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Livermore
Livermore
ZHEN

DRW Securities, LLC

SEC CIK
0001481986
Latest filing
Aug 14, 2026

APTO holding history

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

APTO overviewAll 13F holders of APTOFull Q2 2026 holdings

Shares (Q2 2026)
19,761
Value
$32.0K
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of APTO by DRW Securities, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202619,761$32.0K<0.1%00.0%UnchangedHolders
Q1 202619,761$32.9K<0.1%00.0%UnchangedHolders
Q4 202519,761$29.2K<0.1%00.0%UnchangedHolders
Q3 202519,761$23.1K<0.1%00.0%UnchangedHolders
Q2 202519,761$17.1K<0.1%+19,761NewHolders
Q1 20250$00.0%−592,829−100.0%Sold outHolders
Q4 2024592,829$133.6K<0.1%00.0%UnchangedHolders
Q3 2024592,829$243.6K<0.1%00.0%UnchangedHolders
Q2 2024592,829$450.0K<0.1%00.0%UnchangedHolders
Q1 2024592,829$984.1K0.1%00.0%UnchangedHolders
Q4 2023592,829$1.51M<0.1%00.0%UnchangedHolders
Q3 2023592,829$1.66M0.1%00.0%UnchangedHolders
Q2 2023592,829$2.75M0.2%00.0%UnchangedConverted for a 1-for-15 splitHolders
Q1 20238,892,437$5.69M0.8%00.0%UnchangedHolders
Q4 20228,892,437$5.16M1.0%–No prior filingHolders
Q3 2022––––Not filedHolders
Q2 20228,892,437$6.60M1.7%00.0%UnchangedHolders
Q1 20228,892,437$12.1M3.0%00.0%UnchangedHolders
Q4 20218,892,437$12.0M1.0%00.0%UnchangedHolders
Q3 20218,892,437$19.4M5.7%+416,261+4.9%AddedHolders
Q2 20218,476,176$28.1M3.8%+500,000+6.3%AddedHolders
Q1 20217,976,176$47.7M16.7%––Holders

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