PLANO, TX
SPOK HOLDINGS, INCSPOK— Latest position per institution from SEC 13F filings
15
Institutional holders
22.40M
Total shares held
123.19M
Estimated value
1.12M
Avg. position size
KINGSTONE CAPITAL PARTNERS TEXAS, LLC
CIK 2057208
Shares
11.18M
Value
164.89K
Filed
Jun 30, 2025
BLACKROCK, INC.
CIK 2012383
Shares
1.72M
Value
17.60M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.43M
Value
21.13M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
1.23M
Value
16.21M
Filed
Dec 31, 2025
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
1.15M
Value
11.76M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
872.36K
Value
8.93M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
717.62K
Value
7.35M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
595.84K
Value
6.10M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
471.58K
Value
4.83M
Filed
Jun 30, 2026
FOUNDRY PARTNERS, LLC
CIK 1573913
Shares
359.93K
Value
5.92M
Filed
Mar 31, 2025
HIGHTOWER ADVISORS, LLC
CIK 1462245
Shares
339.89K
Value
3.48M
Filed
Jun 30, 2026
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
322.04K
Value
4.25K
Filed
Dec 31, 2025
PARALLAX VOLATILITY ADVISERS, L.P.
CIK 1521001
Shares
292.66K
Value
4.18M
Filed
Sep 30, 2023
QUBE RESEARCH & TECHNOLOGIES LTD
CIK 1729829
Shares
287.62K
Value
2.95M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
281.98K
Value
2.89M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
273.28K
Value
2.80M
Filed
Jun 30, 2026
BANK OF NEW YORK MELLON CORP
CIK 1390777
Shares
234.11K
Value
2.40M
Filed
Jun 30, 2026
NORTHERN TRUST CORP
CIK 73124
Shares
222.90K
Value
2.28M
Filed
Jun 30, 2026
UNIPLAN INVESTMENT COUNSEL, INC.
CIK 1520710
Shares
215.76K
Value
2.21M
Filed
Jun 30, 2026
CSM ADVISORS, LLC
CIK 1863523
Shares
212.91K
Value
2.18K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | KINGSTONE CAPITAL PARTNERS TEXAS, LLC | 2057208 | 11.18M | 164.89K | Jun 30, 2025 |
| 2 | BLACKROCK, INC. | 2012383 | 1.72M | 17.60M | Jun 30, 2026 |
| 3 | BLACKROCK FINANCE, INC. | 1364742 | 1.43M | 21.13M | Jun 30, 2024 |
| 4 | VANGUARD GROUP INC | 102909 | 1.23M | 16.21M | Dec 31, 2025 |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 1.15M | 11.76M | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 872.36K | 8.93M | Jun 30, 2026 |
| 7 | DIMENSIONAL FUND ADVISORS LP | 354204 | 717.62K | 7.35M | Jun 30, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 595.84K | 6.10M | Jun 30, 2026 |
| 9 | STATE STREET CORP | 93751 | 471.58K | 4.83M | Jun 30, 2026 |
| 10 | FOUNDRY PARTNERS, LLC | 1573913 | 359.93K | 5.92M | Mar 31, 2025 |
| 11 | HIGHTOWER ADVISORS, LLC | 1462245 | 339.89K | 3.48M | Jun 30, 2026 |
| 12 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 322.04K | 4.25K | Dec 31, 2025 |
| 13 | PARALLAX VOLATILITY ADVISERS, L.P. | 1521001 | 292.66K | 4.18M | Sep 30, 2023 |
| 14 | QUBE RESEARCH & TECHNOLOGIES LTD | 1729829 | 287.62K | 2.95M | Jun 30, 2026 |
| 15 | GOLDMAN SACHS GROUP INC | 886982 | 281.98K | 2.89M | Jun 30, 2026 |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 273.28K | 2.80M | Jun 30, 2026 |
| 17 | BANK OF NEW YORK MELLON CORP | 1390777 | 234.11K | 2.40M | Jun 30, 2026 |
| 18 | NORTHERN TRUST CORP | 73124 | 222.90K | 2.28M | Jun 30, 2026 |
| 19 | UNIPLAN INVESTMENT COUNSEL, INC. | 1520710 | 215.76K | 2.21M | Jun 30, 2026 |
| 20 | CSM ADVISORS, LLC | 1863523 | 212.91K | 2.18K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.