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Investing.com -- Alnylam Pharmaceuticals Inc (NASDAQ:ALNY) shares surged 17.6% after the RNAi therapeutics company reported second-quarter earnings that significantly exceeded analyst expectations, driven by strong sales of its ATTR amyloidosis treatments.
The company posted adjusted earnings of $0.32 per share for the quarter ended June 30, 2025, dramatically outperforming the analyst consensus estimate of -$0.59. Revenue reached $773.7 million, substantially above the $643.2 million analysts had projected. Total (EPA:TTEF) net product revenues increased 64% YoY to $672.2 million, primarily fueled by AMVUTTRA’s performance in ATTR cardiomyopathy.
"Our first full quarter of AMVUTTRA sales in ATTR-CM provided a significant inflection in our TTR franchise revenues, with total net product revenues growing 64% year-over-year," said Yvonne Greenstreet, CEO of Alnylam. "While still early in the launch, we are very encouraged by the initial pace of uptake."
AMVUTTRA’s sales reached $492 million, up 114% YoY, while the company’s rare disease drugs GIVLAARI and OXLUMO generated combined revenues of $127.7 million, representing 24% growth compared to the same period last year.
Following these strong results, Alnylam raised its 2025 total net product revenue guidance to $2.65-$2.8 billion, up from the previous range of $2.05-$2.25 billion. This represents expected growth of 61-70% compared to 2024.
The company continues to advance its pipeline, with the TRITON-CM Phase 3 trial of nucresiran in ATTR-CM underway and two additional Phase 3 trials expected to start this year. Alnylam also announced that nucresiran has received Fast Track Designation from the FDA for the treatment of ATTR cardiomyopathy.
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