---
schema_version: "secwatch.filing_event.v1"
accession: "0001451505-25-000096"
form_type: "8-K"
ticker: "RIG"
cik: "0001451505"
company_name: "Transocean Ltd."
filed_at: "2025-09-24T23:59:59+00:00"
generated_at: "2026-05-17T05:45:59.298958+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Transocean plans 100M-share offering, proceeds to repay $655M notes due 2027

## Summary
- Offering 100M shares (par $0.10) with underwriter option for 15M more; Citigroup and Morgan Stanley book-running.
- Net proceeds to repay or redeem portion of $655M 8.00% Senior Notes due February 2027 issued by Transocean International Ltd.
- Remaining proceeds, if any, for general corporate purposes; shelf registration effective July 1, 2024.
- Offering subject to market conditions and SEC review; no assurance of completion or final terms.

## SEC filing metadata
- accession: 0001451505-25-000096
- form_type: 8-K
- ticker: RIG
- cik: 0001451505
- company_name: Transocean Ltd.
- filed_at: 2025-09-24T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1451505/000145150525000096/0001451505-25-000096-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1451505/000145150525000096/rig-20250924x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001451505-25-000096
- JSON: https://secwatch.observer/filing/0001451505-25-000096.json
- Plain text: https://secwatch.observer/filing/0001451505-25-000096.txt

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