[ ]
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Rule 13d-1(b)
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[X]
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Rule 13d-1(c)
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[ ]
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Rule 13d-1(d)
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CUSIP NO. 65411N105
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Page 2 of 7 Pages
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1.
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Names of Reporting Persons
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2.
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Check the Appropriate Box If a Member of a Group (See Instructions)
|
a.
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[ ]
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b.
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[ ]
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3.
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SEC Use Only
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4.
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Citizenship or Place of Organization
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5.
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Sole Voting Power
|
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Number of
Shares
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0
|
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Beneficially
Owned By
Each
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6.
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Shared Voting Power
0
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Reporting
Person
With
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7.
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Sole Dispositive Power
0
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8.
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Shared Dispositive Power
|
|
0
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9.
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Aggregate Amount Beneficially Owned by Each Reporting Person
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10.
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Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
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11.
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Percent of Class Represented By Amount in Row (9)
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12.
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Type of Reporting Person (See Instructions)
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CUSIP NO. 65411N105
|
Page 3 of 7 Pages
|
1.
|
Names of Reporting Persons
|
2.
|
Check the Appropriate Box If a Member of a Group (See Instructions)
|
a.
|
[ ]
|
b.
|
[ ]
|
3.
|
SEC Use Only
|
4.
|
Citizenship or Place of Organization
|
5.
|
Sole Voting Power
|
|
Number of
Shares
|
0
|
|
Beneficially
Owned By
Each
|
6.
|
Shared Voting Power
0
|
Reporting
Person
With
|
7.
|
Sole Dispositive Power
0
|
8.
|
Shared Dispositive Power
|
|
0
|
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
|
10.
|
Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)
|
11.
|
Percent of Class Represented By Amount in Row (9)
|
12.
|
Type of Reporting Person (See Instructions)
|
CUSIP NO. 65411N105
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Page 4 of 7 Pages
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Item 1(a).
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Name of Issuer:
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Nighthawk Radiology Holdings, Inc. (the "Issuer").
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Item 1(b).
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Address of the Issuer's Principal Executive Offices:
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4900 N. Scottsdale Road, 6th Floor
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Scottsdale, Arizona 85251
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Item 2(a).
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Name of Person Filing
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The Statement is filed on behalf of each of the following persons (collectively, the “Reporting Persons”):
|
i)
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Stelliam Investment Management, LP (“Stelliam Investment Management”); and
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ii)
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Ross Margolies (“Mr. Margolies”).
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This statement relates to Shares (as defined herein) held for the account of Stelliam Master Fund, L.P., a Cayman Islands exempted limited partnership (the “Master Fund”) and Stelliam Master Long Fund, L.P., a Cayman Islands exempted limited partnership (the “Long Fund” and together with the Master Fund, the “Funds”). Stelliam Investment Management serves as investment manager of the Funds and Mr. Margolies is the managing member of Stelliam Investment Management’s general partner. Each of Stelliam Investment Management and Mr. Margolies, in the capacities set forth above, may be deemed to be the beneficial owner of Shares held for the account of the Funds.
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Item 2(b).
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Address of Principal Business Office or, if None, Residence:
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The address and principal business office of each of the Reporting Persons is 31 West 52 Street, 16th Floor, New York, New York 10019.
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Item 2(c).
|
Citizenship:
|
i)
|
Stelliam Investment Management is a Delaware limited partnership; and
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ii)
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Mr. Margolies is a United States citizen.
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Item 2(d).
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Title of Class of Securities:
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Common Stock, $0.001 par value per share (the “Shares”).
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Item 2(e).
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CUSIP Number:
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65411N105
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CUSIP NO. 65411N105
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Page 5 of 7 Pages
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Item 3.
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If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:
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This Item 3 is not applicable.
|
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Item 4.
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Ownership:
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Item 4(a).
|
Amount Beneficially Owned:
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As of the date hereof, each of the Reporting Persons may be deemed to be the beneficial owner of 0 Shares held directly by the Funds (based upon information provided by the Issuer in its Definitive Proxy Statement on Schedule 14A dated November 23, 2010, there were 24,019,611 Shares outstanding as of November 11, 2010).
|
|
Item 4(b).
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Percent of Class:
|
Each of the Reporting Persons may be deemed to be the beneficial owner of approximately 0.00% of the total number of Shares outstanding.
|
|
Item 4(c).
|
Number of shares as to which such person has:
|
Stelliam Investment Management
|
|||
(i)
|
Sole power to vote or direct the vote
|
0
|
|
(ii)
|
Shared power to vote or to direct the vote
|
0
|
|
(iii)
|
Sole power to dispose or to direct the disposition of
|
0
|
|
(iv)
|
Shared power to dispose or to direct the disposition of
|
0
|
Mr. Margolies
|
|||
(i)
|
Sole power to vote or direct the vote
|
0
|
|
(ii)
|
Shared power to vote or to direct the vote
|
0
|
|
(iii)
|
Sole power to dispose or to direct the disposition of
|
0
|
|
(iv)
|
Shared power to dispose or to direct the disposition of
|
0
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CUSIP NO. 65411N105
|
Page 6 of 7 Pages
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Item 5.
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Ownership of Five Percent or Less of a Class:
|
If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owners of more than five percent of the class of securities, check the following [X].
|
|
Item 6.
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Ownership of More than Five Percent on Behalf of Another Person:
|
The partners of the Funds that participate in the investment in the Issuer have the right to participate in the receipt of dividends from, or proceeds from the sale of, the Shares held by the Funds pro rata in accordance with their respective ownership interests in the Funds.
|
|
Item 7.
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Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company:
|
This Item 7 is not applicable.
|
|
Item 8.
|
Identification and Classification of Members of the Group:
|
This Item 8 is not applicable.
|
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Item 9.
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Notice of Dissolution of Group:
|
This Item 9 is not applicable.
|
|
Item 10.
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Certification:
|
By signing below each of the Reporting Persons certifies that, to the best of such person's knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect.
|
CUSIP NO. 65411N105
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Page 7 of 7 Pages
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Date: February 10, 2011
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STELLIAM INVESTMENT MANAGEMENT, LP
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By: /s/ Gregg Kudisch
|
|
Gregg Kudisch
|
|
Chief Financial Officer
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Date: February 10, 2011
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ROSS MARGOLIES
|
By: /s/ Ross Margolies
|
|