The firm said it will offer 4.5 million shares of its common stock at $20 per share. It expects to close its follow-on public offering on July 16.
The molecular diagnostics company previously raised $180 million in its 2015 initial public offering.
Natera led the Index with a 61 percent increase in stock price, driven by the firm's announcement that it was entering the transplantation market.
The company outlined its plans to launch a kidney transplant rejection test that is based on cell-free DNA in 2019 and described its progress in breast cancer research.
The Belgian cancer center plans to evaluate Natera's ctDNA assay for evaluating response and detecting minimal residual disease in breast cancer patients.
The firm said it would likely do a joint submission of its ctDNA assay to the FDA and CMS for approval and a national coverage determination.
The molecular diagnostics firm recognized $62.3 million in first quarter 2018 revenues, and it processed more than 164,000 tests.
The company presented three posters at AACR, two of which demonstrated insights from its circulating DNA monitoring in colorectal and bladder cancers.
The suit alleges that Natera's Panorama test infringes US Patent No. 9,493,831 patent, which covers sequencing library preparation methods applied to maternal blood samples.
In Q4 Natera tallied revenues of $53.8 million compared to $49.3 million a year ago, falling short of the consensus Wall Street estimate of $57.1 million.
US National Institutes of Health Director Francis Collins says he will avoid male-only speaker panels.
Two patients fell ill, and one subsequently died, following a fecal microbiome transplant that harbored multi-drug-resistant bacteria, according to the New York Times.
Technology Review reports that eGenesis is testing whether organs from genetically modified pigs can be transplanted into monkeys.
In Science this week: almond reference genome, and more.