TENARIS SA
TSNYSEMaterials · Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) · SEC filings ↗ · Compare ⊕
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SEC XBRL · annualNo structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).
Signs
● 1 severe● 0 good- Filed a late-filing notice (Form NT) — missed an SEC deadline
Derived from the company's own SEC figures (fundamentals, forensic scores, filing discipline) — descriptive factors, not advice or a forecast.
Risk flags
late SEC filings- NT 20-Fmissed a reporting deadline ↗May 1, 2015
A Form NT means the company notified the SEC it would file a periodic report late — often an accounting, audit or liquidity warning sign. Also search SEC enforcement actions for this company.
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- San Faustin S.A.Activist (13D)Feb 10, 2026
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 3.6M | 1.9 | -18.2% |
| Apr 30, 2026 | 4.4M | 2.7 | -10.0% |
| Apr 15, 2026 | 4.9M | 2.2 | -33.0% |
| Mar 31, 2026 | 7.4M | 3.0 | -2.4% |
| Mar 13, 2026 | 7.5M | 3.7 | +34.5% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Recent SEC filings
All filings ↗- SDFORM SDMay 22, 2026
- 6-KFORM 6-KMay 13, 2026
- 6-KFORM 6-KMay 13, 2026
- 6-KFORM 6-KMay 13, 2026
- 6-KFORM 6-KMay 11, 2026
- 6-KFORM 6-KMay 11, 2026
- 6-KFORM 6-KMay 7, 2026
- 6-KFORM 6-KMay 7, 2026
- 6-KFORM 6-KMay 7, 2026
- 6-KFORM 6-KApr 13, 2026
- 6-KFORM 6-KApr 13, 2026
- 6-KFORM 6-KMar 31, 2026
- IRANNOTICEIRAN NOTICEMar 31, 2026
- 20-FMar 31, 2026
- 6-KFORM 6-KMar 31, 2026
Event-driven situations (3)
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