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, Q2 2025
Institutional positions in Spok Holdings, Inc as of Jun 30, 2025. 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
- 130
- +6 vs. Q1 2025
- Shares held
- 11.0M
- +797.1K (+7.8%) vs. Q1 2025
- Total value
- $194.4M
- +$26.7M (+16.0%) vs. Q1 2025
- New holders
- 24
- 53 more added
- Sold out
- 18
- 34 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 132 | $110.9M |
| Q1 2026 | 139 | $114.4M |
| Q4 2025 | 134 | $146.0M |
| Q3 2025 | 143 | $197.7M |
| Q2 2025 | 130 | $194.4M |
| Q1 2025 | 125 | $173.5M |
| Q4 2024 | 116 | $162.1M |
| Q3 2024 | 109 | $152.0M |
| Q2 2024 | 114 | $150.8M |
| Q1 2024 | 111 | $160.3M |
| Q4 2023 | 107 | $158.2M |
| Q3 2023 | 97 | $143.1M |
| Q2 2023 | 87 | $135.4M |
| Q1 2023 | 85 | $98.1M |
| Q4 2022 | 78 | $82.6M |
| Q3 2022 | 60 | $68.2M |
| Q2 2022 | 62 | $61.6M |
| Q1 2022 | 62 | $89.4M |
| Q4 2021 | 71 | $107.6M |
| Q3 2021 | 87 | $119.8M |
| Q2 2021 | 103 | $130.0M |
| Q1 2021 | 102 | $145.9M |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Spok Holdings, Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM Advisors, LLC | 51,504 | $910.6K | 0.10% | +2,904+6.0% | Added |
| Hennion & Walsh Asset Management, Inc. | 51,678 | $913.7K | 0.04% | −2,383−4.4% | Reduced |
| Charles Schwab Investment Management Inc | 60,930 | $1.08M | 0.00% | +5,616+10.2% | Added |
| Los Angeles Capital Management LLC | 63,810 | $1.13M | 0.00% | +35,460+125.1% | Added |
| Jacobs Levy Equity Management, Inc | 64,667 | $1.14M | 0.00% | −28,909−30.9% | Reduced |
| Citadel Advisors LLC | 65,417 | $1.16M | 0.00% | −88,903−57.6% | Reduced |
| Lazard Asset Management LLC | 66,261 | $1.17M | 0.00% | +65,484+8,427.8% | Added |
| Nuveen, LLC | 72,818 | $1.29M | 0.00% | −8,527−10.5% | Reduced |
| Two Sigma Advisers, LP | 78,500 | $1.39M | 0.00% | +12,200+18.4% | Added |
| Two Sigma Investments, LP | 108,769 | $1.92M | 0.00% | +44,939+70.4% | Added |
| Trexquant Investment LP | 111,481 | $1.97M | 0.02% | −31,865−22.2% | Reduced |
| North Star Investment Management Corp. | 122,000 | $2.16M | 0.15% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 145,818 | $2.58M | 0.00% | +20,730+16.6% | Added |
| Prelude Capital Management, LLC | 148,185 | $2.62M | 0.26% | −4,700−3.1% | Reduced |
| Morgan Stanley | 152,423 | $2.69M | 0.00% | −16,093−9.5% | Reduced |
| Uniplan Investment Counsel, Inc. | 188,228 | $3.33M | 0.34% | −17,104−8.3% | Reduced |
| Bank of New York Mellon Corp | 195,507 | $3.46M | 0.00% | +5,389+2.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 198,978 | $3.52M | 0.01% | +58,416+41.6% | Added |
| JPMorgan Chase & Co | 224,053 | $3.96M | 0.00% | +24,991+12.6% | Added |
| Northern Trust Corp | 243,003 | $4.30M | 0.00% | +26,221+12.1% | Added |
| CSM Advisors, LLC | 349,185 | $6.17M | 0.18% | +349,185 | New |
| Acadian Asset Management LLC | 390,009 | $6.89M | 0.01% | +13,077+3.5% | Added |
| State Street Corp | 445,177 | $7.87M | 0.00% | +7,897+1.8% | Added |
| HighTower Advisors, LLC | 452,809 | $8.01M | 0.01% | −69,842−13.4% | Reduced |
| Geode Capital Management, LLC | 518,327 | $9.17M | 0.00% | +29,957+6.1% | Added |
| Goldman Sachs Group Inc | 529,886 | $9.37M | 0.00% | +8,315+1.6% | Added |
| Dimensional Fund Advisors LP | 710,890 | $12.6M | 0.00% | +11,327+1.6% | Added |
| Renaissance Technologies LLC | 1,056,650 | $18.7M | 0.02% | +37,200+3.6% | Added |
| Vanguard Group Inc | 1,148,536 | $20.3M | 0.00% | +128,225+12.6% | Added |
| BlackRock, Inc. | 1,722,874 | $30.5M | 0.00% | +180,478+11.7% | Added |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −103,107−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −28,394−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −25,677−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −16,144−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −13,464−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −11,442−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −10,322−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −10,297−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −8,961−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −6,429−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −1,325−100.0% | Sold out |
| Darwin Advisors, LLC | 0 | $0 | 0.00% | −792−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −522−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −470−100.0% | Sold out |
| Gen-Wealth Partners Inc | 0 | $0 | 0.00% | −270−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −204−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Foundry Partners, LLC | – | – | – | – | Not filed |