TSTenaris S.A.

$53.86

Who owns TS

257 institutions reported holding TS for 2026Q1, together 3.7% of the company, more than the 223 a quarter earlier.

257

Institutions reporting a position · as of 2026Q1 · up from 223 the quarter before

Shares held by institutions
39.3M

Shares held by institutions · 3.7% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.29B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
2.2%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
69
Positions exited
36
Added to
81
Reduced
61
Top 10 holdersof the company
2.8%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q125739.3M$2.29B
2025Q422332.9M$1.26B
2025Q321735.7M$1.28B
2025Q221645.9M$1.71B
2025Q122151.7M$2.01B
2024Q422750.8M$1.90B
2024Q319650.8M$1.60B
2024Q221955.7M$1.70B
2024Q123355.9M$2.19B
2023Q421862.2M$2.16B
2023Q321261.3M$1.94B
2023Q219769.0M$1.93B
2023Q122466.2M$1.74B
2022Q421463.8M$2.07B
2022Q317871.9M$1.66B
2022Q218071.4M$1.61B
Largest reported holders, 2026Q1
HolderShares% of companyValue
FMR LLC8.3M0.78%$480M
Westwood Global Investments, LLC6.7M0.63%$388M
RENAISSANCE TECHNOLOGIES LLC3.2M0.30%$186M
VAN ECK ASSOCIATES CORP2.9M0.27%$168M
WELLINGTON MANAGEMENT GROUP LLP2.4M0.23%$140M
PRICE T ROWE ASSOCIATES INC /MD/1.4M0.14%$84M
MORGAN STANLEY1.2M0.11%$69M
Invesco Ltd.1.2M0.11%$68M
DIMENSIONAL FUND ADVISORS LP1.1M0.11%$65M
Driehaus Capital Management LLC0.9M0.08%$52M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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