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SEC 1745 (02-02) 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 control number.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. ___________)*

Cavitation Technologies, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

14964W104

(CUSIP Number)

December 31,2015

(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).

CUSIP No. 14964W104
	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Jon D. & Linda W. Gruber Revocable Trust
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		X
		(b)
	3.	SEC Use Only ............................................................................................................................................
	4.	Citizenship or Place of Organization California
Number of Shares Beneficially Owned by Each Reporting Person With
				5.			Sole Voting Power 5,102,600
				6.			Shared Voting Power 0
				7.			Sole Dispositive Power 5,102,600
				8.			Shared Dispositive Power 0
	9.	Aggregate Amount Beneficially Owned by Each Reporting Person 5,102,600
	10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions).................................
	11.	Percent of Class Represented by Amount in Row (9) 2.63 %
	12.	Type of Reporting Person (See Instructions) OO (Revocable Trust)
Item 1.
			(a)		Name of Issuer: Cavitation Technologies, Inc.
			(b)		Address of Issuer's Principal Executive Offices: 10019 Canoga Ave. Chatsworth, CA 91311
Item 2.
			(a)		Name of Person Filing: Jon D. & Linda W. Gruber Revocable Trust
			(b)		Address of Principal Business Office or, if none, Residence: 300 Tamal Plaza, Ste. 280, Corte Madera, CA 94925
			(c)		Citizenship: See item 4 of cover sheet.
			(d)		Title of Class of Securities: Common Stock
			(e)		CUSIP Number: 14964W104
Item 3.			If this statement is filed pursuant to 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
			(a)		[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
			(b)		[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
			(c)		[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
			(d)		[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).
			(e)		[ ]	An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);
			(f)		[ ]	An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F);
			(g)		[ ]	A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G);
			(h)		[ ]	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
			(i)		[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
			(j)		[x]	Group, in accordance with 240.13d-1(b)(1)(ii)(J).
Item 4.			Ownership.
See Items 5-9 and 11 of the cover page for each Filer.
Item 5.			Ownership of Five Percent or Less of a Class
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].
Item 6.			Ownership of More than Five Percent on Behalf of Another Person.
Not Applicable
Item 7.			Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.
Not Applicable
Item 8.			Identification and Classification of Members of the Group
Not Applicable
Item 9.			Notice of Dissolution of Group
Not Applicable
Item 10.			Certification
					By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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.

Dated: February 2, 2016

Jon D. & Linda W. Gruber Revocable Trust

By: /s/ Jon D Gruber

Name/Title: Jon D Gruber, Trustee

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