SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
New Mountain Investments II, LLC
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C.
787 SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
10/31/2007 		3. Issuer Name and Ticker or Trading Symbol
DELTEK, INC [ PROJ ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 29,079,580 I See Notes(1)
Class A Common Stock 100 I See Notes(1)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
1. Name and Address of Reporting Person*
New Mountain Investments II, LLC
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C.
787 SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
New Mountain Partners II L P
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C., 787
SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
New Mountain Affiliated Investors II LP
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C., 787
SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Allegheny New Mountain Partners L P
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C., 787
SEVENTH AVENUE, 49 FLOOR
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
KLINSKY STEVEN B
(Last) (First) (Middle)
C/O NEW MOUNTAIN CAPITAL, L.L.C., 787
SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK, 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
X Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
New Mountain Capital, L.L.C.
(Last) (First) (Middle)
787 SEVENTH AVENUE, 49TH FLOOR,
(Street)
NEW YORK NY 10019
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. The securities are owned by 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") as follows: New Mountain Partners II, L.P. directly owns 26,569,513 shares of common stock and 91.37 shares of Class A common stock; New Mountain Affiliated Investors II, L.P. directly owns 461,570 shares of common stock and 1.59 shares of Class A common stock; and Allegheny New Mountain Partners, L.P. directly owns 2,048,497 shares of common stock and 7.04 shares of Class A common stock. New Mountain Investments II, L.L.C. is the general partner of each of the New Mountain Funds. Steven B. Klinsky is the managing member of New Mountain Investments II, L.L.C. and the chief executive officer of New Mountain Capital, L.L.C. New Mountain Capital, L.L.C. is the manager of each of the New Mountain Funds.
Remarks:
Exhibit List: Exhibit 99
/s/ Steven Klinsky, Mg Mbr of New Mountain Investments II, LLC 10/31/2007
/s/ Steven Klinsky, Mg Mbr of GP of New Mountain Partners II, LP 10/31/2007
/s/ Steven Klinsky, Mg Mbr of GP of N.M. Affiliated Investors II, LP 10/31/2007
/s/ Steven Klinsky, Mg Mbr of GP of Allegheny N.M. Partners, LP 10/31/2007
/s/ Steven Klinsky 10/31/2007
/s/ Steven Klinsky, CEO, New Mountain Capital, LLC 10/31/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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