Tenable Holdings Inc. TENB shares fell in the extended session Monday after the cybersecurity company topped Wall Street estimates for the quarter but disappointed with its revenue and billings outlook. Tenable shares dropped 14% after hours, following a 2.4% decline in the regular session to close at $45.40. The company reported a first-quarter loss of $25.1 million, or 22 cents a share, compared with a loss of $24.5 million, or 22 cents a share, in the year-ago period. Adjusted earnings, which exclude stock-based compensation expenses and other items, were 11 cents a share, compared with 6 cents a share in the year-ago…
