13F

Stock

Aptose Biosciences Inc.

APTOF · held by 4 managers

Reported value

$40K

Holders

4

+0 new · −0 exited

Holders’ est. mark

$4.21K

Price effect on 4 books still in the name

Largest holder

$32.9K

DRW Securities, LLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
DRW Securities, LLC19.8K$32.9K$3.68KAdded$3.67K
Gleason Group, Inc.4.21K$7.02K$528Added$528
Farther Finance Advisors, LLC10$17$2Added$2
CALDWELL SUTTER CAPITAL, INC.2$3$0Held

Positions as of Q1 2026. 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.