In a 13D filing with the SEC, Ackman disclosed a 9.98% stake (115.56 million shares) in Fannie Mae and a 9.77% stake (63.5 million shares) in Freddie Mac. A 13 D filing is usually made by activist investors.
Pershing Square said it deems the stocks of the government-sponsored enterprises or GSEs as "undervalued" and an "attractive investment".
Further, in light of Fairholme Fund's offer on behalf of preferred stockholders to buy out parts of the GSEs, disclosed on Wednesday, Pershing Square said it would engage in discussions with management, board members, other stockholders and government.
Shares of Fannie Mae and Freddie Mac, which were taken into conservatorship in 2008, have soared over the past year, as the agencies returned to profitability. By December, the companies would have paid out nearly all of the $188 billion in bailout money through dividends.
But there is no repayment mechanism under the conservatorship agreement which means that the agencies continue to be stuck in limbo. Junior preferred stockholders and common shareholders are unlikely to get a penny of the profits unless the agencies are recapitalized. But there is bipartisan consensus in Congress that the agencies should be wound down.
Institutional investors including Fairholme's Berkowitz and hedge funds such as Perry Capital are suing the government, arguing that the terms of the conservatorship agreement have been violated and that shareholders have a right to the profits.
Although analysts believe that the investors are disregarding political reality, shares of Fannie Mae and Freddie Mac preferreds are up over 400% this year as investors bet that they will win in court.
Fairholme's latest offer however is a twist in the tale as it tried to answer the broad call for more private capital in housing finance.
But even so, analysts believe Congress will reject the fund's proposal. "No matter the type of fund -- hedge, mutual, or private equity -- the bulk of lawmakers will publicly distance themselves from any proposal which could be framed as 'enriching' money managers no matter its merits," Isaac Boltansky, analyst with Compass Point, wrote in a note.