State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Spok Holdings SPOK Stock Holding History

State of Wisconsin Investment Board’s Portfolio SPOK Stock Details SPOK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$221K Buy
20,300
+9,200
+83% +$117K ﹤0.01% 2323
2025
Q4 		$146K Buy
+11,100
New +$157K ﹤0.01% 2304

Other funds holding SPOK

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Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
HighTower Advisors
HighTower Advisors Chicago, Illinois $94.2B AUM 21.24% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

State of Wisconsin Investment Board's SPOK Position: Q1 2026 in Review

State of Wisconsin Investment Board increased its Spok Holdings (SPOK) stake by 83% in Q1 2026, buying an estimated $117K and bringing the position to 20,300 shares worth $221K. The position accounts for ﹤0.01% of the portfolio, ranked #2323.

State of Wisconsin Investment Board first reported a position in SPOK in Q4 2025 and has held it in 2 quarters since. 139 funds tracked by Wall St. Rank hold SPOK as of Q1 2026.

  • State of Wisconsin Investment Board held 20,300 shares of Spok Holdings worth $221K as of Q1 2026.
  • State of Wisconsin Investment Board bought 9,200 Spok Holdings shares in Q1 2026, an estimated $117K.
  • Spok Holdings made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #2323 holding.
  • State of Wisconsin Investment Board first reported a position in Spok Holdings in Q4 2025 and has held it in 2 quarters since.
  • 139 funds tracked by Wall St. Rank held Spok Holdings as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.