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, Q3 2021
Institutional positions in Spok Holdings, Inc as of Sep 30, 2021. 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
- 87
- −15 vs. Q2 2021
- Shares held
- 11.8M
- −1.73M (−12.8%) vs. Q2 2021
- Total value
- $119.8M
- −$10.2M (−7.8%) vs. Q2 2021
- New holders
- 23
- 24 more added
- Sold out
- 38
- 28 more reduced
1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Spok Holdings, Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citigroup Inc | 13 | $0 | 0.00% | −9,717−99.9% | Reduced |
| Eaton Vance Management | 3,035 | $0 | 0.00% | −1,335−30.5% | Reduced |
| The PNC Financial Services Group, Inc. | 20 | $0 | 0.00% | −1,379−98.6% | Reduced |
| Harbour Investments, Inc. | 19 | $0 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 12 | $123 | 0.00% | −5,672−99.8% | Reduced |
| Smithfield Trust Co | 100 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sageworth Trust Co | 70 | $1.00K | 0.00% | 00.0% | Unchanged |
| Carroll Financial Associates, Inc. | 138 | $1.00K | 0.00% | +138 | New |
| Advisor Group Holdings, Inc. | 100 | $1.00K | 0.00% | +100 | New |
| Simplex Trading, LLC | 401 | $3.00K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 340 | $4.00K | 0.00% | +69+25.5% | Added |
| Meeder Asset Management Inc | 518 | $5.00K | 0.00% | −168−24.5% | Reduced |
| Glen Eagle Advisors, LLC | 500 | $5.11K | 0.00% | 00.0% | Unchanged |
| Professional Financial Advisors, LLC | 738 | $8.00K | 0.00% | +9+1.2% | Added |
| Nisa Investment Advisors, LLC | 1,100 | $11.0K | 0.00% | 00.0% | Unchanged |
| PEAK6 Investments LLC | 1,571 | $16.0K | 0.00% | −22,451−93.5% | Reduced |
| Group One Trading, L.P. | 1,900 | $19.0K | 0.00% | +400+26.7% | Added |
| Tower Research Capital LLC (TRC) | 2,007 | $20.0K | 0.00% | −5,954−74.8% | Reduced |
| UBS Group AG | 2,856 | $29.0K | 0.00% | −6,942−70.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 4,700 | $48.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 6,068 | $62.0K | 0.00% | −15,681−72.1% | Reduced |
| Wells Fargo & Company | 6,084 | $62.0K | 0.00% | +4,147+214.1% | Added |
| KBC Group NV | 8,030 | $82.0K | 0.00% | −2,331−22.5% | Reduced |
| Cove Street Capital, LLC | 8,800 | $90.0K | 0.01% | +8,800 | New |
| Wolverine Trading, LLC | 10,058 | $101.0K | 0.00% | +10,058 | New |
| DLD Asset Management, LP | 10,000 | $102.0K | 0.01% | +10,000 | New |
| Personal Capital Advisors Corp | 10,443 | $107.0K | 0.00% | 00.0% | Unchanged |
| Meristem Family Wealth, LLC | 11,000 | $112.0K | 0.01% | 00.0% | Unchanged |
| Paloma Partners Management Co | 11,954 | $122.0K | 0.01% | +11,954 | New |
| Probity Advisors, Inc. | 13,021 | $133.0K | 0.03% | +13,021 | New |
| First Quadrant L P | 14,600 | $149.0K | 0.02% | −23,673−61.9% | Reduced |
| HighVista Strategies LLC | 15,666 | $160.0K | 0.11% | +3,374+27.4% | Added |
| Walleye Trading LLC | 16,295 | $167.0K | 0.00% | +16,295 | New |
| Two Sigma Investments, LP | 19,259 | $197.0K | 0.00% | +19,259 | New |
| RBF Capital, LLC | 20,000 | $204.0K | 0.01% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 20,278 | $207.0K | 0.00% | −57,218−73.8% | Reduced |
| Royal Bank of Canada | 22,600 | $231.0K | 0.00% | −33,456−59.7% | Reduced |
| Bailard, Inc. | 25,200 | $258.0K | 0.01% | +25,200 | New |
| Winton Group Ltd | 26,611 | $272.0K | 0.02% | +2,702+11.3% | Added |
| Invesco Ltd. | 32,842 | $336.0K | 0.00% | −1,007,340−96.8% | Reduced |
| Bank of America Corp | 33,655 | $344.0K | 0.00% | −4,567−11.9% | Reduced |
| Barclays PLC | 34,983 | $357.0K | 0.00% | −10,752−23.5% | Reduced |
| Nuveen Asset Management, LLC | 38,963 | $398.0K | 0.00% | +38,963 | New |
| Raymond James & Associates | 39,411 | $403.0K | 0.00% | −36,139−47.8% | Reduced |
| Trexquant Investment LP | 39,463 | $403.0K | 0.03% | +39,463 | New |
| Engineers Gate Manager LP | 41,440 | $424.0K | 0.02% | +13,183+46.7% | Added |
| Prelude Capital Management, LLC | 95,454 | $431.0K | 0.02% | +80,146+523.6% | Added |
| Royce & Associates LP | 44,181 | $452.0K | 0.00% | +44,181 | New |
