FORM 4
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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Talon Opportunity Partners, L.P.
  2. Issuer Name and Ticker or Trading Symbol
ASPENBIO INC [apnb]
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 TALON ASSET MANAGEMENT, INC., ONE NORTH FRANKLIN, SUITE 900
3. Date of Earliest Transaction (Month/Day/Year)
05/05/2005
(Street)

CHICAGO, IL 60606
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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
Common shares 05/05/2005   P   1,142,857 A $ 0.875 2,285,714 D (1)  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(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 (right to buy) $ 1.35 05/05/2005   P   1,142,857   05/05/2005 05/05/2010 Common shares 1,142,857 $ 0 2,285,714 D (1)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Talon Opportunity Partners, L.P.
C/O TALON ASSET MANAGEMENT, INC.
ONE NORTH FRANKLIN, SUITE 900
CHICAGO, IL 60606
    X    
Talon Opportunity Managers, L.L.C.
C/O TALON ASSET MANAGEMENT, INC.
ONE NORTH FRANKLIN, SUITE 900
CHICAGO, IL 60606
    X    

Signatures

 Terry Diamond   05/09/2005
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The securities reported herein are owned directly by Talon Opportunity Partners, L.P. ("Limited Partnership"), and indirectly by Talon Opportunity Managers, L.L.C., as the General Partner to the Limited Partnership. Talon Opportunity Managers, L.L.C. may be deemed to be the beneficial owner of the Issuer's securities held by the Limited Partnership. Talon Opportunity Managers, L.L.C. disclaims any beneficial ownership of any of the Issuer's securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended, or otherwise, except as to securities representing Talon Opportunity Managers, L.L.C.'s pro rata interest in, and interest in the profits of, the Limited Partnership.

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