---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-25-034600"
form_type: "8-K"
ticker: "MNTS"
cik: "0001781162"
company_name: "Momentus Inc."
filed_at: "2025-09-11T23:59:59+00:00"
generated_at: "2026-05-17T06:53:35.380453+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Momentus amends convertible notes with SIV, extends maturity, issues warrants for 2M shares

## Summary
- Extended maturity of October 2024 note from Oct 2025 to Mar 2026; $1.0M due Dec 2025, remainder $1.7M plus interest at maturity.
- Extended July 2024 note maturity on remaining $300,196 principal to Dec 2025; conversion price set to lower of $1.11/sh or 10% discount to closing (floor $0.20).
- Issued warrants for 2,000,000 shares at $1.11; lowered exercise price on existing 463,223 warrants to $1.11.
- SIV agreed to use reasonable efforts to convert; daily trading volume limits of 15% (at $1.11 conversions) or 10% (at lower prices).
- Company must obtain Nasdaq stockholder approval by Nov 8, 2025; file resale registration statement within 30 days.

## SEC filing metadata
- accession: 0001140361-25-034600
- form_type: 8-K
- ticker: MNTS
- cik: 0001781162
- company_name: Momentus Inc.
- filed_at: 2025-09-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781162/000114036125034600/0001140361-25-034600-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781162/000114036125034600/ef20055431_form8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-25-034600
- JSON: https://secwatch.observer/filing/0001140361-25-034600.json
- Plain text: https://secwatch.observer/filing/0001140361-25-034600.txt

## Key facts
- Equity Issuances
  Momentus Inc. issued up to 2,000,000 shares of Common Stock of warrant to Space Infrastructures Ventures, LLC.
  - Security: warrant
  - Shares: up to 2,000,000 shares of Common Stock
  - Purchaser: Space Infrastructures Ventures, LLC
  source text: the Company issued to SIV warrants to purchase up to 2,000,000 shares of Common Stock at an exercise price of $1.11.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1781162/000114036125034600/0001140361-25-034600-index.htm

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