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ILMN SCHEDULE 13G/A: SEC filing

Capital World Investors

Filed with the SEC on · accession 0001422849-26-000207

ILMN filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Nov 13, 2026. Capital World Investors filed an amended Schedule 13G/A disclosing beneficial ownership of 10,050,907 shares, or 6.7%, of Illumina, Inc. common stock as of September 30, 2026. The stock moved -1.2% by the first close after the filing.

Summary of the filing

Capital World Investors filed an amended Schedule 13G/A disclosing beneficial ownership of 10,050,907 shares, or 6.7%, of Illumina, Inc. common stock as of September 30, 2026. The filing is a passive investment disclosure with no intent to influence control of the company.

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Key details

Shares beneficially owned by Capital World Investors$10.1M
Percent of class beneficially owned$7
Shares believed to be outstanding$151.0M
Filer / beneficial owner of 6.7% of illumina common stockCapital World Investors
Subject company / issuerIllumina, Inc.
Vice president and senior counsel, capital research and management companyTimothy J. Moon

How ILMN stock reacted

Close before

$209.55

Nov 12, 2026

First close after

-1.21%

$207.01

5 trading days

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Since filing

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Frequently asked questions

What did ILMN file with the SEC on Nov 13, 2026?

ILMN filed a SCHEDULE 13G/A (SEC filing). Capital World Investors filed an amended Schedule 13G/A disclosing beneficial ownership of 10,050,907 shares, or 6.7%, of Illumina, Inc. common stock as of September 30, 2026. The filing is a passive investment disclosure with no intent to influence control of the company.

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 $209.55 before the filing and $207.01 on Nov 13, 2026 (-1.21%).

Other ILMN SEC filings

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