De'Angelo Alexander is transferring from Oklahoma to Charlotte, while Marquette also grabbed a transfer.
Oklahoma signed a homegrown guard, while Arizona inked a 7-2 center from Nigeria.
The Sooners picked up a guard transfer from UC-Riverside, while Xavier signed a super guard/forward prospect.
Top 100 prospect Malik Hairston will announce his decision Wednesday, while Chester Giles and Alex Galindo are considering their options.
South Carolina picked up a pledge from guard Roderick Trice and guard Kris Collins committed to New Mexico.
Heralded forward Rudy Gay will attend UConn instead of opting for the draft, while OU signed one prospect but lost one player.
Dwight Howard, the nation's top high school prospect, announced that he will turn professional, but still enroll in college.
Temple and South Carolina picked up pledges from guards, while Baylor and Michigan State lost commits.