Utilize the input text as a context reference, choose the right relationship between Kraft Heinz and Berkshire Hathaway 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.

Two separate filings that said they were submitted by Loreto M. Zamora on behalf of LMZ & Berkshire Hathaway Co. to the Securities and Exchange Commission on Thursday morning claimed to hold at least 10% stakes in both Kraft Heinz and Phillips 66.

Answer: owned_by