DOSSIER · 13F Holders · Q1 2026Basic Materials · Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
TS
TENARIS S A
275 institutions still hold TENARIS S A as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 88031M109·Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)·275 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
275 institutions reported TS in Q1 2026. FMR LLC leads at 23.8% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.
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