X0303 4/A 2009-05-27 2009-05-29 0000018396 CDI CORP CDI 0000903921 GARRISON WALTER R C/O CDI CORP. 1717 ARCH ST., 35TH FLOOR PHILADELPHIA PA 19103-2768 1 0 0 1 Chairman of the Board Stock Purchase Plan Units 2009-05-27 4 A 0 6173 11.88 A 2012-05-27 2012-05-27 Common Stock 6173 6173 D Upon vesting, Stock Purchase Plan units convert into shares of Common Stock on a 1-for-1 basis. This was the closing price per share of Common Stock on the date that the Stock Purchase Plan units were acquired. This amendment reflects the correction of the Date Exercisible and the Expiration Date, which were originally reported as 05/27/2014. Craig H. Lewis as attorney-in-fact for Walter R. Garrison (pursuant to Power of Attorney previously filed) 2009-06-02