Optiver Holding’s Tenaris TS Stock Holding History

Optiver Holding’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
2024 Q4	–	Sell	-50,000	Closed	-$1.59M	–	1184
2024 Q3	$1.59M	Buy	+50,000	New	+$1.48M	﹤0.01%	366

Other funds holding TS

WGI

Westwood Global Investments Boston, Massachusetts $2.68B AUM 76.4% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Optiver Holding's TS Position: Q4 2025 in Review

Optiver Holding sold out of Tenaris (TS) in Q4 2025, closing a stake of 905,328 shares — an estimated $32.4M sold.

Optiver Holding first reported a position in TS in Q1 2021 and held it in 18 quarters. The position peaked at $32.4M in Q3 2025. 229 funds tracked by Wall St. Rank hold TS as of Q4 2025.

Optiver Holding reported no remaining Tenaris position as of Q4 2025 after selling out during the quarter.
Optiver Holding sold 905,328 Tenaris shares in Q4 2025, an estimated $32.4M.
Optiver Holding first reported a position in Tenaris in Q1 2021 and held it in 18 quarters.
Optiver Holding's Tenaris position peaked at $32.4M in Q3 2025.
229 funds tracked by Wall St. Rank held Tenaris as of Q4 2025.

Based on Optiver Holding's 13F filing for Q4 2025, filed 17 Feb 2026.