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Who owns Spok Holdings (SPOK) stock

128 funds reported Spok Holdings (SPOK) shares in their latest 13F filings, worth $132M in all. The largest holder is BlackRock ($17.6M). Last quarter 70 funds added to their stakes and 56 cut them.

Largest holders of SPOK (13F)Largest holders of SPOK (13F)BlackRock$17.6MVanguard Group$16.2MRenaissance Technologies LLC$11.8MVanguard Capital Management LLC$8.9MDimensional Fund Advisors LP$7.3MGeode Capital Management, LLC$6.1MFoundry Partners, LLC$5.9MState Street$4.8MHighTower Advisors, LLC$3.5MQube Research & Technologies$2.9M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock1,719,219$17.6Mincrease2026-06-30
Vanguard Group1,229,078$16.2Mincrease2025-12-31
Renaissance Technologies LLC1,148,579$11.8Mdecrease2026-06-30
Vanguard Capital Management LLC872,359$8.9Mincrease2026-06-30
Dimensional Fund Advisors LP717,616$7.3Mincrease2026-06-30
Geode Capital Management, LLC595,842$6.1Mincrease2026-06-30
Foundry Partners, LLC359,925$5.9Mdecrease2025-03-31
State Street471,584$4.8Mincrease2026-06-30
HighTower Advisors, LLC339,892$3.5Mdecrease2026-06-30
Qube Research & Technologies287,617$2.9Mincrease2026-06-30
Goldman Sachs Group281,980$2.9Mincrease2026-06-30
Vanguard Portfolio Management LLC273,278$2.8Mincrease2026-06-30
Bank of New York Mellon234,112$2.4Mincrease2026-06-30
Northern Trust222,895$2.3Mincrease2026-06-30
Uniplan Investment Counsel215,764$2.2Mincrease2026-06-30

Spok Holdings' latest quarter

Spok Holdings, Q3 2026: revenue $33.0M (-3% year over year), operating margin 17.1%, net earnings $9.7M, operating cash flow $13.0M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most SPOK stock?

By the latest 13F filings: BlackRock ($17.6M); Vanguard Group ($16.2M); Renaissance Technologies LLC ($11.8M); Vanguard Capital Management LLC ($8.9M); Dimensional Fund Advisors LP ($7.3M).

What is the short interest in SPOK?

655,518 shares were sold short at the 2026-10-15 settlement, -5.2% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.