By Ian Walker

LONDON--The British government has reduced its stake in Lloyds Banking Group PLC (LYG) by another percentage point to 15.9%, the latest in a series of small sales of shares in the bailed-out bank.

Lloyds said Thursday the government now owns 11.35 billion shares, or 15.9% of the bank's voting rights. It previously held 12.04 billion shares.

No price was disclosed for the share sale, which was conducted on Monday.

Lloyds was bailed out by U.K. taxpayers during the financial crisis, with the government taking a 39% stake in the U.K.'s biggest retail bank. The government started selling its shares in Lloyds in late 2013.

After initially selling portions of Lloyds directly to investors through accelerated placements, the government in December mandated Morgan Stanley to sell stock up to the end of June. On June 1 the program was extended to Dec. 31. The government also said it would launch a share sale open to retail investors in the next 12 months and that details will be announced in due course.

Chancellor of the Exchequer George Osborne said in March that the government would sharply reduce its stake in Lloyds in the next year to raise at least 9 billion pounds ($14.19 billion). He said Lloyds' return to profit and the resumption of dividend payouts this year means "we can continue our exit from that bailout."

Mr. Osborne didn't give details on how the share sale would be carried out.

Write to Ian Walker at ian.walker@wsj.com