Tenaris SA
TNRSF- Exchange
- OTC
- Industry
- Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- SEC CIK
- 0001190723
No open-market purchases or sales by Tenaris SA insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Other share classesTS
Holders of 5% or more of TNRSF
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Tenaris SA, largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of Tenaris SA on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
Schedule 13D and 13G filings on Tenaris SA, newest first.
No Schedule 13D or 13G filings on Tenaris SA are on file.
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Tenaris SA shares.
No Form 144 notices for Tenaris SA are on file.