<SEC-DOCUMENT>0000935836-25-000450.txt : 20250707
<SEC-HEADER>0000935836-25-000450.hdr.sgml : 20250707
<ACCEPTANCE-DATETIME>20250707120521
ACCESSION NUMBER:		0000935836-25-000450
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250702
FILED AS OF DATE:		20250707
DATE AS OF CHANGE:		20250707

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LYTTON LAURENCE W
		CENTRAL INDEX KEY:			0001105806
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38907
		FILM NUMBER:		251107649

	MAIL ADDRESS:	
		STREET 1:		467 CENTRAL PARK WEST
		CITY:			NY
		STATE:			NY
		ZIP:			10025

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SONIM TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001178697
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				943336783
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4445 EASTGATE MALL
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		650-378-8100

	MAIL ADDRESS:	
		STREET 1:		4445 EASTGATE MALL
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-07-02</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001178697</issuerCik>
        <issuerName>SONIM TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>SONM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001105806</rptOwnerCik>
            <rptOwnerName>LYTTON LAURENCE W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>467 CENTRAL PARK WEST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NY</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <remarks>On July 2, 2025, the issuer filed a Form 8-K reporting that the issuer had closed the offering of 7,400,000 shares of the issuer's Common Stock on July 2, 2025. As a result of the change in the number of shares of Common Stock outstanding, the reporting person has ceased to beneficially own more than 10% of the outstanding Common Stock.</remarks>

    <ownerSignature>
        <signatureName>/s/ Laurence W. Lytton</signatureName>
        <signatureDate>2025-07-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
