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AI filing briefs · archive

8-K filings in March 2023, explained

4 material Form 8-K filings that 3 companies we cover made with the SEC in March 2023, each read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). All of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).

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MLGOMicroAlgo Inc. Mar 17, 9:00 AM ET

MicroAlgo replaces auditor Marcum with OneStop Assurance effective March 16, 2023

Neutral leadership Written later 4.01

MicroAlgo Inc. (MLGO) said Marcum LLP stopped serving as its independent auditor on March 16, 2023, after its engagement letter was terminated, and that it engaged OneStop Assurance PAC as its new independent registered public accounting firm the same day. The filing states there were no disagreements with Marcum and no reportable events, and that no audit report was issued by Marcum after September 30, 2022. Auditor changes can matter to shareholders because they affect who reviews the company's financial statements going forward.

  • Marcum LLP ceased as independent auditor on March 16, 2023, due to termination of the engagement letter.
  • OneStop Assurance PAC was engaged as independent registered public accounting firm on March 16, 2023, approved by the Audit Committee and the Board.
  • The filing states there were no disagreements with Marcum and no reportable events in the two most recent fiscal years and the interim period through March 16, 2023.
  • Marcum's letter to the SEC, dated March 17, 2023, is filed as Exhibit 16.1.
Read the filing on SEC.gov ↗

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.

Briefs marked “Written later” were written in November 2026 for filings that were by then more than three weeks old, so months before mid-October 2026 hold a selection: every material 8-K of the past year for the 100 largest companies we cover and the last 15 important 8-Ks of every other one. Briefs the number check holds back are not shown or counted. Also: the last 45 days, briefs by company, A–Z and the live SEC filings wire.