Illumina, Inc. is a publicly traded corporation listed on the Nasdaq stock exchange under the ticker symbol ILMN, meaning it is owned collectively by its shareholders rather than a single private entity. Its diverse ownership base comprises major global institutional asset management firms, prominent mutual fund complexes, retail investors, and corporate insiders. Institutional giants such as Vanguard, BlackRock, and various specialized healthcare funds hold significant aggregate stakes in the genomic sequencing pioneer, while shares are actively bought and sold on the public market during trading hours.