UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: September 30, 2004 Check here if Amendment [ ]; Amendment Number: ____________ This Amendment (Check only one.): [ ] is a restatement [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Cincinnati Insurance Company Address: 6200 South Gilmore Road Fairfield, Ohio 45014 13F File Number: 028-10753 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing the Report on Behalf of Reporting Manager: Name: Kenneth W. Stecher Title: Chief Financial Officer Phone: (513) 870-2626 Signature, Place and Date of Signing: /s/ Kenneth W. Stecher Fairfield, Ohio November 10, 2004 - ---------------------- ------------------ --------------------- Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) List of other Managers Reporting for this Manager: N/A 1

FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers 1 ---------- Form 13F Information Table Entry Total: 38 ---------- Form 13F Information Table Value Total: 4,126,638 ---------- List of Other Included Managers: 01 Cincinnati Financial Corporation 13F File No. 028-10798 ---------- 2

COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 TITLE OF CLASS CUSIP FMV (000) SHARES SH/PRN PUT/CALL -------------- --------- -------- -------- ------ -------- ALLIANCE CAPITAL MGMT HLDG LTD PART Common 01855A101 72,725 2,048,600 SH ALLTEL CORP Common 020039103 234,801 4,276,110 SH BB & T CORP Common 054937107 7,493 188,800 SH CAMDEN PROPERTY TRUST Common 133131102 4,620 100,000 SH CHEVRONTEXACO CORPORATION Common 166764100 38,406 716,000 SH CINERGY CORP Common 172474108 41,778 1,055,000 SH COMMERCIAL NET LEASE REALTY Common 202218103 4,828 265,000 SH CONOCOPHILLIPS Common 20825C104 14,499 175,000 SH DEVELOPERS DIVERSIFIED REALTY Common 251591103 1,958 50,000 SH EQUITABLE RESOURCES INC Common 294549100 16,293 300,000 SH EQUITY RESIDENTIAL PROPS Common 29476L107 12,646 407,934 SH EXXON MOBIL CORPORATION Common 30231G102 305,446 6,320,000 SH FIFTH THIRD BANCORP Common 316773100 2,123,171 43,136,352 SH FIRST FINANCIAL BANCORP Common 320209109 1,547 90,586 SH FORTUNE BRANDS INC Common 349631101 20,375 275,000 SH GENERAL ELECTRIC CO. Common 369604103 27,704 825,000 SH GENUINE PARTS CO Common 372460105 21,877 570,000 SH GLIMCHER REALTY TRUST Common 379302102 2,430 100,000 SH HILLENBRAND INDUSTRIES Common 431573104 29,125 576,400 SH HUNTINGTON BANCSHARES INC Common 446150104 1,589 63,800 SH JEFFERSON PILOT CORP Common 475070108 6,208 125,000 SH JOHNSON & JOHNSON Common 478160104 78,862 1,400,000 SH LINCOLN NATIONAL CORP Common 534187109 10,039 213,600 SH MEDTRONIC INC Common 585055106 10,380 200,000 SH NATIONAL CITY CORPORATION Common 635405103 271,306 7,025,000 SH NEW PLAN EXCEL RLTY TRUST INC Common 648053106 10,877 435,095 SH PNC FINANCIAL SERVICES GROUP Common 693475105 97,921 1,810,000 SH PFIZER INC Common 717081103 4,284 140,000 SH PIEDMONT NATURAL GAS Common 720186105 65,602 1,493,000 SH PROCTER & GAMBLE CORPORATION Common 742718109 250,576 4,630,000 SH SIMON PROPERTY GROUP INC Common 828806109 10,726 200,000 SH SKY FINANCIAL GROUP INC Common 83080P103 23,126 925,050 SH STANDARD REGISTER CO Common 853887107 983 93,600 SH SYSCO CORP Common 871829107 209 7,000 SH TANGER FCTRY OUTLET Common 875465106 9,099 203,200 SH U S BANCORP Common 902973304 87,831 3,039,120 SH WELLS FARGO & CO Common 949746101 82,438 1,382,500 SH WYETH Common 983024100 122,859 3,285,000 SH 4,126,638 88,146,747 3

COLUMN 6 COLUMN 7 COLUMN 8 ISSUER INVESTMENT DIS OTH MGRS SOLE SHARED NONE ------ -------------- -------- -------- --------- ---- ALLIANCE CAPITAL MGMT HLDG LTD PART Shared 01 - 2,048,600 - ALLTEL CORP Shared 01 - 4,276,110 - BB & T CORP Shared 01 - 188,800 - CAMDEN PROPERTY TRUST Shared 01 - 100,000 - CHEVRONTEXACO CORPORATION Shared 01 - 716,000 - CINERGY CORP Shared 01 - 1,055,000 - COMMERCIAL NET LEASE REALTY Shared 01 - 265,000 - CONOCOPHILLIPS Shared 01 - 175,000 - DEVELOPERS DIVERSIFIED REALTY Shared 01 - 50,000 - EQUITABLE RESOURCES INC Shared 01 - 300,000 - EQUITY RESIDENTIAL PROPS Shared 01 - 407,934 - EXXON MOBIL CORPORATION Shared 01 - 6,320,000 - FIFTH THIRD BANCORP Shared 01 - 43,136,352 - FIRST FINANCIAL BANCORP Shared 01 - 90,586 - FORTUNE BRANDS INC Shared 01 - 275,000 - GENERAL ELECTRIC CO. Shared 01 - 825,000 - GENUINE PARTS CO Shared 01 - 570,000 - GLIMCHER REALTY TRUST Shared 01 - 100,000 - HILLENBRAND INDUSTRIES Shared 01 - 576,400 - HUNTINGTON BANCSHARES INC Shared 01 - 63,800 - JEFFERSON PILOT CORP Shared 01 - 125,000 - JOHNSON & JOHNSON Shared 01 - 1,400,000 - LINCOLN NATIONAL CORP Shared 01 - 213,600 - MEDTRONIC INC Shared 01 - 200,000 - NATIONAL CITY CORPORATION Shared 01 - 7,025,000 - NEW PLAN EXCEL RLTY TRUST INC Shared 01 - 435,095 - PNC FINANCIAL SERVICES GROUP Shared 01 - 1,810,000 - PFIZER INC Shared 01 - 140,000 - PIEDMONT NATURAL GAS Shared 01 - 1,493,000 - PROCTER & GAMBLE CORPORATION Shared 01 - 4,630,000 - SIMON PROPERTY GROUP INC Shared 01 - 200,000 - SKY FINANCIAL GROUP INC Shared 01 - 925,050 - STANDARD REGISTER CO Shared 01 - 93,600 - SYSCO CORP Shared 01 - 7,000 - TANGER FCTRY OUTLET Shared 01 - 203,200 - U S BANCORP Shared 01 - 3,039,120 - WELLS FARGO & CO Shared 01 - 1,382,500 - WYETH Shared 01 - 3,285,000 - 88,146,747 4

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