FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MARXE AUSTIN W & GREENHOUSE DAVID M 		2. Issuer Name and Ticker or Trading Symbol

OVERLAND STORAGE INC [ 12/1/2014 ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      __ X __ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O SPECIAL SITUATIONS FUNDS, 527 MADISON AVENUE, SUITE 2600 		3. Date of Earliest Transaction (MM/DD/YYYY)

12/1/2014
(Street)

NEW YORK, NY 10022
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Warrants   $8.132   12/1/2014     U         1443373   (1) (2) (3)   2/19/2010   2/22/2015   Common Stock   0   $0   0   I   (1) By Limited Partnerships   (1)

Explanation of Responses:
( 1)  This is a joint filing by Austin W. Marxe (Marxe) & David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Private Equity Fund, L.P. (PE), Special Situations Technology Fund, LP (Tech) & Special Situations Technology II, Fund, L.P. (Tech II), respectively. 0 warrants are held by QP, 0 Warrants are held by PE, 0 Warrants are held by Tech & 0 Warrants are held by Tech II. The interest of Marxe and Greenhouse in the shares of Warrants owned by QP, PE, Tech, and Tech II is limited to the extent of his pecuniary interest.
( 2)  The Warrants described herein reflect a one-for-five (1-for-5) reverse stock split of the Issuer's common stock, effective April 9, 2014.
( 3)  This transaction reflects the disposition of shares of the Issuer's common stock pursuant to the Agreement and Plan of Merger, dated as of May 15, 2014, by and among the Issuer, Sphere 3D Corporation and S3D Acquisition Company. On December 1, 2014, the Issuer completed the merger.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MARXE AUSTIN W & GREENHOUSE DAVID M
C/O SPECIAL SITUATIONS FUNDS
527 MADISON AVENUE, SUITE 2600
NEW YORK, NY 10022
X


Signatures
Austin W. Marxe 12/30/2014
** Signature of Reporting Person Date

David M. Greenhouse 12/30/2014
** Signature of Reporting Person Date

Adam C. Stettner 12/30/2014
** 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 4(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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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