SC 13G/A 1 k91143asc13gza.txt AMENDMENT TO SCHEDULE 13G OMB APPROVAL -------------------------- OMB Number: 3235-0145 Expires: December 31, 2005 Estimated average burden hours per response......11 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G-A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 1)* Sionix Corp -------------------------------------------------------------------------------- (Name of Issuer) Common -------------------------------------------------------------------------------- (Title of Class of Securities) 829400100 -------------------------------------------------------------------------------- (CUSIP Number) -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). 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. SEC 1745 (12-02) CUSIP NO. 829400100 13G-A Page of Pages -------------------------------------------------------------------------------- 1. Names of Reporting Persons. Erland David Kailbourne I.R.S. Identification Nos. of above persons (entities only). 080528192 -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] ----------------------------------------------------------------- (b) [ ] ----------------------------------------------------------------- -------------------------------------------------------------------------------- 3. SEC Use Only -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization -------------------------------------------------------------------------------- Number of 5. Sole Voting Power Shares 6,783,300 ----------------------------------------------------- Beneficially 6. Shared Voting Power Owned by ----------------------------------------------------- Each 7. Sole Dispositive Power Reporting 6,783,300 ----------------------------------------------------- Person With: 8. Shared Dispositive Power -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 6.6% -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) (IN) Individual -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Jan. 13, 2005 --------------------------------------- Date /s/ E. David Kailbourne --------------------------------------- Signature Erland David Kailbourne --------------------------------------- Name/Title