SEC Form 3
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
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Rill Donna R

(Last) (First) (Middle)
2635 N. CRESCENT RIDGE DRIVE

(Street)
THE WOODLANDS TX 77381

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/29/2007
3. Issuer Name and Ticker or Trading Symbol
Opexa Therapeutics, Inc. [ opxa ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Vice President, Operations
5. If Amendment, Date of 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
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 610 D
Common Stock 1,000 I By Spouse
Common Stock 1,000 I By POA
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: 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
Common Stock Option (right to buy)(1) 04/02/2007 11/06/2009 Common Stock 6,000 30 D
Common Stock Option (right to buy)(2) 04/02/2007 12/05/2015 Common Stock 6,000 7 D
Common Stock Option (right to buy)(3) 04/02/2007 04/20/2016 Common Stock 23,380 5 D
Explanation of Responses:
1. Vests in three equal installments on November 6, 2005, November 6, 2006 and November 6, 2007.
2. Vests in four equal installments on December 5, 2006, December 5, 2007, December 5, 2008 and December 5, 2009.
3. Vests in three equal installments on April 20, 2007, April 20, 2008 and April 20, 2009.
Donna R. Rill 04/02/2007
** 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 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).
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 Number.