Aptose Biosciences Inc.

APTOF · OTC · SIC 2836: Biological Products, (No Diagnostic Substances)
681
SEC Filings
$1.69
Close 2026-07-02

Business Summary

Aptose Biosciences is a clinical-stage biotechnology company developing precision medicines for hematologic oncology. Its lead asset, tuspetinib, is an oral once-daily kinase inhibitor being investigated for acute myeloid leukemia (AML) and higher-risk myelodysplastic syndromes. The company is advancing tuspetinib in the Phase 1/2 TUSCANY trial as a triplet combination (TUS+VEN+AZA) for newly diagnosed AML. Aptose is headquartered in San Diego, CA, with a head office in Toronto, Canada.

Latest Stock Quote

APTOF 2026-07-02 $1.69 O:$1.69 H:$1.69 L:$1.69 Vol:0.0M VWAP:$1.6873
origin leaf: null

Next Earnings

Q2 FY2026 — expected 2026-09-21

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-03-312025-12-310001193125-26-135012EDGAR80K words
2025-03-282024-12-310000950170-25-046366EDGAR77K words
2024-03-262023-12-310000950170-24-036537EDGAR55K words
2023-03-242022-12-310000950170-23-009560EDGAR49K words
2022-03-222021-12-310001171843-22-002048EDGAR—
2021-03-232020-12-310001171843-21-002006EDGAR—
2020-03-102019-12-310001171843-20-001617EDGAR—
2019-03-122018-12-310001171843-19-001661EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2025-11-132025-09-300001193125-25-280433EDGAR29K words
2025-08-132025-06-300000950170-25-108110EDGAR28K words
2025-05-082025-03-310000950170-25-066391EDGAR25K words
2024-11-122024-09-300000950170-24-124343EDGAR27K words
2024-08-082024-06-300000950170-24-094205EDGAR26K words
2024-05-142024-03-310000950170-24-059768EDGAR22K words
2023-11-092023-09-300000950170-23-062207EDGAR22K words
2023-08-102023-06-300000950170-23-041441EDGAR21K words
2023-05-082023-03-310000950170-23-018923EDGAR17K words
2022-11-012022-09-300001171843-22-006964EDGAR23K words
2022-08-022022-06-300001171843-22-005260EDGAR23K words
2022-05-092022-03-310001171843-22-003463EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-03-310001171843-26-002103EDGAR3K words
2026-03-310001193125-26-134870EDGAR1K words
2026-03-230001193125-26-119951EDGAR1K words
2026-03-230001171843-26-001837EDGAR1K words
2026-03-190001171843-26-001777EDGAR1K words
2026-02-240001193125-26-064847EDGAR2K words
2025-12-190001171843-25-008045EDGAR1K words
2025-12-080001171843-25-007795EDGAR1K words
2025-11-250001193125-25-294108EDGAR67K words
2025-11-190001171843-25-007415EDGAR3K words

681 total filings indexed. 651 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

FDMT — 4D Molecular Therapeutics, Inc. APTN — ADAPTIN BIO, INC. ADMA — ADMA BIOLOGICS, INC. AGEN — AGENUS INC AIM — AIM ImmunoTech Inc. AMGN — AMGEN INC AVXL — ANAVEX LIFE SCIENCES CORP. ARGX — ARGENX SE

Tags

hematologic-oncology acute-myeloid-leukemia-(aml) higher-risk-myelodysplastic-syndromes-(hr-mds)

Company Identity

CIK0000882361
TickerAPTOF
ExchangeOTC
SIC2836: Biological Products, (No Diagnostic Substances)
IncorporatedA6
HeadquartersSan Diego, California

Get More Data

This is a static snapshot. For live, structured JSON with cryptographic provenance chain:

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JSON Profile Stock Quote Origin Record
Origin Provenance
page leaf: 4962f081474c14c14ccc6905b1f6ef768e06321d24569cdaf894df78d5371671
parent: ce00a88bbeec91f9032b230878b611b1c5b21d996c6d803223792046ff0331b2
content hash: 69aaa3d14f9023c652bbadccd5500252a86572f595f017e7537ece988b621007
signed: 2026-09-30T12:00:20.445Z
sources: 20 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
verify: sha256(content_hash + parent + timestamp) = leaf

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API: GET https://origin.rootz.global/api/company/APTOF (~200 tokens, structured JSON with cryptographic provenance)
Tools: origin_company, origin_profile, origin_timeline, origin_filings, origin_quote, origin_transcripts, origin_search, origin_person, origin_skill
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