TENARIS SA — SCHEDULE 13D/A Filings
5 SCHEDULE 13D/A filings on record
This page lists all SCHEDULE 13D/A filings submitted to the SEC by TENARIS SA (TNRSF), sorted by most recent first. Each row links to the full filing on EdgarLookup. TENARIS SA has filed 5 SCHEDULE 13D/A documents with the SEC since 2002. To view all SEC filings by TENARIS SA, see the full filings list.
All
20-F
20-F/A
425
6-K
8-A12B
8-A12B/A
CERTNYS
CORRESP
EFFECT
F-3ASR
F-4
F-4/A
F-6
F-6EF
IRANNOTICE
NO ACT
NT 20-F
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-T
SC TO-T/A
SCHEDULE 13D/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13D/A | — | 0001213900-26-014102 | Feb 10, 2026 | — |
| SCHEDULE 13D/A | — | 0001213900-25-122779 | Dec 17, 2025 | — |
| SCHEDULE 13D/A | — | 0001213900-25-089522 | Sep 19, 2025 | — |
| SCHEDULE 13D/A | — | 0001213900-25-061921 | Jul 8, 2025 | — |
| SCHEDULE 13D/A | — | 0001213900-25-016997 | Feb 25, 2025 | — |