Institutional Ownership
Spok Hldgs Inc
CUSIP 84863T106COMSPOKQ1 2026
13D / 13G Filings
27
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
15.7%
Max % of class reported
Institutional Holders
134
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
27 filings · latest Aug 13, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Aug 13, 2025 | Renaissance Technologies LLC | 13G | 5.1% | 1.06M | SEC |
| 2 | Jul 29, 2025 | The Vanguard Group | 13G | 5.6% | 1.15M | SEC |
| 3 | Apr 30, 2025 | The Vanguard Group | 13G/A | 5.0% | 1.02M | SEC |
| 4 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 5.2% | 1.05M | SEC |
| 5 | Nov 4, 2024 | Vanguard Group Inc | 13G/A | 5.2% | 1.05M | SEC |
| 6 | Feb 13, 2024 | Renaissance Technologies LLC | 13G/A | 4.9% | 974.2K | SEC |
| 7 | Feb 9, 2024 | Dimensional Fund Advisors LP | 13G/A | 3.7% | 737.0K | SEC |
| 8 | Jan 26, 2024 | Blackrock Inc. | 13G | 7.1% | 1.41M | SEC |
| 9 | Feb 14, 2023 | Deprince Race & Zollo Inc | 13G/A | — | — | SEC |
| 10 | Feb 13, 2023 | Renaissance Technologies LLC | 13G/A | 6.6% | 1.29M | SEC |
17 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Spok Hldgs Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 1.68M | $18.27M |
| 2 | Renaissance Technologies LLC | 1.26M | $13.75M |
| 3 | Dimensional Fund Advisors LP | 715.9K | $7.80M |
| 4 | Geode Capital Management, LLC | 545.7K | $5.95M |
| 5 | State Street Corp | 461.8K | $5.03M |
| 6 | Hightower Advisors, LLC | 381.8K | $4.16M |
| 7 | Goldman Sachs Group Inc | 219.6K | $2.39M |
| 8 | Bank Of New York Mellon Corp | 217.8K | $2.37M |
| 9 | Northern Trust Corp | 216.5K | $2.36M |
| 10 | Uniplan Investment Counsel, Inc. | 209.6K | $2.28M |