TENARIS SA

PublicCIK: 1190723
TSNYSETNRSFOTC
Location

LUXEMBOURG, N4

13F Filings

Institutional Holders

TENARIS SATS— Latest position per institution from SEC 13F filings

15

Institutional holders

55.57M

Total shares held

2.21B

Estimated value

2.78M

Avg. position size

1

PENDAL GROUP LTD

CIK 1541741

Shares

13.39M

Value

298.27M

Filed

Dec 31, 2022

2

FMR LLC

CIK 315066

Shares

8.25M

Value

480.09M

Filed

Mar 31, 2026

3

WESTWOOD GLOBAL INVESTMENTS, LLC

CIK 1356513

Shares

6.67M

Value

388.28M

Filed

Mar 31, 2026

4

RENAISSANCE TECHNOLOGIES LLC

CIK 1037389

Shares

3.20M

Value

186.16M

Filed

Mar 31, 2026

5

SOURCEROCK GROUP LLC

CIK 1822531

Shares

3.09M

Value

115.42M

Filed

Jun 30, 2025

6

VAN ECK ASSOCIATES CORP

CIK 869178

Shares

2.89M

Value

168.32K

Filed

Mar 31, 2026

7

WELLINGTON MANAGEMENT GROUP LLP

CIK 902219

Shares

2.41M

Value

139.92M

Filed

Mar 31, 2026

8

ALUA CAPITAL MANAGEMENT LP

CIK 1827442

Shares

2.39M

Value

93.37M

Filed

Mar 31, 2025

9

PRICE T ROWE ASSOCIATES INC /MD/

CIK 80255

Shares

1.45M

Value

84.08K

Filed

Mar 31, 2026

10

ENCOMPASS CAPITAL ADVISORS LLC

CIK 1541901

Shares

1.43M

Value

51.25M

Filed

Sep 30, 2025

11

HOLOCENE ADVISORS, LP

CIK 1700574

Shares

1.20M

Value

46.90M

Filed

Mar 31, 2025

12

MORGAN STANLEY

CIK 895421

Shares

1.18M

Value

68.54M

Filed

Mar 31, 2026

13

INVESCO LTD.

CIK 914208

Shares

1.17M

Value

67.98M

Filed

Mar 31, 2026

14

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

1.12M

Value

65.22M

Filed

Mar 31, 2026

15

CLARK CAPITAL MANAGEMENT GROUP, INC.

CIK 1352187

Shares

1.02M

Value

30.60M

Filed

Jun 30, 2023

16

WEISS MULTI-STRATEGY ADVISERS LLC

CIK 1388312

Shares

1.01M

Value

35.12K

Filed

Dec 31, 2023

17

CWA ASSET MANAGEMENT GROUP, LLC

CIK 1667134

Shares

987.29K

Value

54.78M

Filed

Jun 30, 2026

18

CAPSTONE INVESTMENT ADVISORS, LLC

CIK 1426196

Shares

921.55K

Value

34.47M

Filed

Jun 30, 2025

19

OPTIVER HOLDING B.V.

CIK 1859606

Shares

905.33K

Value

32.38M

Filed

Sep 30, 2025

20

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 938206

Shares

888.35K

Value

51.68M

Filed

Mar 31, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.