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Renaissance Technologies LLC

SEC CIK
0001037389
Latest filing
Aug 13, 2026

RBCN holding history

Rubicon Technology, 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.

RBCN overviewAll 13F holders of RBCNFull Q2 2026 holdings

Shares (Q4 2022)
0
Sold out in Q4 2022
Value
$0
% of portfolio
0.0%
Quarters held
7
Since Q1 2021
Holdings of RBCN by Renaissance Technologies LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q4 20220$00.0%−90,671−100.0%Sold outHolders
Q3 202290,671$194.0K<0.1%−4,008−4.2%ReducedHolders
Q2 202294,679$870.0K<0.1%−2,100−2.2%ReducedHolders
Q1 202296,779$898.0K<0.1%−2,700−2.7%ReducedHolders
Q4 202199,479$892.0K<0.1%−4,100−4.0%ReducedHolders
Q3 2021103,579$1.05M<0.1%−2,300−2.2%ReducedHolders
Q2 2021105,879$1.01M<0.1%−2,633−2.4%ReducedHolders
Q1 2021108,512$1.12M<0.1%––Holders

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