Reports in both the Wall Street Journal and the New York Times this morning indicate that Sabre Holdings may announce as early as this week that it has agreed to be taken private.

Citing unnamed sources, the papers indicated Sabre could be valued at more than $4 billion, a premium on its current market capitalization of about $3.7 billion.

The Journal reported the most likely suitors as being private-equity groups, but also mentioned Amadeus as a potential player.

According to the Times, “The bidding group favored to win the auction includes Silver Lake Partners and Texas Pacific Group; a rival bidding group is led by Apollo Group. The people involved in the talks said a third group of investors is also considering a bid.”