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Spok Holdings, Inc

SPOK
Exchange
Nasdaq
Industry
Radiotelephone Communications
SEC CIK
0001289945

In the last 90 days, Spok Holdings, Inc insiders filed 0 open-market purchases and 2 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $110.9M in total; no superinvestor holds it.

13F holders, Q4 2023

Institutional positions in Spok Holdings, Inc as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
107
+10 vs. Q3 2023
Shares held
10.2M
+207.9K (+2.1%) vs. Q3 2023
Total value
$158.2M
+$15.1M (+10.5%) vs. Q3 2023
New holders
26
37 more added
Sold out
16
34 more reduced

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SPOK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 107 institutions
Q1 2021: 102 institutionsQ2 2021: 103 institutionsQ3 2021: 87 institutionsQ4 2021: 71 institutionsQ1 2022: 62 institutionsQ2 2022: 62 institutionsQ3 2022: 60 institutionsQ4 2022: 78 institutionsQ1 2023: 85 institutionsQ2 2023: 87 institutionsQ3 2023: 97 institutionsQ4 2023: 107 institutionsQ1 2024: 111 institutionsQ2 2024: 114 institutionsQ3 2024: 109 institutionsQ4 2024: 116 institutionsQ1 2025: 125 institutionsQ2 2025: 130 institutionsQ3 2025: 143 institutionsQ4 2025: 134 institutionsQ1 2026: 139 institutionsQ2 2026: 132 institutions
Value heldQ4 2023: $158.2M
Q1 2021: $145.9MQ2 2021: $130.0MQ3 2021: $119.8MQ4 2021: $107.6MQ1 2022: $89.4MQ2 2022: $61.6MQ3 2022: $68.2MQ4 2022: $82.6MQ1 2023: $98.1MQ2 2023: $135.4MQ3 2023: $143.1MQ4 2023: $158.2MQ1 2024: $160.3MQ2 2024: $150.8MQ3 2024: $152.0MQ4 2024: $162.1MQ1 2025: $173.5MQ2 2025: $194.4MQ3 2025: $197.7MQ4 2025: $146.0MQ1 2026: $114.4MQ2 2026: $110.9M
Institutions holding SPOK and their total value by quarter
QuarterHoldersValue
Q2 2026132$110.9M
Q1 2026139$114.4M
Q4 2025134$146.0M
Q3 2025143$197.7M
Q2 2025130$194.4M
Q1 2025125$173.5M
Q4 2024116$162.1M
Q3 2024109$152.0M
Q2 2024114$150.8M
Q1 2024111$160.3M
Q4 2023107$158.2M
Q3 202397$143.1M
Q2 202387$135.4M
Q1 202385$98.1M
Q4 202278$82.6M
Q3 202260$68.2M
Q2 202262$61.6M
Q1 202262$89.4M
Q4 202171$107.6M
Q3 202187$119.8M
Q2 2021103$130.0M
Q1 2021102$145.9M

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Spok Holdings, Inc; share changes are against Q3 2023.

Institutions holding SPOK in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Signaturefd, LLC72$1.11K0.00%+72New
Capital Advisors, Ltd. LLC65$1.00K0.00%00.0%Unchanged
Private Wealth Management Group, LLC34$5270.00%+34New
Quadrant Capital Group LLC21$3260.00%−22−51.2%Reduced
Versant Capital Management, Inc17$2630.00%00.0%Unchanged
Nisa Investment Advisors, LLC15$2320.00%−5,000−99.7%Reduced
The PNC Financial Services Group, Inc.12$1860.00%00.0%Unchanged
EVR Research LP0$00.00%−150,000−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−110,414−100.0%Sold out
Penn Mutual Asset Management, LLC0$00.00%−110,025−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−26,780−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−23,147−100.0%Sold out
Parallax Volatility Advisers, L.P.0$00.00%−17,659−100.0%Sold out
Natixis Advisors, L.P.0$00.00%−15,800−100.0%Sold out
XTX Topco Ltd0$00.00%−14,719−100.0%Sold out
Bayesian Capital Management, LP0$00.00%−13,617−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−12,217−100.0%Sold out
Corton Capital Inc.0$00.00%−10,444−100.0%Sold out
Caption Management, LLC0$00.00%−6,766−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−1,500−100.0%Sold out
South State Corp.0$00.00%−730−100.0%Sold out
IFP Advisors, Inc0$00.00%−600−100.0%Sold out
Venturi Wealth Management, LLC0$00.00%−88−100.0%Sold out