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AmBase Corp (ABCP) red flags

CIK 0000020639 路 Coral Springs, FL 路 SIC 6512 路 All EDGAR filings

7 verified red-flag event(s) since 2025-04-01. Red flag score: 56 how it's calculated

3AmBase Corp (ABCP) Going-concern doubt (10-Q)nano2026-08-12
quarterly (unaudited) disclosure 路 company history
3AmBase Corp (ABCP) Going-concern doubt (10-Q)nano2026-05-11
quarterly (unaudited) disclosure 路 company history
5AmBase Corp (ABCP) Going-concern doubtnano2026-03-30
in auditor's report 路 company history
3AmBase Corp (ABCP) Going-concern doubt (10-Q)nano2025-11-06
quarterly (unaudited) disclosure 路 company history
3AmBase Corp (ABCP) Going-concern doubt (10-Q)nano2025-08-13
quarterly (unaudited) disclosure 路 company history
4AmBase Corp (ABCP) Going-concern doubt (10-Q)nano2025-05-13
quarterly (unaudited) disclosure; also within 90 days: Auditor change 路 company history
2AmBase Corp (ABCP) Auditor changenano2025-04-22
routine: audit firm merged/was acquired; also within 90 days: Going-concern doubt 路 company history

Red flag score: 56 / 100 · high

Computed only from the verified red flags below: each flag earns points for its severity, loses half its weight every 180 days, and companies with several different flag types in the past year get a bonus. Total points 40.9 → score = 100 × (1 − e−points/50) = 56. Full method

FlagFiledSeverityPointsAgeDecayCounts
Going-concern doubt2026-08-123/514.067 d×0.7710.8
Going-concern doubt2026-05-113/514.0160 d×0.547.6
Going-concern doubt2026-03-305/530.0202 d×0.4613.8
Going-concern doubt2025-11-063/514.0346 d×0.263.7
Going-concern doubt2025-08-133/514.0431 d×0.192.7
Going-concern doubt2025-05-133/514.0523 d×0.131.9
Auditor change2025-04-221/54.0544 d×0.120.5

The red flag score summarizes how many, how serious and how recent a company's verified SEC red-flag filings are. It describes filing events only. It is not a fraud score, credit rating or prediction, and not investment advice.

What happened next

FlagDateCap at flag30d90d180d
Going-concern doubt2026-08-12$20.4M+10.8%pendingpending
Going-concern doubt2026-05-11$17.0M+27.4%+35.0%pending
Going-concern doubt2026-03-30$13.6M+35.5%+69.4%+83.9%
Going-concern doubt2025-11-06$20.4M-5.2%-19.1%+6.4%
Going-concern doubt2025-08-13$25.5M-6.0%-25.8%-36.2%
Going-concern doubt2025-05-13$24.6M-0.3%+0.3%-16.1%
Auditor change2025-04-22$24.8M+1.3%-1.3%-5.6%

Stock return after each flag; pending = window not yet elapsed; n/a = no price data.

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