BERLIN — Lothar Lanz, chief financial officer at ProSiebenSat.1, is ankling his post after 11 years on the company’s executive board.

Lanz, 59, who overseas finance, legal affairs and human resources at the pan-European broadcasting group, will remain with the company until his successor has been appointed, most likely by summer, ProSiebenSat.1 said Thursday. Lanz’s contract was officially set to expire in June 2009.

“For more than a decade Lothar Lanz has left his mark during one of the most dynamic periods of Germany’s television history,” said Goetz Maeuser, chairman of ProSiebenSat.1’s supervisory board and a partner at Permira, which owns the TV group along with fellow private equity firm KKR.

“Being a reliable partner to the financial community, he managed both an IPO and two of the biggest mergers within the German media sector.”

Clive Hollick, supervisory board vice chairman and a KKR partner, added that Lanz had “played a key role in the creation of ProSiebenSat.1 as a leading integrated broadcaster in Europe.”

Lanz served on the managing board at HSB HYPO Service-Bank in Munich and at Nassauische Sparkasse in Wiesbaden before joining ProSieben in 1996 as CFO. He shepherded ProSieben Media through its IPO in 1997 — the first public offering of a TV company in Germany. He later oversaw the merger of ProSieben Media with Sat.1 in 2000 and ProSiebenSat.1’s takeover of SBS Broadcasting Group last year.