UNITED STATES
SECURITIES EXCHANGE COMMISSION
Washington, D.C. 20549
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SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)
STONE ARCADE ACQUISITION CORP.
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(Name of Issuer)
Common Stock, $.0001 par value per share
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(Title of Class of Securities)
861575108
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(CUSIP Number)
December 31, 2006
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(Date of Event which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[X] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
Continued on following pages
Page 1 of 11 Pages
SCHEDULE 13G
CUSIP No.: 861575108 Page 2 of 11 Pages
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1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
MAGNETAR FINANCIAL LLC
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2. Check the Appropriate Box if a Member of a Group
(a) [ ]
(b) [ ]
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3. SEC Use Only
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4. Citizenship or Place of Organization
Delaware
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Number of 5. Sole Voting Power 2,550,000
Shares ----------------------------------------------------------
Beneficially 6. Shared Voting Power 0
Owned by Each ----------------------------------------------------------
Reporting 7. Sole Dispositive Power 2,550,000
Person With ----------------------------------------------------------
8. Shared Dispositive Power 0
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9. Aggregate Amount Beneficially Owned by Each Reporting Person
2,550,000
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10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions)
[ ]
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11. Percent of Class Represented by Amount in Row (9)
9.53% based on 26,759,500 shares outstanding as of March 21, 2006./1/
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12. Type of Reporting Person:
IA; OO
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/1/ This figure includes an amount of Shares that the Reporting Person is
entitled to obtain upon exercise of warrants.
SCHEDULE 13G
CUSIP No.: 861575108 Page 3 of 11 Pages
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1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
MAGNETAR CAPITAL PARTNERS LP
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2. Check the Appropriate Box if a Member of a Group
(a) [ ]
(b) [ ]
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3. SEC Use Only
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4. Citizenship or Place of Organization
Delaware
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Number of 5. Sole Voting Power 0
Shares ----------------------------------------------------------
Beneficially 6. Shared Voting Power 2,550,000
Owned by Each ----------------------------------------------------------
Reporting 7. Sole Dispositive Power 0
Person With ----------------------------------------------------------
8. Shared Dispositive Power 2,550,000
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9. Aggregate Amount Beneficially Owned by Each Reporting Person
2,550,000
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10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions)
[ ]
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11. Percent of Class Represented by Amount in Row (9)
9.53% based on 26,759,500 shares outstanding as of March 21, 2006./1/
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12. Type of Reporting Person:
HC; OO
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/1/ This figure includes an amount of Shares that the Reporting Person is
entitled to obtain upon exercise of warrants.
SCHEDULE 13G
CUSIP No.: 861575108 Page 4 of 11 Pages
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1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
SUPERNOVA MANAGEMENT LLC
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2. Check the Appropriate Box if a Member of a Group
(a) [ ]
(b) [ ]
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3. SEC Use Only
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4. Citizenship or Place of Organization
Delaware
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Number of 5. Sole Voting Power 0
Shares ----------------------------------------------------------
Beneficially 6. Shared Voting Power 2,550,000
Owned by Each ----------------------------------------------------------
Reporting 7. Sole Dispositive Power 0
Person With ----------------------------------------------------------
8. Shared Dispositive Power 2,550,000
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9. Aggregate Amount Beneficially Owned by Each Reporting Person
2,550,000
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10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions)
[ ]
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11. Percent of Class Represented by Amount in Row (9)
9.53% based on 26,759,500 shares outstanding as of March 21, 2006./1/
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12. Type of Reporting Person:
HC; OO
-----------------------
/1/ This figure includes an amount of Shares that the Reporting Person is
entitled to obtain upon exercise of warrants.
