---
schema_version: "secwatch.filing_event.v1"
accession: "0001849820-25-000304"
form_type: "8-K"
ticker: "KITT"
cik: "0001849820"
company_name: "Nauticus Robotics, Inc."
filed_at: "2025-12-09T23:59:59+00:00"
generated_at: "2026-05-16T13:50:10.736027+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Nauticus Robotics issues 3,814 Series C preferred shares in exchange for existing convertible debt

## Summary
- On Dec 3, 2025, Nauticus exchanged portions of secured convertible term loans and senior secured debentures due 2026 for 3,814 Series C preferred shares.
- Three institutional investors participated in the exchange, which closed on December 3, 2025.
- Series C preferred stock issued under exemption from registration per Section 3(a)(9) of the Securities Act.
- Certificate of Designations for Series C preferred filed with Delaware Secretary of State.

## SEC filing metadata
- accession: 0001849820-25-000304
- form_type: 8-K
- ticker: KITT
- cik: 0001849820
- company_name: Nauticus Robotics, Inc.
- filed_at: 2025-12-09T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 5.03, 3.02, 3.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1849820/000184982025000304/0001849820-25-000304-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1849820/000184982025000304/kitt-20251203.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001849820-25-000304
- JSON: https://secwatch.observer/filing/0001849820-25-000304.json
- Plain text: https://secwatch.observer/filing/0001849820-25-000304.txt

## Key facts
- Governance Changes
  Nauticus Robotics, Inc.: Filed Certificate of Designation for Series C Convertible Preferred Stock to create a new series of preferred stock in connection with exchange agreements with institutional investors (effective 2025-12-03).
  - Change: charter amendment
  - Effective: 2025-12-03
  source text: On December 3, 2025, the Company filed a certificate of designations with respect to the Series C Preferred Stock with the Secretary of State of the State of Delaware, and the Company and three (3) institutional investors closed the Exchange.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1849820/000184982025000304/0001849820-25-000304-index.htm

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