Transocean Ltd. — PRE 14A Filings
15 PRE 14A filings on record
This page lists all PRE 14A filings submitted to the SEC by Transocean Ltd. (RIG), sorted by most recent first. Each row links to the full filing on EdgarLookup. Transocean Ltd. has filed 15 PRE 14A documents with the SEC since 2015. To view all SEC filings by Transocean Ltd., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
144
144/A
25-NSE
3
3/A
4
4/A
424B3
424B5
424B7
425
5
8-A12B
8-K
8-K/A
8-K12G3
ARS
CORRESP
DEF 14A
DEFA14A
DEFC14A
DFAN14A
EFFECT
FWP
NO ACT
NT 10-K
PRE 14A
PRE 14C
PREC14A
PRER14A
PRRN14A
S-3ASR
S-4
S-4/A
S-4MEF
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| PRE 14A | PRE 14A | 0001104659-26-032721 | Mar 20, 2026 | May 22, 2026 |
| PRE 14A | PRE 14A | 0001451505-25-000024 | Mar 21, 2025 | — |
| PRE 14A | PRE 14A | 0001451505-24-000024 | Mar 15, 2024 | — |
| PRE 14A | PRE 14A | 0001451505-23-000035 | Mar 10, 2023 | — |
| PRE 14A | PRE 14A | 0001558370-20-001977 | Mar 3, 2020 | — |
| PRE 14A | PRE 14A | 0001558370-18-001724 | Mar 8, 2018 | Mar 7, 2018 |
| PRE 14A | PRE 14A | 0001558370-17-007253 | Oct 4, 2017 | Oct 3, 2017 |
| PRE 14A | — | 0001558370-16-003903 | Mar 8, 2016 | — |
| PRE 14A | PRE 14A | 0001451505-15-000138 | Sep 15, 2015 | — |
| PRE 14A | PRE 14A | 0001047469-14-006210 | Jul 15, 2014 | Sep 22, 2014 |
| PRE 14A | PRE 14A | 0001451505-14-000050 | Mar 21, 2014 | — |
| PRE 14A | PRE 14A | 0001047469-12-002129 | Mar 5, 2012 | May 18, 2012 |
| PRE 14A | PRE 14A | 0001047469-11-001671 | Mar 2, 2011 | May 13, 2011 |
| PRE 14A | PRE 14A | 0001047469-10-001646 | Mar 1, 2010 | May 14, 2010 |
| PRE 14A | PRE 14A | 0001047469-09-002428 | Mar 10, 2009 | May 15, 2009 |