SAN FRANCISCO — A woman facing insider-trading charges at the SEC involving her husband, a partner at a major accounting firm, and some overseas relatives pleaded guilty today to a related criminal obstruction count and agreed to cooperate with the government.

In a hearing before U.S. District Judge William Alsup, Annabel McClellan admitted to lying to the Securities and Exchange Commission. In exchange for her cooperation, prosecutors agreed to seek a prison term of 10 to 16 months. Alsup today agreed to put off judgment and sentencing until late September since the deal is contingent upon her cooperation.