Spok Holdings, Inc SPOK
CIK 0001289945 · CUSIP 84863T106
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock Inc. CIK 1364742 · View history | $21.13M 1,426,913 shares | 0.00% | +9.45K(+0.7%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $15.48M 1,045,356 shares | 0.00% | +19.16K(+1.9%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 03 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $15.03M 1,014,722 shares | 0.03% | +21.50K(+2.2%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $10.49M 708,032 shares | 0.00% | -6.60K(-0.9%)Reduced | SEC filing ↗ Aug 9, 2024 | ▾ |
| 05 | HighTower Advisors, LLC CIK 1462245 · View history | $9.57M 646,220 shares | 0.01% | +97.59K(+17.8%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 06 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $7.18M 484,469 shares | 0.00% | +33.31K(+7.4%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 07 | Foundry Partners, LLC CIK 1573913 · View history | $6.41M 433,135 shares | 0.34% | -3.83K(-0.9%)Reduced | SEC filing ↗ Aug 5, 2024 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $5.97M 403,409 shares | 0.00% | -2.70K(-0.7%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 09 | ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history | $4.75M 321,157 shares | 0.01% | +119.10K(+58.9%)Added | SEC filing ↗ Aug 6, 2024 | ▾ |
| 10 | PRUDENTIAL FINANCIAL INC CIK 1137774 · View history | $4.62M 312,240 shares | 0.01% | -23.20K(-6.9%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 11 | Bank of New York Mellon Corp CIK 1390777 · View history | $3.44M 232,210 shares | 0.00% | +2.30K(+1.0%)Added | SEC filing ↗ Jul 25, 2024 | ▾ |
| 12 | MORGAN STANLEY CIK 895421 · Amended · View history | $3.14M 212,067 shares | 0.00% | +24.75K(+13.2%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 13 | Uniplan Investment Counsel, Inc. CIK 1520710 · View history | $3.11M 209,825 shares | 0.28% | +53.73K(+34.4%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $2.91M 196,413 shares | 0.00% | -7.08K(-3.5%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 15 | FULLER & THALER ASSET MANAGEMENT, INC. CIK 1082327 · View history | $2.54M 171,478 shares | 0.01% | -8.27K(-4.6%)Reduced | SEC filing ↗ Aug 9, 2024 | ▾ |
| 16 | PRELUDE CAPITAL MANAGEMENT, LLC CIK 1387508 · View history | $2.19M 147,885 shares | 0.18% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 17 | GSA CAPITAL PARTNERS LLP CIK 1362033 · View history | $2.17M 146,847 shares | 0.15% | +42.59K(+40.8%)Added | SEC filing ↗ Aug 15, 2024 | ▾ |
| 18 | Truvestments Capital LLC CIK 1750405 · View history | $1.97M 133,040 shares | 0.79% | +15.92K(+13.6%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 19 | Nuveen Asset Management, LLC CIK 1521019 · View history | $1.90M 128,290 shares | 0.00% | -212.07K(-62.3%)Reduced | SEC filing ↗ Aug 9, 2024 | ▾ |
| 20 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $1.57M 105,982 shares | 0.00% | +28.51K(+36.8%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
Showing 20 / 115 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 115 reporting institutions.
This page includes 20 of 115 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 115 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"84863T106","quarter":"2024Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.