<SEC-DOCUMENT>0000950103-18-000156.txt : 20180104
<SEC-HEADER>0000950103-18-000156.hdr.sgml : 20180104
<ACCEPTANCE-DATETIME>20180104173336
ACCESSION NUMBER:		0000950103-18-000156
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180102
FILED AS OF DATE:		20180104
DATE AS OF CHANGE:		20180104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Larson David
		CENTRAL INDEX KEY:			0001610616

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08789
		FILM NUMBER:		18511185

	MAIL ADDRESS:	
		STREET 1:		80 CERRITOS AVE
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94127

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN SHARED HOSPITAL SERVICES
		CENTRAL INDEX KEY:			0000744825
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				942918118
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2 EMBARCADERO CENTER
		STREET 2:		SUITE 410
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
		BUSINESS PHONE:		415-788-5300

	MAIL ADDRESS:	
		STREET 1:		2 EMBARCADERO CENTER
		STREET 2:		SUITE 410
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>dp84870_4-larson.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-01-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000744825</issuerCik>
        <issuerName>AMERICAN SHARED HOSPITAL SERVICES</issuerName>
        <issuerTradingSymbol>AMS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001610616</rptOwnerCik>
            <rptOwnerName>Larson David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>80 CERRITOS AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94127</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7844</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>66508</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These restricted stock units vest over a series of four (4) successive quarters from issuance but settlement has been deferred until after termination of the reporting person's service.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Craig Tagawa on behalf of David Larson</signatureName>
        <signatureDate>2018-01-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>dp84870_ex24.htm
<DESCRIPTION>EXHIBIT 24
<TEXT>
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<P STYLE="margin: 0"></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>Exhibit
24</B></FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>POWER
OF ATTORNEY</B></FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">Know all by these presents, that
the undersigned hereby constitutes and appoints each of Craig Tagawa, Emily Anne Bertumen, and Chloe Tagawa as the undersigned&rsquo;s
true and lawful attorneys-in-fact to:</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt">(1)</FONT></TD><TD><FONT STYLE="font-size: 10pt">execute
                                         for and on behalf of the undersigned, in the undersigned&rsquo;s capacity as a reporting
                                         person pursuant to Section 16 of the Securities Exchange Act of 1934, as amended (the
                                         &ldquo;<B>Exchange Act</B>&rdquo;), and the rules thereunder of American Shared Hospital
                                         Services (the &ldquo;<B>Company</B>&rdquo;), Forms 3, 4 and 5 in accordance with Section
                                         16(a) of the Exchange Act;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 11pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt">(2)</FONT></TD><TD><FONT STYLE="font-size: 10pt">do
                                         and perform any and all acts for and on behalf of the undersigned which may be necessary
                                         or desirable to complete and execute any such Form 3, 4 or 5 and timely file such form
                                         with the United States Securities and Exchange Commission and stock exchange or similar
                                         authority; and</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 11pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-size: 10pt">(3)</FONT></TD><TD><FONT STYLE="font-size: 10pt">take
                                         any other action of any type whatsoever in connection with the foregoing which, in the
                                         opinion of any of such attorneys-in-fact, may be of benefit to, in the best interest
                                         of, or legally required by, the undersigned, it being understood that the documents executed
                                         by any of such attorneys-in-fact on behalf of the undersigned pursuant to this Power
                                         of Attorney shall be in such form and shall contain such terms and conditions as any
                                         of such attorneys-in-fact may approve in the discretion of any of such attorneys-in-fact.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 11pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">The undersigned hereby grants
to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary,
or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming
all that any of such attorneys-in-fact, or the substitute or substitutes of any of such attorneys-in-fact, shall lawfully do or
cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned&rsquo;s responsibilities to comply with Section 16 of the Exchange Act.</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">This Power of Attorney shall
remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned&rsquo;s
holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">IN WITNESS WHEREOF, the undersigned
has caused this Power of Attorney to be executed as of this 27<SUP>th</SUP> day of December, 2017.</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><FONT STYLE="font-size: 10pt">Signature:
<U>/s/ David Larson</U></FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><FONT STYLE="font-size: 10pt">Print Name:
David Larson</FONT></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"></P>

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