ILMN SCHEDULE 13G/A: SEC filing
An institutional holder
Filed with the SEC on · accession 0002012383-26-003908
ILMN filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Oct 27, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +3.1% by the first close after the filing.
Summary of the filing
An institutional holder filed an amended Schedule 13G regarding its beneficial ownership position in Illumina, Inc. The filing indicates a change in the holder's ownership stake, though specific details are not disclosed in the available text.
Key details
How ILMN stock reacted
Close before
$271.04
Oct 26, 2026
First close after
+3.11%
$279.47
5 trading days
-16.40%
$226.58
Since filing
-21.37%
$213.13
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Click hereFrequently asked questions
What did ILMN file with the SEC on Oct 27, 2026?
ILMN filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G regarding its beneficial ownership position in Illumina, Inc. The filing indicates a change in the holder's ownership stake, though specific details are not disclosed in the available text.
How do I read a SCHEDULE 13G/A?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).
How did ILMN stock react to this filing?
ILMN closed at $271.04 before the filing and $279.47 on Oct 27, 2026 (+3.11%). Five trading days later: $226.58 (-16.40%).
Other ILMN SEC filings
- 10-Q · SEC filingOct 30, 2026
- 8-K · SEC filingOct 29, 2026
- 8-K · Material agreementOct 13, 2026
- 8-K · Material agreementAug 17, 2026
- 8-K · Material agreementAug 13, 2026
- 8-K · Material agreementAug 12, 2026
- 424B2 · Secondary offeringAug 10, 2026
- 8-K · Legal settlementAug 7, 2026
- 10-Q · SEC filingJul 31, 2026
- 8-K · SEC filingJul 30, 2026
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