---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-26-014365"
form_type: "8-K"
ticker: "MNTS"
cik: "0001781162"
company_name: "Momentus Inc."
filed_at: "2026-04-13T23:59:59+00:00"
generated_at: "2026-05-15T06:36:01.199286+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Momentus' Vigoride-7 fires all thrusters, achieves key mission milestones

## Summary
- Separated from SpaceX Transporter-16 at ~520 km altitude; autonomous power-on and solar array deployment succeeded.
- Two-way communication established with San Jose Mission Operations Center; spacecraft and hosted payloads healthy.
- Main water propulsion tank pressurized; 8 redundant RCS thrusters activated for fine attitude control.
- ACS dampened rotation rates; next phase: orbit-lowering maneuver for payload operations.
- CEO John Rood called mission 'action-packed and technically demanding,' further updates to follow.

## SEC filing metadata
- accession: 0001140361-26-014365
- form_type: 8-K
- ticker: MNTS
- cik: 0001781162
- company_name: Momentus Inc.
- filed_at: 2026-04-13T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1781162/000114036126014365/0001140361-26-014365-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1781162/000114036126014365/ef20070362_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-26-014365
- JSON: https://secwatch.observer/filing/0001140361-26-014365.json
- Plain text: https://secwatch.observer/filing/0001140361-26-014365.txt

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