Mariner
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Mariner’s Tenaris TS Stock Holding History

Mariner’s Portfolio TS Stock Details TS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.34M Buy
40,307
+9,082
+29% +$447K ﹤0.01% 1444
2025
Q4 		$1.2M Buy
31,225
+1,432
+5% +$55.2K ﹤0.01% 1823
2025
Q3 		$1.07M Sell
29,793
-4,312
-13% -$157K ﹤0.01% 1850
2025
Q2 		$1.27M Buy
34,105
+5,916
+21% +$203K ﹤0.01% 1635
2025
Q1 		$1.1M Buy
28,189
+759
+3% +$29.1K ﹤0.01% 1621
2024
Q4 		$1.04M Buy
27,430
+1,245
+5% +$44.2K ﹤0.01% 1619
2024
Q3 		$832K Sell
26,185
-7,733
-23% -$229K ﹤0.01% 1748
2024
Q2 		$1.03M Sell
33,918
-3,104
-8% -$108K ﹤0.01% 1482
2024
Q1 		$1.45M Buy
37,022
+8,765
+31% +$304K ﹤0.01% 1276
2023
Q4 		$982K Buy
28,257
+4,485
+19% +$150K ﹤0.01% 1441
2023
Q3 		$751K Sell
23,772
-1,544
-6% -$49.9K ﹤0.01% 1501
2023
Q2 		$758K Buy
25,316
+253
+1% +$7.03K ﹤0.01% 1466
2023
Q1 		$712K Buy
25,063
+2,608
+12% +$85.9K ﹤0.01% 1470
2022
Q4 		$789K Sell
22,455
-189
-0.8% -$6.05K ﹤0.01% 1362
2022
Q3 		$586K Buy
+22,644
New +$599K ﹤0.01% 1326

Other funds holding TS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
WGI
Westwood Global Investments Boston, Massachusetts $2.68B AUM 76.4% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

Mariner's TS Position: Q1 2026 in Review

Mariner increased its Tenaris (TS) stake by 29% in Q1 2026, buying an estimated $447K and bringing the position to 40,307 shares worth $2.34M. The position accounts for ﹤0.01% of the portfolio, ranked #1444.

Mariner first reported a position in TS in Q3 2022 and has held it in 15 quarters since. 263 funds tracked by Wall St. Rank hold TS as of Q1 2026.

  • Mariner held 40,307 shares of Tenaris worth $2.34M as of Q1 2026.
  • Mariner bought 9,082 Tenaris shares in Q1 2026, an estimated $447K.
  • Tenaris made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #1444 holding.
  • Mariner first reported a position in Tenaris in Q3 2022 and has held it in 15 quarters since.
  • 263 funds tracked by Wall St. Rank held Tenaris as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.