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 |
|---|---|---|---|---|---|
| Deprince Race & Zollo Inc | 1,513,522 | $15.5M | 0.41% | +71,230+4.9% | Added |
| Dimensional Fund Advisors LP | 1,328,598 | $13.6M | 0.00% | −105,528−7.4% | Reduced |
| Renaissance Technologies LLC | 1,233,722 | $12.6M | 0.02% | −283,049−18.7% | Reduced |
| Vanguard Group Inc | 838,923 | $8.57M | 0.00% | −138,600−14.2% | Reduced |
| Millennium Management LLC | 491,150 | $5.02M | 0.01% | +209,392+74.3% | Added |
| BlackRock Inc. | 419,065 | $4.28M | 0.00% | −1,661,564−79.9% | Reduced |
| Tocqueville Asset Management L.P. | 401,600 | $4.10M | 0.06% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 378,487 | $3.87M | 0.02% | +378,487 | New |
| Russell Investments Group, Ltd. | 326,893 | $3.34M | 0.01% | +46,219+16.5% | Added |
| Foundry Partners, LLC | 309,827 | $3.17M | 0.11% | +50,804+19.6% | Added |
| Morgan Stanley | 279,900 | $2.86M | 0.00% | +193,201+222.8% | Added |
| Bank of New York Mellon Corp | 257,341 | $2.63M | 0.00% | −88,273−25.5% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 227,078 | $2.32M | 0.01% | +53,800+31.0% | Added |
| Franklin Resources Inc | 215,800 | $2.21M | 0.00% | +203,122+1,602.2% | Added |
| Arrowstreet Capital, Limited Partnership | 211,675 | $2.16M | 0.00% | −1,504−0.7% | Reduced |
| Bridgeway Capital Management, LLC | 205,916 | $2.10M | 0.04% | +119,516+138.3% | Added |
| Two Sigma Advisers, LP | 193,987 | $1.98M | 0.01% | +143,300+282.7% | Added |
| Susquehanna International Group, LLP | 193,546 | $1.98M | 0.00% | +193,546 | New |
| Geode Capital Management, LLC | 183,209 | $1.87M | 0.00% | −1,586−0.9% | Reduced |
| Marshall Wace, LLP | 163,354 | $1.67M | 0.01% | +150,401+1,161.1% | Added |
| Kennedy Capital Management, Inc. | 150,424 | $1.54M | 0.03% | +150,424 | New |
| HighTower Advisors, LLC | 135,823 | $1.38M | 0.00% | +122,100+889.7% | Added |
| BCK Capital Management LP | 133,645 | $1.37M | 0.82% | +133,645 | New |
| Blair William & Co | 121,485 | $1.24M | 0.00% | −36,436−23.1% | Reduced |
| Prescott Group Capital Management, L.L.C. | 114,697 | $1.17M | 0.32% | +114,697 | New |
| Employees Retirement System of Texas | 110,000 | $1.12M | 0.01% | +110,000 | New |
| Goldman Sachs Group Inc | 100,612 | $1.03M | 0.00% | +18,770+22.9% | Added |
| Jacobs Levy Equity Management, Inc | 100,074 | $1.02M | 0.01% | +10,280+11.4% | Added |
| JPMorgan Chase & Co | 97,160 | $993.0K | 0.00% | −38,630−28.4% | Reduced |
| Citadel Advisors LLC | 87,537 | $895.0K | 0.00% | +2,424+2.8% | Added |
| Granite Point Capital Management, L.P. | 75,000 | $767.0K | 0.30% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 74,043 | $757.0K | 0.00% | +74,043 | New |
| Walleye Capital LLC | 70,880 | $724.0K | 0.02% | +70,880 | New |
| Northern Trust Corp | 67,722 | $691.0K | 0.00% | −17,108−20.2% | Reduced |
| D. E. Shaw & Co., Inc. | 65,254 | $667.0K | 0.00% | +31,484+93.2% | Added |
| HRT Financial LP | 52,923 | $540.0K | 0.00% | +1,407+2.7% | Added |
| State Street Corp | 51,512 | $526.0K | 0.00% | −281,834−84.5% | Reduced |
