United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) John Hancock Patriot Select Dividend Trust (Name of Issuer) Common Stock (Title of Class of Securities) 41013U-10-2 (CUSIP Number) The Commerce Group, Inc. 211 Main Street Webster, MA 01570 (508) 943-9000 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) May 28, 2003 (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 which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box: [X] The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Page 1 of 7 CUSIP No.: 41013U-10-2 THE COMMERCE GROUP, INC. SCHEDULE 13D AMENDMENT No. 5 JUNE 9, 2003 1. NAME OF REPORTING PERSON S.S. OR I.R.S. ID NO. OF ABOVE PERSON The Commerce Group Inc. ID# 04-2599931 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS [WC] 5 CHECK BOX IF DISCLOSURE OF LEGAL [ ] PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) 6. CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH SOLE VOTING POWER 3,503,400 SHARED VOTING POWER 0 SOLE DISPOSITIVE POWER 3,503,400 SHARED DISPOSITIVE POWER 0 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,503,400 12. CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES [ ] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 35.3% 14. TYPE OF REPORTING PERSON [HC] Page 2 of 7 CUSIP No.: 41013U-10-2 THE COMMERCE GROUP, INC. SCHEDULE 13D AMENDMENT No. 5 JUNE 9, 2003 ITEM 1. SECURITY AND ISSUER This Schedule 13D relates to the shares of beneficial interest (the "Shares"), of John Hancock Patriot Select Dividend Trust (the "Fund"), a Massachusetts business trust registered as an investment company under the Investment Company Act of 1940, as amended (the "Investment Company Act"). The principal executive offices of the Fund are located at 101 Huntington Avenue, Boston, MA, 02119-7603. ITEM 2. IDENTITY AND BACKGROUND (a) - (f) This Schedule 13D is being filed by The Commerce Group Inc. (the "Reporting Person"), a corporation formed under the laws of Massachusetts. The Reporting Person is a corporation whose principal offices are located at 211 Main Street Webster, MA 01570. No material changes have taken place with respect to director or officer information of the Reporting Person. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION The source of the funds used by the Reporting Person to purchase Shares listed in Item 5(a) was working capital. The amount of the funds used to purchase such shares reported in Annex A aggregated approximately $277,271. ITEM 4. PURPOSE OF TRANSACTION No material change has taken place since the previous filing. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER (a) The Fund's reports with the Securities and Exchange Commission report that 9,925,193 Shares are outstanding. Based upon such number, the Reporting Person beneficially owns 35.3% of the Fund's outstanding Shares. (b) The Reporting Person is the beneficial owner (through its insurance subsidiaries as listed below) of 3,503,400 Shares, over which it has sole power of disposition and voting. Such number of Shares represents approximately 35.3% of the outstanding Shares. Shares Cost The Commerce Insurance Company 3,241,600 $45,061,811 American Commerce Insurance Company 186,100 2,355,422 Commerce West Insurance Company 75,700 1,096,559 Totals 3,503,400 $48,513,792 Page 3 of 7 CUSIP No.: 41013U-10-2 THE COMMERCE GROUP, INC. SCHEDULE 13D AMENDMENT No. 5 JUNE 9, 2003 (c) During the period from April 16, 2002 through May 28, 2003 the Reporting Person has effected the following purchases and sales in the shares of Common Stock, all of which were made on the New York Stock Exchange (see attached Annex A). All transactions prior to April 16, 2002 were reported on previous Schedule 13D filings. (d) No person other than the Reporting Person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of Common Stock owned by the Reporting Person. (e) It is inapplicable to state the date on which the Reporting Person ceased to be the beneficial owner of more than five percent of the Common Stock. ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER The Reporting Person does not have any contract, arrangement, understanding or relationship (legal or otherwise) with any person with respect to any securities of the Fund, including, but not limited to, the transfer or voting of any such securities, finders' fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies. ITEM 7. MATERIAL TO BE FILED AS EXHIBITS Annex A Item 5(c) Information Page 4 of 7 CUSIP No.: 41013U-10-2 THE COMMERCE GROUP, INC. SCHEDULE 13D AMENDENT No. 5 JUNE 9, 2003 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. June 9, 2003 THE COMMERCE GROUP INC. Gerald Fels Executive Vice President & Chief Financial Officer Page 5 of 7 ANNEX A Item 5 (c) - Information DIV - JOHN HANCOCK PATRIOT SELECT 41013U-10-2 FROM 04/16/02 - 05/28/03 COMMERCE INSURANCE COMPANY Purchases TRADE SETTLEMENT PURCHASE PRICE ACQUISITION DATE DATE SHARES PER SHARE COST 04/16/02 04/19/02 300 $14.55 $ 4,377.00 04/19/02 04/24/02 100 14.70 1,474.00 04/25/02 04/30/02 5,600 14.65 82,264.00 05/07/02 05/10/02 1,200 14.70 17,688.00 07/22/02 07/26/02 13,200 12.95 171,468.00 COMMERCE PURCHASES TOTALS: 20,400 $277,271.00 COMMERCE INSURANCE COMPANY Sales TRADE SETTLEMENT SHARES SALE PRICE DATE DATE SOLD PER SHARE CONSIDERATION 04/17/03 04/23/03 1,000 $13.8200 $ 13,779.35 04/28/03 05/01/03 4,500 13.8527 62,154.23 04/30/03 05/05/03 200 13.8162 2,755.11 04/30/03 05/05/03 4,500 13.8162 61,989.99 05/01/03 05/06/03 600 13.8883 8,308.59 05/06/03 05/09/03 2,700 14.0481 37,820.09 05/07/03 05/12/03 1,500 13.8547 20,721.07 05/08/03 05/13/03 2,600 13.8215 35,830.21 05/08/03 05/13/03 700 13.8500 9,666.54 COMMERCE SALES TOTALS: 18,300 $253,025.18 NET COMMERCE TOTAL: (2,100) ($24,245.82) Page 6 of 7 AMERICAN COMMERCE INSURANCE COMPANY Sales TRADE SETTLEMENT SHARES SALE PRICE DATE DATE SOLD PER SHARE CONSIDERATION 01/30/03 02/04/03 400 $14.0100 $ 5,587.83 01/30/03 02/04/03 400 14.0000 5,583.83 01/30/03 02/04/03 200 14.0000 2,791.92 01/30/03 02/04/03 2,400 14.0000 33,502.99 01/30/03 02/04/03 5,800 14.0000 80,965.55 02/03/03 02/06/03 1,700 14.3000 24,241.26 04/21/03 04/24/03 3,100 13.7313 42,441.03 04/22/03 04/25/03 9,900 13.6921 135,149.44 04/23/03 04/28/03 3,400 13.6562 46,292.90 04/29/03 05/02/03 3,600 13.8153 49,588.76 05/09/03 05/14/03 5,700 13.8035 78,448.26 05/12/03 05/15/03 3,800 13.7300 52,019.55 05/13/03 05/16/03 3,500 13.7260 47,898.75 05/14/03 05/19/03 400 13.6500 5,443.74 05/16/03 05/21/03 6,000 13.5882 81,285.38 05/19/03 05/22/03 8,200 13.6068 111,242.54 05/21/03 05/23/03 3,000 13.5900 40,648.09 05/22/03 05/28/03 3,700 13.8468 51,082.76 05/27/03 05/30/03 12,500 14.0306 174,874.29 05/28/03 06/02/03 36,200 14.0935 508,712.82 AMERICAN COMMERCE TOTALS: 113,900 $1,577,801.69 NET CONSOLIDATED SALE TOTAL: 111,800 $1,553,555.87 Page 7 of 7