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Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

COST holding history

Costco Wholesale Corp in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

COST overviewAll 13F holders of COSTFull Q2 2026 holdings

Shares (Q2 2026)
11,161
Value
$10.4M
% of portfolio
0.3%
Quarters held
12
Since Q1 2021
Holdings of COST by Simplex Trading, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202611,161$10.4M0.3%+11,161NewHolders
Q1 20260$00.0%−3,949−100.0%Sold outHolders
Q4 20253,949$3.41M0.1%+3,949NewHolders
Q1 20250$00.0%−8,469−100.0%Sold outHolders
Q4 20248,469$7.76M0.2%+6,209+274.7%AddedHolders
Q3 20242,260$2.00M0.1%+2,260NewHolders
Q2 20240$00.0%−5,589−100.0%Sold outHolders
Q1 20245,589$4.09M0.1%+5,589NewHolders
Q3 20230$00.0%−163−100.0%Sold outHolders
Q2 2023163$87.0K<0.1%+163NewHolders
Q4 20220$00.0%−16,879−100.0%Sold outHolders
Q3 202216,879$7.97M0.3%+16,879NewHolders
Q2 20220$00.0%−24,538−100.0%Sold outHolders
Q1 202224,538$14.1M0.4%+8,806+56.0%AddedHolders
Q4 202115,732$8.93M0.3%+7,793+98.2%AddedHolders
Q3 20217,939$3.13M0.1%+1,816+29.7%AddedHolders
Q2 20216,123$2.42M0.1%−15,278−71.4%ReducedHolders
Q1 202121,401$00.0%––Holders

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