Two of the robberies were in Juniata County, one was in Snyder and there was an attempted robbery in Snyder County.
Police said he was traveling in a white Ford Escort stolen from Lewistown, but that car has since been recovered.
Here's a list of the incidents:
First National Bank Thompsontown, PA (Juniata County) occurred 10/22/12 at 3:36 P.M.
Juniata Valley Bank, Port Royal, PA (Juniata County) occurred 10/27/12 at 08:36 A.M
Swineford National Bank, Beaver Springs, PA (Snyder County) occurred 11/05/12
Mifflin County Savings Bank, McClure, PA (Snyder County) occurred 11/05/12 (attempted robbery)
The suspect is a thin white, male approx. 5 feet 9 in to 6 foot in height. The subject did not display a weapon or threaten bank staff. Call State Police in Lewistown with information. 717-320-1010