---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-097037"
form_type: "8-K"
ticker: "NP"
cik: "0002067129"
company_name: "Neptune Insurance Holdings Inc."
filed_at: "2025-10-07T23:59:59+00:00"
generated_at: "2026-05-17T04:31:15.057093+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Neptune Insurance Holdings closes IPO, adopts amended governing documents

## Summary
- IPO closed on October 2, 2025; charter and bylaws amendments effective at closing.
- Second amended and restated certificate of incorporation filed with Delaware.
- Board and stockholders previously approved amendments for IPO closing.
- Full description of capital stock and provisions in September 30, 2025 prospectus.

## SEC filing metadata
- accession: 0001213900-25-097037
- form_type: 8-K
- ticker: NP
- cik: 0002067129
- company_name: Neptune Insurance Holdings Inc.
- filed_at: 2025-10-07T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2067129/000121390025097037/0001213900-25-097037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2067129/000121390025097037/ea0260295-8k_neptune.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-097037
- JSON: https://secwatch.observer/filing/0001213900-25-097037.json
- Plain text: https://secwatch.observer/filing/0001213900-25-097037.txt

## Key facts
- Governance Changes
  Neptune Insurance Holdings Inc.: Second amended and restated certificate of incorporation became effective in connection with IPO closing (effective 2025-10-02).
  - Change: charter amendment
  - Effective: 2025-10-02
  source text: On October 2, 2025, Neptune Insurance Holdings Inc. (the “Company”) filed its second amended and restated certificate of incorporation (the “Certificate of Incorporation”) with the Secretary of State of the State of Delaware, and its second amended and restated bylaws (the “Bylaws”) became effective
  evidence_url: https://www.sec.gov/Archives/edgar/data/2067129/000121390025097037/0001213900-25-097037-index.htm
- Governance Changes
  Neptune Insurance Holdings Inc.: Second amended and restated bylaws became effective in connection with IPO closing (effective 2025-10-02).
  - Change: bylaw amendment
  - Effective: 2025-10-02
  source text: On October 2, 2025, Neptune Insurance Holdings Inc. (the “Company”) filed its second amended and restated certificate of incorporation (the “Certificate of Incorporation”) with the Secretary of State of the State of Delaware, and its second amended and restated bylaws (the “Bylaws”) became effective
  evidence_url: https://www.sec.gov/Archives/edgar/data/2067129/000121390025097037/0001213900-25-097037-index.htm

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