ILMN
Illumina Inc
239.60$
-2.3%
vs. previous close
Closing price · As of: Sep 18, 2026
Ownership
Ownership Structure
Who owns Illumina Inc (ILMN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.2% of the shares are freely tradable; institutional investors hold 106.5%.
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.
99.2%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
10.5%
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 | 12.60 | 19,023,590 | +3.8 | 03/31/2026 |
| Capital World Investors | 10.22 | 15,425,298 | -0.8 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.52 | 6,823,654 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.37 | 6,594,836 | +0.0 | 03/31/2026 |
| State Street Corp | 4.26 | 6,429,344 | +3.9 | 03/31/2026 |
| WCM Investment Management | 3.92 | 5,923,173 | +45.5 | 03/31/2026 |
| AQR Capital Management LLC | 2.64 | 3,981,080 | -10.1 | 03/31/2026 |
| Corvex Management LP | 2.54 | 3,829,608 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.51 | 5,299,024 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.03 | 4,577,318 | +0.3 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Meister Keith A. | Director | 770,350 | 184,575,860 $ | Sep 4, 2026 | indirect |
| Barnard Steven | SVP, Chief Technology Officer | 40,927 | 9,806,109 $ | Sep 5, 2026 | direct |
| Davies Scott M | Chief Legal Officer | 20,338 | 4,872,985 $ | Jul 30, 2026 | direct |
| Coletti Julie Ann | Chief Legal Officer | 18,763 | 4,495,615 $ | Sep 8, 2026 | direct |
| Wedel Christensen Jakob | SVP, Strategy/Corp Development | 14,023 | 3,359,911 $ | Aug 18, 2026 | direct |
| Sullivan Michael C | Chief Commercial Officer | 4,503 | 1,078,919 $ | Aug 5, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 8, 2026 | Coletti Julie Ann | Chief Legal Officer | Other | 14,214 | 0.00 | – |
| Sep 8, 2026 | Coletti Julie Ann | Chief Legal Officer | Other | 4,549 | 0.00 | – |
| Sep 5, 2026 | Barnard Steven | SVP, Chief Technology Officer | Other | 408 | 211.06 | 86,112 |
| Sep 4, 2026 | Meister Keith A. | Director | Sell | 11,351 | 219.18 | 2,487,912 |
| Sep 4, 2026 | Meister Keith A. | Director | Sell | 100,650 | 218.39 | 21,980,954 |
| Sep 4, 2026 | Meister Keith A. | Director | Sell | 7,500 | 217.28 | 1,629,600 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 9,961 | 221.55 | 2,206,860 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 6,656 | 220.17 | 1,465,452 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 13,717 | 219.41 | 3,009,647 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 9,721 | 218.33 | 2,122,386 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 14,196 | 217.29 | 3,084,649 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 13,261 | 216.38 | 2,869,415 |
| Sep 3, 2026 | Meister Keith A. | Director | Sell | 8,439 | 215.20 | 1,816,073 |
| Sep 2, 2026 | Meister Keith A. | Director | Sell | 10,620 | 213.73 | 2,269,813 |
| Sep 2, 2026 | Meister Keith A. | Director | Sell | 57,488 | 213.20 | 12,256,442 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 9,405 | 231.23 | 2,174,718 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 28,439 | 230.54 | 6,556,327 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 16,990 | 229.72 | 3,902,943 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 24,363 | 228.64 | 5,570,356 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 54,309 | 227.67 | 12,364,530 |
| Aug 27, 2026 | Meister Keith A. | Director | Sell | 4,873 | 226.74 | 1,104,904 |
| Aug 26, 2026 | Meister Keith A. | Director | Sell | 425 | 227.22 | 96,569 |
| Aug 26, 2026 | Meister Keith A. | Director | Sell | 14,782 | 226.50 | 3,348,123 |
| Aug 26, 2026 | Meister Keith A. | Director | Sell | 53,123 | 225.69 | 11,989,330 |
| Aug 26, 2026 | Meister Keith A. | Director | Sell | 38,213 | 224.72 | 8,587,225 |
| Aug 25, 2026 | Meister Keith A. | Director | Sell | 42 | 226.79 | 9,525 |
| Aug 25, 2026 | Meister Keith A. | Director | Sell | 38,201 | 226.13 | 8,638,392 |
| Aug 25, 2026 | Meister Keith A. | Director | Sell | 92,776 | 225.26 | 20,898,722 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 3,883 | 220.13 | 854,765 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 133,256 | 219.47 | 29,245,694 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 86,825 | 218.60 | 18,979,945 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 8,187 | 217.84 | 1,783,456 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 12,602 | 216.44 | 2,727,577 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 9,365 | 215.61 | 2,019,188 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 13,668 | 214.64 | 2,933,700 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 6,821 | 213.81 | 1,458,398 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 13,050 | 212.65 | 2,775,083 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 7,151 | 211.54 | 1,512,723 |
| Aug 21, 2026 | Meister Keith A. | Director | Sell | 4,528 | 210.45 | 952,918 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 9,348 | 219.82 | 2,054,877 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 5,693 | 218.46 | 1,243,693 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 21,147 | 217.72 | 4,604,125 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 15,263 | 216.88 | 3,310,239 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 18,405 | 215.62 | 3,968,486 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 42,218 | 214.57 | 9,058,716 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 71,939 | 213.36 | 15,348,905 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 29,805 | 212.83 | 6,343,398 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 34,009 | 211.90 | 7,206,507 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 23,638 | 210.66 | 4,979,581 |
| Aug 20, 2026 | Meister Keith A. | Director | Sell | 9,078 | 209.68 | 1,903,475 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 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.