Castle Hook Partners’s Transocean RIG Stock Holding History

Castle Hook Partners’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 Q2	$51.2M	Buy	+10,470,395	New	+$65.4M	0.23%	43
2023 Q1	–	Sell	-1,193,317	Closed	-$5.44M	–	37
2022 Q4	$5.44M	Buy	+1,193,317	New	+$4.6M	0.37%	27

Other funds holding RIG

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

SPC

Slate Path Capital New York $7.22B AUM 110.75% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Castle Hook Partners's RIG Position: Q2 2026 in Review

Castle Hook Partners opened a new position in Transocean (RIG) in Q2 2026: 10,470,395 shares worth $51.2M. The stake represents 0.23% of the portfolio and ranks #43 among its holdings. This is a return to the name: Castle Hook Partners previously reported a position in RIG as recently as Q4 2022.

Castle Hook Partners first reported a position in RIG in Q4 2022 and has held it in 2 quarters since. 536 funds tracked by Wall St. Rank hold RIG as of Q2 2026.

Castle Hook Partners held 10,470,395 shares of Transocean worth $51.2M as of Q2 2026.
Transocean was a new Castle Hook Partners position in Q2 2026.
Transocean made up 0.23% of Castle Hook Partners's portfolio in Q2 2026, its #43 holding.
Castle Hook Partners first reported a position in Transocean in Q4 2022 and has held it in 2 quarters since.
536 funds tracked by Wall St. Rank held Transocean as of Q2 2026.

Based on Castle Hook Partners's 13F filing for Q2 2026, filed 14 Aug 2026.