May 8 : Lime, which operates an electric bike and scooter network and is backed by Uber Technologies, reported a jump in yearly revenue in its filing for a U.S. initial public offering. The San Francisco-based startup did not reveal the terms of the offering in the filing. Activity in the U.S. IPO market has rebounded after a slowdown earlier in the year linked to volatile equity markets and the war in the Middle East. A flurry of sectors is now looking to tap into growing investor enthusiasm.