Utilize the input text as a context reference, choose the right relationship between HM Treasury and UK Financial Investments from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Global banks Citigroup (NYSE: C - news ) , Goldman Sachs (NYSE: GS-PB - news ) , Morgan Stanley (Xetra: 885836 - news ) and UBS (NYSEArca: FBGX - news ) orchestrated the share sale but have each been instructed by UK Financial Investments Limited (UKFI) and HM Treasury not to sell further RBS shares for at least 90 days without prior written consent from a majority of the other selling banks.

Answer: owner_of