Jane Street’s Tenaris TS Stock Holding History

Jane Street’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 Q2	$2.81M	Buy	50,600 +18,000	+55%	+$1.09M	﹤0.01%	4614
2026 Q1	$1.9M	Buy	32,600 +12,100	+59%	+$596K	﹤0.01%	5197
2025 Q4	$788K	Buy	+20,500	New	+$790K	﹤0.01%	6653
2025 Q2	–	Sell	-11,000	Closed	-$430K	–	10915
2025 Q1	$430K	Buy	+11,000	New	+$422K	﹤0.01%	7147
2023 Q3	–	Sell	-14,100	Closed	-$422K	–	9408
2023 Q2	$422K	Buy	14,100 +5,500	+64%	+$153K	﹤0.01%	6576
2023 Q1	$244K	Buy	+8,600	New	+$283K	﹤0.01%	7522
2022 Q1	–	Sell	-33,100	Closed	-$694K	–	11031
2021 Q4	$694K	Sell	33,100 -27,200	-45%	-$595K	﹤0.01%	6650
2021 Q3	$1.27M	Buy	60,300 +36,900	+158%	+$749K	﹤0.01%	5428
2021 Q2	$510K	Buy	23,400 +7,900	+51%	+$179K	﹤0.01%	7196
2021 Q1	$349K	Buy	+15,500	New	+$296K	﹤0.01%	7451
2017 Q4	–	Sell	-8,900	Closed	-$252K	–	5193
2017 Q3	$252K	Buy	+8,900	New	+$260K	﹤0.01%	3887

Other funds holding TS

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

MIM

Merewether Investment Management Dallas, Texas $5.31B AUM 73.7% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Holocene Advisors New York $44.4B AUM 57.89% 1-Year Est. Return

Jane Street's TS Position: Q2 2026 in Review

Jane Street increased its Tenaris (TS) stake by 611% in Q2 2026, buying an estimated $37.4M and bringing the position to 716,734 shares worth $39.8M. The position accounts for ﹤0.01% of the portfolio, ranked #1593.

Jane Street first reported a position in TS in Q3 2013 and has held it in 43 quarters since. 282 funds tracked by Wall St. Rank hold TS as of Q2 2026.

Jane Street held 716,734 shares of Tenaris worth $39.8M as of Q2 2026.
Jane Street bought 615,896 Tenaris shares in Q2 2026, an estimated $37.4M.
Tenaris made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #1593 holding.
Jane Street first reported a position in Tenaris in Q3 2013 and has held it in 43 quarters since.
282 funds tracked by Wall St. Rank held Tenaris as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.