CARMICHAEL DAVID M 4

4 · Ensco plc · Filed May 26, 2010

Form 4

Period: 2010-05-25

Director

Transactions

Other
Non-Employee Director Stock Option (Right to Buy)
2010-05-25$50.28/sh+4,500$226,260→ 4,500 total
Exercise: $50.28From: 2006-06-01Exp: 2013-06-01→ American Depositary Shares (4,500 underlying)
Other
American Depositary Shares
2010-05-25$38.99/sh+12,320$480,357→ 12,320 total
Other
Non-Employee Director Stock Option (Right to Buy)
2010-05-25$60.74/sh+4,500$273,330→ 4,500 total
Exercise: $60.74From: 2007-06-01Exp: 2014-06-01→ American Depositary Shares (4,500 underlying)

Footnotes (4)

[F1]No changes in benefical ownership of securities have taken place. This filing has been accomplished to reflect the total beneficial ownership of Ensco securities at retirmement from the Ensco Board of Directors on May 25, 2010.
[F2]Amount is representative of all beneficially owned American Depositary Shares and All Non-Employee Director Restricted Stock Grants, which vested on May 25, 2010, at retirement from the Ensco Board of Directors.
[F3]Amount is representative of a Non-Employee Director Stock Option, which was fully vested at grant date, and outstanding on May 25, 2010 at retirement from the Ensco Board of Directors. The Non-Employee Director Stock Option is exerciable until June 1, 2013.
[F4]Amount is representative of a Non-Employee Director Stock Option, which was fully vested at grant date, and outstanding on May 25, 2010 at retirement from the Ensco Board of Directors. The Non-Employee Director Stock Option is exerciable until June 1, 2014.

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