What is APTOF's dilution risk score?

APTOF has a latest available DilutionScore record of 67/100, categorized as high dilution risk by the DilutionWatch scoring model. DilutionWatch displays SEC filing and dilution indicators for APTOF, including shelf registrations, ATM offerings, warrant exercises, PIPE deals, and reverse split signals when detected in source data.

What SEC filings does DilutionWatch track for APTOF?

DilutionWatch tracks 25 SEC filing types for APTOF including S-3 shelf registrations, 424B prospectuses (ATM offerings), S-1 registration statements, 8-K material events, warrant exercise notices, convertible note agreements, and Form 4 insider transactions. Alerts are delivered via email within minutes of a filing appearing on EDGAR.

How does stock dilution affect APTOF shareholders?

Stock dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders. For APTOF, common dilution events include at-the-market (ATM) stock offerings, shelf registration drawdowns, warrant exercises, and convertible note conversions. Each event increases the share count and can pressure the stock price lower.

Is DilutionWatch free for APTOF tracking?

DilutionWatch provides a free tier that shows DilutionScores and basic filing history for APTOF. Premium plans ($19.95/month Basic, $39.95/month Premium) unlock real-time email alerts, the full Pulse™ feed, advanced dilution forecasts, and access to all 10,000+ tracked tickers.

APTOF Dilution Risk Score: 67/100 (HIGH)

Score Breakdown

📋 Offering Ability

💰 Cash Runway

📊 Float Risk

⚠️ Warrant Exposure

🔄 Convertible Debt

Dilution Forecast

⛈️

Warning

High probability of dilution event

model est. 55%

📜 Warrant Exercise model 60%

• Massive warrant overhang: 45% of shares outstanding

• Warrant risk score very high (90/100)

💰 Capital Raise model 55%

• Critical: only 1.4 months cash remaining

🔄 Reverse Split model est. 45%

• 50-day avg $1.69 approaching $1 threshold

• Only 1 months cash — financial pressure

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Market Data

Market Cap$4.21M

Shares Outstanding2.55M

Float1.86M

Cash$2.92M

Debt$32.95M

Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

Field	Current Value	Basis
DilutionScore	67/100	DilutionWatch score record
Shares Outstanding	2.55M	Verified float table or market cache
Public Float	1.86M	Verified float table or market cache
Market Cap	$4.21M	Market data cache
Cash Runway	1.4 months	DilutionWatch score inputs
Shelf Capacity	None in current score inputs	SEC-derived dilution fields
ATM Capacity	None in current score inputs	SEC-derived dilution fields
Outstanding Warrants	1.14M	SEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 3.

Recent SEC source mix: 8-K 1, XBRL 2.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

3.9% institutional ownership

Source: Yahoo Finance · Detailed 13F holder data available for tracked tickers

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Short Interest

No current FINRA short-interest record is available for this ticker.

Recent SEC Activity

xbrl XBRL WARRANT 2026-05-13

xbrl XBRL CONVERTIBLE 2026-05-13

8-K 8K EVENT 2026-02-24

Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual APTOF Dilution Snapshot

Aptose Biosciences Inc. (APTOF) has a DilutionScore of 67/100, rated High dilution risk. Score date: October 13, 2026.

Stored outstanding warrants: 1.1M.
Recent SEC activity tracked for APTOF: xbrl on 2026-05-13; xbrl on 2026-05-13; 8-K on 2026-02-24.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

APTOF's DilutionScore is currently 67/100 (High risk), with 1 score change tracked over 89 days. The score improved from 65/100 (High risk).

Period	Score	Risk Level	Duration
Sep 28 – Oct 13, 2026	67/100	HIGH	16 days
Jul 16 – Sep 27, 2026	65/100	HIGH	73 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

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DilutionWatch monitors SEC filings 24/7 and alerts you the moment APTOF files a shelf registration, ATM offering, warrant notice, or convertible note. Free tier available — no credit card required.

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