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AI brief of an SEC Form 8-K · Momentus Inc. (MNTS)

Momentus dismisses auditor Frank, Rimerman and engages Baker Tilly effective August 2026

Neutral Impact 3 of 5 other Written later

Momentus Inc. replaced its independent auditor, dismissing Frank, Rimerman + Co. LLP effective August 11, 2026, and appointing Baker Tilly US, LLP, which was engaged on August 12, 2026. The filing reports no disagreements with the former auditor and discloses a previously reported material weakness in internal control that the company says was remediated as of December 31, 2025.

Key points

  • Audit Committee approved the dismissal of Frank, Rimerman + Co. LLP on August 10, 2026, effective August 11, 2026.
  • Frank, Rimerman's report for the year ended December 31, 2024 included an explanatory paragraph on substantial doubt about the company's ability to continue as a going concern.
  • Baker Tilly US, LLP was appointed August 10, 2026 and the engagement agreement was executed August 12, 2026.
  • The 2024 Form 10-K disclosed a material weakness tied to misclassification errors, which the company says was remediated as of December 31, 2025.

The filing

CompanyMomentus Inc. (MNTS)
Form8-K, current report
Filed with the SECAug 14, 2026, 4:01 PM ET
Accession number0001140361-26-033135

Items reported: 4.01 Auditor Change

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 11:43 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on August 14, 2026.

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.