“They may have offered severance packages that people voluntarily took, which is not considered laid off,” said Patti Roberts, a spokesperson with the Employment Development Department.
Other California offices affected by the action include campuses in Santa Monica, Sunnyvale and Santa Clara.
Yahoo has had a troubling year as it seeks to carve out a niche for itself among other Internet companies, namely Google and Microsoft, the latter of which offered to buy Yahoo in April for $44.6 billion, or $31 per share.
On April 12, Yahoo laid off 111 workers from its Burbank site and 333 others at its California offices.
Since then, Yahoo’s stock value has lost more than half its value.
But news of Wednesday’s layoffs sent stock prices soaring nearly 10% to finish at $13.40 per share, their highest point since Oct. 9.