X0303 4 2008-11-18 0 0001029299 DELTEK, INC PROJ 0001407196 Singh Alok C/O NEW MOUNTAIN CAPITAL, L.L.C. 787 SEVENTH AVENUE, 49TH FLOOR NEW YORK NY 10019 1 0 0 1 See Note (9) Below Common Stock 2008-11-18 4 P 0 9138 3.9794 A 25211341 I See Note Common Stock 2008-11-18 4 P 0 158 3.9794 A 25211341 I See Note Common Stock 2008-11-18 4 P 0 704 3.9794 A 25211341 I See Note Common Stock 2008-11-19 4 P 0 9137 3.9453 A 25221341 I See Note Common Stock 2008-11-19 4 P 0 159 3.9453 A 25221341 I See Note Common Stock 2008-11-19 4 P 0 704 3.9453 A 25221341 I See Note The securities purchased are directly owned by New Mountain Partners II, L.P. Following the reported transaction, New Mountain Partners II, L.P. directly owns 23,035,169 shares of common stock of the issuer. The securities purchased are directly owned by New Mountain Affiliated Investors II, L.P. Following the reported transaction, New Mountain Affiliated Investors II, L.P. directly owns 400,171 shares of common stock of the issuer. The securities purchased are directly owned by Allegheny New Mountain Partners, L.P. Following the reported transaction, Allegheny New Mountain Partners, L.P. directly owns 1,776,001 shares of common stock of the issuer. The securities purchased are directly owned by New Mountain Partners II, L.P. Following the reported transaction, New Mountain Partners II, L.P. directly owns 23,044,306 shares of common stock of the issuer. The securities purchased are directly owned by New Mountain Affiliated Investors II, L.P. Following the reported transaction, New Mountain Affiliated Investors II, L.P. directly owns 400,330 shares of common stock of the issuer. The securities purchased are directly owned by Allegheny New Mountain Partners, L.P. Following the reported transaction, Allegheny New Mountain Partners, L.P. directly owns 1,776,705 shares of common stock of the issuer. The price reported is a weighted average price. The prices actually paid ranged from $3.87 to $4.11. The reporting person will provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, information regarding the number of shares purchased at each price within the range. The price reported is a weighted average price. The prices actually paid ranged from $3.89 to $4.00. The reporting person will provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, information regarding the number of shares purchased at each price within the range. New Mountain Partners II, L.P., New Mountain Affiliated Investors II, L.P., and Allegheny New Mountain Partners, L.P. (collectively, the "New Mountain Funds") are managed by New Mountain Capital, L.L.C. Alok Singh is a managing director of New Mountain Capital, L.L.C. Mr. Singh disclaims beneficial ownership of the shares of common stock owned by the New Mountain Funds, except to the extent of his pecuniary interest therein. /s/ Steven Klinsky, Attorney-in-Fact 2008-11-20