| LMR Partners LLP | 50,000 | $511.0K | 0.01% | +50,000 | New |
| Centiva Capital, LP | 50,000 | $511.0K | 0.04% | +50,000 | New |
| State Street Corp | 51,512 | $526.0K | 0.00% | −281,834−84.5% | Reduced |
| HRT Financial LP | 52,923 | $540.0K | 0.00% | +1,407+2.7% | Added |
| D. E. Shaw & Co., Inc. | 65,254 | $667.0K | 0.00% | +31,484+93.2% | Added |
| Northern Trust Corp | 67,722 | $691.0K | 0.00% | −17,108−20.2% | Reduced |
| Walleye Capital LLC | 70,880 | $724.0K | 0.02% | +70,880 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 74,043 | $757.0K | 0.00% | +74,043 | New |
| Granite Point Capital Management, L.P. | 75,000 | $767.0K | 0.30% | 00.0% | Unchanged |
| Citadel Advisors LLC | 87,537 | $895.0K | 0.00% | +2,424+2.8% | Added |
| JPMorgan Chase & Co | 97,160 | $993.0K | 0.00% | −38,630−28.4% | Reduced |
| Jacobs Levy Equity Management, Inc | 100,074 | $1.02M | 0.01% | +10,280+11.4% | Added |
| Goldman Sachs Group Inc | 100,612 | $1.03M | 0.00% | +18,770+22.9% | Added |
| Employees Retirement System of Texas | 110,000 | $1.12M | 0.01% | +110,000 | New |
| Prescott Group Capital Management, L.L.C. | 114,697 | $1.17M | 0.32% | +114,697 | New |
| Blair William & Co | 121,485 | $1.24M | 0.00% | −36,436−23.1% | Reduced |
| BCK Capital Management LP | 133,645 | $1.37M | 0.82% | +133,645 | New |
| HighTower Advisors, LLC | 135,823 | $1.38M | 0.00% | +122,100+889.7% | Added |
| Kennedy Capital Management, Inc. | 150,424 | $1.54M | 0.03% | +150,424 | New |
| Marshall Wace, LLP | 163,354 | $1.67M | 0.01% | +150,401+1,161.1% | Added |
| Geode Capital Management, LLC | 183,209 | $1.87M | 0.00% | −1,586−0.9% | Reduced |
| Susquehanna International Group, LLP | 193,546 | $1.98M | 0.00% | +193,546 | New |
| Two Sigma Advisers, LP | 193,987 | $1.98M | 0.01% | +143,300+282.7% | Added |
| Bridgeway Capital Management, LLC | 205,916 | $2.10M | 0.04% | +119,516+138.3% | Added |
| Arrowstreet Capital, Limited Partnership | 211,675 | $2.16M | 0.00% | −1,504−0.7% | Reduced |
| Franklin Resources Inc | 215,800 | $2.21M | 0.00% | +203,122+1,602.2% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 227,078 | $2.32M | 0.01% | +53,800+31.0% | Added |
| Bank of New York Mellon Corp | 257,341 | $2.63M | 0.00% | −88,273−25.5% | Reduced |
| Morgan Stanley | 279,900 | $2.86M | 0.00% | +193,201+222.8% | Added |
| Foundry Partners, LLC | 309,827 | $3.17M | 0.11% | +50,804+19.6% | Added |
| Russell Investments Group, Ltd. | 326,893 | $3.34M | 0.01% | +46,219+16.5% | Added |
| Assenagon Asset Management S.A. | 378,487 | $3.87M | 0.02% | +378,487 | New |
| Tocqueville Asset Management L.P. | 401,600 | $4.10M | 0.06% | 00.0% | Unchanged |
| BlackRock Inc. | 419,065 | $4.28M | 0.00% | −1,661,564−79.9% | Reduced |
| Millennium Management LLC | 491,150 | $5.02M | 0.01% | +209,392+74.3% | Added |
| Vanguard Group Inc | 838,923 | $8.57M | 0.00% | −138,600−14.2% | Reduced |
| Renaissance Technologies LLC | 1,233,722 | $12.6M | 0.02% | −283,049−18.7% | Reduced |
| Dimensional Fund Advisors LP | 1,328,598 | $13.6M | 0.00% | −105,528−7.4% | Reduced |
| Deprince Race & Zollo Inc | 1,513,522 | $15.5M | 0.41% | +71,230+4.9% | Added |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −123,422−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −83,651−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −83,639−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −64,000−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −50,487−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −46,295−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −43,263−100.0% | Sold out |
| New York State Teachers Retirement System | 0 | $0 | 0.00% | −40,850−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −40,661−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −35,432−100.0% | Sold out |
| Tibra Equities Europe Ltd | 0 | $0 | 0.00% | −35,100−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −34,830−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −32,241−100.0% | Sold out |