Tenaris SA
TS- Exchange
- NYSE
- 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; 285 institutions reported holding it in 13F filings for Q2 2026, worth $2.13B in total; no superinvestor holds it.
Other share classesTNRSF
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +25 vs. previous quarter
- 285
- 13F valueReported value at the end of Q2 2026
- $2.13B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding TS, Q2 2026
No superinvestor reported holding TS at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Tenaris SA insiders from Form 4, newest first.
No open-market purchases or sales by Tenaris SA insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Tenaris SA at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 6,760,952 | $375.2M | 0.02% | −1,490,807−18.1% | Reduced |
| Renaissance Technologies LLC | 3,056,044 | $169.6M | 0.23% | −143,700−4.5% | Reduced |
| Van Eck Associates Corp | 2,478,526 | $137.5M | 0.08% | −414,506−14.3% | Reduced |
| Wellington Management Group LLP | 2,458,033 | $136.4M | 0.02% | +52,999+2.2% | Added |
| Price T Rowe Associates Inc | 1,502,839 | $83.4M | 0.01% | +57,629+4.0% | Added |
| Morgan Stanley | 1,238,988 | $68.8M | 0.00% | +60,919+5.2% | Added |
| Goldman Sachs Group Inc | 1,179,501 | $65.5M | 0.01% | +458,607+63.6% | Added |
| Merewether Investment Management, LP | 1,130,692 | $62.7M | 1.18% | +1,130,692 | New |
| Dimensional Fund Advisors LP | 1,039,883 | $57.7M | 0.01% | −81,124−7.2% | Reduced |
| Holocene Advisors, LP | 1,030,105 | $57.2M | 0.13% | +1,030,105 | New |