Aptose Biosciences Inc.
APTODelisted Jul 21, 2025- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0000882361
Aptose Biosciences Inc. was delisted on Jul 21, 2025; its insiders filed their last Form 4 on Jul 2, 2026; 16 institutions reported holding it in 13F filings for Q1 2025, worth $486.8K in total; no superinvestor held it.
Q2 2023 vs. Q1 2023
How the institutions holding Aptose Biosciences Inc. changed between Q1 2023 and Q2 2023.
All holders in Q2 2023All holders in Q1 2023
| Measure | Q1 2023 | Q2 2023 | Change |
|---|---|---|---|
| Holders | 45 | 25 | −20 |
| SharesConverted for a 1-for-15 split | 1.40M | 1.01M | −392.1K (−27.9%) |
| Value | $13.5M | $4.71M | −$8.80M (−65.1%) |
New holders (3)
Institutions that held Aptose Biosciences Inc. at the end of Q2 2023 but not at the end of Q1 2023.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Bank of America Corp | 100 | $464 | 0.00% |
| Caldwell Sutter Capital, Inc. | 92 | $427 | 0.00% |
| Tower Research Capital LLC (TRC) | 29 | $135 | 0.00% |
Sold out (23)
Institutions that held Aptose Biosciences Inc. at the end of Q1 2023 and filed for Q2 2023 without it.
| Institution | Shares, Q1 2023 | Value, Q1 2023 |
|---|---|---|
| Sigma Planning Corp | 1,444,550 | $924.5K |
| Renaissance Technologies LLC | 320,794 | $205.0K |
| Formidable Asset Management, LLC | 90,000 | $58.0K |
| Cetera Advisors LLC | 86,827 | $55.8K |
| Gagnon Securities LLC | 76,409 | $48.9K |
| Two Sigma Advisers, LP | 70,450 | $45.1K |
| Arrowroot Family Office, LLC | 67,190 | $43.0K |
| Millennium Management LLC | 57,166 | $37.0K |
| Toronto Dominion Bank | 48,500 | $31.0K |
| Two Sigma Investments, LP | 43,107 | $27.6K |
| Evanson Asset Management, LLC | 39,498 | $25.3K |
| J Arnold Wealth Management Co | 39,400 | $25.2K |
| Raymond James & Associates | 37,087 | $23.7K |
| Geode Capital Management, LLC | 32,455 | $20.8K |
| Transcend Wealth Collective, LLC | 24,000 | $15.4K |
| Sequoia Financial Advisors, LLC | 20,000 | $12.8K |
| Newman Dignan & Sheerar, Inc. | 18,915 | $12.1K |
| WealthTrust Axiom LLC | 15,000 | $9.60K |
| Jane Street Group, LLC | 11,926 | $7.63K |
| BNP Paribas Arbitrage, SA | 11,700 | $7.49K |
| Warberg Asset Management LLC | 11,500 | $7.36K |
| PDS Planning, Inc | 10,000 | $6.40K |
| Citadel Advisors LLC | 9,251 | $5.92K |