Deal Flow
Letter · prints on one page
Transaction tear sheetData as of Nov 7, 2026
M&A · Healthcare · Pharmaceutical Preparations

Roche Holdings Inc to acquire 89bio, Inc.

Announced Sep 18, 2025 · Closed Oct 30, 2025

Deal value$2.40BEV $2.31B
Premium79.0%To unaffected price
EV / Adj. EBITDA—
ConsiderationAll cash$14.50 per share

Transaction

Acquirer
Roche Holdings Inc
Target
89bio, Inc. (ETNB)
Buyer type
Strategic
Offer price per share
$14.50
Enterprise value
$2.31B
Status
Closed Oct 30, 2025

Deal protections

Break fee (target pays)
$79.9M · 3.3%
Reverse fee (buyer pays)
$79.9M · 3.3%
Go-shop
No-shop
Financing
No financing condition

Advisors

To the acquirer
Citigroup
To the target
Moelis, Centerview
Moelis fee
$1.0M

Sector context · Healthcare

Comparable deals
95 in the prior 24 months
Premium
79.0% vs. 67.0% sector median
EV / Adj. EBITDA
Sector median 14.5x
Break fee
3.3% vs. 3.4% sector median

Timeline

  1. AnnouncedSep 18, 2025
  2. Tender offerOct 1, 2025
  3. ClosedOct 30, 2025

Valuation · fairness opinions

Discounted cash flow$12.53$16.09
Offer $14.50

Implied value per 89bio, Inc. share by analysis, from Moelis.

Sources
  • 8-K (EX-99) · Sep 18, 2025
  • SC TO-C (EX-99.1) · Sep 18, 2025
  • 8-K · Sep 18, 2025

Adj. EBITDA is operating income + D&A + impairment, restructuring, deal costs and stock compensation, less any large gain on a sale, last twelve months, from the target's filings. Calculated by Castle, so it can differ from a bank's adjusted figure.

Prepared with Castle from public SEC EDGAR filings. Figures are extracted automatically; verify against the source documents. Not investment advice.