TENARIS S A (TS) is held by 113 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is FMR LLC as of Q1 2026.

Are institutions buying or selling TS?

In Q1 2026, 70 institutions opened or increased positions in TENARIS S A while 45 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on TS?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for TENARIS S A.

How many hedge funds hold TS?

113 institutional investors report holding TENARIS S A (TS) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into TS?

As of Q1 2026, tracked institutions in TENARIS S A show 70 buyers versus 45 sellers — net inflows.

TENARIS S A

TS·88031M109·US·ADR·Energy - Oil & Gas Equipment & Services-Activist

113

Holders

Avg rating(26 Elite)

$1.6B

Total Value

61% (124)

Fund Consensus

70 buying - 45 selling

Smart Money Verdict

View all

Held by 113 funds

26 elite

Who's Trading

ActivistR&ROCCA & PARTNERS STICHTING ADMINISTRATIEKANTOOR AANDELEN SAN FAUSTIN68.6%Feb 10, 2026

View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
FMR LLC	Increased	8.3M(+275.3%)	$480.1M	0.0%	+14.52%	51
RENAISSANCE TECHNOLOGIES LLC	Increased	3.2M(+7.9%)	$186.2M	0.3%	+70.35%	39
WELLINGTON MANAGEMENT GROUP LLP	Decreased	2.4M(-10.3%)	$139.9M	0.0%	+75.62%	0
PRICE T ROWE ASSOCIATES INC /MD/	Decreased	1.4M(-12.4%)	$84.1M	0.0%	+87.00%	0
MORGAN STANLEY	Increased	1.2M(+0.7%)	$68.5M	0.0%	+72.39%	30
Invesco Ltd.	Increased	1.2M(+113.9%)	$68M	0.0%	+20.42%	48
DIMENSIONAL FUND ADVISORS LP	Decreased	1.1M(-9.2%)	$65.2M	0.0%	+64.27%	0
DRIEHAUS CAPITAL MANAGEMENT LLC	New	888,346	$51.7M	0.4%	+4.97%	49
GOLDMAN SACHS GROUP INC	Decreased	720,894(-12.0%)	$41.9M	0.0%	+51.36%	0
BlackRock, Inc.	Increased	715,791(+2.8%)	$41.6M	0.0%	+50.21%	30
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	Decreased	646,854(-1.5%)	$38.1M	0.0%	+73.44%	0
UBS Group AG	Increased	498,978(+124.0%)	$29M	0.0%	+21.16%	46
ASSETMARK, INC	Decreased	490,777(-2.6%)	$28.6M	0.1%	+83.53%	0
Grantham, Mayo, Van Otterloo & Co. LLC	Increased	347,584(+4.6%)	$20.2M	0.1%	+61.16%	30
HARDING LOEVNER LP	Decreased	292,858(-5.9%)	$17M	0.2%	+149.91%	0
CITADEL ADVISORS LLC	Decreased	292,423(-68.6%)	$17M	0.0%	+43.32%	0
Capital Wealth Planning, LLC	New	240,514	$14M	0.1%	+4.97%	39
NORTHERN TRUST CORP	Decreased	217,898(-3.2%)	$12.7M	0.0%	+68.70%	0
STATE STREET CORP	Increased	203,178(+1.3%)	$11.8M	0.0%	+47.64%	28
Connor, Clark & Lunn Investment Management Ltd.	New	178,439	$10.4M	0.0%	+4.97%	38