---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-25-045491"
form_type: "8-K"
ticker: "MNTS"
cik: "0001781162"
company_name: "Momentus Inc."
filed_at: "2025-12-15T23:59:59+00:00"
generated_at: "2026-05-16T13:14:36.214045+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Momentus announces 1-for-17.85 reverse stock split to meet Nasdaq $1 bid price

## Summary
- Reverse stock split at 1-for-17.85 effective Dec 17, 2025; shares trade split-adjusted Dec 18 under symbol MNTS.
- Outstanding shares reduced from ~25M to ~1.4M; fractional shares rounded up to nearest whole share.
- Split intended to satisfy Nasdaq minimum bid price requirement of $1.00 per share for continued listing.
- Company cancelled Dec 15 special meeting due to lack of quorum; meeting had been adjourned from Nov 24.
- Public warrants (MNTSW) and outstanding equity awards/plans proportionately adjusted.

## SEC filing metadata
- accession: 0001140361-25-045491
- form_type: 8-K
- ticker: MNTS
- cik: 0001781162
- company_name: Momentus Inc.
- filed_at: 2025-12-15T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 3.03, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781162/000114036125045491/0001140361-25-045491-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781162/000114036125045491/ef20061090_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-25-045491
- JSON: https://secwatch.observer/filing/0001140361-25-045491.json
- Plain text: https://secwatch.observer/filing/0001140361-25-045491.txt

## Key facts
- Governance Changes
  Momentus Inc.: Approved a 1-for-17.85 reverse stock split and will file a certificate of amendment to the certificate of incorporation to effect the split (effective 2025-12-17).
  - Change: charter amendment
  - Effective: 2025-12-17
  source text: The Company will effect the Reverse Stock Split pursuant to the Company’s filing of a certificate of amendment to the Company’s certificate of incorporation (the “Certificate”) with the Delaware Secretary of State effective 5:00 p.m. Eastern Time, on December 17, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781162/000114036125045491/0001140361-25-045491-index.htm

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