UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D/A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 1) TRI-COUNTY FINANCIAL CORPORATION -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK, PAR VALUE $0.01 PER SHARE -------------------------------------------------------------------------------- (Title of Class of Securities) 89456L 10 7 -------------------------------------------------------------------------------- (CUSIP Number) C. MARIE BROWN 3035 LEONARDTOWN ROAD, WALDORF, MARYLAND 20601 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) JANUARY 24, 2008 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. /_/ Page 1 of 5 ----------------------- ---------------- CUSIP No. 89546L 10 7 SCHEDULE 13D/A ----------------------- ---------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS C. MARIE BROWN -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) /_/ (b) /_/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) /_/ -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- 7 SOLE VOTING POWER 69,766 (1) NUMBER OF ----------------------------------------------------- SHARES 8 SHARED VOTING POWER 53,953 (2) BENEFICIALLY ----------------------------------------------------- OWNED BY 9 SOLE DISPOSITIVE POWER 96,766 (1) EACH ----------------------------------------------------- REPORTING 10 SHARED DISPOSITIVE POWER 53,953 (2) PERSON -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 123,719 (1) -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES /_/ -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11); 4.18% (3) -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- (1) Share amount has been adjusted to reflect the three-for-two stock splits of the common stock paid on December 29, 2005 and November 27, 2006. (2) Consists of 26,953 shares allocated to Ms. Brown's account under the Community Bank of Tri-County Employee Stock Ownership Plan (the "ESOP") and 27,000 shares held by Ms. Brown's spouse. The share amount has been adjusted to reflect the three-for-two stock splits of the common stock paid on December 29, 2005 and November 27, 2006. (3) Based on 2,955,942 shares outstanding on January 24, 2008. Page 2 of 5 The Reporting Person is filing this amendment to report that her beneficial ownership interest in has decreased below 5% of Tri-County Financial Corporation's (the "Company") issued and outstanding shares of common stock due to transactions in the Company's common stock that are disclosed under Item 5(e) below. The information required by Items 1, 4, 6 and 7 and portions of Item 3 are included in the original Schedule 13D filed by the Reporting Person with the Securities and Exchange Commission on June 22, 2005, which is incorporated herein by reference. ITEM 2. IDENTITY AND BACKGROUND ----------------------- (a) This Amendment No. 1 to Schedule 13D is being filed on behalf of C. Marie Brown. (b) Ms. Brown's residence address is 8920 Grotto Court, Pomfret, Maryland 20675. (c) On February 8, 2008, Ms. Brown retired as the Executive Vice President and Chief Operating Officer of the Company and the Company's wholly owned subsidiary, Community Bank of Tri-County (the "Bank"). She continues to serve as a director on the Boards of Directors of the Company and the Bank. The address of the Company and the Bank is 3035 Leonardtown Road, Waldorf, Maryland 20601. (d) Ms. Brown has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) during the last five years. (e) Ms. Brown has not, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction nor as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. (f) Ms. Brown is a United States citizen. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION ------------------------------------------------- Ms. Brown exercised stock options as listed below in Item 5(c) by tendering shares of common stock previously owned by Ms. Brown. The tendered shares had a fair market value of $25.00 per share as of the date of the transaction. Page 3 of 5 ITEM 5. INTEREST IN SECURITIES OF THE ISSUER ------------------------------------ (a) Ms. Brown beneficially owns 123,719 common shares, representing 4.18% of the 2,955,942 issued and outstanding shares of the Company's common stock. (b) Ms. Brown has sole voting and dispositive power over 69,766 shares. Ms. Brown shares voting and dispositive power over an additional 26,953 shares allocated to her ESOP account and over 27,000 shares held by her spouse. (c) Ms. Brown has effected the following transactions in the common stock of the Company during the past 60 days: PRICE PER NUMBER OF SHARE/ DATE TYPE OF TRANSACTION SHARES EXERCISE PRICE ---- ------------------- ------ -------------- 1/24/08 Stock Option Exercise 8,437 $ 7.85 1/24/08 Stock Option Exercise 8,208 12.74 1/24/08 Stock Option Exercise 11,585 15.89 1/24/08 Stock Option Exercise 3,705 7.91 1/24/08 Stock Option Exercise 3,375 7.88 1/24/08 Stock Option Exercise 3,375 11.56 1/24/08 Stock Option Exercise 5,555 22.29 1/24/08 Stock Option Exercise 13,314 7.20 1/24/08 Tender of Shares in Payment for 26,780 25.00 Shares Underlying Stock Options (d) Not applicable. (e) Ms. Brown ceased to be the beneficial owner of more than five percent of the common stock of the Company on January 24, 2008. Page 4 of 5 SIGNATURE --------- After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 25, 2008 By: /s/ C. Marie Brown ------------------------------- C. Marie Brown Page 5 of 5