Skip to main content
Signal8

Full Access with Signal8 Pro, $49/mo billed annually.

Summit Therapeutics Inc. (SMMT) Form 8-K — Sep 28, 2026

$SMMTForm 8-KItems 1.01, 3.02, 5.03, 8.01, 9.01Filed Sep 28, 2026, 9:39 PM ET0001193125-26-405776Original filing

Summit Therapeutics signed a securities purchase agreement on September 28, 2026 to sell 108,955.3686 Class A Convertible Preferred shares to AstraZeneca Holdings B.V. for $2.0 billion in gross proceeds, priced at $18.3561 per underlying common share. Each preferred share converts into 1,000 common shares, implying roughly 109 million new common shares once converted, and AstraZeneca receives preemptive rights and third-party acquisition participation rights. Conversion requires HSR clearance and a charter amendment increasing authorized common stock to at least 1.25 billion shares; if that amendment fails within 18 months, Summit must redeem the preferred at market value.

Key figures

Gross Proceeds
2000000000
Offering Price
$18,356.14 per preferred share ($18.3561 per underlying common share)
Shares Offered
108,955.3686 preferred shares (convertible into ~108,955,369 common shares)
Conversion ratio
1,000 common shares per preferred share
Amendment deadline
18 months from initial issue date
Authorized share increase
to not fewer than 1,250,000,000 common shares

AI analysis

Red flags4 · Pro

The rest of the AI analysis, red flags and sentiment are part of Signal8 Pro.

AI-generated analysis of a public disclosure. Not investment advice; verify against the original document.