ALT5 Sigma Corp Changes Independent Auditor
Ticker: ALTS · Form: 8-K · Filed: Dec 9, 2025 · CIK: 862861
Sentiment: neutral
Topics: auditor-change, accounting
TL;DR
ALT5 Sigma swapped auditors from Marcum LLP to WithumSmith+Brown, PC on Dec 8, 2025.
AI Summary
ALT5 Sigma Corporation announced on December 8, 2025, a change in its certifying accountant. The company has engaged WithumSmith+Brown, PC as its new independent registered public accounting firm, effective December 8, 2025. This change follows the resignation of the previous auditor, Marcum LLP.
Why It Matters
A change in auditors can signal potential issues or a strategic shift, and investors will want to understand the reasons behind the change and the reputation of the new auditor.
Risk Assessment
Risk Level: medium — Changes in auditors can sometimes precede or coincide with financial reporting issues or a change in business strategy, warranting closer scrutiny.
Key Players & Entities
- ALT5 Sigma Corporation (company) — Registrant
- WithumSmith+Brown, PC (company) — New Certifying Accountant
- Marcum LLP (company) — Former Certifying Accountant
- December 8, 2025 (date) — Effective date of auditor change
FAQ
When did the change in certifying accountant become effective?
The change in certifying accountant became effective on December 8, 2025.
Who is the new independent registered public accounting firm for ALT5 Sigma Corporation?
The new independent registered public accounting firm is WithumSmith+Brown, PC.
Who was ALT5 Sigma Corporation's previous independent registered public accounting firm?
ALT5 Sigma Corporation's previous independent registered public accounting firm was Marcum LLP.
Did the former accountant resign or was it dismissed?
The filing states that Marcum LLP resigned as the company's independent registered public accounting firm.
Has the company had any disagreements with its former accountant that led to the change?
The filing does not indicate any disagreements between ALT5 Sigma Corporation and Marcum LLP.
Filing Stats: 528 words · 2 min read · ~2 pages · Grade level 14.7 · Accepted 2025-12-09 06:04:55
Key Financial Figures
- $0.001 — ch registered Common stock (par value $0.001 per share) ALTS The Nasdaq Stock Ma
Filing Documents
- form8-k.htm (8-K) — 35KB
- 0001493152-25-026752.txt ( ) — 196KB
- alts-20251208.xsd (EX-101.SCH) — 3KB
- alts-20251208_lab.xml (EX-101.LAB) — 33KB
- alts-20251208_pre.xml (EX-101.PRE) — 22KB
- form8-k_htm.xml (XML) — 4KB
SIGNATURES
SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ALT5 SIGMA CORPORATION Date: December 9, 2025 By: /s/ Steven M. Plumb, CPA Steven M. Plumb Chief Financial Officer