APTOF · Aptose Biosciences Inc.
$1.69
+0.02 (+0.90%)
At close · Jul 2
Going-concern doubt
— flagged May 13, 2026
Substantial doubt about the company's ability to continue as a going concern.
“our ability to continue as a going concern; - our need to raise substantial additional capital in the near future and our ability to raise such funds when needed and on acceptable terms; - if a financing is completed, it may not be a large enough financing to fully fund the company's operations”View the 10-Q filed May 13, 2026
Market Cap
$4.31M
Shares
2.55M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 4
Total Value: $39,753
Total Shares: 23,979
Institutional Ownership Trend
6 quarters
Holder Concentration
Across 4 13F filersTop Holder
82.4%
of institutional value
Top 5
100.0%
of institutional value
Top 10
100.0%
of institutional value
HHI
7,099
Highly concentrated
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid DRW Securities, LLC Broker-Dealer | $32,921 | 82.81% | 19,761 | Shares | Other | 2026-05-13 | ||||
| Micro Gleason Group, Inc. | $6,813 | 17.14% | 4,206 | Shares | Sole | 2026-07-13 | ||||
| Mid Farther Finance Advisors, LLC | $16 | 0.04% | 10 | Shares | Sole | 2026-07-17 | ||||
| Small CALDWELL SUTTER CAPITAL, INC. | $3 | 0.01% | 2 | Shares | Sole | 2026-05-06 | ||||
| No holders match your search. | ||||||||||