Neptune Wellness Solutions Inc. /zigman2/quotes/207537677/composite NEPT -7.69% /zigman2/quotes/203840062/delayed CA:NEPT -3.87% said Monday Chief Executive Jim Hamilton has stepped down after more than 4 years in the role, but will remain with the cannabis extraction company as an advisor. Neptune named Micheal Cammarata as its new CEO, effective Monday. The company said Cammarata, who has been a "serial entrepreneur" over the past 20 years, is the co-founder of wellness brand Schmidt's Naturals, which is now a business unit of Unilever PLC /zigman2/quotes/204685760/composite UL +0.28% . "[Cammarata] has identified new trends and opportunities which led to the development of market-leading products," said Chairman John Moretz. "These critical skills should benefit our customers. Moreover, Michael possesses the right mix of operational CEO experience, leadership skills, and technology industry expertise to help elevate Neptune to the next level." Neptune's stock, which was still inactive in premarket trading, has soared 74.4% year to date, while the ETFMG Alternative Harvest ETF /zigman2/quotes/204332491/composite MJ -3.38% has rallied 27.3% and the Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA +0.39% has gained 15.4%.