Deal Flow
Letter · prints on one page
Transaction tear sheetData as of Nov 7, 2026
M&A · Healthcare · Biological Products, (No Diagnostic Substances)

Johnson & Johnson to acquire Ambrx Biopharma, Inc.

Announced Jan 8, 2024 · Closed Mar 7, 2024

Deal value$2.00BEV $1.77B
Premium105.0%To unaffected price
EV / Adj. EBITDA—
ConsiderationAll cash$28.00 per share

Transaction

Acquirer
Johnson & Johnson (JNJ)
Target
Ambrx Biopharma, Inc.
Buyer type
Strategic
Offer price per share
$28.00
Enterprise value
$1.77B
Status
Closed Mar 7, 2024

Deal protections

Break fee (target pays)
$70.0M · 3.5%
Reverse fee (buyer pays)
—
Go-shop
No-shop
Financing
No financing condition

Advisors

To the acquirer
Not disclosed
To the target
Centerview, Cantor Fitzgerald
Centerview fee
$29.9M

Sector context · Healthcare

Comparable deals
103 in the prior 24 months
Premium
105.0% vs. 53.0% sector median
EV / Adj. EBITDA
Sector median 17.1x
Break fee
3.5% vs. 3.5% sector median

Timeline

  1. AnnouncedJan 8, 2024
  2. Proxy filedJan 19, 2024
  3. Definitive proxyJan 29, 2024
  4. Shareholder voteMar 6, 2024
  5. ClosedMar 7, 2024

Valuation · fairness opinions

Discounted cash flow$19.30$23.45
Analyst price targets$9.00$32.00
Premiums paid$22.05$28.05
Premiums paid$22.25$30.75
Offer $28.00

Implied value per Ambrx Biopharma, Inc. share by analysis, from Centerview · DCF discount rate 14%–16%.

Sources
  • DEFA14A (EX-99.1) · Jan 8, 2024
  • 8-K · Jan 8, 2024
  • 8-K (EX-99.1) · Mar 6, 2024

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.