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ILMN · Illumina, Inc. · Holdings

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$272.97 -20.72 (-7.06%)
Market Cap
$40.77B
Shares
151.00M
Volume · Oct 6 2.09M Avg daily vol (3M) 2.62M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 946
Total Value: $27,618,191,270
Total Shares: 157,164,072
Showing 1–100 of 971 holdings by value · page 1 of 10

Institutional Ownership Trend

28 quarters

Holder Concentration

Across 944 13F filers
Top Holder
12.2%
Sep 2023 → Jun 2026 · range 11.8% – 12.8%
of institutional value
Top 5
34.6%
Sep 2023 → Jun 2026 · range 33.2% – 40.6%
of institutional value
Top 10
47.8%
Sep 2023 → Jun 2026 · range 44.0% – 52.4%
of institutional value
HHI
365
Sep 2023 → Jun 2026 · range 357 – 466
Broadly held
Showing 100 of 971
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1110803 CUSIP 452327109 13F (30d) 24 filings 19 filers Visit website Investor relations