Aptose Biosciences Inc. 8-K

What Happened
Aptose Biosciences, Inc. (APTOF) filed a Form 8-K on March 19, 2026 under Item 7.01 to report a press release dated March 19, 2026. The press release is attached to the filing as Exhibit 99.1 and is incorporated by reference into the Form 8‑K.

Key Details

• Filing date: March 19, 2026; Item reported: 7.01 (Regulation FD Disclosure).
• Press release attached as Exhibit 99.1 to the Form 8‑K.
• The company states, per General Instruction B.2 of Form 8‑K, the press release information is not deemed “filed” for purposes of Section 18 of the Exchange Act and is not incorporated by reference into other filings unless specifically referenced.

Why It Matters
This 8‑K indicates Aptose publicly disclosed information via a press release under Regulation FD, meaning any potentially material information was released broadly to the market. Retail investors should read the attached press release (Exhibit 99.1) for the specific content and any material updates that could affect the company’s outlook or stock price.