SAN DIEGO--(BUSINESS WIRE)--Johnson & Weaver, LLP is investigating possible breaches of fiduciary duty to shareholders of Illumina, Inc. (“Illumina” or the “Company”) (NASDAQ: ILMN) and other potential violations of law by the board of directors of Illumina (the “Board”) relating to the proposed acquisition of the Company by Roche. The firm is investigating, among other things, whether the Board breached its fiduciary duties by disregarding and responding unreasonably to Roche’s offer to acquire Illumina well above its market price.