Driehaus Capital Management’s Transocean RIG Stock Holding History

Driehaus Capital Management’s Portfolio RIG Stock Details RIG Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$47.8M	Buy	+7,210,869	New	+$40.6M	0.35%	101
2023 Q4	–	Sell	-3,356,408	Closed	-$27.6M	–	447
2023 Q3	$27.6M	Buy	+3,356,408	New	+$27.4M	0.36%	88
2017 Q1	–	Sell	-42,372	Closed	-$625K	–	607
2016 Q4	$625K	Buy	+42,372	New	+$502K	0.02%	394

Other funds holding RIG

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

SPC

Slate Path Capital New York $6.73B AUM 95.97% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

PGA

Pilgrim Global Advisors Reno, Nevada $772M AUM 51.79% 1-Year Est. Return

Driehaus Capital Management's RIG Position: Q1 2026 in Review

Driehaus Capital Management opened a new position in Transocean (RIG) in Q1 2026: 7,210,869 shares worth $47.8M. The stake represents 0.35% of the portfolio and ranks #101 among its holdings. This is a return to the name: Driehaus Capital Management previously reported a position in RIG as recently as Q3 2023.

Driehaus Capital Management first reported a position in RIG in Q4 2016 and has held it in 3 quarters since. 536 funds tracked by Wall St. Rank hold RIG as of Q1 2026.

Driehaus Capital Management held 7,210,869 shares of Transocean worth $47.8M as of Q1 2026.
Transocean was a new Driehaus Capital Management position in Q1 2026.
Transocean made up 0.35% of Driehaus Capital Management's portfolio in Q1 2026, its #101 holding.
Driehaus Capital Management first reported a position in Transocean in Q4 2016 and has held it in 3 quarters since.
536 funds tracked by Wall St. Rank held Transocean as of Q1 2026.

Based on Driehaus Capital Management's 13F filing for Q1 2026, filed 15 May 2026.