<SEC-DOCUMENT>0001415889-25-022138.txt : 20250815
<SEC-HEADER>0001415889-25-022138.hdr.sgml : 20250815
<ACCEPTANCE-DATETIME>20250815202726
ACCESSION NUMBER:		0001415889-25-022138
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250815
DATE AS OF CHANGE:		20250815

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAGNITE, INC.
		CENTRAL INDEX KEY:			0001595974
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		ORGANIZATION NAME:           	06 Technology
		EIN:				208881738
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-36384
		FILM NUMBER:		251226092

	BUSINESS ADDRESS:	
		STREET 1:		1250 BROADWAY
		STREET 2:		15TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10001
		BUSINESS PHONE:		212-243-2769

	MAIL ADDRESS:	
		STREET 1:		1250 BROADWAY
		STREET 2:		15TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RUBICON PROJECT, INC.
		DATE OF NAME CHANGE:	20140106

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Buonasera David
		CENTRAL INDEX KEY:			0001966857
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O MAGNITE, INC.
		STREET 2:		1250 BROADWAY, 15TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10001
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
	<headerData>
        <submissionType>144</submissionType>
                <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001966857</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
        <liveTestFlag>LIVE</liveTestFlag>




                </filerInfo>
    </headerData>

     <formData>
        <issuerInfo>
            <issuerCik>0001595974</issuerCik>
			<issuerName>MAGNITE, INC.</issuerName>


			    <secFileNumber>001-36384</secFileNumber>


			<issuerAddress>
				<com:street1>1250 BROADWAY</com:street1>
                				<com:street2>15TH FLOOR</com:street2>
                				<com:city>NEW YORK</com:city>
				<com:stateOrCountry>NY</com:stateOrCountry>
				<com:zipCode>10001</com:zipCode>
			</issuerAddress>

			<issuerContactPhone>212-243-2769</issuerContactPhone>
			<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>David Buonasera</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>

			<relationshipsToIssuer>

				    <relationshipToIssuer>Officer</relationshipToIssuer>

			</relationshipsToIssuer>
		</issuerInfo>

				          <securitiesInformation>
			<securitiesClassTitle>Common</securitiesClassTitle>
			<brokerOrMarketmakerDetails>
				<name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
				<address>
				<com:street1>1 New York Plaza</com:street1>
                				<com:street2>8th Floor</com:street2>
                				<com:city>New York</com:city>
				<com:stateOrCountry>NY</com:stateOrCountry>
				<com:zipCode>10004</com:zipCode>
				</address>
			</brokerOrMarketmakerDetails>
			<noOfUnitsSold>8510</noOfUnitsSold>
			<aggregateMarketValue>201687.00</aggregateMarketValue>
			<noOfUnitsOutstanding>142399305</noOfUnitsOutstanding>
			<approxSaleDate>08/18/2025</approxSaleDate>
			<securitiesExchangeName>NASDAQ</securitiesExchangeName>
		</securitiesInformation>

    		       <securitiesToBeSold>
         <securitiesClassTitle>Common</securitiesClassTitle>
         <acquiredDate>08/15/2025</acquiredDate>
         <natureOfAcquisitionTransaction>Restricted Stock Unit- See Remarks</natureOfAcquisitionTransaction>
                  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
                  <isGiftTransaction>N</isGiftTransaction>
		          <amountOfSecuritiesAcquired>8510</amountOfSecuritiesAcquired>
                  <paymentDate>08/15/2025</paymentDate>
                  <natureOfPayment>Equity Compensation</natureOfPayment>
      </securitiesToBeSold>

    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>


     <securitiesSoldInPast3Months>
         <sellerDetails>
            <name>David Buonasera</name>
            <address>
               <com:street1>c/o Magnite, Inc.</com:street1>
                              <com:street2>1250 Broadway, 15th Floor</com:street2>
                              <com:city>New York</com:city>
               <com:stateOrCountry>NY</com:stateOrCountry>
               <com:zipCode>10001</com:zipCode>
            </address>
         </sellerDetails>
         <securitiesClassTitle>Common</securitiesClassTitle>
         <saleDate>06/30/2025</saleDate>
         <amountOfSecuritiesSold>9289</amountOfSecuritiesSold>
         <grossProceeds>204358.00</grossProceeds>
      </securitiesSoldInPast3Months>

     <securitiesSoldInPast3Months>
         <sellerDetails>
            <name>David Buonasera</name>
            <address>
               <com:street1>c/o Magnite, Inc.</com:street1>
                              <com:street2>1250 Broadway, 15th Floor</com:street2>
                              <com:city>New York</com:city>
               <com:stateOrCountry>NY</com:stateOrCountry>
               <com:zipCode>10001</com:zipCode>
            </address>
         </sellerDetails>
         <securitiesClassTitle>Common</securitiesClassTitle>
         <saleDate>05/27/2025</saleDate>
         <amountOfSecuritiesSold>8742</amountOfSecuritiesSold>
         <grossProceeds>139872.00</grossProceeds>
      </securitiesSoldInPast3Months>

