Renaissance Capital logo

Pneumonia biotech Arsanis decreases proposed IPO deal size

November 15, 2017
X4 Pharmaceuticals (Arsanis) logo

Arsanis, which is developing antibodies designed to prevent serious infectious diseases, lowered the proposed deal size for its upcoming IPO on Wednesday.

The Waltham, MA-based company now plans to raise $40 million by offering 4 million shares at a price range of $10 to $10. Insiders intend to purchase $20 million worth of shares in the offering. The company had previously filed to offer 3.1 million shares at a range of $15 to $17. At the midpoint of the revised range, Arsanis will raise -20% less in proceeds than previously anticipated.

Arsanis was founded in 2010 and booked n/a in sales for the 12 months ended September 30, 2017. It plans to list on the Nasdaq under the symbol ASNS. Citi, Cowen & Company and Piper Jaffray are the joint bookrunners on the deal. It is expected to price during the week of November 13, 2017.