Castle Hook Partners’s Somnigroup International SGI Stock Holding History

Castle Hook Partners’s Portfolio SGI Stock Details SGI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$122M	Buy	1,556,679 +1,547,519	+16,894%	+$113M	0.56%	27
2026 Q1	$677K	Buy	+9,160	New	+$795K	﹤0.01%	48
2025 Q3	–	Sell	-561,454	Closed	-$38.2M	–	98
2025 Q2	$38.2M	Buy	561,454 +86,435	+18%	+$5.44M	0.22%	45
2025 Q1	$28.4M	Buy	+475,019	New	+$28.7M	0.29%	31
2018 Q4	–	Sell	-730,860	Closed	-$9.67M	–	68
2018 Q3	$9.67M	Buy	+730,860	New	+$9.75M	0.28%	39

Other funds holding SGI

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

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Select Equity Group New York $20.2B AUM 17.52% 1-Year Est. Return

WPL

WINDACRE PARTNERSHIP LLC Houston, Texas $10.1B AUM 10.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Linonia Partnership New York $5.6B AUM 1.81% 1-Year Est. Return

Browning West Los Angeles, California $1.69B AUM 9.16% 1-Year Est. Return

ACM

Abrams Capital Management Boston, Massachusetts $5.48B AUM 3.63% 1-Year Est. Return

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

Castle Hook Partners increased its Somnigroup International (SGI) stake by 16,894% in Q2 2026, buying an estimated $113M and bringing the position to 1,556,679 shares worth $122M. The position accounts for 0.56% of the portfolio, ranked #27.

Castle Hook Partners first reported a position in SGI in Q3 2018 and has held it in 5 quarters since. 538 funds tracked by Wall St. Rank hold SGI as of Q2 2026.

Castle Hook Partners held 1,556,679 shares of Somnigroup International worth $122M as of Q2 2026.
Castle Hook Partners bought 1,547,519 Somnigroup International shares in Q2 2026, an estimated $113M.
Somnigroup International made up 0.56% of Castle Hook Partners's portfolio in Q2 2026, its #27 holding.
Castle Hook Partners first reported a position in Somnigroup International in Q3 2018 and has held it in 5 quarters since.
538 funds tracked by Wall St. Rank held Somnigroup International as of Q2 2026.

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