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Tenaris
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Overview Fund Activity

218 hedge funds and large institutions have $1.42B invested in Tenaris in 2025 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 87 increasing their positions, 67 reducing their positions, and 38 closing their positions.

Holders
218
Holders Change
-6
Holders Change %
-2.68%
% of All Funds
2.93%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
36
Increased
87
Reduced
67
Closed
38
Calls
$5.68M
Puts
$9.4M
Net Calls
-$3.72M
Net Calls Change
-$4.11M

Top Buyers

1
SG
1
Sourcerock Group
Colorado
$115M
2
SCM
2
SIR Capital Management
New York
$25.8M
3
UBS Group
3
UBS Group
Switzerland
$59.3M
4
Capstone Investment Advisors
4
Capstone Investment Advisors
New York
$34.5M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$35.2M

Top Sellers

1
ACM
1
Alua Capital Management
New York
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$64.4M
3
Holocene Advisors
3
Holocene Advisors
New York
$0
4
MIM
4
Merewether Investment Management
Texas
$20M
5
Morgan Stanley
5
Morgan Stanley
New York
$41.8M
Name Market Value Shares Shares
Change 		Shares
Change %
SG
1
Sourcerock Group
Colorado
$115M 3,086,075 +635,817 +26%
Renaissance Technologies
2
Renaissance Technologies
New York
$108M 2,891,544 +188,700 +7%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$86M 2,298,468 -26,010 -1%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$78.5M 2,099,275 -227,842 -10%
Balyasny Asset Management
5
Balyasny Asset Management
Illinois
$66.1M 1,767,924 +53,155 +3%
ECA
6
Encompass Capital Advisors
New York
$64.8M 1,732,781 -364,759 -17%
Citadel Advisors
7
Citadel Advisors
Florida
$64.4M 1,722,807 -2,043,503 -54%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$63.5M 1,697,997 -5,661 -0.3%
VanEck Associates
9
VanEck Associates
New York
$60.4M 1,615,694 -202,205 -11%
UBS Group
10
UBS Group
Switzerland
$59.3M 1,584,876 +498,770 +46%
Morgan Stanley
11
Morgan Stanley
New York
$41.8M 1,118,756 -712,550 -39%
Dimensional Fund Advisors
12
Dimensional Fund Advisors
Texas
$35.2M 941,466 +366,651 +64%
Goldman Sachs
13
Goldman Sachs
New York
$34.8M 930,231 -458,195 -33%
Capstone Investment Advisors
14
Capstone Investment Advisors
New York
$34.5M 921,547 +370,667 +67%
Millennium Management
15
Millennium Management
New York
$29.1M 776,963 -400,296 -34%
Massachusetts Financial Services
16
Massachusetts Financial Services
Massachusetts
$27.6M 737,760 -17,234 -2%
SCM
17
SIR Capital Management
New York
$25.8M 688,935 +508,028 +281%
BlackRock
18
BlackRock
New York
$23.5M 627,099 -30,069 -5%
Bank of America
19
Bank of America
North Carolina
$22.3M 595,604 +191,858 +48%
MVP
20
Medina Value Partners
California
$20.8M 556,052 +38,259 +7%
MIM
21
Merewether Investment Management
Texas
$20M 533,515 -760,218 -59%
AssetMark Inc
22
AssetMark Inc
California
$17.5M 469,229 +19,391 +4%
AA
23
ABC Arbitrage
France
$17.5M 467,268 +334,755 +253%
HL
24
Harding Loevner
New Jersey
$16.9M 450,593 -145,053 -24%
FGP
25
Freestone Grove Partners
California
$13.6M 362,510 +362,510 New
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