CBCF Stock Prices FINANCIAL INFORMATION This Summary Annual Report provides an overview of Citizens’ 2003 financial results. A detailed analysis of the $35 Corporation’s results of operations and financial condition can be found in its report to the U.S. Securities and Exchange Commission on Form 10-K. To obtain Form 10-K $30 or other financial information, please contact: Charles D. Christy Chief Financial Officer $25 Citizens Banking Corporation 328 South Saginaw Street Flint, Michigan 48502-2401 Telephone: (810) 237-4200 $20 Email: [email protected] Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

ANNUAL MEETING Month end closing prices The Annual Meeting of Shareholders will be held on Thursday, April 22, 2004, at 10:00 a.m. at the Holiday Inn COMMON STOCK Gateway Centre, Flint, Michigan. Citizens Banking Corporation common stock trades on the National market tier of The Nasdaq Stock Market under the symbol: CBCF (newspaper abbreviation CitzBkg). At Credit Ratings December 31, 2003, there were 43,241,918 shares outstanding and approximately 15,158 shareholders. CITIZENS BANKING CORPORATION LONG-TERM ISSUER/SENIOR DEBT DIVIDEND REINVESTMENT PLAN Rating Agency Rating Registered shareholders can purchase additional shares of S & P BBB Citizens common stock through the Dividend Reinvestment Moody’s Baa1 Plan (the “Plan”). The Plan is administered on behalf of Fitch BBB Citizens Banking Corporation by American Stock Transfer & Trust Company. A copy of the Dividend Reinvestment Plan & SHORT-TERM/COMMERCIAL PAPER Direct Stock Purchase and Sale Plan may be requested by S & P A-2 calling American Stock Transfer at 1-877-627-7020. (Toll Free) Moody’s Prime-2 Investor Relations Contact: Fitch F2 Ryan P. Mathews SUBSIDIARIES Vice President COUNTERPARTY/DEPOSITS Citizens Banking Corporation S & P BBB+ 328 South Saginaw Street Moody’s A3 Flint, Michigan 48502-2401 Fitch BBB+ Telephone: (810) 257-2489 CBCF Email: [email protected]

MARKET MAKERS Prudential Equity Group, Inc. STOCK TRANSFER AGENT BrokerageAmerica, LLC RBC Dain Rauscher Inc. American Stock Transfer Company CIBC World Markets Corp. Robert W. & Co., Inc. 59 Maiden Lane Securities Inc. Sandler O’Neill & Partners, L.P. Plaza Level F.J. Morrissey & Co. Inc. Schwab Capital Markets L.P. New York, NY 10038 & Company , Nicolaus & Company, Inc. For assistance with transfers of stock to Howe Barnes Investments, Inc. Susquehanna Capital Group another name, lost or destroyed stock JPMSI UBS Securities LLC certificates, lost dividend checks, direct Keefe, Bruyette & Woods, Inc. William Blair & Company, LLC deposit of dividends, consolidation of Knight Equity Markets, L.P. accounts or changes of address, please McDonald Investments Inc. contact: Lynch, American Stock Transfer Pierce Fenner & Smith, Inc. toll free at (877) 627-7020, & Company, Inc. or email [email protected] NatCity Investments, Inc. Mon - Thur 8:00 a.m. - 7:00 p.m. ET Oppenheimer & Co., Inc. Recyclable Friday 8:00 a.m. - 5:00 p.m. ET

30 CITIZENS BANKING CORPORATION INFORMATION FOR SHAREHOLDERS