Security key
88031M109
TENARIS SA - Ordinary Shares, $1.00 par value per share (TS)
CUSIP: 88031M109
Q1 2025 13F Holders as of 31 Mar 2025
- Security type / class
- Equity / Ordinary Shares, $1.00 par value per share
- Total 13F shares
- 50,748,772
- Total 13F value
- $1,984,794,448
- Share change
- +486,380
- Put/Call ratio
- 108%
- SEC-reported price per share
- $39.11
- Number of holders
- 222
- Value change
- +$22,057,160
- Number of buys
- 98
- Number of sells
- 115
- Shares outstanding
- 1,008,870,971
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2025
Institutions
222
Top holders
10
TS full security history
Ownership snapshot
Full 13F holder table
TENARIS SA SEC filings
TENARIS SA company facts
Broader feeds
Ownership snapshot
Top reported holders of TS - TENARIS SA - Ordinary Shares, $1.00 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Westwood Global Investmen...
Disclosed value leader
Westwood Global Investmen...
Comparable rows
15/15
Latest evidence
31 Dec 2024
13F
Lead comparable stake: 0.78%
Showing 1-6 of 15 holder rows.
Quick read
Westwood Global Investments, LLC leads the comparable SEC ownership view at 0.78%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Westwood Global Investments, LLC's linked filing trail.
Comparable ownership
Top 5
Westwood Global Investments, LLC
0.78%
MILLENNIUM MANAGEMENT LLC
0.28%
FMR LLC
0.27%
RENAISSANCE TECHNOLOGIES LLC
0.25%
WELLINGTON MANAGEMENT GROUP LLP
0.23%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Westwood Global Investments, LLC |
13F
Company
|
0.78%
|
$299,075,540
7,914,145 shares
|
— | 31 Dec 2024 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
0.28%
|
$106,444,151
2,816,728 shares
|
— | 31 Dec 2024 |
| FMR LLC |
13F
Company
|
0.27%
|
$103,301,977
2,733,580 shares
|
— | 31 Dec 2024 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.25%
|
$95,190,894
2,518,944 shares
|
— | 31 Dec 2024 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
0.23%
|
$88,098,164
2,331,256 shares
|
— | 31 Dec 2024 |
| VAN ECK ASSOCIATES CORP |
13F
Company
|
0.23%
|
$87,334,000
2,311,035 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
222
Shares
50,748,772
Rows available
222
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2025 vs Q1 2025 Across Filers
Q1 2025 holders
222
Q1 2025 holders
222
Holder diff
0
| Investor | Q1 2025 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q1 2025 value | Value change | Value Chg % |
|---|