Form: 4

Statement of changes in beneficial ownership of securities

May 17, 2005

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 *
Jeong Tae Heum
  2. Issuer Name and Ticker or Trading Symbol
REXAHN PHARMACEUTICALS, INC. [RXHN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CFO and Secretary
(Last)
(First)
(Middle)
9620 MEDICAL CENTER DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
05/13/2005
(Street)

ROCKVILLE, MD 20850
4. If Amendment, Date Original Filed(Month/Day/Year)
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 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 Stock 05/13/2005   A   500,000 A (1) 500,000 D  

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
Stock Option: (right to buy) $ 0.24 05/13/2005   A   250,000     (2) 08/05/2013 Common Stock 250,000 (4) 250,000 D  
Stock Option: (right to buy) $ 0.24 05/13/2005   A   500,000     (3) 01/20/2015 Common Stock 500,000 (4) 500,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Jeong Tae Heum
9620 MEDICAL CENTER DRIVE
ROCKVILLE, MD 20850
      CFO and Secretary  

Signatures

 /s/ Ted T.H. Jeong   05/17/2005
**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) These shares were acquired pursuant to the Agreement and Plan of Merger (the "Merger Agreement") among the Issuer, Rexahn, Corp and the wholly-owned subsidiaries of the Issuer, whereby each share of Rexahn, Corp's common stock was converted into the right to receive five shares of the Issuer's common stock.
(2) As of February 14, 2005, 60% of the options were vested and exercisable and the remaining 40% of the options vest and become exercisable on December 1, 2005.
(3) The options vest and become exercisable as to 30% of the options on January 20, 2006; another 30% of the options on January 20, 2007; and the remaining 40% of the options on January 20, 2008.
(4) These options were acquired pursuant to the Merger Agreement, whereby each outstanding option of Rexahn, Corp was converted into five options to purchase shares of Issuer common stock. Such new option is otherwise subject to the same terms of the original option, except that the exercise price per share of Issuer common stock under the Issuer option is equal to the exercise price per share of Rexahn, Corp common stock under the original option, divided by five (rounded up to the nearest hundredth of a cent; provided, however, that in no event is the exercise price per share of any Issuer common stock less than $.0001).

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