SPOK HLDGS INC SPOK
COM · Common Stock · CUSIP 84863T106
- SectorCommunication
- IndustryRadiotelephone Communications
- HeadquartersPlano, TX
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($20.0k this quarter). Holder counts are more reliable. Shares outstanding: 20.3m as of 2024-07-19, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $14.81. Options: 5 managers hold calls ($639.0k notional), 4 hold puts ($104.2k).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 60 |
| Q4 2022 | 79 |
| Q1 2023 | 86 |
| Q2 2023 | 88 |
| Q3 2023 | 98 |
| Q4 2023 | 108 |
| Q1 2024 | 112 |
| Q2 2024 | 116 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 45 | 24 |
| Q1 2023 | 50 | 32 |
| Q2 2023 | 48 | 52 |
| Q3 2023 | 54 | 46 |
| Q4 2023 | 61 | 50 |
| Q1 2024 | 54 | 55 |
| Q2 2024 | 66 | 51 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $573.1k | $6.1m | 10.66 |
| Q4 2023 | $976.5k | $872.9k | 0.89 |
| Q1 2024 | $1.0m | $830.5k | 0.80 |
| Q2 2024 | $639.0k | $104.2k | 0.16 |
Biggest buyers
| ACADIAN ASSET MANAGEMENT LLC | Added | +119.1k |
| HighTower Advisors, LLC | Added | +97.6k |
| North Star Investment Management Corp. | New | +58.0k |
| Uniplan Investment Counsel, Inc. | Added | +53.7k |
| Keebeck Wealth Management | New | +45.0k |
| GSA CAPITAL PARTNERS LLP | Added | +42.6k |
| SEI INVESTMENTS CO | New | +39.1k |
| PANAGORA ASSET MANAGEMENT INC | New | +35.3k |
| Magnetar Financial LLC | New | +34.6k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +33.3k |
Biggest sellers
| MORGAN STANLEY | Reduced | -349.9k |
| Hillsdale Investment Management Inc. | Sold out | -235.7k |
| Nuveen Asset Management, LLC | Reduced | -212.1k |
| CITADEL ADVISORS LLC | Sold out | -80.1k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Sold out | -54.5k |
| SIERRA SUMMIT ADVISORS LLC | Sold out | -30.3k |
| TWO SIGMA ADVISERS, LP | Reduced | -29.4k |
| PRUDENTIAL FINANCIAL INC | Reduced | -23.2k |
| WINTON GROUP Ltd | Sold out | -23.0k |
| Janney Montgomery Scott LLC | Sold out | -22.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $373.2k25.2k shares |
| CITADEL ADVISORS LLC | Reduced | $140.7k9.5k shares |
| GROUP ONE TRADING LLC | Added | $68.1k4.6k shares |
| SIMPLEX TRADING, LLC | Added | $57.0k3.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SIMPLEX TRADING, LLC | Reduced | $42.0k2.9k shares |
| CITADEL ADVISORS LLC | Reduced | $34.1k2.3k shares |
| GROUP ONE TRADING LLC | Reduced | $28.1k1.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| RENAISSANCE TECHNOLOGIES LLC 13G · institution new · filed 2025-08-13 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 6 | $3.9m | 0 | — | — |
| Q4 2022 | 3 | $557.1k | 0 | — | — |
| Q1 2023 | 3 | $418.8k | 0 | — | — |
| Q2 2023 | 1 | $5.0k | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 1 | $159.6k | 5 | $2.9m | — |
| Q1 2024 | 0 | — | 4 | $3.8m | — |
| Q2 2024 | 0 | — | 1 | $90.4k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-10 | Byrne Barbara Peterson Director | Sold | $90.4k6.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 1.4m $21.1m | Added +9.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.0m $15.5m | Added +19.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 1.0m $15.0m | Added +21.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 708.0k $10.5m | Reduced -6.6k |
| HighTower Advisors, LLC 0.01% of their portfolio | 646.2k $9.6m | Added +97.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 484.5k $7.2m | Added +33.3k |
| Foundry Partners, LLC 0.34% of their portfolio | 433.1k $6.4m | Reduced -3.8k |
| STATE STREET CORP 0.00% of their portfolio | 403.4k $6.0m | Reduced -2.7k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 321.2k $4.8m | Added +119.1k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 312.2k $4.6m | Reduced -23.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 232.2k $3.4m | Added +2.3k |
| MORGAN STANLEY 0.00% of their portfolio | 212.1k $3.1m | Reduced -349.9k |
| Uniplan Investment Counsel, Inc. 0.28% of their portfolio | 209.8k $3.1m | Added +53.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 196.4k $2.9m | Reduced -7.1k |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.01% of their portfolio | 171.5k $2.5m | Reduced -8.3k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.18% of their portfolio | 147.9k $2.2m | Unchanged |
| GSA CAPITAL PARTNERS LLP 0.15% of their portfolio | 146.8k $2.2m | Added +42.6k |
| Truvestments Capital LLC 0.79% of their portfolio | 133.0k $2.0m | Added +15.9k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 128.3k $1.9m | Reduced -212.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 106.0k $1.6m | Added +28.5k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 102.3k $1.5m | Reduced -29.4k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 84.0k $1.2m | Reduced -4.8k |
| Trexquant Investment LP 0.02% of their portfolio | 77.3k $1.1m | Added +31.8k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 62.1k $919.0k | Added +6.0k |
| North Star Investment Management Corp. 0.06% of their portfolio | 58.0k $859.0k | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 56.9k $842.5k | Added +263 |
| Campbell & CO Investment Adviser LLC 0.07% of their portfolio | 53.2k $788.1k | Reduced -8.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 53.0k $784.3k | Added +3.8k |
| Invesco Ltd. 0.00% of their portfolio | 52.2k $773.1k | Reduced -1.7k |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 50.6k $748.9k | Added +2.6k |
