The shares of Williams Companies Inc (NYSE:WMB) skyrocketed by 18.25% during the week after receiving an unsolicited buyout offer from Energy Transfer Equity LP (NYSE:ETE). Williams rejected the buyout offer that valued the company at $48 billion or $64 per share, saying that the offer “significantly undervalues” the energy infrastructure company. Williams Companies Inc (NYSE:WMB) made an announcement on June 22 that it would explore strategic alternatives after the buyout offer. It is important to understand that Energy Transfer Equity LP (NYSE:ETE)’s offer is contingent on the termination of Williams Companies Inc’s acquisition of Williams Partners LP (NYSE:WPZ). Williams Partners LP and Williams Companies Inc entered into a definitive agreement on May 13 under which, Williams Companies Inc was to acquire all the outstanding common shares of Williams Partners LP. The energy infrastructure provider is likely to continue with its acquisition plan while looking for suitable alternatives. The hedge funds in our database have upped their net stake in Williams Companies Inc (NYSE:WMB) as of the latest 13F reporting period of March 31, as compared to the previous quarter, with net investments of $6.62 billion against previously-held investments of $6.49 billion. However, the number of hedge funds holding positions in the company has fallen to 60 against the previous figure of 77. Keith Meister of Corvex Capital owned 41.68 million shares of Williams Companies Inc with a market value of $2.11 billion at the end of the first quarter of 2015. Francis Billings, Senior Vice President at Williams Companies, has made the largest insider sale during 2015, selling 66,694 shares on May 14, followed by Robyn Ewing’s sale of 33,865 shares on March 2.