Life Insurance Co1,410$30.9K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.1,671$36.0K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.2,368$52.0K0.00%−3,879−62.1%Reduced
Cullen/Frost Bankers, Inc.2,755$60.0K0.00%−2,465−47.2%Reduced
Amalgamated Bank3,022$66.0K0.00%−375−11.0%Reduced
Wells Fargo & Company3,264$71.0K0.00%−101,099−96.9%Reduced
Lazard Asset Management LLC3,272$71.0K0.00%+1,995+156.2%Added
The PNC Financial Services Group, Inc.3,694$81.0K0.00%−51−1.4%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)3,981$87.0K0.00%−194−4.6%Reduced
Royal Bank of Canada5,192$114.0K0.00%+3,530+212.4%Added
First Bank & Trust7,818$172.0K0.06%+3,708+90.2%Added
DekaBank Deutsche Girozentrale7,900$182.0K0.00%00.0%Unchanged
Legal & General Group Plc9,113$200.0K0.00%−94−1.0%Reduced
New York Life Investments Alternatives9,130$200.0K0.18%+9,130New
Manufacturers Life Insurance Company, The9,739$213.8K0.00%+1,069+12.3%Added
Claybrook Capital, LLC10,026$220.0K0.13%00.0%Unchanged
Marshall Wace, LLP10,400$228.0K0.00%+10,400New
American International Group, Inc.11,130$244.0K0.00%+552+5.2%Added
Deutsche Bank AG11,243$247.0K0.00%−1,009−8.2%Reduced
First Republic Investment Management, Inc.12,179$267.0K0.00%+2,631+27.6%Added
MetLife Investment Management12,369$271.5K0.00%00.0%Unchanged
US Bancorp12,807$281.0K0.00%−3,661−22.2%Reduced
Cambridge Investment Research Advisors, Inc.13,002$285.0K0.00%+36+0.3%Added
Valmark Advisers, Inc.12,966$285.0K0.01%+3,534+37.5%Added
Price T Rowe Associates Inc13,639$299.0K0.00%−28−0.2%Reduced
Baird Financial Group, Inc.13,746$302.0K0.00%−603−4.2%Reduced
Capital Impact Advisors, LLC13,970$307.0K0.28%−3,561−20.3%Reduced
Quantbot Technologies LP15,561$341.0K0.03%+15,561New
Credit Suisse AG15,663$345.0K0.00%+799+5.4%Added
UBS Group AG16,225$356.0K0.00%+12,376+321.5%Added
Renaissance Technologies LLC17,400$382.0K0.00%−7,600−30.4%Reduced
Jump Financial, LLC17,600$386.0K0.02%+1,398+8.6%Added
United Capital Financial Advisers, LLC17,722$389.0K0.00%+56+0.3%Added
Qube Research & Technologies Ltd18,792$412.0K0.00%+18,792New
Signaturefd, LLC19,397$426.0K0.01%+7,592+64.3%Added
Connor, Clark & Lunn Investment Management Ltd.19,463$427.0K0.00%+19,463New
STRS Ohio20,400$447.0K0.00%+17,600+628.6%Added
Fan Yu20,592$452.0K6.99%+20,592New
State Board of Administration of Florida Retirement System21,064$462.0K0.00%+16,410+352.6%Added
Covenant Partners, LLC21,279$467.0K0.22%00.0%Unchanged
Los Angeles Capital Management LLC21,865$480.0K0.00%+21,865New
Versor Investments LP22,067$484.0K0.02%+22,067New
Parallel Advisors, LLC22,091$485.0K0.02%+182+0.8%Added
Envestnet Asset Management Inc22,598$496.0K0.00%−16,178−41.7%Reduced
Knights of Columbus Asset Advisors LLC22,863$502.0K0.05%00.0%Unchanged
Prelude Capital Management, LLC23,058$506.0K0.02%+15,591+208.8%Added
Advisors Capital Management, LLC25,217$554.0K0.02%+7,587+43.0%Added
Victory Capital Management Inc26,419$580.0K0.00%+93+0.4%Added
Rice Hall James & Associates, LLC26,750$587.0K0.03%+599+2.3%Added
Brinker Capital Investments, LLC28,578$627.0K0.01%−6,683−19.0%Reduced
California State Teachers Retirement System29,058$638.0K0.00%+2,841+10.8%Added
JPMorgan Chase & Co30,123$661.0K0.00%+5,799+23.8%Added
Twinbeech Capital LP32,866$721.0K0.03%+32,866New
Perkins Capital Management Inc33,170$728.0K0.75%00.0%Unchanged
ABG Innovation Capital Partners III GP Ltd33,626$738.0K54.91%+33,626New
Rhumbline Advisers34,280$752.0K0.00%+12,344+56.3%Added
Bridgewater Associates, LP36,476$801.0K0.00%+4,373+13.6%Added
SG Americas Securities, LLC39,378$864.0K0.01%+34,705+742.7%Added
Cinctive Capital Management LP40,000$878.0K0.04%+40,000New
Occudo Quantitative Strategies LP43,383$952.0K0.08%+43,383New
Alliancebernstein L.P.43,686$959.0K0.00%+18,886+76.2%Added
Stanley-Laman Group, Ltd.43,875$963.0K0.17%+3,659+9.1%Added
Stephens Inc45,500$999.0K0.02%+45,500New
King Luther Capital Management Corp45,846$1.01M0.01%−60,254−56.8%Reduced
Bank of America Corp45,925$1.01M0.00%+8,915+24.1%Added
Polar Capital Holdings Plc48,985$1.07M0.01%+4,000+8.9%Added
Swiss National Bank50,800$1.11M0.00%+2,900+6.1%Added
Isthmus Partners, LLC52,714$1.16M0.22%+12,491+31.1%Added
Premier Fund Managers Ltd52,282$1.20M0.05%00.0%Unchanged
Bank of New York Mellon Corp71,238$1.56M0.00%−30,648−30.1%Reduced
Graham Capital Management, L.P.73,672$1.62M0.07%+73,672New
Squarepoint Ops LLC81,414$1.79M0.02%+71,074+687.4%Added