SAN FAUSTIN S.A. - 17 Sep 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
1,041,759,397 shares
Disclosed Ownership
713,605,187 shares
Ownership
68%
Form type
SCHEDULE 13D/A
Filing time
19 Sep 2025, 16:01:31 UTC
Date of event
17 Sep 2025
Previous filing
08 Jul 2025
Next filing
17 Dec 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% 713,605,187 0 713,605,187 ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN /s/ Fernando J. Mantilla / Attorney-in-fact
SAN FAUSTIN S.A. 68% 713,605,187 0 713,605,187 SAN FAUSTIN S.A. /s/ Fernando J. Mantilla / Attorney-in-fact 0001429586
TECHINT HOLDINGS S.A R.L. 68% 713,605,187 713,605,187 0 TECHINT HOLDINGS S.A R.L. /s/ Fernando J. Mantilla / Attorney-in-fact