Ionis reported revenue of $452 million in Q2 2025, a twofold increase year-over-year, and $584 million for the first six months, up nearly 70% versus prior year.
Non-GAAP net income was $154 million for the quarter.
Operating expenses increased 8% year-over-year, with sales and marketing expenses rising due to Tryngolza launch and Donidalorsen preparations, while R&D expenses decreased as late-stage studies concluded.
R&D collaboration revenue included a $280 million upfront payment for the sapablursen license, nearly 100% of which dropped to the bottom line.
Royalty revenues increased approximately 10% to $70 million, driven by SPINRAZA and Wainua contributions.
Sales and marketing expenses included minority portion of Wainua's sales and marketing costs.
Tryngolza generated $19 million in net product sales in Q2, a threefold increase quarter-over-quarter.