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.
Q4 2021 vs. Q3 2021
How the institutions holding Spok Holdings, Inc changed between Q3 2021 and Q4 2021.
All holders in Q4 2021All holders in Q3 2021
| Measure | Q3 2021 | Q4 2021 | Change |
|---|---|---|---|
| Holders | 87 | 71 | −16 |
| Shares | 11.8M | 11.6M | −195.6K (−1.7%) |
| Value | $119.8M | $107.6M | −$12.2M (−10.2%) |
New holders (8)
Institutions that held Spok Holdings, Inc at the end of Q4 2021 but not at the end of Q3 2021.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Western Standard LLC | 134,392 | $1.25M | 0.74% |
| Verition Fund Management LLC | 46,057 | $430.0K | 0.01% |
| Corton Capital Inc. | 41,784 | $390.0K | 0.17% |
| Maven Securities LTD | 27,530 | $257.0K | 0.03% |
| Vazirani Asset Management LLC | 23,670 | $221.0K | 0.25% |
| Delphia (USA) Inc. | 16,195 | $151.0K | 0.16% |
| Levin Capital Strategies, L.P. | 10,000 | $93.0K | 0.01% |
| Sageworth Trust Co of South Dakota | 47 | $0 | 0.00% |
Sold out (24)
Institutions that held Spok Holdings, Inc at the end of Q3 2021 and filed for Q4 2021 without it.
| Institution | Shares, Q3 2021 | Value, Q3 2021 |
|---|---|---|
| Assenagon Asset Management S.A. | 378,487 | $3.87M |
| Arrowstreet Capital, Limited Partnership | 211,675 | $2.16M |
| HRT Financial LP | 52,923 | $540.0K |
| LMR Partners LLP | 50,000 | $511.0K |
| Raymond James & Associates | 39,411 | $403.0K |
| Trexquant Investment LP | 39,463 | $403.0K |
| Winton Group Ltd | 26,611 | $272.0K |
| Bailard, Inc. | 25,200 | $258.0K |
| Two Sigma Investments, LP | 19,259 | $197.0K |
| Walleye Trading LLC | 16,295 | $167.0K |
| HighVista Strategies LLC | 15,666 | $160.0K |
| Probity Advisors, Inc. | 13,021 | $133.0K |
| Paloma Partners Management Co | 11,954 | $122.0K |
| Wolverine Trading, LLC | 10,058 | $101.0K |
| Cove Street Capital, LLC | 8,800 | $90.0K |
| Great West Life Assurance Co | 6,068 | $62.0K |
| PEAK6 Investments LLC | 1,571 | $16.0K |
| Nisa Investment Advisors, LLC | 1,100 | $11.0K |
| Glen Eagle Advisors, LLC | 500 | $5.11K |
| Meeder Asset Management Inc | 518 | $5.00K |
| Smithfield Trust Co | 100 | $1.00K |
| Carroll Financial Associates, Inc. | 138 | $1.00K |
| BNP Paribas Arbitrage, SA | 12 | $123 |
| Harbour Investments, Inc. | 19 | $0 |