FRANKFURT, May 4 (Reuters) - The former owners of Woowa Brothers are selling shares worth about 1.25 billion euros ($1.5 billion) in Delivery Hero, which they received as part of the German online takeaway food company's 2019 acquisition of the South Korean food delivery app.

Investors including Altos, Hillhouse, Broad Street Investments, BonAngels, Greenspring and Naver are offering 9.8 million shares in an accelerated bookbuild offering, the bookrunners organizing the transaction said.

The Woowa takeover by Delivery Hero, which in December received regulatory clearance, was signed in December 2019. At the time Delivery Hero agreed to pay 1.7 billion euros in cash and 1.9 billion euros in shares based on a 20-day average share price of 47.47 euros.

Before closing, Delivery Hero's shares spiked and the value of the share consideration appreciated, leading to a heavy impairment.

Goldman Sachs and Morgan Stanley are organizing the block trade of the roughly 4% in Delivery Hero shares, out of the investor group's prior holdings of 10%.

($1 = 0.8323 euros) (Reporting by Arno Schuetze. Editing by Mark Potter)