TSTenaris S.A.

$57.34+67% 1Y

Who owns TS

278 institutions reported holding TS for 2026Q2, together 3.6% of the company, more than the 259 a quarter earlier.

278

Institutions reporting a position · as of 2026Q2 · up from 259 the quarter before

Shares held by institutions
38.4M

Shares held by institutions · 3.6% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.13B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
1.5%

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

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
52
Positions exited
34
Added to
93
Reduced
72
Top 10 holdersof the company
2.1%
Shares sold shortsettled Sep 15, 2026
3.9M
Short interestof shares outstanding
0.36%
Days to coverat the average daily volume
3.4
Change in the short positionsince the Aug 31, 2026 count
+7.1%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q227838.4M$2.13B
2026Q125939.3M$2.29B
2025Q422432.9M$1.26B
2025Q321835.7M$1.28B
2025Q221745.9M$1.71B
2025Q122251.7M$2.01B
2024Q422850.8M$1.90B
2024Q319850.8M$1.60B
2024Q222155.7M$1.70B
2024Q123455.9M$2.19B
2023Q422062.2M$2.16B
2023Q321461.3M$1.94B
2023Q219969.0M$1.93B
2023Q122666.3M$1.74B
2022Q421663.8M$2.07B
2022Q317971.9M$1.66B
Largest reported holders, 2026Q2
HolderShares% of companyValue
FMR LLC6.8M0.64%$375M
RENAISSANCE TECHNOLOGIES LLC3.1M0.29%$170M
VAN ECK ASSOCIATES CORP2.5M0.24%$138M
WELLINGTON MANAGEMENT GROUP LLP2.5M0.23%$136M
PRICE T ROWE ASSOCIATES INC /MD/1.5M0.14%$83M
MORGAN STANLEY1.2M0.12%$69M
GOLDMAN SACHS GROUP INC1.2M0.11%$65M
Merewether Investment Management, LP1.1M0.11%$63M
DIMENSIONAL FUND ADVISORS LP1.0M0.10%$58M
Holocene Advisors, LP1.0M0.10%$57M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20263.9M0.36%3.4
Aug 31, 20263.6M0.34%2.5
Aug 14, 20263.6M0.34%1.9
Jul 31, 20264.2M0.39%4.2
Jul 15, 20264.5M0.43%4.2
Jun 30, 20264.8M0.46%4.1
Jun 15, 20264.8M0.46%4.0
May 29, 20264.7M0.45%2.4
May 15, 20263.6M0.34%1.9
Apr 30, 20264.4M0.42%2.7
Apr 15, 20264.9M0.47%2.2
Mar 31, 20267.4M0.70%3.0

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. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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