<SEC-DOCUMENT>0001213900-25-016997.txt : 20250225
<SEC-HEADER>0001213900-25-016997.hdr.sgml : 20250225
<ACCEPTANCE-DATETIME>20250225140547
ACCESSION NUMBER:		0001213900-25-016997
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250225
DATE AS OF CHANGE:		20250225

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENARIS SA
		CENTRAL INDEX KEY:			0001190723
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-78699
		FILM NUMBER:		25661838

	BUSINESS ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, 4TH FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449
		BUSINESS PHONE:		1-888-300-5432

	MAIL ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, 4TH FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAN FAUSTIN S.A.
		CENTRAL INDEX KEY:			0001429586
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			N4
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, GROUND FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449
		BUSINESS PHONE:		(352) 2720-9600

	MAIL ADDRESS:	
		STREET 1:		26, BOULEVARD ROYAL, GROUND FLOOR
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-2449

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	San Faustin N.V.
		DATE OF NAME CHANGE:	20080312
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13D" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13D/A</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: SAN FAUSTIN S.A. -->
          <cik>0001429586</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>10</amendmentNo>
      <securitiesClassTitle>Ordinary Shares, $1.00 par value per share</securitiesClassTitle>
      <dateOfEvent>02/24/2025</dateOfEvent>
      <previouslyFiledFlag>false</previouslyFiledFlag>
      <issuerInfo>
        <issuerCIK>0001190723</issuerCIK>
        <issuerCUSIP>88031M109</issuerCUSIP>
        <issuerName>Tenaris SA</issuerName>
        <address>
          <com:street1>26, BOULEVARD ROYAL, 4TH FLOOR</com:street1>
          <com:city>LUXEMBOURG</com:city>
          <com:stateOrCountry>N4</com:stateOrCountry>
          <com:zipCode>L-2449</com:zipCode>
        </address>
      </issuerInfo>
      <authorizedPersons>
        <notificationInfo>
          <personName>Fernando J. Mantilla</personName>
          <personPhoneNum>35227209600</personPhoneNum>
          <personAddress>
            <com:street1>26, Boulevard Royal,</com:street1>
            <com:street2>Ground Floor,</com:street2>
            <com:city>Grand-Duchy of Luxembourg</com:city>
            <com:stateOrCountry>N4</com:stateOrCountry>
            <com:zipCode>L-2449</com:zipCode>
          </personAddress>
        </notificationInfo>
      </authorizedPersons>
    </coverPageHeader>
    <reportingPersons>
      <reportingPersonInfo>
        <reportingPersonNoCIK>Y</reportingPersonNoCIK>
        <reportingPersonName>ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN</reportingPersonName>
        <fundType>OO</fundType>
        <legalProceedings>N</legalProceedings>
        <citizenshipOrOrganization>P7</citizenshipOrOrganization>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>713605187.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>713605187.00</sharedDispositivePower>
        <aggregateAmountOwned>713605187.00</aggregateAmountOwned>
        <isAggregateExcludeShares>N</isAggregateExcludeShares>
        <percentOfClass>66.5</percentOfClass>
        <typeOfReportingPerson>HC</typeOfReportingPerson>
        <commentContent>Note to Row 4 (Source of funds): please refer to "Item 1 Comment" below.

Note to Row 13 (Percent of class represented by amount in Row (11)): The percent of class figures set forth in this Amendment No. 10 are calculated based on 1,162,757,528 issued Ordinary Shares (as defined below), of which 89,945,494 were held by Tenaris S.A. as treasury stock as of February 21, 2025, as published on the website of Tenaris S.A.</commentContent>
      </reportingPersonInfo>
      <reportingPersonInfo>
        <reportingPersonCIK>0001429586</reportingPersonCIK>
        <reportingPersonNoCIK>N</reportingPersonNoCIK>
        <reportingPersonName>SAN FAUSTIN S.A.</reportingPersonName>
        <fundType>OO</fundType>
        <legalProceedings>N</legalProceedings>
        <citizenshipOrOrganization>N4</citizenshipOrOrganization>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>713605187.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>713605187.00</sharedDispositivePower>
        <aggregateAmountOwned>713605187.00</aggregateAmountOwned>
        <isAggregateExcludeShares>N</isAggregateExcludeShares>
        <percentOfClass>66.5</percentOfClass>
        <typeOfReportingPerson>CO</typeOfReportingPerson>
        <commentContent>Note to Row 4 (Source of funds): please refer to "Item 1 Comment" below.

