William John Sempolinski
IBM icon

William John Sempolinski’s IBM IBM Stock Holding History

William John Sempolinski’s Portfolio IBM Stock Details IBM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$935K Sell
4,250
-600
-12% -$142K 0.36% 48
2026
Q2 		$1.36M Sell
4,850
-2,980
-38% -$751K 0.55% 41
2026
Q1 		$1.9M Sell
7,830
-1,800
-19% -$487K 0.95% 23
2025
Q4 		$2.85M Buy
+9,630
New +$2.88M 1.4% 16

Other funds holding IBM

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

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

William John Sempolinski reduced its IBM (IBM) stake by 12% in Q3 2026, selling an estimated $142K and leaving 4,250 shares worth $935K. The position accounts for 0.36% of the portfolio, ranked #48.

William John Sempolinski first reported a position in IBM in Q4 2025 and has held it in 4 quarters since. The position peaked at $2.85M in Q4 2025. 3,037 funds tracked by Wall St. Rank hold IBM as of Q3 2026.

  • William John Sempolinski held 4,250 shares of IBM worth $935K as of Q3 2026.
  • William John Sempolinski sold 600 IBM shares in Q3 2026, an estimated $142K.
  • IBM made up 0.36% of William John Sempolinski's portfolio in Q3 2026, its #48 holding.
  • William John Sempolinski first reported a position in IBM in Q4 2025 and has held it in 4 quarters since.
  • William John Sempolinski's IBM position peaked at $2.85M in Q4 2025.
  • 3,037 funds tracked by Wall St. Rank held IBM as of Q3 2026.

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