APTOF · Aptose Biosciences Inc. · Holdings
$1.69
+0.00 (+0.00%)
At close · Jul 3
Return incl. dividend (before tax)
Going-concern doubt
— flagged May 13, 2026
Substantial doubt about the company's ability to continue as a going concern.
“The aforementioned conditions raise substantial doubt about the Company's ability to continue as a going concern.”View the 10-Q filed May 13, 2026
Market Cap
$4.31M
Shares
2.55M
Volume · Jul 3
426
Avg daily vol (2 sessions)
531
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.
Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
Holders: 4
Total Value: $0
Total Shares: 24,179
Institutional Ownership Trend
6 quarters
Quarterly Activity
vs Mar 31, 2026
New
0
Increased
1
Decreased
0
Sold Out
0
Unchanged
3
Holder count:
0
Institutional value:
—
Shares held:
+0.8%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small CALDWELL SUTTER CAPITAL, INC. | +200 | 202 |
Top Sellers
vs Mar 31, 2026No qualifying movers this quarter.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large Farther Finance Advisors, LLC | — | — | 10 | Shares | 2026-07-17 | |
| Mid DRW Securities, LLC Broker-Dealer | — | — | 19,761 | Shares | 2026-08-14 | |
| Mid Gleason Group, Inc. | — | — | 4,206 | Shares | 2026-07-13 | |
| Small CALDWELL SUTTER CAPITAL, INC. | — | — | 202 | Shares | 2026-08-05 |