Note to Row 13 (Percent of class represented by amount in Row (11)): The percent of class figures set forth in this Amendment No. 10 are calculated based on 1,162,757,528 issued Ordinary Shares (as defined below), of which 89,945,494 were held by Tenaris S.A. as treasury stock as of February 21, 2025, as published on the website of Tenaris S.A.</commentContent>
      </reportingPersonInfo>
      <reportingPersonInfo>
        <reportingPersonNoCIK>Y</reportingPersonNoCIK>
        <reportingPersonName>TECHINT HOLDINGS S.A R.L.</reportingPersonName>
        <fundType>OO</fundType>
        <legalProceedings>N</legalProceedings>
        <citizenshipOrOrganization>N4</citizenshipOrOrganization>
        <soleVotingPower>713605187.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>713605187.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
        <aggregateAmountOwned>713605187.00</aggregateAmountOwned>
        <isAggregateExcludeShares>N</isAggregateExcludeShares>
        <percentOfClass>66.5</percentOfClass>
        <typeOfReportingPerson>CO</typeOfReportingPerson>
        <commentContent>Note to Row 4 (Source of funds): please refer to "Item 1 Comment" below.

Note to Row 13 (Percent of class represented by amount in Row (11)): The percent of class figures set forth in this Amendment No. 10 are calculated based on 1,162,757,528 issued Ordinary Shares (as defined below), of which 89,945,494 were held by Tenaris S.A. as treasury stock as of February 21, 2025, as published on the website of Tenaris S.A.</commentContent>
      </reportingPersonInfo>
    </reportingPersons>
    <items1To7>
      <item1>
        <securityTitle>Ordinary Shares, $1.00 par value per share</securityTitle>
        <issuerName>Tenaris SA</issuerName>
        <commentText>This Amendment No. 10 amends and supplements the Schedule 13D originally filed on February 14th, 2011 (this "Amendment No. 10"), as further amended by Amendments No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8 and No. 9, on behalf of RP STAK, SAN FAUSTIN and TECHINT HOLDINGS (as defined thereunder), relating to the Ordinary Shares, par value $1 per share of Tenaris S.A. (the "Ordinary Shares"). This Amendment No. 10 reflects an increase by 1.06% of the percent of class represented by the Ordinary Shares held by such Reporting Persons, from 65.46% to 66.52%, as reported on Rows 13 of the cover pages of this Schedule 13D, as a result of repurchases of Ordinary Shares made by Tenaris S.A. in the open market in the period from December 9, 2024 to February 21, 2025, under Tenaris S.A.'s second share buyback program publicly announced on November 10, 2024. Except as specifically provided herein, this Amendment No. 10 does not modify any of the information previously reported on the Schedule 13D and its amendments.</commentText>
      </item1>
      <item2>
        <filingPersonName>ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN ("RP STAK")
Fascinatio Boulevard 764, 2909 VA Capelle aan den IJssel, The Netherlands.
RP STAK is a private foundation (stichting) organized under the laws of The Netherlands. No person or group of persons controls RP STAK.</filingPersonName>
        <principalBusinessAddress>SAN FAUSTIN S.A. ("SAN FAUSTIN")
26, Boulevard Royal, Ground Floor, L-2449 Luxembourg.
SAN FAUSTIN is a societe anonyme (public limited liability company) organized under the laws of the Grand-Duchy of Luxembourg. RP STAK continues to control SAN FAUSTIN (i.e. it continues to have the ability to influence matters affecting, or submitted to a vote of the shareholders of SAN FAUSTIN, including the election of directors and the approval of certain corporate transactions and other matters concerning SAN FAUSTIN's policies).</principalBusinessAddress>
        <principalJob>TECHINT HOLDINGS S.A R.L. ("TECHINT HOLDINGS")
26, Boulevard Royal, Ground Floor, L-2449 Luxembourg.
TECHINT HOLDINGS is a societe a responsabilite limitee (private limited liability company) organized under the laws of the Grand-Duchy of Luxembourg. All of the shares of TECHINT HOLDINGS are held by SAN FAUSTIN.

