Renaissance Technologies (RenTech)'s TS Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 3.2 M shares of Tenaris S.A. (TS) worth $186.16 M, representing 0.29% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 46 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in TS, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2019, adding 3.62 M shares. Largest reduction occurred in Q1 2021, reducing 1.72 M shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Tenaris (TS) Holding Value Over Time
Track share changes against reported price movement
Quarterly Tenaris (TS) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +235,400 | Add 7.94% | 3.2 M | $58.18 |
| Q4 2025 | -386,300 | Reduce 11.53% | 2.96 M | $38.45 |
| Q3 2025 | +459,100 | Add 15.88% | 3.35 M | $35.77 |
| Q2 2025 | +188,700 | Add 6.98% | 2.89 M | $37.40 |
| Q1 2025 | +183,900 | Add 7.30% | 2.7 M | $39.11 |
| Q4 2024 | -300,200 | Reduce 10.65% | 2.52 M | $37.79 |
| Q3 2024 | +227,100 | Add 8.76% | 2.82 M | $31.79 |
| Q2 2024 | +819,500 | Add 46.23% | 2.59 M | $30.52 |
| Q1 2024 | +941,200 | Add 113.21% | 1.77 M | $39.27 |
| Q4 2023 | -650,600 | Reduce 43.90% | 831,344 | $34.76 |
| Q3 2023 | -348,600 | Reduce 19.04% | 1.48 M | $31.60 |
| Q2 2023 | +774,800 | Add 73.39% | 1.83 M | $0.03 |
| Q1 2023 | -8,000 | Reduce 0.75% | 1.06 M | $0.03 |
| Q4 2022 | -511,284 | Reduce 32.46% | 1.06 M | $0.04 |
| Q3 2022 | -593,500 | Reduce 27.37% | 1.58 M | $25.84 |
| Q2 2022 | -434,300 | Reduce 16.69% | 2.17 M | $25.69 |
| Q1 2022 | -819,600 | Reduce 23.95% | 2.6 M | $30.07 |
| Q4 2021 | -1.6 M | Reduce 31.81% | 3.42 M | $20.86 |
| Q3 2021 | -1.52 M | Reduce 23.19% | 5.02 M | $21.11 |
| Q2 2021 | -1.58 M | Reduce 19.51% | 6.53 M | $21.90 |
| Q1 2021 | -1.72 M | Reduce 17.46% | 8.12 M | $22.69 |
| Q4 2020 | -1.33 M | Reduce 11.94% | 9.84 M | $15.95 |
| Q3 2020 | +1.19 M | Add 11.97% | 11.17 M | $9.85 |
| Q2 2020 | +1.22 M | Add 13.90% | 9.98 M | $12.93 |
| Q1 2020 | +1.01 M | Add 12.99% | 8.76 M | $12.05 |
| Q4 2019 | +2.71 M | Add 53.81% | 7.75 M | $22.64 |
| Q3 2019 | +3.62 M | Add 253.71% | 5.04 M | $21.18 |
| Q2 2019 | +658,600 | Add 85.95% | 1.42 M | $26.31 |
| Q1 2019 | -1.57 M | Reduce 67.17% | 766,300 | $28.25 |
| Q4 2018 | +2.33 M | New Buy | 2.33 M | $21.32 |
| Q3 2018 | -678,100 | Sold Out | 0 | $0.00 |
| Q2 2018 | +678,100 | New Buy | 678,100 | $36.39 |
| Q1 2018 | -674,200 | Sold Out | 0 | $0.00 |
| Q4 2017 | +171,800 | Add 34.20% | 674,200 | $31.86 |
| Q3 2017 | -86,900 | Reduce 14.75% | 502,400 | $28.31 |
| Q2 2017 | -363,799 | Reduce 38.17% | 589,300 | $31.14 |
| Q1 2017 | +953,099 | New Buy | 953,099 | $34.14 |
| Q2 2016 | -124,500 | Sold Out | 0 | $0.00 |
| Q1 2016 | +124,500 | New Buy | 124,500 | $24.76 |
| Q4 2015 | -425,100 | Sold Out | 0 | $0.00 |
| Q3 2015 | +236,100 | Add 124.92% | 425,100 | $24.11 |
| Q2 2015 | +116,500 | Add 160.69% | 189,000 | $27.02 |
| Q1 2015 | -338,400 | Reduce 82.36% | 72,500 | $28.00 |
| Q4 2014 | +410,900 | New Buy | 410,900 | $30.21 |
| Q1 2014 | -295,700 | Sold Out | 0 | $0.00 |
| Q4 2013 | +295,700 | New Buy | 295,700 | $43.69 |
Renaissance Technologies (RenTech)'s Tenaris Investment FAQs
Renaissance Technologies (RenTech) first purchased Tenaris S.A. (TS) in Q4 2013, acquiring 295,700 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Tenaris S.A. (TS) for 46 quarters since Q4 2013.
Renaissance Technologies (RenTech)'s largest addition to Tenaris S.A. (TS) was in Q3 2019, adding 5,040,000 shares worth $106.75 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 3,199,744 shares of Tenaris S.A. (TS), valued at approximately $186.16 M.
As of the Q1 2026 filing, Tenaris S.A. (TS) represents approximately 0.29% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Tenaris S.A. (TS) was 11,169,900 shares, as reported at the end of Q3 2020.