According to the Associated Press, other large shareholders include Putnam Investment Management, with a 6% stake, and Bear Stearns Chief Executive JimmyCayneJimmy Cayne, with a 5.8% interest.

FORBES: Magazine Article

According to the Associated Press, other large shareholders include Putnam Investment Management, with a 6% stake, and Bear Stearns Chief Executive Jimmy Cayne , with a 5.8% interest.

FORBES: Bear Soars On Buffett Rumors

It's not clear what caused the spikes, but on Oct. 1 Kogan met with investment managers at Putnam Investments, a mutual fund company that is one of Schering's biggest shareholders.

FORBES: Magazine Article