Lyft has secured a $150m extension to a $530m series E round led by Rakuten in March, with $100m of the new funding comping from Icahn Enterprises.

US-based ride sharing service Lyft raised $150m on Friday to extend its series E round to $680m, after securing $530m in March this year from investors including internet services company Rakuten.

The extension was led by Icahn Enterprises, a diversified holding company majority-owned by investor Carl Icahn, which provided $100m, while the remaining investors remain undisclosed. Rakuten led the first series E tranche.

Lyft operates a cab hailing app similar to competitor Uber’s, aiming to make up for its smaller…