<SEC-DOCUMENT>0001194794-18-000096.txt : 20180523
<SEC-HEADER>0001194794-18-000096.hdr.sgml : 20180523
<ACCEPTANCE-DATETIME>20180523193539
ACCESSION NUMBER:		0001194794-18-000096
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180523
FILED AS OF DATE:		20180523
DATE AS OF CHANGE:		20180523

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCMAHON JOHN J JR
		CENTRAL INDEX KEY:			0001190997

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16533
		FILM NUMBER:		18856329

	MAIL ADDRESS:	
		STREET 1:		1927 1ST AVENUE NORTH
		STREET 2:		5TH FLOOR
		CITY:			BIRMINGHAM
		STATE:			AL
		ZIP:			35203

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROASSURANCE CORP
		CENTRAL INDEX KEY:			0001127703
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				631261433
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 BROOKWOOD PLACE
		CITY:			BIRMINGHAM
		STATE:			AL
		ZIP:			35209
		BUSINESS PHONE:		2058774400
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152711852558652.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-05-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001127703</issuerCik>
        <issuerName>PROASSURANCE CORP</issuerName>
        <issuerTradingSymbol>PRA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001190997</rptOwnerCik>
            <rptOwnerName>MCMAHON JOHN J JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROASSURANCE CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>100 BROOKWOOD PLACE</rptOwnerStreet2>
            <rptOwnerCity>BIRMINGHAM</rptOwnerCity>
            <rptOwnerState>AL</rptOwnerState>
            <rptOwnerZipCode>35209-6811</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>2018-05-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1511</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>40.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>41027</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
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            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>90.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>90</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>93.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>93</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares are awarded under the ProAssurance Corporation Director Deferred Stock Compensation Plan and are exempt under Rule 16b-3. This grant was recommended by the Compensation Committee, which is composed entirely independent directors (as disclosed on page 15 of our 2018 Proxy Statement), and was approved by our Board of Directors at its meeting on May 23, 2018. This year, the recommended and approved stock compensation grant was for shares having a value not to exceed $61,000. The number of whole shares is determined using the closing price of a share of stock on the New York Stock Exchange (NYSE) on the day of the Board of Directors meeting following the Annual Meeting of Shareholders. The NYSE closing price on May 23, 2018 was $40.35, resulting in a distribution to each non-management director of 1,511 shares.</footnote>
        <footnote id="F2">RSU's are equal in value to one share of Common Stock, issued on 10/5/17 under the 2014 Equity Incentive Plan and acquired under terms of the ProAssurance Corporation 2011 Employee Stock Ownership Plan. The RSUs vest upon the sooner of three years of continuous employment, termination of employment by reason of death or disability, for &quot;good reason,&quot; or a change of control of the Company. If a participant terminates employment more than twelve months but less than three years from the date of grant, the RSUs will partially vest based on the number of days that the participant was employed in the vesting period. Any RSUs that are unvested on termination of employment will be forfeited. In addition, if a participant withdraws shares purchased for his or her account, matching unvested RSUs will be forfeited. Upon vesting, we will pay the RSUs in shares of our Common Stock from those shares reserved for issuance under the 2014 Equity Incentive Plan with the value established at vesting.</footnote>
        <footnote id="F3">RSU's are equal in value to one share of Common Stock, issued on 10/5/16 under the 2014 Equity Incentive Plan and acquired under terms of the ProAssurance Corporation 2011 Employee Stock Ownership Plan. The RSUs vest upon the sooner of three years of continuous employment, termination of employment by reason of death or disability, for &quot;good reason,&quot; or a change of control of the Company. If a participant terminates employment more than twelve months but less than three years from the date of grant, the RSUs will partially vest based on the number of days that the participant was employed in the vesting period. Any RSUs that are unvested on termination of employment will be forfeited. In addition, if a participant withdraws shares purchased for his or her account, matching unvested RSUs will be forfeited. Upon vesting, we will pay the RSUs in shares of our Common Stock from those shares reserved for issuance under the 2014 Equity Incentive Plan with the value established at vesting.</footnote>
        <footnote id="F4">RSU's are equal in value to one share of Common Stock, issued on 10/5/15 under the 2014 Equity Incentive Plan and acquired under terms of the ProAssurance Corporation 2011 Employee Stock Ownership Plan. The RSUs will vest upon the sooner of three years of continuous employment, termination of employment by reason of death or disability, for &quot;good reason,&quot; or a change of control of the Company. If a participant terminates employment more than twelve months but less than three years from the date of grant, the RSUs will partially vest based on the number of days that the participant was employed in the vesting period. Any RSUs that are unvested on termination of employment will be forfeited. In addition, if a participant withdraws shares purchased for his or her account, matching unvested RSUs will be forfeited. Upon vesting, we will pay the RSUs in shares of our Common Stock from those shares reserved for issuance under the 2014 Equity Incentive Plan with the value established vesting.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Frank B. O'Neil as Attorney-in-Fact for the Reporting Person</signatureName>
        <signatureDate>2018-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
