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After posting positive results from a midstage test for its RNAi candidate back in the spring, Sirnaomics has grabbed a $105 million series D round.

The cash boost, co-led by existing investor Rotating Boulder Fund, new investor Walvax Biotechnology Co. Ltd. and Sunshine Riverhead Capital, will go toward the biotech seeking to push deeper into the clinic and one day follow rival and RNA pioneer Alnylam to regulatory approval.

The $105 million will be put toward that R&D process for its RNAi therapeutics, which are on tap to treat a diverse range of diseases including cancers, fibrosis diseases, metabolic diseases and viral infections.