San Faustin S.A. - Sep 17, 2025 SCHEDULE 13D/A Report for Tenaris S.A. Ordinary Shares, $1.00 par value per share (TS)

Filing Manager
SAN FAUSTIN S.A.
Reporting Manager
SAN FAUSTIN S.A.
Security
Tenaris S.A. Ordinary Shares, $1.00 par value per share
Symbol
TS
Shares outstanding
1.04B shares
Disclosed Ownership
714M shares
Ownership
68.5%
Form type
SCHEDULE 13D/A
Date filed
9/19/2025, 04:01 PM
Date of event
Sep 17, 2025
Previous filing
Jul 8, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN 68.5% 714M 0 714M ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN /s/ Fernando J. Mantilla / Attorney-in-fact
SAN FAUSTIN S.A. 68.5% 714M 0 714M SAN FAUSTIN S.A. /s/ Fernando J. Mantilla / Attorney-in-fact 0001429586
TECHINT HOLDINGS S.A R.L. 68.5% 714M 714M 0 TECHINT HOLDINGS S.A R.L. /s/ Fernando J. Mantilla / Attorney-in-fact