<SEC-DOCUMENT>0001171843-25-007780-index.html : 20251208 <SEC-HEADER>0001171843-25-007780.hdr.sgml : 20251208 <ACCEPTANCE-DATETIME>20251205174656 ACCESSION NUMBER: 0001171843-25-007780 CONFORMED SUBMISSION TYPE: 6-K PUBLIC DOCUMENT COUNT: 5 CONFORMED PERIOD OF REPORT: 20251205 FILED AS OF DATE: 20251208 DATE AS OF CHANGE: 20251205 FILER: 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: 6-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-31518 FILM NUMBER: 251554066 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 </SEC-HEADER> <DOCUMENT> <TYPE>6-K <SEQUENCE>1 <FILENAME>f6k_120525.htm <DESCRIPTION>FORM 6-K <TEXT> Document 1 - file: f6k_120525.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>tbl.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: tbl.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>hdr1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: hdr1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>hdr2.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: hdr2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>hdr3.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: hdr3.jpg
</DOCUMENT> </SEC-DOCUMENT>