William Blair & Company’s Somnigroup International SGI Stock Holding History

William Blair & Company’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	$568K	Sell	7,247 -3,722	-34%	-$273K	﹤0.01%	1177
2026 Q1	$811K	Sell	10,969 -3,904	-26%	-$339K	﹤0.01%	1004
2025 Q4	$1.33M	Buy	+14,873	New	+$1.3M	﹤0.01%	862
2022 Q1	–	Sell	-65,735	Closed	-$3.09M	–	2023
2021 Q4	$3.09M	Buy	65,735 +5,139	+8%	+$233K	0.01%	605
2021 Q3	$2.81M	Buy	60,596 +1,513	+3%	+$66.1K	0.01%	612
2021 Q2	$2.31M	Buy	+59,083	New	+$2.26M	0.01%	670

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

William Blair & Company's SGI Position: Q2 2026 in Review

William Blair & Company reduced its Somnigroup International (SGI) stake by 34% in Q2 2026, selling an estimated $273K and leaving 7,247 shares worth $568K. The position accounts for ﹤0.01% of the portfolio, ranked #1177.

William Blair & Company first reported a position in SGI in Q2 2021 and has held it in 6 quarters since. The position peaked at $3.09M in Q4 2021. 539 funds tracked by Wall St. Rank hold SGI as of Q2 2026.

William Blair & Company held 7,247 shares of Somnigroup International worth $568K as of Q2 2026.
William Blair & Company sold 3,722 Somnigroup International shares in Q2 2026, an estimated $273K.
Somnigroup International made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1177 holding.
William Blair & Company first reported a position in Somnigroup International in Q2 2021 and has held it in 6 quarters since.
William Blair & Company's Somnigroup International position peaked at $3.09M in Q4 2021.
539 funds tracked by Wall St. Rank held Somnigroup International as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.