<SEC-DOCUMENT>0001784406-21-000005.txt : 20211004
<SEC-HEADER>0001784406-21-000005.hdr.sgml : 20211004
<ACCEPTANCE-DATETIME>20211004170744
ACCESSION NUMBER:		0001784406-21-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211004
DATE AS OF CHANGE:		20211004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Roberts Lauren M
		CENTRAL INDEX KEY:			0001784406

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08491
		FILM NUMBER:		211303799

	MAIL ADDRESS:	
		STREET 1:		6500 N MINERAL DR
		STREET 2:		SUITE 200
		CITY:			COEUR D ALENE
		STATE:			ID
		ZIP:			83815

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HECLA MINING CO/DE/
		CENTRAL INDEX KEY:			0000719413
		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
		IRS NUMBER:				770664171
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6500 N MINERAL DRIVE SUITE 200
		STREET 2:		NONE
		CITY:			COEUR D'ALENE
		STATE:			ID
		ZIP:			83815-9408
		BUSINESS PHONE:		2087694100

	MAIL ADDRESS:	
		STREET 1:		6500 N MINERAL DRIVE SUITE 200
		STREET 2:		NONE
		CITY:			COEUR D'ALENE
		STATE:			ID
		ZIP:			83815-9408
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000719413</issuerCik>
        <issuerName>HECLA MINING CO/DE/</issuerName>
        <issuerTradingSymbol>HL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001784406</rptOwnerCik>
            <rptOwnerName>Roberts Lauren M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6500 N MINERAL DR</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>COEUR D ALENE</rptOwnerCity>
            <rptOwnerState>ID</rptOwnerState>
            <rptOwnerZipCode>83815</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr. VP &amp; COO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2415</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2415</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>12913</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.2314</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12913</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>688870</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Held as 200.783 units in Mr. Robert's 41(k) account under the Hecla Mining Company Capital Accumulation Plan, and estimated to be 2,415 shares.</footnote>
        <footnote id="F2">Each share of phantom stock is the economic equivalent of one share of common stock.  The shares become payable in common stock at the election of the reporting person, upon the reporting person's termination of services as an officer, or upon a specified future date as previously elected by the reporting person.</footnote>
        <footnote id="F3">Mr. Roberts deferred part of his salary into the Hecla Mining Company Key Employee deferred Compensation Plan during the period July 1, 2021 to September 30, 2021.  At the end of the third quarter, Mr. Roberts was then credited with a number of phantom stock units that were deferred under the plan.</footnote>
        <footnote id="F4">The share price is based on the average closing price of Hecla's common stock for each day during the third quarter.</footnote>
        <footnote id="F5">Consists of 105,598 shares held directly 143,168 unvested performance-based units, 115,371 unvested restricted stock units, and 324,733 shares of phantom stock held under the Key Employee Deferred Compensation Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Tami D. Whitman, Attorney-in-Fact for Lauren M. Roberts</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
