10b5-1 Purchase Plan COUNSEL SHOULD BE CONSULTED PRIOR TO ITS USE. Purchase Plan, dated March 12, 2009 (the “Purchase Plan”), between Joseph Keithley (“Buyer”) and Thomas Weisel Partners LLC (“TWP”).Keithley Joseph P • March 12th, 2009
WHEREAS, the Buyer desires to establish this Purchase Plan to buy shares of common stock, no par value (the “Stock”), of Keithley Instruments (the “Issuer”); and
