(Adds shares, Curanum comment)
FRANKFURT, Dec 10 (Reuters) - French care home operator Korian plans to make a takeover offer of over 100 million euros ($130 million) for German peer Curanum AG , seeking to expand in the largest European market for retirement homes.
The cash offer of 2.50 euros per share is subject to a minimum acceptance threshold of 75 percent, Korian said on Monday.
The bid represents a 14 percent premium over Curanum's closing price on Friday, when it had jumped 7 percent to its highest in more than nine months.
A Korian spokesman said the group had been in "friendly" talks with Curanum management over several months.
A Curanum spokeswoman said the company would comment later in the morning.
Based on 42.5 million outstanding shares, the bid would value Curanum at 106.3 million euros ($137.4 million).
Germany, where Curanum competes with smaller rival Marseille Kliniken, is by far the largest European market for retirement homes.
$1 = 0.7735 euros Reporting by Ludwig Burger and Alice Cannet; Editing by Mark Potter