     <securitiesSoldInPast3Months>
         <sellerDetails>
            <name>David Buonasera</name>
            <address>
               <com:street1>c/o Magnite, Inc.</com:street1>
                              <com:street2>1250 Broadway, 15th Floor</com:street2>
                              <com:city>New York</com:city>
               <com:stateOrCountry>NY</com:stateOrCountry>
               <com:zipCode>10001</com:zipCode>
            </address>
         </sellerDetails>
         <securitiesClassTitle>Common</securitiesClassTitle>
         <saleDate>05/23/2025</saleDate>
         <amountOfSecuritiesSold>3653</amountOfSecuritiesSold>
         <grossProceeds>54904.59</grossProceeds>
      </securitiesSoldInPast3Months>

    		<remarks>Shares sold to cover the Reporting Person's tax obligation resulting from settlement of vested Restricted Stock Units. The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by sell to cover transactions and does not represent a discretionary transaction by the Reporting Person.</remarks>

        <noticeSignature>
            <noticeDate>08/15/2025</noticeDate>
                        <signature> Aaron Saltz, attorney-in-fact for David Buonasera</signature>
        </noticeSignature>
	</formData>

    </edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>ex24-08162025_120824.htm
<TEXT>
<!DOCTYPE html PUBLIC "-//IETF//DTD HTML//EN">
<html><head><title>ex24-08162025_120824.htm</title></head><body style="margin-top:0;font-family:Times New Roman; font-size:10pt; color:#000000">
<p style="margin:0px" align="center"><b>POWER OF ATTORNEY</b></p>
<p style="margin:0px" align="center"><br></p>
<p style="margin:0px" align="center">(For Executing Forms 3, 4, and 5 and Form 144)</p>
<p style="margin:0px" align="center"><br></p>
<p style="margin:0px; text-indent:61.067px" align="justify">Know all by these presents, that the undersigned hereby constitutes and appoints each of Aaron Saltz, Brian Gephart and Elie Tawil, of Magnite, Inc. (the "<b><i>Company</i></b>"), signing individually, the undersigned's true and lawful attorneys-in-fact and agents to:</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:61.333px; width:122px; font-family:Courier New; float:left">(1)</p>
<p style="margin:0px; padding-left:122px; text-indent:-2px" align="justify">prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the Securities and Exchange Commission (the "<b><i>SEC</i></b>") Forms 3, 4 and 5 (including any amendments thereto) in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the "<b><i>Exchange Act</i></b>"), and the rules thereunder in the undersigned's capacity as an officer, director or beneficial owner of more than 10% of a registered class of securities of the Company;</p>
<p style="margin:0px; clear:left" align="justify"><br></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:61.333px; width:122px; font-family:Courier New; float:left">(2)</p>
<p style="margin:0px; padding-left:122px; text-indent:-2px" align="justify">prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the SEC Forms 144 (including any amendments thereto) in accordance with Rule 144 of the Exchange Act;</p>
<p style="margin:0px; clear:left" align="justify"><br></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:61.467px; width:122.133px; float:left">(3)</p>
<p style="margin:0px; text-indent:-2px" align="justify">do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to execute such Forms 3, 4 or 5 and Form 144 (including amendments thereto) and timely file such forms with the SEC and any stock exchange or any similar authority; and</p>
<p style="margin:0px; clear:left" align="justify"><br></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:61.467px; width:122.133px; float:left">(4)</p>
<p style="margin:0px; text-indent:-2px" align="justify">take any other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required of the undersigned, it being understood that the documents executed by such attorney-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 such attorney-in-fact may approve in the attorney-in-fact's discretion.</p>
<p style="margin:0px; clear:left" align="justify"><br></p>
<p style="margin:0px; text-indent:61.067px" align="justify">The undersigned hereby grants to each such attorneyinfact 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 such attorneyinfact, or such attorneyinfact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. &nbsp;The undersigned acknowledges that the foregoing attorneys-in-fact, and their substitutes, in serving in such capacity at the request of the undersigned, are not assuming (nor is the Company assuming) any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act.</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px; text-indent:61.067px" align="justify">This Power of Attorney shall remain in full force and effect until the earliest to occur of (a) the undersigned is no longer required to file Forms 3, 4 and 5 and Form 144 with respect to the undersigned's holdings of and transactions in securities issued by the Company, (b) revocation by the undersigned in a signed writing delivered to the Company and the foregoing attorneys-in fact or (c) as to any attorney-in-fact individually, until such attorney-in-fact is no longer employed by the Company. &nbsp;</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px; text-indent:61.067px" align="justify">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the date written below.</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify">Date: &nbsp;August 15, 2025</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify">/s/ David Buonasera</p>
<p style="margin:0px" align="justify">Name: David Buonasera</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify"><br></p>
<div style="width:268.8px">
<p style="line-height:10pt; margin:0px; width:268.8px; font-family:Arial; font-size:7pt">317495110 v1</p>
<p style="line-height:10pt; margin:0px"><br></p>
</div>
<p style="margin:0px"><br></p>
</body></html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
