5/5Aptose Biosciences Inc. (APTOF): Auditor change

Market data

n/a: no price data available for APTOF.

Insider trading around this filing

90 days before the flag: no open-market insider sales or purchases reported.
30 days after: none reported.

Open-market purchases and sales (Form 4 codes P and S) by officers, directors and 10% owners, by transaction date, from 2025-01-21 to 2025-05-21. Excludes option exercises, grants, gifts and tax withholding. Amended filings replace the originals; joint filings count once. Foreign private issuers do not file Form 4. Many insider sales are pre-scheduled (10b5-1 plans) and are not by themselves a sign of wrongdoing.

Verified excerpt

"(the "Company"), informed the Company that it will not stand for re-appointment for the Company's 2025 annual audit."

Quoted from the filing. Source

What this means

The company changed its outside auditor (8-K Item 4.01). A dismissal or resignation, especially near an annual report or with reported disagreements, is a warning sign. Changes caused by audit firms merging are usually routine.

Type: changed
Disagreements reported: yes

Why this score: disagreements reported; also within 90 days: Going-concern doubt