| LMR Partners LLP | 50,000 | $511.0K | 0.01% | +50,000 | New |
| Centiva Capital, LP | 50,000 | $511.0K | 0.04% | +50,000 | New |
| Royce & Associates LP | 44,181 | $452.0K | 0.00% | +44,181 | New |
| Prelude Capital Management, LLC | 95,454 | $431.0K | 0.02% | +80,146+523.6% | Added |
| Engineers Gate Manager LP | 41,440 | $424.0K | 0.02% | +13,183+46.7% | Added |
| 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 |
| Nuveen Asset Management, LLC | 38,963 | $398.0K | 0.00% | +38,963 | New |
| Barclays PLC | 34,983 | $357.0K | 0.00% | −10,752−23.5% | Reduced |
| Bank of America Corp | 33,655 | $344.0K | 0.00% | −4,567−11.9% | Reduced |
| Invesco Ltd. | 32,842 | $336.0K | 0.00% | −1,007,340−96.8% | Reduced |
| Winton Group Ltd | 26,611 | $272.0K | 0.02% | +2,702+11.3% | Added |
| Bailard, Inc. | 25,200 | $258.0K | 0.01% | +25,200 | New |
| Royal Bank of Canada | 22,600 | $231.0K | 0.00% | −33,456−59.7% | Reduced |
| Parametric Portfolio Associates LLC | 20,278 | $207.0K | 0.00% | −57,218−73.8% | Reduced |
| RBF Capital, LLC | 20,000 | $204.0K | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 19,259 | $197.0K | 0.00% | +19,259 | New |
| Walleye Trading LLC | 16,295 | $167.0K | 0.00% | +16,295 | New |
| HighVista Strategies LLC | 15,666 | $160.0K | 0.11% | +3,374+27.4% | Added |
| First Quadrant L P | 14,600 | $149.0K | 0.02% | −23,673−61.9% | Reduced |
| Probity Advisors, Inc. | 13,021 | $133.0K | 0.03% | +13,021 | New |
| Paloma Partners Management Co | 11,954 | $122.0K | 0.01% | +11,954 | New |
| Meristem Family Wealth, LLC | 11,000 | $112.0K | 0.01% | 00.0% | Unchanged |
| Personal Capital Advisors Corp | 10,443 | $107.0K | 0.00% | 00.0% | Unchanged |
| DLD Asset Management, LP | 10,000 | $102.0K | 0.01% | +10,000 | New |
| Wolverine Trading, LLC | 10,058 | $101.0K | 0.00% | +10,058 | New |
| Cove Street Capital, LLC | 8,800 | $90.0K | 0.01% | +8,800 | New |
| KBC Group NV | 8,030 | $82.0K | 0.00% | −2,331−22.5% | Reduced |
| 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 |
| Teachers Retirement System of the State of Kentucky | 4,700 | $48.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 2,856 | $29.0K | 0.00% | −6,942−70.9% | Reduced |
| Tower Research Capital LLC (TRC) | 2,007 | $20.0K | 0.00% | −5,954−74.8% | Reduced |
| Group One Trading, L.P. | 1,900 | $19.0K | 0.00% | +400+26.7% | Added |
| PEAK6 Investments LLC | 1,571 | $16.0K | 0.00% | −22,451−93.5% | Reduced |
| Nisa Investment Advisors, LLC | 1,100 | $11.0K | 0.00% | 00.0% | Unchanged |
| Professional Financial Advisors, LLC | 738 | $8.00K | 0.00% | +9+1.2% | Added |
| Glen Eagle Advisors, LLC | 500 | $5.11K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 518 | $5.00K | 0.00% | −168−24.5% | Reduced |
| FMR LLC | 340 | $4.00K | 0.00% | +69+25.5% | Added |
| Simplex Trading, LLC | 401 | $3.00K | 0.00% | 00.0% | Unchanged |
| 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 |
| BNP Paribas Arbitrage, SA | 12 | $123 | 0.00% | −5,672−99.8% | Reduced |
| 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 |
| 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 |