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William John Sempolinski’s Seagate STX Stock Holding History

William John Sempolinski’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 		$651K Buy
+675
New +$515K 0.26% 65

Other funds holding STX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

William John Sempolinski's STX Position: Q2 2026 in Review

William John Sempolinski opened a new position in Seagate (STX) in Q2 2026: 675 shares worth $651K. The stake represents 0.26% of the portfolio and ranks #65 among its holdings.

1,856 funds tracked by Wall St. Rank hold STX as of Q2 2026.

  • William John Sempolinski held 675 shares of Seagate worth $651K as of Q2 2026.
  • Seagate was a new William John Sempolinski position in Q2 2026.
  • Seagate made up 0.26% of William John Sempolinski's portfolio in Q2 2026, its #65 holding.
  • 1,856 funds tracked by Wall St. Rank held Seagate as of Q2 2026.

Based on William John Sempolinski's 13F filing for Q2 2026, filed 14 Aug 2026.