13F

Stock

Aptose Biosciences Inc.

APTOF · held by 4 managers

Reported value

$35.8K

Holders

4

+0 new · −0 exited

Holders’ est. mark

Need a prior quarter

Largest holder

$29.2K

DRW Securities, LLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
DRW Securities, LLC19.8K$29.2KHeld
Gleason Group, Inc.4.21K$6.5KHeld
Farther Finance Advisors, LLC10$15Held
CALDWELL SUTTER CAPITAL, INC.2$3Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.