Keith Meister, Eric Mandelblatt Step Down from Williams Companies (WMB) Board

Names of
Reporting Persons

CORVEX MANAGEMENT LP

Check the Appropriate Box If a Member
of a Group (See Instructions)

a.  x        b.  ¨

SEC Use Only

Source of Funds (See Instructions)

OO

Check Box If Disclosure of Legal
Proceedings Is Required Pursuant to Items 2(d) or 2(e)  ¨

Citizenship or Place of
Organization

DELAWARE

Number of

Shares

Beneficially

Owned By

Each

Reporting

Person

With

Sole Voting Power

41,682,960*

Shared Voting Power

0

Sole Dispositive Power

41,682,960*

Shared Dispositive Power

0

Aggregate Amount Beneficially Owned by Each Reporting Person

62,682,960*

Check Box If the Aggregate Amount in
Row (11) Excludes Certain Shares (See Instructions)  ¨

Percent of Class Represented By Amount
in Row (11)

8.4*%

Type of Reporting Person (See
Instructions)

PN; IA