Driehaus Capital Management’s Tenaris TS Stock Holding History

Driehaus Capital Management’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	$55.6M	Buy	1,001,129 +112,783	+13%	+$6.85M	0.32%	102
2026 Q1	$51.7M	Buy	+888,346	New	+$43.8M	0.38%	94
2024 Q2	–	Sell	-487,497	Closed	-$19.1M	–	442
2024 Q1	$19.1M	Sell	487,497 -328,863	-40%	-$11.4M	0.19%	154
2023 Q4	$28.4M	Sell	816,360 -288,577	-26%	-$9.67M	0.34%	93
2023 Q3	$34.9M	Sell	1,104,937 -29,400	-3%	-$950K	0.45%	59
2023 Q2	$34M	Buy	+1,134,337	New	+$31.5M	0.43%	72
2022 Q3	–	Sell	-727,762	Closed	-$18.7M	–	407
2022 Q2	$18.7M	Sell	727,762 -347,719	-32%	-$10.7M	0.3%	109
2022 Q1	$32.3M	Buy	+1,075,481	New	+$28M	0.4%	81
2018 Q2	–	Sell	-716,782	Closed	-$24.9M	–	562
2018 Q1	$24.9M	Buy	+716,782	New	+$24.6M	0.88%	20
2014 Q2	–	Sell	-320,817	Closed	-$14.2M	–	625
2014 Q1	$14.2M	Buy	+320,817	New	+$13.9M	0.45%	47

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

Driehaus Capital Management's TS Position: Q2 2026 in Review

Driehaus Capital Management increased its Tenaris (TS) stake by 13% in Q2 2026, buying an estimated $6.85M and bringing the position to 1,001,129 shares worth $55.6M. The position accounts for 0.32% of the portfolio, ranked #102.

Driehaus Capital Management first reported a position in TS in Q1 2014 and has held it in 10 quarters since. 282 funds tracked by Wall St. Rank hold TS as of Q2 2026.

Driehaus Capital Management held 1,001,129 shares of Tenaris worth $55.6M as of Q2 2026.
Driehaus Capital Management bought 112,783 Tenaris shares in Q2 2026, an estimated $6.85M.
Tenaris made up 0.32% of Driehaus Capital Management's portfolio in Q2 2026, its #102 holding.
Driehaus Capital Management first reported a position in Tenaris in Q1 2014 and has held it in 10 quarters since.
282 funds tracked by Wall St. Rank held Tenaris as of Q2 2026.

Based on Driehaus Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.