SCHEDULE 13G
CUSIP No.: 861575108 Page 5 of 11 Pages
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1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
ALEC N. LITOWITZ
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2. Check the Appropriate Box if a Member of a Group
(a) [ ]
(b) [ ]
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3. SEC Use Only
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4. Citizenship or Place of Organization
United States of America
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Number of 5. Sole Voting Power 0
Shares ----------------------------------------------------------
Beneficially 6. Shared Voting Power 2,550,000
Owned by Each ----------------------------------------------------------
Reporting 7. Sole Dispositive Power 0
Person With ----------------------------------------------------------
8. Shared Dispositive Power 2,550,000
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9. Aggregate Amount Beneficially Owned by Each Reporting Person
2,550,000
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10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions)
[ ]
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11. Percent of Class Represented by Amount in Row (9)
9.53% based on 26,759,500 shares outstanding as of March 21, 2006./1/
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12. Type of Reporting Person:
HC
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/1/ This figure includes an amount of Shares that the Reporting Person is
entitled to obtain upon exercise of warrants.
Page 6 of 11 Pages
Item 1(a). Name of Issuer:
Stone Arcade Acquisition Corp. (the "Issuer")
Item 1(b). Address of Issuer's Principal Executive Offices:
c/o Stone-Kaplan Investments, LLC, One North Plainfield Plaza,
Suite 480, Northfield, Illinois, 60093.
Item 2(a). Name of Person Filing:
This Statement is filed on behalf of each of the following persons
(collectively, the "Reporting Persons"):
i) Magnetar Financial LLC ("Magnetar Financial");
ii) Magnetar Capital Partners LP ("Magnetar Capital Partners");
iii) Supernova Management LLC ("Supernova Management"); and
iv) Alec N. Litowitz ("Mr. Litowitz").
This Statement relates to Shares (as defined herein) and certain
warrants to purchase Shares held for the accounts of Magnetar Capital Master
Fund, Ltd, a Cayman Islands exempted company ("Magnetar Capital Master Fund").
Magnetar Capital Partners serves as the sole member and parent holding company
of Magnetar Financial. Magnetar Financial is a registered investment adviser
under Section 203 of the Investment Advisers Act of 1940, as amended. Magnetar
Financial serves as investment adviser to Magnetar Capital Master Fund. In
such capacity, Magnetar Financial exercises voting and investment power over
the Shares held for the account of Magnetar Capital Master Fund. Supernova
Management is the general partner of Magnetar Capital Partners. The manager of
Supernova Management is Mr. Litowitz.
Item 2(b). Address of Principal Business Office or, if None, Residence:
The address of the principal business office of each of Magnetar
Financial, Magnetar Capital Partners, Supernova Management, and Mr. Litowitz
is 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201.
Item 2(c). Citizenship:
i) Magnetar Financial is a Delaware limited liability company;
ii) Magnetar Capital Partners is a Delaware limited partnership;
iii) Supernova Management is a Delaware limited liability company;
and
Page 7 of 11 Pages
iv) Mr. Litowitz is a citizen of the United States of America.
Item 2(d). Title of Class of Securities:
Common Stock, $.0001 par value per share (the "Shares")
Item 2(e). CUSIP Number:
861575108
Item 3. If This Statement is Filed Pursuant to ss.ss.240.13d-1(b) or
240.13d-2(b) or (c), Check Whether the Person Filing is a:
(a) [ ] Broker or dealer registered under Section 15 of the
Exchange Act.
(b) [ ] Bank as defined in Section 3(a)(6) of the Exchange
Act.
(c) [ ] Insurance company as defined in Section 3(a)(19) of
the Exchange Act.
(d) [ ] Investment company registered under Section 8 of the
Investment Company Act.
(e) [X] An investment adviser in accordance with Rule
13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in
accordance with Rule 13d-1(b)(1)(ii)(F).
(g) [ ] A parent holding company or control person in
accordance with Rule 13d-1(b)(1)(ii)(G).
(h) [ ] A savings association as defined in Section 3(b) of
the Federal Deposit Insurance Act.
(i) [ ] A church plan that is excluded from the definition of
an investment company under Section 3(c)(14) of the
Investment Company Act.
Item 4. Ownership:
Item 4(a) Amount Beneficially Owned:
As of February 5, 2007, each of Magnetar Financial, Magnetar
Capital Partners, Supernova Management and Mr. Litowitz may be deemed to be
the beneficial owner of: (i) 790,500 Shares and (ii) 1,759,500 Shares issuable
upon the conversion of warrants held for the accounts of the Magnetar Capital
Master Fund.
