---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-043182"
form_type: "8-K"
ticker: "CUK"
cik: "0001125259"
company_name: "CARNIVAL PLC"
filed_at: "2023-04-07T23:59:59+00:00"
generated_at: "2026-06-17T04:28:31.867102+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Michael Thamm leaves Carnival Corp as CEO of Costa Group and Asia

## Summary
- Michael Thamm, Group CEO of Costa Group and Carnival Asia, departs effective April 5, 2023.
- Thamm was a named executive officer; no reason for departure was disclosed.
- No successor has been announced in the filing.

## SEC filing metadata
- accession: 0001104659-23-043182
- form_type: 8-K
- ticker: CUK
- cik: 0001125259
- company_name: CARNIVAL PLC
- filed_at: 2023-04-07T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1125259/000110465923043182/0001104659-23-043182-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/815097/000110465923043182/tm2311942d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-043182
- JSON: https://secwatch.observer/filing/0001104659-23-043182.json
- Plain text: https://secwatch.observer/filing/0001104659-23-043182.txt

## Key facts
- Executive change
  Michael Thamm departed as Group Chief Executive Officer of Costa Group and Carnival Asia at CARNIVAL PLC.
  - Action: is no longer with
  - Role: Group Chief Executive Officer of Costa Group and Carnival Asia
  source text: Michael Thamm, Group Chief Executive Officer of Costa Group and Carnival Asia and a named executive officer of Carnival Corporation and Carnival plc (together, the “Companies”), is no longer with the Companies effective as of April 5, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1125259/000110465923043182/0001104659-23-043182-index.htm

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