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.
Q3 2025 vs. Q2 2025
How the institutions holding Spok Holdings, Inc changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 130 | 143 | +13 |
| Shares | 11.0M | 11.5M | +466.2K (+4.2%) |
| Value | $194.4M | $197.7M | +$3.32M (+1.7%) |
New holders (25)
Institutions that held Spok Holdings, Inc at the end of Q3 2025 but not at the end of Q2 2025.
Sold out (12)
Institutions that held Spok Holdings, Inc at the end of Q2 2025 and filed for Q3 2025 without it.
| Institution | Shares, Q2 2025 | Value, Q2 2025 |
|---|---|---|
| Prelude Capital Management, LLC | 148,185 | $2.62M |
| Susquehanna International Group, LLP | 27,103 | $479.2K |
| Segall Bryant & Hamill, LLC | 25,806 | $456.3K |
| UBS Asset Management Americas Inc | 22,229 | $393.0K |
| Magnetar Financial LLC | 18,480 | $326.7K |
| Financial Advocates Investment Management | 15,867 | $280.5K |
| Winton Group Ltd | 14,213 | $251.3K |
| Intech Investment Management LLC | 12,516 | $221.3K |
| Caption Management, LLC | 2,532 | $44.8K |
| Meeder Asset Management Inc | 595 | $10.5K |
| Skopos Labs, Inc. | 74 | $1.31K |
| Comerica Bank | 2 | $35 |