William Blair Investment Management’s Seagate STX Stock Holding History

William Blair Investment Management’s Portfolio STX Stock Details STX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$184M	Buy	+190,847	New	+$146M	0.55%	47

Other funds holding STX

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

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

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

William Blair Investment Management's STX Position: Q2 2026 in Review

William Blair Investment Management opened a new position in Seagate (STX) in Q2 2026: 190,847 shares worth $184M. The stake represents 0.55% of the portfolio and ranks #47 among its holdings.

1,946 funds tracked by Wall St. Rank hold STX as of Q2 2026.

William Blair Investment Management held 190,847 shares of Seagate worth $184M as of Q2 2026.
Seagate was a new William Blair Investment Management position in Q2 2026.
Seagate made up 0.55% of William Blair Investment Management's portfolio in Q2 2026, its #47 holding.
1,946 funds tracked by Wall St. Rank held Seagate as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.