Koch agrees to buy Getty Images

Catch up quick: Getty in June scrapped a $3.7 billion agreement to buy rival Shutterstock, after U.K. antitrust regulators insisted that Getty divest Shutterstock's editorial business.

• Getty then hired Guggenheim Securities to explore strategic alternatives. Three months later, its shares were delisted from the NYSE.

By the numbers: Koch and members of the Getty family will invest $533 million in equity, while lenders agreed to retire around $270 million of outstanding debt.

Go deeper, via Bloomberg: "The company was founded in 1995 by Mark Getty, an heir to the Getty Oil fortune, and South African businessman Jonathan Klein. Through a series of acquisitions and partnerships it came to control some of the most iconic photographic images of all time."