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Livermore
Livermore
ZHEN

Renaissance Technologies LLC

SEC CIK
0001037389
Latest filing
Aug 13, 2026

CSTL holding history

Castle Biosciences Inc in every 13F filed by Renaissance Technologies LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CSTL overviewAll 13F holders of CSTLFull Q2 2026 holdings

Shares (Q2 2026)
371,200
Value
$8.85M
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of CSTL by Renaissance Technologies LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026371,200$8.85M<0.1%−161,600−30.3%ReducedHolders
Q1 2026532,800$13.1M<0.1%+39,700+8.1%AddedHolders
Q4 2025493,100$19.2M<0.1%−69,500−12.4%ReducedHolders
Q3 2025562,600$12.8M<0.1%−107,900−16.1%ReducedHolders
Q2 2025670,500$13.7M<0.1%−30,700−4.4%ReducedHolders
Q1 2025701,200$14.0M<0.1%+16,200+2.4%AddedHolders
Q4 2024685,000$18.3M<0.1%+195,438+39.9%AddedHolders
Q3 2024489,562$14.0M<0.1%+188,062+62.4%AddedHolders
Q2 2024301,500$6.56M<0.1%+96,800+47.3%AddedHolders
Q1 2024204,700$4.53M<0.1%+92,300+82.1%AddedHolders
Q4 2023112,400$2.43M<0.1%+5,600+5.2%AddedHolders
Q3 2023106,800$1.80M<0.1%−65,600−38.1%ReducedHolders
Q2 2023172,400$2.37M<0.1%+136,000+373.6%AddedHolders
Q1 202336,400$827.0K<0.1%+14,300+64.7%AddedHolders
Q4 202222,100$520.0K<0.1%+5,100+30.0%AddedHolders
Q3 202217,000$443.0K<0.1%−400−2.3%ReducedHolders
Q2 202217,400$382.0K<0.1%−7,600−30.4%ReducedHolders
Q1 202225,000$1.12M<0.1%−109,281−81.4%ReducedHolders
Q4 2021134,281$5.76M<0.1%+134,281NewHolders
Q2 20210$00.0%−27,500−100.0%Sold outHolders
Q1 202127,500$1.88M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.