Illumina Inc (ILMN)
Healthcare
Diagnostics & Research
205.10 $
+0.0%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Illumina Inc (ILMN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.8% of the shares are freely tradable; institutional investors hold 106.5%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
106.5%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
0.2%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
97.8%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
10.0%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
151Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 12.52 | 19,023,590 | +3.8 | 03/31/2026 |
| Capital World Investors | 10.24 | 15,549,960 | -22.6 | 03/31/2026 |
| Vanguard Group Inc | 9.45 | 14,355,380 | -1.9 | 12/31/2025 |
| Vanguard Portfolio Management, LLC | 4.49 | 6,823,654 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.34 | 6,594,836 | +0.0 | 03/31/2026 |
| State Street Corp | 4.23 | 6,429,344 | +3.9 | 03/31/2026 |
| WCM Investment Management | 3.90 | 5,923,173 | +45.5 | 03/31/2026 |
| AQR Capital Management LLC | 2.62 | 3,981,080 | -10.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.41 | 5,187,042 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.05 | 4,627,335 | +0.5 | 04/30/2026 |
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.