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229 hedge funds and large institutions have $1.27B invested in Tenaris in 2025 Q4 according to their latest regulatory filings, with 48 funds opening new positions, 76 increasing their positions, 69 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed

30% more first-time investments, than exits

New positions opened: 48 | Existing positions closed: 37

10% more repeat investments, than reductions

Existing positions increased: 76 | Existing positions reduced: 69

4% more funds holding

Funds holding: 221229 (+8)

0.47% less ownership

Funds ownership: 6.14%5.67% (-0.47%)

1% less capital invested

Capital invested by funds: $1.28B → $1.27B (-$9.7M)

42% less call options, than puts

Call options by funds: $3.39M | Put options by funds: $5.83M

50% less funds holding in top 10

Funds holding in top 10: 42 (-2)

Holders
229
Holders Change
+8
Holders Change %
+3.62%
% of All Funds
2.78%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
48
Increased
76
Reduced
69
Closed
37
Calls
$3.39M
Puts
$5.83M
Net Calls
-$2.44M
Net Calls Change
-$2.69M
Name Holding Trade Value Shares
Change
Change in
Stake
WGI
1
Westwood Global Investments
Massachusetts
$280M -$12.3M -319,256 -4%
Renaissance Technologies
2
Renaissance Technologies
New York
$114M -$14.9M -386,300 -12%
Wellington Management Group
3
Wellington Management Group
Massachusetts
$103M +$21.1M +546,144 +26%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$84.5M -$3.72M -96,616 -4%
VanEck Associates
5
VanEck Associates
New York
$77.6M +$15.8M +408,592 +25%
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$63.4M -$5.31M -137,621 -8%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$47.5M +$3.88M +100,568 +9%
Morgan Stanley
8
Morgan Stanley
New York
$45M -$74.4K -1,929 -0.2%
Citadel Advisors
9
Citadel Advisors
Florida
$35.9M +$35.5M +920,799 +7,940%
Goldman Sachs
10
Goldman Sachs
New York
$31.5M +$4.41M +114,393 +16%
BlackRock
11
BlackRock
New York
$26.8M +$2.13M +55,306 +9%
Massachusetts Financial Services
12
Massachusetts Financial Services
Massachusetts
$25.2M +$2.06M +53,553 +9%
MVP
13
Medina Value Partners
California
$21.6M +$20.9K +541 +0.1%
Invesco
14
Invesco
Georgia
$21M +$17.6M +457,332 +515%
AssetMark Inc
15
AssetMark Inc
California
$19.4M +$914K +23,702 +5%
D.E. Shaw & Co
16
D.E. Shaw & Co
New York
$18.1M -$4.84M -125,527 -21%
JF
17
Jump Financial
Illinois
$13.3M +$1.02M +26,336 +8%
Bank of America
18
Bank of America
North Carolina
$13M +$5.53M +143,439 +74%
Grantham, Mayo, Van Otterloo & Co (GMO)
19
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$12.8M +$2.37M +61,358 +23%
HL
20
Harding Loevner
New Jersey
$12M -$3.73M -96,865 -24%
Point72 Asset Management
21
Point72 Asset Management
Connecticut
$10.2M +$10.3M +266,087 New
KP
22
Kiltearn Partners
United Kingdom
$9.57M -$1.91M -49,600 -17%
Balyasny Asset Management
23
Balyasny Asset Management
Illinois
$8.8M +$8.83M +228,960 New
Northern Trust
24
Northern Trust
Illinois
$8.65M -$194K -5,035 -2%
UBS Group
25
UBS Group
Switzerland
$8.56M -$1.8M -46,790 -17%