---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-030041"
form_type: "8-K"
ticker: "HZO"
cik: "0001057060"
company_name: "MARINEMAX INC"
filed_at: "2024-03-12T23:59:59+00:00"
generated_at: "2026-06-04T22:46:01.840671+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# MarineMax discloses cybersecurity incident with unauthorized access to IT environment; operations continue

## Summary
- Third party gained unauthorized access to portions of MarineMax's information environment; incident detected March 10, 2024.
- Company activated incident response protocols; containment measures caused some business disruption but operations continue materially.
- No sensitive data maintained in impacted environment; investigation ongoing with external cybersecurity experts and law enforcement notified.
- As of filing, incident has not had material impact on operations; company still assessing potential impact on financial condition.
- MarineMax (HZO) filed Item 1.05 8-K; no further specifics on scope or remediation timeline provided.

## SEC filing metadata
- accession: 0000950170-24-030041
- form_type: 8-K
- ticker: HZO
- cik: 0001057060
- company_name: MARINEMAX INC
- filed_at: 2024-03-12T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1057060/000095017024030041/0000950170-24-030041-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057060/000095017024030041/hzo-20240310.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-030041
- JSON: https://secwatch.observer/filing/0000950170-24-030041.json
- Plain text: https://secwatch.observer/filing/0000950170-24-030041.txt

## Key facts
- Cybersecurity Incidents
  MARINEMAX INC disclosed a cybersecurity incident: unauthorized third-party access to portions of its information environment. Impact: containment measures resulted in some disruption to a portion of the business; operations continued in all material respects; incident has not had a material impact on operations; still determining if reasonably likely to materially impact financial conditions or results. Materiality is still being assessed. Discovered 2024-03-10.
  - Nature: unauthorized third-party access to portions of its information environment
  - Impact: containment measures resulted in some disruption to a portion of the business; operations continued in all material respects; incident has not had a material impact on operations; still determining if reasonably likely to materially impact financial conditions or results
  - Materiality: assessing
  - Discovery: 2024-03-10
  source text: determined on March 10, 2024, that it experienced a “cybersecurity incident,” as defined in applicable Securities and Exchange Commission rules, whereby a third party gained unauthorized access to portions of its information environment
  evidence_url: https://www.sec.gov/Archives/edgar/data/1057060/000095017024030041/0000950170-24-030041-index.htm

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