0001279891-13-000002.txt : 20130214 0001279891-13-000002.hdr.sgml : 20130214 20130214165013 ACCESSION NUMBER: 0001279891-13-000002 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20130214 DATE AS OF CHANGE: 20130214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: RADISYS CORP CENTRAL INDEX KEY: 0000873044 STANDARD INDUSTRIAL CLASSIFICATION: COMPUTER PERIPHERAL EQUIPMENT, NEC [3577] IRS NUMBER: 930945232 STATE OF INCORPORATION: OR FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-45775 FILM NUMBER: 13615249 BUSINESS ADDRESS: STREET 1: 5435 NE DAWSON CREEK DR CITY: HILLSBORO STATE: OR ZIP: 97124 BUSINESS PHONE: 5036151100 MAIL ADDRESS: STREET 1: 5435 NE DAWSON CREEK DRIVE CITY: HILLSBORO STATE: OR ZIP: 97124 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: WOLVERINE ASSET MANAGEMENT LLC CENTRAL INDEX KEY: 0001279891 IRS NUMBER: 020611276 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 175 W. JACKSON STREET 2: SUITE 200 CITY: CHICAGO STATE: IL ZIP: 60064 BUSINESS PHONE: 3128844400 MAIL ADDRESS: STREET 1: 175 WEST JACKSON STREET 2: SUITE 200 CITY: CHICAGO STATE: IL ZIP: 60604 SC 13G 1 rsys_13g12312012.htm

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. )*

Radisys Corporation

(Name of Issuer)

Common Stock, $0.01 Per Share

(Title of Class of Securities)

750459109

(CUSIP Number)

December 31, 2012

(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 Instructions).

CUSIP No.: 750459109
1 NAME OF REPORTING PERSON
Wolverine Asset Management, LLC

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)  [   ]
(b)  [   ]
3 SEC USE ONLY
 
4 CITIZENSHIP OR PLACE OF ORGANIZATION
State of Illinois
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 SOLE VOTING POWER
1,524,033 shares of common stock
6 SHARED VOTING POWER
-0-
7 SOLE DISPOSITIVE POWER
1,524,033 shares of common stock
8 SHARED DISPOSITIVE POWER
-0-
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,524,033 shares of common stock
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES []

11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.1%
12 TYPE OF REPORTING PERSON
IA

CUSIP No.: 750459109
1 NAME OF REPORTING PERSON
Wolverine Holdings, L.P.

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
36-3957309
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)  [   ]
(b)  [   ]
3 SEC USE ONLY
 
4 CITIZENSHIP OR PLACE OF ORGANIZATION
State of Illinois
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 SOLE VOTING POWER
1,527,233 shares of common stock
6 SHARED VOTING POWER
-0-
7 SOLE DISPOSITIVE POWER
1,527,233 shares of common stock
8 SHARED DISPOSITIVE POWER
-0-
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,527,233 shares of common stock
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES []

11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.1%
12 TYPE OF REPORTING PERSON
HC

CUSIP No.: 750459109
1 NAME OF REPORTING PERSON
Christopher Gust

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)  [   ]
(b)  [   ]
3 SEC USE ONLY
 
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 SOLE VOTING POWER
-0-
6 SHARED VOTING POWER
1,527,233 shares of common stock
7 SOLE DISPOSITIVE POWER
-0-
8 SHARED DISPOSITIVE POWER
1,527,233 shares of common stock
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,527,233 shares of common stock
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES []

11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.1%
12 TYPE OF REPORTING PERSON
IN

CUSIP No.: 750459109
1 NAME OF REPORTING PERSON
Robert Bellick

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)  [   ]
(b)  [   ]
3 SEC USE ONLY
 
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 SOLE VOTING POWER
-0-
6 SHARED VOTING POWER
1,527,233 shares of common stock-
7 SOLE DISPOSITIVE POWER
-0-
8 SHARED DISPOSITIVE POWER
1,527,233 shares of common stock
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,527,233 shares of common stock
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES []

11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.1%
12 TYPE OF REPORTING PERSON
IN

CUSIP No.: 750459109
ITEM 1(a). NAME OF ISSUER:
Radisys Corporation
ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
5435 N.E. Dawson Creek Drive
Hillsboro, OR
97124
ITEM 2(a). NAME OF PERSON FILING:
Wolverine Asset Management, LLC
Wolverine Holdings, L.P.
Christopher Gust
Robert Bellick
ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
175 W. Jackson Blvd.
Suite 200
Chicago, IL 60604
ITEM 2(c). CITIZENSHIP:
Wolverine Asset Management, LLC - State of Illinois
Wolverine Holdings, L.P. - State of Illinois
Christopher Gust - United States of America
Robert Bellick - United States of America
ITEM 2(d). TITLE OF CLASS OF SECURITIES:
Common Stock, $0.01 per share
ITEM 2(e). CUSIP NUMBER:
750459109
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SECTION 240.13d-1(b), or 13d-2(b) or (c) CHECK WHETHER THE PERSON FILING IS A:
(a) [   ]  Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78c);
(b) [   ]  Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c);
(c) [   ]  Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c);
(d) [   ]  Investment company registered under Section 8 of the Investment Company Act of 1940
(15 U.S.C 80a-8);
(e) [X]  An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);
(f) [   ]  An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F);
(g) [X]  A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G);
(h) [   ]  A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act
(12 U.S.C. 1813);
(i) [   ]  A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j) [   ]  A non-U.S. institution in accordance with 240.13d-1(b)(1)(ii)(J);
(k) [   ]  Group, in accordance with 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution
in accordance with 240.13d1(b)(1)(ii)(J), please specify the type of institution:
ITEM 4. OWNERSHIP:
Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
(a) Amount beneficially owned:
1,527,233 shares of common stock
(b) Percent of class:
5.10% (The percentage of beneficial ownership was calculated based on the total number of outstanding shares (28,343,483) reported on Bloomberg as of December 31,2012. This number assumes the conversion of all convertible securities owned by, Reporting Persons, within 60 days of the date hereof.)
(c) Number of shares as to which the person has:
(i)   Sole power to vote or to direct the vote:
1,527,233 shares of common stock
(ii)  Shared power to vote or to direct the vote:
-0-
(iii) Sole power to dispose or to direct the disposition of:
1,527,233 shares of common stock
(iv) Shared power to dispose or to direct the disposition of:
ITEM 5. 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 person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [   ].
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:
 
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY:
Wolverine Asset Management,LLC is a registered investment adviser that is a subsidiary of Wolverine Holdings, L.P. Wolverine Trading, LLC is a registered broker dealer that is a subsidiary of Wolverine Holdings, L.P. Both Messrs. Gust and Bellick are control persons of Wolverine Holdings, L.P. 
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:
 
ITEM 9. NOTICE OF DISSOLUTION OF GROUP:
 
ITEM 10. CERTIFICATION:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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.

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.
Wolverine Asset Management, LLC
 
By: Kenneth Nadel, Chief Operating Officer
 
Dated: February 14, 2013
 
 



Wolverine Holdings, L.P.
 
By: Christopher Gust, Managing Director
 
Dated: February 14, 2013
 
 



Christopher Gust
 
By: Christopher Gust, Managing Director
 
Dated: February 14, 2013
 
 



Robert Bellick
 
By: Robert Bellick, Managing Director
 
Dated: February 14, 2013
 
 






Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (see 18 U.S.C. 1001).