Item 4(b) Percent of Class:
(i) The number of Shares of which each of Magnetar Financial,
Magnetar Capital Partners, Supernova Management and Mr. Litowitz may be deemed
to be the beneficial owner constitutes approximately 9.53% the total number of
Shares outstanding [based upon information provided by the Issuer in its most
recently filed requistration statement on Form 10-Q, there were approximately
26,759,500 shares as of March 21, 2006)./1/
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/1/ This figure includes an amount of Shares that the Reporting Person is
entitled to obtain upon exercise of warrants.
Page 8 of 11 Pages
Item 4(c) Number of Shares of which such person has:
Magnetar Financial:
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(i) Sole power to vote or direct the vote: 2,550,000
(ii) Shared power to vote or direct the vote: 0
(iii) Sole power to dispose or direct the disposition of: 2,550,000
(iv) Shared power to dispose or direct the disposition of: 0
Magnetar Capital Partners, Supernova Management, and Mr. Litowitz:
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(i) Sole power to vote or direct the vote: 0
(ii) Shared power to vote or direct the vote: 2,550,000
(iii) Sole power to dispose or direct the disposition of: 0
(iv) Shared power to dispose or direct the disposition of: 2,550,000
Item 5. Ownership of Five Percent or Less of a Class:
This Item 5 is not applicable.
Item 6. Ownership of More than Five Percent on Behalf of Another Person:
This Item 6 is not applicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on By the Parent Holding Company:
See disclosure in Item 2 hereof.
Item 8. Identification and Classification of Members of the Group:
This Item 8 is not applicable.
Item 9. Notice of Dissolution of Group:
This Item 9 is not applicable.
Item 10. Certification:
By signing below each of the Reporting Persons certifies that, to
the best of their 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 that purpose or effect.
Page 9 of 11 Pages
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
Date: February 14, 2007 MAGNETAR FINANCIAL LLC
By: Magnetar Capital Partners LP
As Sole Member
By: /s/ Alec N. Litowitz
----------------------------
Name: Alec N. Litowitz
Title: Manager of Supernova Management
LLC, as General Partner of Magnetar
Capital Partners LP
Date: February 14, 2007 MAGNETAR CAPITAL PARTNERS LP
By: /s/ Alec N. Litowitz
----------------------------
Name: Alec N. Litowitz
Title: Manager of Supernova Management
LLC, as General Partner of Magnetar
Capital Partners LP
Date: February 14, 2007 SUPERNOVA MANAGEMENT LLC
By: /s/ Alec N. Litowitz
----------------------------
Name: Alec N. Litowitz
Title: Manager
Date: February 14, 2007 ALEC N. LITOWITZ
/s/ Alec N. Litowitz
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Page 10 of 11 Pages
EXHIBIT INDEX
Ex. Page No.
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A. Joint Filing Agreement, dated February 14, 2007 by and
among Magnetar Financial LLC, Magnetar Capital Partners
LP, Supernova Management LLC, and Alec N. Litowitz...... 12
Page 11 of 11 Pages
EXHIBIT A
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13G with
respect to the Common Stock of Red Robin Gourmet Burgers, Inc. dated as of
February 14, 2007 is, and any amendments thereto (including amendments on
Schedule 13D) signed by each of the undersigned shall be, filed on behalf of
each of us pursuant to and in accordance with the provisions of Rule 13d-1(k)
under the Securities Exchange Act of 1934, as amended.
Date: February 14, 2007 MAGNETAR FINANCIAL LLC
By: Magnetar Capital Partners LP
As Sole Member
By: /s/ Alec N. Litowitz
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Name: Alec N. Litowitz
Title: Manager of Supernova
Management LLC, as General
Partner of Magnetar Capital
Partners LP
Date: February 14, 2007 MAGNETAR CAPITAL PARTNERS LP
By: /s/ Alec N. Litowitz
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Name: Alec N. Litowitz
Title: Manager of Supernova
Management LLC, as General
Partner of Magnetar Capital
Partners LP
Date: February 14, 2007 SUPERNOVA MANAGEMENT LLC
By: /s/ Alec N. Litowitz
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Name: Alec N. Litowitz
Title: Manager
Date: February 14, 2007 ALEC N. LITOWITZ
/s/ Alec N. Litowitz
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