UNITED STATES
                 SECURITIES AND EXCHANGE COMMISSION
                        Washington, DC 20549

                            SCHEDULE 13G
            Under the Securities and Exchange Act of 1934
                         (Amendment No. 1)

                     Avalon Holdings Corporation
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                         (Name of Issuer)

                       Class A Common Stock
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                  (Title of Class of Securities)

                             05343P109
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                          (CUSIP Number)

                         April 30, 2017
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    (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. 05343P109   13G


1     Name of Reporting Person / IRS Identification Number:
      Advisory Research Microcap Value Fund / 36-4440337

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2     Check the Appropriate Box if a Member of a Group    (a)  [ ]
      			                                  (b)  [ ]

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3     SEC Use Only

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4     Citizenship or Place of Organization
      Illinois

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   Number of
                   5     Sole Voting Power
    Shares               0 Shares
                   -----------------------------------------------
 Beneficially
                   6     Shared Voting Power
   Owned By              140,033 Shares
                   -----------------------------------------------
     Each
                   7     Sole Dispositive Power
   Reporting             0 Shares
                   -----------------------------------------------
    Person
                   8     Shared Dispositive Power
     With                140,033 Shares
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9     Aggregate Amount Beneficially Owned by Each Reporting Person
      140,033 Shares

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10    Check if the Aggregate Amount in Row (9) Excludes Certain
      Shares  [ ]

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11    Percent of Class Represented by Amount in Row (9)
      4.4%

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12    Type of Reporting Person
      PN

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Item 1     (a)  Name of Issuer: Avalon Holdings Corporation
Item 1     (b)  Name of Issuer's Principal Executive Offices:
                One American Way
		Warren, OH 44484

Item 2     (a)  Person Filing: Advisory Research Microcap Value Fund LP
Item 2     (b)  Address: 180 North Stetson St., Suite 5500
                         Chicago, IL  60601

Item 2     (c)  Citizenship: Advisory Research Microcap Value Fund LP
                             is an Illinois Limited Partnership

Item 2     (d)  Title of Class of Securities: Classs A Common Stock
Item 2     (e)  CUSIP Number: 05343P109

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:

		Not applicable.

Item 4     Ownership

           (a)  Amount Beneficially Owned:
                Advisory Research, Inc. 140,033 Shares

           (b)  Percent of Class           4.4%

           (c)  Number of shares as to which reporting person has:
                (i)    Sole Voting Power        0 	      Shares
                (ii)   Shared Voting Power      140,033       Shares
                (iii)  Sole Dispositive Power   0             Shares
                (iv)   Shared Dispositive Power 140,033       Shares

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: Not Applicable


Item 8     Identification and Classification if 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 acquired and are held in the ordinary
           course of business and 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 such securities and were not acquired and are
           not held in connection with or as a participant
           in any transaction having such purposes 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.

			05/08/2017
			----------------------------------
			Date

			ADVISORY RESEARCH MICROCAP VALUE FUND LP
			By: Advisory Research, Inc. its General
			    Partner

			By /s/ Christopher D. Crawshaw
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			Signature

			Christopher D. Crawshaw
			President, CEO
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			Name/Title