UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13G/A

                    Under the Securities Exchange Act of 1934

                                Amendment 2013-1

                                  FNB BANCORP
                               (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    302515101
                                 (CUSIP Number)

                                December 31, 2013
             (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).

The Reporting Persons previously filed their ownership interest in the Issuer
pursuant to a Schedule 13G/A at December 31, 2005.



                                  SCHEDULE 13G/A

CUSIP No. 302515101


1       NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (OPTIONAL)

        Banc Fund VI L.P.


2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                        (a) /   /
                                                        (b) /x/

3       SEC USE ONLY



4       CITIZENSHIP OR PLACE OF ORGANIZATION

        U.S.

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH


5       SOLE VOTING POWER

        41,022

6       SHARED VOTING POWER

        0

7       SOLE DISPOSITIVE POWER

        0

8       SHARED DISPOSITIVE POWER

        0

9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        0

10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
                                                                             /X/

11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        0%

12      TYPE OF REPORTING PERSON*

        PN




                                  SCHEDULE 13G/A

CUSIP No. 302515101

1       NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Banc Fund VII L.P.

2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                        (a) /   /
                                                        (b) /x/

3       SEC USE ONLY



4       CITIZENSHIP OR PLACE OF ORGANIZATION

        U.S.

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH


5       SOLE VOTING POWER

        50,979


6       SHARED VOTING POWER

        0

7       SOLE DISPOSITIVE POWER

        50,979

8       SHARED DISPOSITIVE POWER

        0

9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        50,979

10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
                                                                             /X/

11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        1.3%

12      TYPE OF REPORTING PERSON*

        PN



 

                                  SCHEDULE 13G/A

CUSIP No. 302515101

1       NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Banc Fund VIII L.P.

2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                        (a) /   /
                                                        (b) /x/

3       SEC USE ONLY



4       CITIZENSHIP OR PLACE OF ORGANIZATION

        U.S.

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH


5       SOLE VOTING POWER

        174,772

6       SHARED VOTING POWER

        0

7       SOLE DISPOSITIVE POWER

        174,772

8       SHARED DISPOSITIVE POWER

        0

9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        174,772

10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
                                                                             /X/

11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        4.4%

12      TYPE OF REPORTING PERSON*

        PN




Item 1 (a)      Name of Issuer: FNB BANCORP

Item 1 (b)      Address of Issuer's Principal Executive Offices:

              975 El Camino Real, South San Francisco, California



Item 2 (a)                 Name of Person Filing:

         This Schedule 13G/A is being filed jointly by Banc Fund VI L.P.
("BF VI"), an Illinois Limited Partnership, Banc Fund VII L.P. ("BF VII"), an
Illinois Limited Partnership, and Banc Fund VIII L.P. ("BF VIII"), an Illinois
Limited Partnership, (collectively, the "Reporting Persons").  The general
partner of BF VI is MidBanc VI L.P. ("MidBanc VI"), whose principal business is
to be a general partner of BF VI.  The general partner of BF VII is MidBanc VII
L.P. ("MidBanc VII"), whose principal business is to be a general partner of
BF VII.  The general partner of BF VIII is MidBanc VIII L.P. ("MidBanc VIII"),
whose principal business is to be a general partner of BF VIII.  MidBanc VI,
MidBanc VII, and MidBanc VIII are Illinois limited partnerships.  The general
partner of MidBanc VI, MidBanc VII, and MidBanc VIII is The Banc Funds Company,
L.L.C., ("TBFC"), whose principal business is to be a general partner of MidBanc
VI, MidBanc VII, and MidBanc VIII.  TBFC is an Illinois corporation whose
principal shareholder is Charles J. Moore.  Mr. Moore has been the manager
of BF VI, BF VII, and BF VIII, since their respective inceptions.  As manager,
Mr. Moore has voting and dispositive power over the securities of the issuer
held by each of those entities.  As the controlling member of TBFC, Mr. Moore
will control TBFC, and therefore each of the Partnership entities directly and
indirectly controlled by TBFC.


Item 2 (b)      Address of Principal Business Office:

                20 North Wacker Drive, Suite 3300, Chicago, IL 60606


Item 2 (c)      Citizenship:  United States

Item 2 (d)      Title of Class of Securities: Common Stock

Item 2 (e)      CUSIP Number: 302515101

Item 3          If this statement is being filed pursuant to Rule 13d-1(b)or
                13d-2(b), check whether the person filing is an:

(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)(ii)(G)
(h)[ ] A Savings Association as defined in Section 3(b) of the Federal Deposit
       Insurance Act
(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)[ ] Group, in accordance with 13d-1(b)(1)(ii)(J)

Item 4  Ownership:

The following information is provided as of February 7, 2014 for the calendar
year ending December 31, 2013:

(a)    Amount Beneficially Owned: 225,751

(b)    Percent of Class: 5.7%

(c)    Number of shares as to which such person has:

(i)    sole power to vote or to direct the vote: 225,751
(ii)   shared power to vote or to direct the vote: 0
(iii)  sole power to dispose or to direct the disposition of: 225,751
(iv)   shared power to dispose or to direct the disposition of: 0

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:

                                 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.

Date: February 13, 2014

BANC FUND VI L.P.
By: MidBanc VI L.P.
    an Illinois limited partnership,
    Its General Partner
By: THE BANC FUNDS COMPANY, L.L.C.
    an Illinois limited liability company,
    Its General Partner
By: /s/ Charles J. Moore

    Charles J. Moore, President

BANC FUND VII L.P.
By: MidBanc VII L.P.
    an Illinois limited partnership,
    Its General Partner
By: THE BANC FUNDS COMPANY, L.L.C.
    an Illinois limited liability company,
    Its General Partner
By: /s/ Charles J. Moore

    Charles J. Moore, President

BANC FUND VIII L.P.
By: MidBanc VIII L.P.
    an Illinois limited partnership,
    Its General Partner
By: THE BANC FUNDS COMPANY, L.L.C.
    an Illinois limited liability company,
    Its General Partner

By: /s/ Charles J. Moore

    Charles J. Moore, President