Transaction Details

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.31 to $4.34, inclusive. The reporting person undertakes to provide Transocean Ltd. (the "Company"), any security holder of the Company, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4. | The amount of securities beneficially owned following the reported transaction reflects a prior transfer of shares to the reporting person's former spouse pursuant to a domestic relations order.