1 ------ -------------------------- FORM 4 OMB APPROVAL ------ -------------------------- [ ] CHECK THIS BOX IF NO OMB Number: 3235-0287 LONGER SUBJECT TO Expires: December 31, 2001 SECTION 16. FORM 4 Estimated average burden OR FORM 5 OBLIGATIONS hours per response.... 0.5 MAY CONTINUE. SEE -------------------------- INSTRUCTION 1(b). UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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(f) of the Investment Company Act of 1940 (Print or Type Responses) ------------------------------------------------------------------------------------------------------------------------------------ 1. Name and Address of Reporting Person* 2. Issuer Name and Ticker or Trading Symbol 6. Relationship of Reporting Person(s) SCHAEFFER PETER NEON SYSTEMS, INC. (NESY) to Issuer (Check all applicable) --------------------------------------------- ---------------------------------------------- X Director 10% Owner (Last) (First) (Middle) 3. IRS Identification 4. Statement for ---- --- Number of Reporting Month/Year Officer (give Other (Specify 2918 AUTUMN RUN CIRCLE Person, if an entity JUNE 2001 ---- title --- below) --------------------------------------------- (voluntary) ------------------- below) (Street) 5. If Amendment, SUGAR LAND TX 77479 Date of Original --------------------------------------------- -------------------- (Month/Year) -------------------------------- (City) (State) (Zip) 7. 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 2. Trans- 3. Transac- 4. Securities Acquired (A) 5. Amount of Se- 6. Owner- 7. Nature (Instr. 3) action tion or Disposed of (D) curities Benefi- ship of In- Date Code (Instr. 3, 4 and 5) cially Owned at Form: direct (Instr. 8) End of Month Direct Benefi- (Month/ (Instr. 3 and 4) (D) or cial Day/ ------------------------------------ Indirect Owner- Year) Code V Amount (A) or Price (I) ship (D) (Instr. 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ Common Stock 6/18/01 G V 5,000 D 397,335 D ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over) * If the form is filed by more than one reporting person, see Instruction 4(b)(v). SEC 1474 (3-99) POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTIONS OF INFORMATION CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER.

FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (e.g., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative 2. Conver- 3. Trans- 4. Trans- 5. Number of 6. Date Exer- 7. Title and Amount 8. Price Security sion or action action Derivative cisable and of Underlying of (Instr. 3) Exercise Date Code Securities Ac- Expiration Securities Deriv- Price of (Month/ (Instr. 8) quired (A) or Date (Instr. 3 and 4) ative Deriv- Day/ Disposed of (D) (Month/Day/ Secur- ative Year) (Instr. 3, 4, Year) ity Security and 5) (Instr. 5) ----------------------------------- Date Expira- Amount or -------------------------- Exer- tion Title Number of Code V (A) (D) cisable Date Shares ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 9. Number of 10. Ownership 11. Nature of Derivative Form of Indirect Securities Derivative Beneficial Beneficially Security: Ownership Owned at End Direct (D) (Instr. 4) of Month or Indirect (I) (Instr. 4) (Instr. 4) ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- Explanation of Responses: /s/ Peter Schaeffer 37/52/01 **Intentional misstatements or omissions of facts constitute Federal Criminal Violations. ----------------------------- -- -------- See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). **Signature of Reporting Person Date *As Attorney-In-Fact Note: File three copies of this Form, one of which must be manually signed. Page 2 If space is insufficient, see Instruction 6 for procedure. SEC 1474 (3-99) 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.

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