shares of irobot corp irbt fell in the extended session tuesday after the robotappliance maker’s results came in worse than feared shares of irobot fell 8 after hours following a 05 gain in the regular session to finish at 3828 the company reported a firstquarter loss of 811 million or 295 a share compared with a loss of 304 million or 112 a share in the yearago period the adjusted loss which excludes stockbased compensation expenses and other items was 167 a share compared with a loss of 66 cents a share in the yearago period revenue fell to 1603 million from 292 million in the yearago