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Filing
SCHEDULE 13G/A
SCHEDULE 13G/A0001420506-25-002103·Aptose Biosciences Inc.
Schedule 13G ownership disclosure
APTOSE BIOSCIENCES INC
Common Shares · CUSIP: 03835T309
Event date: 2025-06-30
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- Bleichroeder LP
Shares: 41,666 · Class: 1.61%
- Bleichroeder Holdings LLC
Shares: 41,666 · Class: 1.61%
- Andrew Gundlach
Shares: 41,666 · Class: 1.61%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001420506-25-002103
- Form type
- SCHEDULE 13G/A
- Filer
- Aptose Biosciences Inc.
- CIK
- CIK 882361
- Filed
- Aug 14, 2025
- Reporting period
- Jun 30, 2025
- Description
- Schedule 13G beneficial ownership