Zymeworks (NASDAQ: ZYME) seals $250M Ziihera royalty financing
Rhea-AI Filing Summary
Zymeworks Inc. has entered into a $250 million non-recourse royalty-backed note financing with Royalty Pharma, using 30% of future worldwide tiered royalties on Ziihera (zanidatamab-hrii) from Jazz and BeOne as repayment collateral. The funding is structured through a special-purpose subsidiary that sold a 30% royalty interest and simultaneously borrowed $250 million under a term loan maturing on December 31, 2042.
The total amount payable under the loan is about $412.5 million if fully repaid on or before December 31, 2033, or approximately $481.3 million if repaid by final maturity, inclusive of interest, premiums, fees and other amounts. Zymeworks will retain 70% of Ziihera royalties during the repayment period, with full royalty rights reverting once Royalty Pharma’s capped return is reached, and it keeps all regulatory and commercial milestone payments, including up to $1.5 billion in potential remaining milestones tied to approvals and sales.
The loan is secured only by the subsidiary’s royalty assets and related equity interests, and Royalty Pharma has no recourse to other Zymeworks or Zymeworks BC assets under the agreement. The arrangements include customary covenants, restrictions on modifying key collaboration agreements for Ziihera, and events of default tied to termination of those agreements or a change of control of the company.
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Insights
Large non-recourse royalty note trades Ziihera upside for $250 million cash.
Zymeworks secures $250.0 million through a non-recourse, royalty-backed note tied to 30% of future Ziihera royalties under the Jazz and BeOne agreements. The structure channels those royalties into a special-purpose subsidiary that also borrows the funds via a term loan maturing on December 31, 2042.
The loan economics are clearly defined: total payments to lenders are about $412.5 million if repaid in full on or before December 31, 2033, or roughly $481.3 million if paid by final maturity, including interest, yield protection, early redemption fees and exit fees. This effectively caps Royalty Pharma’s return at 1.65x or 1.925x the original note amount, after which Zymeworks ceases sharing royalties and regains full Ziihera royalty rights.
Risk is concentrated in Ziihera performance and the durability of the Jazz and BeOne collaborations. The loan and related covenants restrict amendments to the covered agreements, transfers of Ziihera-related intellectual property and additional monetizations of retained royalties. Events of default, including termination of the Jazz or BeOne agreements or a change of control of Zymeworks, allow Royalty Pharma to accelerate the loan and enforce on the pledged collateral, though recourse is limited to the royalty assets and associated equity interests.