The breast IPO of 2014: breast implant maker Sientra files for an $86 million IPO

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Sientra, an early-stage producer of silicone breast implants, filed on Friday with the SEC to raise up to $86 million in an initial public offering.

Sientra received FDA approval in 2012 for its silicone gel breast products that use proprietary branded TRUE texture. Its portfolio of breast implants are offered in over 120 variations to plastic surgeons. The company estimates that the US market for breast implants and tissue expanders was $600 million in 2013. Sientra notes that its industry is dominated by two major breast implant producers, Mentor (a division of Johnson & Johnson) and Allergan. In 2012, Mentor filed a lawsuit alleging that employees breached confidentiality and non-compete agreements, which were later dismissed in court.

Primary shareholders include OrbiMed, Clarus Lifesciences, Abingworth Bioventures, Goldman Sachs, Teachers Insurance and Annuity Association and founder and CEO Hani Zeini.

Revenue increased 22% to $22 million for the six months ended June 30, 2014 as plastic surgeons became more familiar with its products. Its gross margin fell 100 bps to 75% due to higher manufacturing costs and targeted pricing programs. Sientra's loss from operations narrowed to about $3 million from $9 million because of litigation expenses in the 1H13 related to Mentor litigation. The company has taken debt of $25 million as of June 30, up from $15 million at the end of December.

The Santa Barbara, CA-based company, which was founded in 2003 and booked $39 million in sales for the 12 months ended June 30, 2014, plans to list on the NYSE under the symbol SIEN. Sientra initially filed confidentially on July 18, 2014. Piper Jaffray and Stifel are the joint bookrunners on the deal. No pricing terms were disclosed.

The article The breast IPO of 2014: breast implant maker Sientra files for an $86 million IPO originally appeared on IPO investment manager Renaissance Capital's web site renaissancecapital.com.

Investment Disclosure: The information and opinions expressed herein were prepared by Renaissance Capital's research analysts and do not constitute an offer to buy or sell any security. Renaissance Capital, the Renaissance IPO ETF (symbol: IPO) or the Global IPO Fund (symbol: IPOSX) , may have investments in securities of companies mentioned.

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