<SEC-DOCUMENT>0001194794-18-000114.txt : 20180710
<SEC-HEADER>0001194794-18-000114.hdr.sgml : 20180710
<ACCEPTANCE-DATETIME>20180710175551
ACCESSION NUMBER:		0001194794-18-000114
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180710
FILED AS OF DATE:		20180710
DATE AS OF CHANGE:		20180710

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Di Piazza Samuel A Jr.
		CENTRAL INDEX KEY:			0001478420

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16533
		FILM NUMBER:		18947702

	MAIL ADDRESS:	
		STREET 1:		100 BROOKWOOD PLACE
		CITY:			BIRMINGHAM
		STATE:			AL
		ZIP:			35209

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_153125973603662.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-07-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001478420</rptOwnerCik>
            <rptOwnerName>Di Piazza Samuel A Jr.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PROASSURANCE COPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>100 BROOKWOOD PLACE</rptOwnerStreet2>
            <rptOwnerCity>BIRMINGHAM</rptOwnerCity>
            <rptOwnerState>AL</rptOwnerState>
            <rptOwnerZipCode>35209</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>2018-07-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>59</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>37.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12593</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"/>
            </conversionOrExercisePrice>
            <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 were acquired from ProAssurance Corporation under its Director Deferred Stock Compensation Plan (the &quot;Plan&quot;) and are exempt under Rule 16b-3. The Board of Directors may grant shares to directors at each annual meeting as part of their compensation and directors may elect to defer payment of the shares under the Plan. Any deferred shares are then credited to the electing director's account under the Plan, and accrue dividends as permitted by the Plan. On each subsequent dividend payment date, the accrued dividends are credited to the directors' deferred stock accounts as additional whole shares of deferred stock at the market price on the dividend payment date. Amounts attributable to fractional shares are denominated in dollars and applied toward additional shares of deferred stock on the next dividend payment date. Deferred stock will be paid solely in our shares of stock when the deferred stock is payable to the directors.</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, POA for the Reporting Person</signatureName>
        <signatureDate>2018-07-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
