Utilize the input text as a context reference, choose the right relationship between Aimco and Apartment 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.

Apartment Investment and Management Company (“Aimco”) (NYSE: AIV) [DENVER] announced that Ernie Freedman has resigned as Executive Vice President and Chief Financial Officer of Aimco to join Invitation Homes.

Answer: product_or_material_produced