UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 12b-25

NOTIFICATION OF LATE FILING

Commission File Number: 000-54119

(Check One): o Form 10-K o Form 20-F o Form 11-K x Form 10-Q o Form 10-D o Form N-SAR o Form N-CSR

For Period Ended: March 31, 2013

o Transition Report on Form 10-K

o Transition Report on Form 20-F

o Transition Report on Form 11-K

o Transition Report on Form 10-Q

o Transition Report on Form N-SAR

For the Transition Period Ended: _______________

Read Instruction (on back page) Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: __________________________

PART I – REGISTRANT INFORMATION

Sionix Corporation

Full Name of Registrant

Former Name if Applicable

2010 North Loop West, Suite 110

Address of Principal Executive Office

Houston, Texas 77018

City, State and Zip Code

PART II – RULES 12b-25 (b) AND (c)

If the subject report could not be filed out without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed.  (Check box if appropriate)

x	(a)	The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;
	(b)	The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
	(c)	The accountant’s statement or exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III – NARRATIVE

State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

The Company has experienced a delay in completing the information necessary for including in its Quarterly Report on Form 10-Q, in particular its financial statements, for the quarter ended March 31, 2013 (the “March 2013 Quarterly Report”).  The Company expects to file the March 2013 Quarterly Report within 5 days of the prescribed due date.

PART IV – OTHER INFORMATION

(1)	Name and telephone number of persons to contact in regard to this notification.
	Henry Sullivan	(713)	682-6500
	(Name)	(Area Code)	(Telephone Number)
(2)	Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for shorter period that the registrant was required to file such report(s) been filed?  If the answer is no, identify report(s).  x Yes o No
(3)	Is it anticipated that any significant changes in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or in the portion thereof? o Yes   x No If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

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SIGNATURE

Sionix Corporation has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 15, 2013	By:	/s/ Henry Sullivan
		Henry Sullivan
		Chief Executive Officer

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

ATTENTION

Intentional misstatements or omissions of fact constitute Federal criminal violations (see 18 U.S.C. 1001).

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