| GUGGENHEIM CAPITAL LLC 0.00% of their portfolio | 46.6k $690.3k | Added +26.2k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 46.4k $686.6k | Added +21.2k |
| Keebeck Wealth Management 0.10% of their portfolio | 45.0k $666.5k | New |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 44.4k $657.6k | Reduced -4.5k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 39.1k $579.3k | New |
| Hennion & Walsh Asset Management, Inc. 0.03% of their portfolio | 38.6k $572.0k | Added +3.9k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 35.3k $523.3k | New |
| Magnetar Financial LLC 0.01% of their portfolio | 34.6k $512.5k | New |
| Y-Intercept (Hong Kong) Ltd 0.03% of their portfolio | 33.5k $496.3k | Added +12.6k |
| STRS OHIO 0.00% of their portfolio | 32.2k $476.9k | Added +2.8k |
| Koss-Olinger Consulting, LLC 0.04% of their portfolio | 29.4k $436.0k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 28.2k $417.7k | Added +3.4k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 26.7k $396.0k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 26.6k $393.0k | Added +6.4k |
| UBS Group AG 0.00% of their portfolio | 24.3k $359.8k | Reduced -12.0k |
| Cambria Investment Management, L.P. 0.02% of their portfolio | 23.6k $349.3k | Added +6.9k |
| Sanctuary Advisors, LLC 0.00% of their portfolio | 23.5k $372.1k | First filing |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 22.4k $331.5k | Added +2.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 20.7k $306.7k | Added +2.8k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 20.3k $301.0k | Added +4.5k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 19.6k $290.0k | Added +8.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 17.6k $259.9k | Added +988 |
| BAILARD, INC. 0.01% of their portfolio | 17.3k $256.5k | Added +2.6k |
| Financial Advocates Investment Management 0.02% of their portfolio | 17.1k $252.7k | Reduced -129 |
| Nebula Research & Development LLC 0.04% of their portfolio | 17.0k $252.1k | New |
| Triumph Capital Management 0.10% of their portfolio | 17.0k $251.5k | New |
| MARTINGALE ASSET MANAGEMENT L P 0.01% of their portfolio | 16.9k $249.8k | Added +400 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 16.8k $248.7k | Added +2.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 16.4k $242.9k | Added +1.7k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.04% of their portfolio | 16.2k $239.6k | New |
| JOHNSON INVESTMENT COUNSEL INC 0.00% of their portfolio | 16.1k $238.0k | Unchanged |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 15.1k $223.7k | New |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 13.6k $201.0k | New |
| Redhawk Wealth Advisors, Inc. 0.03% of their portfolio | 13.2k $195.8k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 13.2k $195.5k | New |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 12.7k $188.0k | Reduced -4.7k |
| CITIGROUP INC 0.00% of their portfolio | 12.4k $183.7k | Added +1.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 11.6k $172.4k | Added +959 |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.00% of their portfolio | 10.9k $161.1k | Unchanged |
| VIRTUS ADVISERS, LLC 0.08% of their portfolio | 10.8k $160.1k | Reduced -1.4k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 10.4k $153.5k | Reduced -7.9k |
| FMR LLC 0.00% of their portfolio | 10.3k $153.3k | Added +881 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 10.3k $153.0k | Added +970 |
| Centiva Capital, LP 0.01% of their portfolio | 10.3k $152.0k | Reduced -1.1k |
| Corebridge Financial, Inc. 0.00% of their portfolio | 9.8k $145.8k | First filing |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 9.8k $144.6k | First filing |
| Gladius Capital Management LP 0.11% of their portfolio | 7.5k $111.6k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 7.5k $110.3k | Added +7 |
| BARCLAYS PLC 0.00% of their portfolio | 6.4k $95.4k | Reduced -6.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 5.2k $77.7k | Reduced -4.2k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.7k $56.8k | Added +3.0k |
| Legal & General Group Plc 0.00% of their portfolio | 3.5k $52.1k | Added +2.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 3.2k $47.8k | Reduced -5.3k |
| State of Wyoming 0.01% of their portfolio | 2.8k $41.6k | Added +188 |
| EntryPoint Capital, LLC 0.02% of their portfolio | 2.7k $39.3k | New |
| Covestor Ltd 0.02% of their portfolio | 2.1k $31.0k | Reduced -148 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.5k $21.7k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 1.3k $19.6k | Reduced -462 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 1.3k $19.0k | Reduced -6.1k |
| McIlrath & Eck, LLC 0.00% of their portfolio | 1.0k $15.3k | Unchanged |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 865 $12.8k | Reduced -1.1k |
| AMALGAMATED BANK 0.00% of their portfolio | 600 $9.0k | Unchanged |
| Bank of New Hampshire 0.00% of their portfolio | 570 $8.4k | Unchanged |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 524 $7.8k | Reduced -85 |
| CWM, LLC 0.00% of their portfolio | 390 $6.0k | Added +84 |
| MACROVIEW INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 346 $5.1k | Added +14 |
| Gen-Wealth Partners Inc 0.00% of their portfolio | 270 $4.0k | Unchanged |
| Parallel Advisors, LLC 0.00% of their portfolio | 267 $4.0k | Reduced -147 |
| SIGNATUREFD, LLC 0.00% of their portfolio | 198 $2.9k | Reduced -355 |
| WealthCollab, LLC 0.00% of their portfolio | 185 $3.0k | Unchanged |