Electrocore LLC of Basking Ridge, N.J., has filed for an initial public offering. Electrocore, which makes health-care technology, seeks to raise $74.8 million, though that number could be a placeholder. The stock would trade on the Nasdaq under the ticker symbol "ECOR." The company listed revenue of $81,000 and net losses of $9.5 million in the first quarter of this year. The company logged losses of $35.8 million on sales of $811,500 in 2017. Evercore ISI, Piper Jaffray, and JMP Securities are underwriting the issue.