---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-015040"
form_type: "8-K"
ticker: "MNTS"
cik: "0001781162"
company_name: "Momentus Inc."
filed_at: "2024-03-25T23:59:59+00:00"
generated_at: "2026-06-04T08:34:23.916067+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Momentus appoints Lon Ensler as interim CFO; Eric Williams resigns; special meeting cancelled

## Summary
- Eric Williams resigns as CFO effective April 1, 2024; appointed May 2023.
- Lon Ensler named interim CFO effective April 2, 2024, at $340 per hour.
- Special meeting of stockholders cancelled due to lack of quorum.
- Ensler brings 30+ years financial leadership; currently CFO of Ziteo Medical.

## SEC filing metadata
- accession: 0001140361-24-015040
- form_type: 8-K
- ticker: MNTS
- cik: 0001781162
- company_name: Momentus Inc.
- filed_at: 2024-03-25T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781162/000114036124015040/0001140361-24-015040-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781162/000114036124015040/ef20025043_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-015040
- JSON: https://secwatch.observer/filing/0001140361-24-015040.json
- Plain text: https://secwatch.observer/filing/0001140361-24-015040.txt

## Key facts
- Executive change
  Eric Williams resigned as Chief Financial Officer at Momentus Inc..
  - Action: resigned
  - Role: Chief Financial Officer
  source text: Mr. Ensler will assume the responsibilities of current Chief Financial Officer Eric Williams, who tendered his resignation from the Company on March 19, 2024, to be effective end of day April 1, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781162/000114036124015040/0001140361-24-015040-index.htm
- Executive change
  Lon Ensler was appointed as Interim Chief Financial Officer at Momentus Inc..
  - Action: appointed
  - Role: Interim Chief Financial Officer
  source text: On March 25, 2024, Momentus Inc. (the “Company”), announced the appointment of Lon Ensler, age 65, as the interim Chief Financial Officer of the Company, effective on April 2, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781162/000114036124015040/0001140361-24-015040-index.htm

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