Ownership Submission
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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  RUBENSTEIN BARRY
 2. Date of Event Requiring Statement (Month/Day/Year)
06/27/2007		 3. Issuer Name and Ticker or Trading Symbol
Courtside Acquisition Corp [CRB]
(Last)
(First)
(Middle)
68 WHEATLEY RD		 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 Original Filed(Month/Day/Year)
(Street)

BROOKVILLE, NY 11545		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
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 750,000
D (1)
 
Common Stock 19,200
D (2)
 
Common Stock 521,532
I (3)
By Seneca Ventures
Common Stock 691,532
I (3)
By Woodland Venture Fund
Common Stock 500
I (3)
By Woodland Partners

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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.

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 of Derivative Security: 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
Warrants to purchase Common Stock   (4) 06/30/2009 Common Stock 684,600 $ 5 D (1)  
Warrants to purchase Common Stock   (4) 06/30/2009 Common Stock 158,000 $ 5 I (3) By Seneca Ventures
Warrants to purchase Common Stock   (4) 06/30/2009 Common Stock 158,000 $ 5 I (3) By Woodland Venture Fund

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
RUBENSTEIN BARRY
68 WHEATLEY RD
BROOKVILLE, NY 11545		     X    

Signatures

/s/ Barry Rubenstein 06/29/2007
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Held by the Barry Rubenstein Rollover IRA Account
(2) Held by Barry Rubenstein and Marilyn Rubenstein (spouse)
(3) The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
(4) The Warrants become exercisable upon the completion by the Issuer of a business combination with a target business.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.