The name, residence or business address, present principal occupation or employment (and the name, principal business and address of any corporation or other organization in which such employment is conducted) and citizenship of each voting committee member, executive officer or director, as applicable, of each Reporting Person are set forth in Schedule I to the Amendment No. 6 to the Schedule 13D of Tenaris S.A., dated January 22, 2024, and incorporated into this Item 2 by reference.

During the last five years, none of the Reporting Persons, nor, to the knowledge of the Reporting Persons, none of the persons listed on Schedule I to the Amendment No. 6 to the Schedule 13D of Tenaris S.A., dated January 22, 2024, has (i) been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to federal or state securities laws or finding any violation with respect to such laws.

Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person assumes responsibility for the accuracy or completeness of information given by another Reporting Person.</principalJob>
      </item2>
      <item5>
        <percentageOfClassSecurities>RP STAK. See items (7) through (11) and (13) on page 2
SAN FAUSTIN. See items (7) through (11) and (13) on page 3
TECHINT HOLDINGS. See items (7) through (11) and (13) on page 4</percentageOfClassSecurities>
        <numberOfShares>RP STAK. See items (7) through (11) and (13) on page 2
SAN FAUSTIN. See items (7) through (11) and (13) on page 3
TECHINT HOLDINGS. See items (7) through (11) and (13) on page 4</numberOfShares>
        <transactionDesc>There have been no transactions in Ordinary Shares effected by the Reporting Persons or, to the best of the Reporting Person's knowledge, any person or entity identified on Schedule I to the Amendment No. 6 to the Schedule 13D of Tenaris S.A., dated January 22, 2024, during the last 60 days.</transactionDesc>
        <listOfShareholders>Not applicable.</listOfShareholders>
        <date5PercentOwnership>Not applicable.</date5PercentOwnership>
      </item5>
      <item7>
        <filedExhibits>A Power of Attorney of ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN dated October 31st, 2023.***

B Power of Attorney of SAN FAUSTIN S.A., dated September 28th, 2023.***

C Power of Attorney of TECHINT HOLDINGS S.a r.l., dated September 28th, 2023.***

***Previously filed as an exhibit to the Schedule 13D of Tenaris S.A. dated November 2nd, 2023 and incorporated by reference in this Amendment No. 10.</filedExhibits>
      </item7>
    </items1To7>
    <signatureInfo>
      <signaturePerson>
        <signatureReportingPerson>ROCCA &amp; PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN</signatureReportingPerson>
        <signatureDetails>
          <signature>/s/ Fernando J. Mantilla</signature>
          <title>Fernando J. Mantilla/Attorney-in-fact</title>
          <date>02/24/2025</date>
        </signatureDetails>
      </signaturePerson>
      <signaturePerson>
        <signatureReportingPerson>SAN FAUSTIN S.A.</signatureReportingPerson>
        <signatureDetails>
          <signature>/s/ Fernando J. Mantilla</signature>
          <title>Fernando J. Mantilla/Attorney-in-fact</title>
          <date>02/24/2025</date>
        </signatureDetails>
      </signaturePerson>
      <signaturePerson>
        <signatureReportingPerson>TECHINT HOLDINGS S.A R.L.</signatureReportingPerson>
        <signatureDetails>
          <signature>/s/ Fernando J. Mantilla</signature>
          <title>Fernando J. Mantilla/Attorney-in-fact</title>
          <date>02/24/2025</date>
        </signatureDetails>
      </signaturePerson>
    </signatureInfo>
  </formData>
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</DOCUMENT>
</SEC-DOCUMENT>
