UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. ___)*

CombiMatrix Corporation

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

20009T303

(CUSIP Number)

February 23, 2017
(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).

SCHEDULE 13G

CUSIP No.


1
Names of Reporting Persons

Michael A. Lipka
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

United States
Number of Shares Beneficially Owned by Each Reporting
Person With:

5
  Sole Voting Power


  152,875

6
  Shared Voting Power


  152,875

7
  Sole Dispositive Power




8
  Shared Dispositive Power


  152,875
9
Aggregate Amount Beneficially Owned by Each Reporting
Person


10
Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions)

[ ]
11
Percent of class represented by amount in row (9)

6.1%
12
Type of Reporting Person (See Instructions)

IN


Item 1.
(a)     Name of Issuer:         CombiMatrix Corporation
(b)     Address of Issuer?s Principal Executive Offices:
310 Goddard, Suite 150, Irvine, CA 92618
Item 2.
(a) Name of Person Filing: Michael A. Lipka
(b) Address of Principal Business Office or, if None, Residence:
P.O. Box 235384
Encinitas, CA 92023
(c) Citizenship:        United States
(d) Title and Class of Securities:

Common Stock, $0.001 par value

(e) CUSIP No.:  20009T303

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;
(b)     [_]     Bank as defined in Section 3(a)(6) of the Act;
(c)     [_]     Insurance company as defined in Section 3(a)(19) of the Act;
(d)     [_]     Investment company registered under Section 8 of the
Investment Company Act of 1940;
(e)     [_]     An investment adviser in accordance with Rule
13d-1(b)(1)(ii)(E);
(f)     [_]     An employee benefit plan or endowment fund in
accordance with Rule 13d-1(b)(1)(ii)(F);
(g)     [_]     A parent holding company or control person in
accordance with Rule 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;
(j)     [_]     A non-U.S. institution in accordance with
Rule 240.13d-1(b)(1)(ii)(J);
(k)     [_]     Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with
Rule 240.13d-1(b)(1)(ii)(J), please specify the type of
institution: ____
Item 4. Ownership
(a)     Amount Beneficially Owned:       152,875
 (b)    Percent of Class:  6.1%
 (c)    Number of shares as to which such person has: 152,875
        (i)     Sole power to vote or to direct the vote:  152,875
        (ii)    Shared power to vote or to direct the vote:
(iii) Sole power to dispose or to direct the disposition of:  152,875
(iv) Shared power to dispose or to direct the disposition of:
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 [    ].
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.        Certifications.
Not applicable.


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:??


/s/ Signature

Name/Title: Michael A. Lipka
The original statement shall be signed by each person on whose
behalf the statement is filed or his authorized representative.
If the statement is signed on behalf of a person by his authorized
representative (other than an executive officer or general partner
of this filing person), evidence of the representative's authority
to sign on behalf of such person shall be filed with the statement,
provided, however, that a power of attorney for this purpose
which is already on file with the Commission may be incorporated
by reference.  The name and any title of each person who signs
the statement shall be typed or printed beneath his signature.
Attention:  Intentional misstatements or omissions of fact
constitute Federal criminal violations (See 18 U.S.C. 1001).
Page 5 of 5

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