<SEC-DOCUMENT>0001213900-25-089522-index.html : 20250919
<SEC-HEADER>0001213900-25-089522.hdr.sgml : 20250919
<ACCEPTANCE-DATETIME>20250919160131
ACCESSION NUMBER:		0001213900-25-089522
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250919
DATE AS OF CHANGE:		20250919

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
		EIN:				000000000

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-78699
		FILM NUMBER:		251326784

	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:           	
		EIN:				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>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>