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, Q1 2025
Institutional positions in Spok Holdings, Inc as of Mar 31, 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
- 125
- +10 vs. Q4 2024
- Shares held
- 10.6M
- +535.8K (+5.3%) vs. Q4 2024
- Total value
- $173.5M
- +$12.7M (+7.9%) vs. Q4 2024
- New holders
- 23
- 41 more added
- Sold out
- 13
- 39 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Spok Holdings, Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nuveen, LLC | 81,345 | $1.34M | 0.00% | +81,345 | New |
| Prudential Financial Inc | 84,060 | $1.38M | 0.00% | −29,980−26.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 93,576 | $1.54M | 0.01% | +15,484+19.8% | Added |
| Allspring Global Investments Holdings, LLC | 103,107 | $1.70M | 0.00% | −7,890−7.1% | Reduced |
| North Star Investment Management Corp. | 122,000 | $2.01M | 0.15% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 125,088 | $2.06M | 0.00% | +53,208+74.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 140,562 | $2.31M | 0.01% | +35,321+33.6% | Added |
| Trexquant Investment LP | 143,346 | $2.36M | 0.03% | +36,879+34.6% | Added |
| Prelude Capital Management, LLC | 152,885 | $2.51M | 0.25% | +3,800+2.5% | Added |
| Citadel Advisors LLC | 154,320 | $2.54M | 0.00% | +123,508+400.8% | Added |
| Morgan Stanley | 168,516 | $2.77M | 0.00% | +10,116+6.4% | Added |
| Bank of New York Mellon Corp | 190,118 | $3.13M | 0.00% | −9,871−4.9% | Reduced |
| JPMorgan Chase & Co | 199,062 | $3.27M | 0.00% | −14,513−6.8% | Reduced |
| Uniplan Investment Counsel, Inc. | 205,332 | $3.38M | 0.33% | +1,745+0.9% | Added |
| Northern Trust Corp | 216,782 | $3.56M | 0.00% | +9,714+4.7% | Added |
| Foundry Partners, LLC | 359,925 | $5.92M | 0.31% | −2,115−0.6% | Reduced |
| Acadian Asset Management LLC | 376,932 | $6.20M | 0.02% | +7,301+2.0% | Added |
| State Street Corp | 437,280 | $7.19M | 0.00% | −1,314−0.3% | Reduced |
| Geode Capital Management, LLC | 488,370 | $8.03M | 0.00% | −26,057−5.1% | Reduced |
| Goldman Sachs Group Inc | 521,571 | $8.57M | 0.00% | +130,478+33.4% | Added |
| HighTower Advisors, LLC | 522,651 | $8.59M | 0.01% | −144,062−21.6% | Reduced |
| Dimensional Fund Advisors LP | 699,563 | $11.5M | 0.00% | −8,285−1.2% | Reduced |
| Renaissance Technologies LLC | 1,019,450 | $16.8M | 0.03% | +43,800+4.5% | Added |
| Vanguard Group Inc | 1,020,311 | $16.8M | 0.00% | −27,850−2.7% | Reduced |
| BlackRock, Inc. | 1,542,396 | $25.4M | 0.00% | +160,277+11.6% | Added |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −40,329−100.0% | Sold out |
| Koss-Olinger Consulting, LLC | 0 | $0 | 0.00% | −28,033−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −27,269−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −21,378−100.0% | Sold out |
| Cambria Investment Management, L.P. | 0 | $0 | 0.00% | −18,161−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −13,100−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −11,643−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −498−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −230−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Fedenia Advisers LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Creekmur Asset Management LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |