Cubic Corp. reported a net loss of $5.4 million on sales of $313.8 million in its first quarter, which ended Dec. 31.

In the same quarter one year ago, San Diego-based Cubic (NYSE: CUB) reported net income of $5.2 million on sales of $318.5 million.

The company said it completed its acquisitions of TeraLogics LLC and H4 Global during the quarter, and wrapped up its acquisition of GATR Technologies Inc. on Feb. 2.

Cubic made its quarterly results public early Feb. 4. Shares declined 16 percent that day to close at $33.78. They fell further to $31.13 on Feb. 8.

The company is really two businesses in one. It has a defense contracting arm and a second segment that produces electronics and services for mass transit.