TENARIS SA-ADR (TS) Stock Institutional Trading Activity


TENARIS SA-ADR (TS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Sequoia Financial Advisors, Ariel Appreciation Fund, Egerton Capital UK, and Viking Global Investors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-386,3002,964,344$113,979,027
Q3 2025Sequoia Financial AdvisorsBuy5,8305,830$208,531
Q3 2025Renaissance Technologies LLCBuy459,1003,350,644$119,852,536
Q2 2025Renaissance Technologies LLCBuy188,7002,891,544$108,143,746
Q1 2025Renaissance Technologies LLCBuy183,9002,702,844$105,708,229
Q4 2024Renaissance Technologies LLCSell-300,2002,518,944$95,190,894
Q3 2024Renaissance Technologies LLCBuy227,1002,819,144$89,620,588
Q2 2024Renaissance Technologies LLCBuy819,5002,592,044$79,109,183
Q1 2024Renaissance Technologies LLCBuy941,2001,772,544$69,608
Q4 2023Renaissance Technologies LLCSell-650,600831,344$28,898
Q3 2023Renaissance Technologies LLCSell-348,6001,481,944$46,829
Q2 2023Renaissance Technologies LLCBuy774,8001,830,544$54,825
Q1 2023Renaissance Technologies LLCSell-8,0001,055,744$30,004
Q4 2022Renaissance Technologies LLCSell-511,2841,063,744$37,401
Q3 2022Renaissance Technologies LLCSell-593,5001,575,028$40,699
Q2 2022Renaissance Technologies LLCSell-434,3002,168,528$55,709
Q1 2022Renaissance Technologies LLCSell-819,6002,602,828$78,267
Q4 2021Renaissance Technologies LLCSell-1,596,4723,422,428$71,392
Q3 2021Renaissance Technologies LLCSell-1,515,2005,018,900$105,949
Q2 2021Renaissance Technologies LLCSell-1,584,2006,534,100$143,097
Q1 2021Renaissance Technologies LLCSell-1,717,8008,118,300$184,204
Q4 2020Renaissance Technologies LLCSell-1,333,8009,836,100$156,886
Q3 2020Renaissance Technologies LLCBuy1,194,05211,169,900$110,024
Q2 2020Renaissance Technologies LLCBuy1,217,4009,975,848$128,988
Q1 2020Ariel Appreciation FundSell-263,149666,657$8,033
Q1 2020Renaissance Technologies LLCBuy1,006,6488,758,448$105,539
Q4 2019Ariel Appreciation FundSell-126,048929,806$21,051
Q4 2019Renaissance Technologies LLCBuy2,711,8007,751,800$175,501
Q3 2019Ariel Appreciation FundBuy29,6441,055,854$22,363
Q3 2019Renaissance Technologies LLCBuy3,615,1005,040,000$106,747

Frequently asked questions about TS activity

  • Which institutional owners are buying TS?

    Institutional owners buying TS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in TS activity?

    "Buy" means an investor increased their reported position in TS compared to the prior reporting period. This reflects growing exposure to TENARIS SA-ADR (TS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in TS increasing?

    Institutional interest in TS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.