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8-K ·Filed May 13, 2026

APTOF

Aptose Biosciences Inc.
NEUTRAL
Impact 5/10
Horizonweeks Processed5mo ago SEC0001171843-26-003381
8-K Item 2.02: Earnings release
Actionable Insight • Neutral

The stock is trading near the C$2.41 acquisition price, so the primary catalyst is the Hanmi deal closing. Monitor for Korean regulatory approval updates in the coming weeks. The EHA oral presentation in June could provide a pipeline catalyst if data is strong, but the acquisition overhang dominates near-term price action.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+20d
APTOF ▼ -5.85% at T+20d
NEUTRAL call -5.85% · α vs SPY -4.99% · entry $1.71 → $1.61
Next anchor: T+60d due 3mo ago
Entry = T+0 close
May 13, 2026
via day close
T+1d
-0.58%
call -0.58% · α +0.64%
$1.70
settled 6mo ago
T+5d
0.00%
call 0.00% · α +0.72%
$1.71
settled 5mo ago
T+20d
-5.85%
call -5.85% · α -4.99%
$1.61
settled 5mo ago
T+60d
Pending
due 3mo ago

Price Chart

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Executive Summary

Aptose reported Q1 2026 results with a net loss of $7.6M, wider than the $5.5M loss in Q1 2025, as R&D spending increased on the TUSCANY trial. The key event is the delayed closing of the Hanmi acquisition (C$2.41/share, 28% premium), now targeted for May 2026, with an oral presentation at EHA 2026 in June. The company has only $4.1M cash and relies on Hanmi advances to fund operations, making the deal's completion critical.

Key Financial Metrics

EPS
−$2.99
Rating
in line

Key Facts

  • Net loss for Q1 2026 was $7.6M, up from $5.5M in Q1 2025, driven by increased TUSCANY trial costs
  • Cash and restricted cash at March 31, 2026 was $4.1M, essentially flat from $4.1M at year-end 2025
  • Working capital deficit worsened to ($5.1M) from ($2.9M) at December 31, 2025
  • Hanmi acquisition delayed; closing targeted for May 2026 pending Korean regulatory approvals
  • Shareholders to receive C$2.41/share, a 28% premium over 30-day VWAP of C$1.88
  • TUS+VEN+AZA triplet data selected for oral presentation at EHA 2026 Congress (June 11-14)
  • Luxeptinib license rights returned to CGI; trial being wound down
  • Company does not have sufficient cash to fund operations and relies on Hanmi advances

Financial Impact

Net loss increased $2.1M YoY to $7.6M; cash runway dependent on Hanmi acquisition closing

net losscash positionworking capitalR&D spend

Risk Factors

  • Hanmi acquisition fails to close, leaving Aptose with insufficient cash to fund operations
  • Further delays in Korean regulatory approvals could extend uncertainty
  • Widening net losses and negative working capital indicate financial distress without the deal
  • Dilution risk from 1.1M outstanding warrants if exercised

Market Snapshot

Exchange
OTC
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
86% bullish (7 analysts)

Investment Themes

Documents Analyzed

This report is based on 6 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001171843-26-003381
Document: f8k_051326.htm0001171843-26-003381
Document: 0001171843-26-003381-index-headers.html0001171843-26-003381
Document: 0001171843-26-003381-index.html0001171843-26-003381
Document: 0001171843-26-003381.txt0001171843-26-003381
8-K Data (Synthetic)0001171843-26-003381
5 reports for APTOF
Performance horizon
33% Hit rate @ T+5 1 of 3 directional calls Went positive at some point 1 of 3 best @ T+20▲ +6.79%Mar 19, 2026
Filters
Rows
Reports for APTOF — sortable, filterable
TypeNow
Jul 1, 2026
16w ago
15-12G
BEARISH ★ 7/10
$1.68 $1.69▼ −0.60%▼ −0.64%—
Jun 15, 2026
19w ago
8-K
BULLISH ★ 7/10
$1.61 $1.48▼ −8.07%▼ −5.46%—
May 29, 2026
21w ago
8-K
NEUTRAL ★ 5/10
$1.65 $1.57▼ −4.85%▼ −2.32%—
May 13, 2026
23w ago
8-K
NEUTRAL ★ 5/10
$1.71 $1.71· 0.00%▲ +0.72%—
Mar 19, 2026
31w ago
8-K
BULLISH ★ 8/10
$1.62 $1.64▲ +1.23%▲ +3.45%—
Showing 5 of 5

US Market Status

Market Open — Closes in 3h 41m

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Report published May 13, 2026