MILWAUKEE--(BUSINESS WIRE)--The Ademi Firm is investigating 89bio (Nasdaq: ETNB) for possible breaches of fiduciary duty and other violations of law in its transaction with Roche. Click here to learn how to join our investigation and obtain additional information or contact us at gademi@ademilaw.com or toll-free: 866-264-3995. There is no cost or obligation to you. Shareholders of 89bio will receive $14.50 per share in cash at closing, plus a non-tradeable CVR to receive certain milestone payme. ...