Tetratherix has reworked its royalty arrangements with the University of Sydney, replacing a layered set of payment obligations with a single flat royalty that the company says will strengthen its margins as its first products approach market.
The company said it had signed a new Revenue Sharing Agreement with the University, where Dr Ali Fathi carried out the original research into the Tetramatrix platform during his PhD.
The agreement took effect from 1 July 2026. It replaces the royalty and reporting obligations set out in section 7.3(c) of the company's prospectus dated 4 June 2025.
The University will now receive a flat royalty of 2.5 per cent of net product revenue across Tetratherix's product sales until 30 June 2036. That rate replaces the previous tiered royalty, licence fee royalty and indexed minimum royalty.
The company said the new arrangement gives both parties a clear and predictable basis for payments over the next decade and reduces administrative complexity. It also ties the University's returns to the platform's commercial success as Tetratherix and its partners bring products to market.
Will Knox said the platform's origins were central to the company's identity.
"Tetramatrix is a product of Australian science. The platform began as an idea in the laboratories of the University of Sydney and has grown into a global export opportunity, with products now moving towards markets in the United States and beyond. We are proud of that origin, and we are committed to strengthening the ecosystem of Australian innovation that made it possible."
He said the company had sought the new terms itself.
"As custodians of the TTX mission and shareholder capital, we take seriously our responsibility to ensure every commercial arrangement delivers the best possible outcome for our patients, our partners and shareholders. That responsibility led TTX to proactively renegotiate its royalty arrangements with the University of Sydney."
Mr Knox said the change would improve the company's short-term financial position and make its future earnings more predictable.
"The new single, flat royalty reduces the royalties payable on licensing revenues, strengthening our P&L in the near term and the overall margin profile as our first products reach market. It also gives us certainty over margins for the next decade as we commercialise products across the Tetramatrix™ platform, and allows clear financial modelling for our partners and investors. We thank the University of Sydney for working constructively with us and look forward to building on a strong partnership."
The company said the continued partnership would help build the local innovation ecosystem and that it expected to keep working with the University.