William John Sempolinski
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William John Sempolinski’s SpaceX SPCX Stock Holding History

William John Sempolinski’s Portfolio SPCX Stock Details SPCX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$1.64M Buy
10,902
+6,832
+168% +$946K 0.64% 34
2026
Q2 		$695K Buy
+4,070
New +$691K 0.28% 61

Other funds holding SPCX

Alphabet Inc
Alphabet Inc Mountain View, California $88.3B AUM 46.07% 1-Year Est. Return
VY Capital Management Company
VY Capital Management Company Dubai, United Arab Emirates $36.6B AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Gigafund Management Company
Gigafund Management Company Austin, Texas $19.1B AUM 50.68% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
SC US (TTGP)
SC US (TTGP) Menlo Park, California $25.6B AUM 36.49% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Thrive Capital Management (New York)
Thrive Capital Management (New York) New York $7.68B AUM 39.94% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $106B AUM 2.29% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

William John Sempolinski's SPCX Position: Q3 2026 in Review

William John Sempolinski increased its SpaceX (SPCX) stake by 168% in Q3 2026, buying an estimated $946K and bringing the position to 10,902 shares worth $1.64M. The position accounts for 0.64% of the portfolio, ranked #34.

William John Sempolinski first reported a position in SPCX in Q2 2026 and has held it in 2 quarters since. 2,330 funds tracked by Wall St. Rank hold SPCX as of Q3 2026.

  • William John Sempolinski held 10,902 shares of SpaceX worth $1.64M as of Q3 2026.
  • William John Sempolinski bought 6,832 SpaceX shares in Q3 2026, an estimated $946K.
  • SpaceX made up 0.64% of William John Sempolinski's portfolio in Q3 2026, its #34 holding.
  • William John Sempolinski first reported a position in SpaceX in Q2 2026 and has held it in 2 quarters since.
  • 2,330 funds tracked by Wall St. Rank held SpaceX as of Q3 2026.

Based on William John Sempolinski's 13F filing for Q3 2026, filed 20 Oct 2026.