FILE PHOTO: CEO Christian Sewing delivers a speech during the annual shareholder meeting of Germany’s largest business bank, Deutsche Bank, in Frankfurt, Germany, May 23, 2019. REUTERS/Kai Pfaffenbach/File Photo

FRANKFURT (Reuters) - Deutsche Bank DBKGn.DE Chief Executive Officer Christian Sewing is planning to invest a quarter of his fixed salary in the bank's shares, a person with knowledge of the matter said on Tuesday.

Sewing announced plans to invest a “substantial amount” in the bank on Monday but the exact amount had been unclear.

Sewing, unveiling a broad restructuring of the bank and on an investor roadshow this week, said he wanted to put his money where his mouth was.