---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-23-035996"
form_type: "8-K"
ticker: "MNTS"
cik: "0001781162"
company_name: "Momentus Inc."
filed_at: "2023-07-25T23:59:59+00:00"
generated_at: "2026-06-13T03:17:17.756130+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Momentus auditor Armanino resigns; board reduces stockholder quorum requirement

## Summary
- Armanino LLP resigned as Momentus' independent auditor effective after Q3 2023 filing, citing transition away from public company audits.
- No disagreements or reportable events in fiscal years 2021 and 2022; audit reports were unqualified.
- Company is in process of selecting a new independent registered public accounting firm.
- Board approved amendment to bylaws reducing stockholder meeting quorum from majority to one-third of voting power.
- Amendment effective immediately; described in Exhibit 3.1.

## SEC filing metadata
- accession: 0001140361-23-035996
- form_type: 8-K
- ticker: MNTS
- cik: 0001781162
- company_name: Momentus Inc.
- filed_at: 2023-07-25T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 4.01, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781162/000114036123035996/0001140361-23-035996-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781162/000114036123035996/brhc20056305_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-23-035996
- JSON: https://secwatch.observer/filing/0001140361-23-035996.json
- Plain text: https://secwatch.observer/filing/0001140361-23-035996.txt

## Key facts
- Governance Changes
  Momentus Inc.: Decreased quorum requirement for stockholder meetings from a majority to one-third of voting power (effective 2023-07-19).
  - Change: bylaw amendment
  - Effective: 2023-07-19
  source text: On July 19, 2023, the Board of Directors of the Company approved a first amendment (the “First Amendment”) to the Company’s Amended and Restated Bylaws, effective immediately, to modify Article I, Section 1.5 to decrease the quorum requirement for the transaction of business at meetings of stockholders from the holders of a majority of the voting power of the shares of stock issued and outstanding and entitled to vote at the meeting, present in person or represented by proxy, to the holders of one-third (1/3rd) of the voting power of the shares of stock issued and outstanding and entitled to vote at the meeting, present in person or represented by proxy.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781162/000114036123035996/0001140361-23-035996-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.