Spok Holdings Inc (SPOK)
Healthcare
Health Information Services
10.90 $
+1.4%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Spok Holdings Inc (SPOK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.4% of the shares are freely tradable; institutional investors hold 56.3%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
56.3%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
2.3%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
86.4%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
2.4%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
21Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.03 | 1,676,227 | -6.9 | 03/31/2026 |
| Renaissance Technologies Corp | 6.04 | 1,261,579 | +1.2 | 03/31/2026 |
| Vanguard Group Inc | 5.88 | 1,229,078 | +6.4 | 12/31/2025 |
| Vanguard Capital Management, LLC | 4.12 | 859,530 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.43 | 715,869 | +1.7 | 03/31/2026 |
| Geode Capital Management, LLC | 2.61 | 545,718 | -8.8 | 03/31/2026 |
| State Street Corp | 2.21 | 461,790 | +3.3 | 03/31/2026 |
| HighTower Advisors, LLC | 1.83 | 381,815 | -0.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 2.95 | 615,117 | +0.0 | 04/30/2026 |
| iShares Russell 2000 ETF | 2.10 | 438,821 | +0.9 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.