Qualstar

Qualstar Corp. reported on Thursday net income of $671,000 (33 cents a share) for the fourth quarter ended Dec. 31, compared to a net loss of $407,000 (-20 cents) for the same quarter a year earlier. Revenue increased 45.5 percent to $3.2 million.

The Simi Valley manufacturer of data storage and power supply equipment credited its sales increases to “new reseller relationships, whose customers have a high demand for tape libraries.”

Shares of Qualstar (QBAK) closed Friday up $2.29 cents, or 25 percent, to $11.47 on the Nasdaq.


Interlink Electronics

Interlink Electronics Inc. reported on Thursday a net loss of $5,000 (0 cents a share) for the fourth quarter ended Dec. 31, compared to net income of $924,000 (12 cents) for the same quarter a year earlier. Revenue fell 15.3 percent to $2.4 million.

Westlake Village electronics manufacturer attributed its lower revenue to “the loss of a major customer who implemented a design change in their automotive product.”

Shares of Interlink (LINK) closed Friday up 11 cents, or 2 percent, to $5.60 on the Nasdaq.


Sienna Biopharmaceuticals

Sienna Biopharmaceuticals Inc. reported a fourth-quarter loss of $11.2 million (-56 cents a share) for the fourth quarter ended Dec. 31, as the biotech research company had no revenue.

Chief Executive Dr. Frederick Beddingfield III said the company was looking forward to progress with its pipeline drugs, with data from five clinical trials scheduled for the next year.

Despite the losses, shares of Sienna (SNNA) closed Friday up $1.07, or 6 percent, to $19.02 on the Nasdaq.