Saturday Box Office: $25.42 Million

Fantasy Moguls is estimating that Transformers took in an additional $25.42 million in ticket sales for Saturday, bringing the total to $132.8 million for its 5.5 day take. They are also estimating that it might take in an additional $20.3 for Sunday so the week total might hit $153.1 million. If that estimate is correct "that would be the all-time 7th-best 7-day gross in modern box office history, and the best-ever for a non-sequel topping 2002’s original Spider-Man, which posted a $151.6M mark." As it stands, Transformers II is a lock, all that's left is an official announcement.
(source)