The stock was down 4.76% to $5.60 a share in premarket trading.
The adjusted loss in the fourth quarter was 5 cents a share vs. analysts' estimates that called for earnings of 35 cents. Revenue was $98.5 million, missing Wall Street estimates of $99.9 million.
The net loss in the quarter was $10.4 million, or 72 cents a share, vs. year-earlier earnings of $7.7 million, or 49 cents.
Management mentioned two issues investors clearly are worried about: Brexit and the Toys 'R' Us bankruptcy.
"We believe there were a number of unusual challenges that converged to negatively impact our financial results last year," said Sharon Price John, president and CEO of Build-A-Bear. "In North America, our largest overall market, we had a low single-digit sales decline and modest profit on an adjusted basis; however, the waning consumer confidence related to Brexit and new privacy laws that inhibited consumer communication in our largest international market, the United Kingdom, resulted in disappointing financial results for the year on a consolidated basis."
"Other impacts for the year included the full-year closure of our most profitable, multi-million-dollar retail store, the liquidation of Toys 'R' Us, the impact of new accounting standards and tax policies, and lower licensed product sales due to the significant reduction in family-centric movie properties," John added.
The stock has declined 32% in the past year.