SEC FORM 13F-HR

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: Oct 31, 2018
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 09-30-2023
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 Specialty Underwriters Insurance CO
Address: 6200 South Gilmore Road
Fairfield, OH  45014
Form 13F File Number: 028-12741

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 this Report on Behalf of Reporting Manager:
Name: Steven A. Soloria
Title: Chief Investment Officer
Phone: 513-870-2000
Signature, Place, and Date of Signing:
/s/ Steven A. Soloria FairfieldOH 11-03-2023
[Signature] [City, State] [Date]
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).)
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: 262,246,617
(thousands)
List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name
1 028-10798 CINCINNATI FINANCIAL CORP

SEC FORM 13-F Information Table

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: Oct 31, 2018
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3M ORD COMMON 88579Y101 3,754,162 40,100 SH   OTR 1 0 40,100 0
ABBOTT LABORATORIES ORD COMMON 002824100 2,634,320 27,200 SH   OTR 1 0 27,200 0
ABBVIE ORD COMMON 00287Y109 4,054,432 27,200 SH   OTR 1 0 27,200 0
ACCENTURE CL A ORD COMMON G1151C101 7,677,750 25,000 SH   OTR 1 0 25,000 0
AGREE REALTY REIT ORD COMMON 008492100 911,460 16,500 SH   OTR 1 0 16,500 0
AIR PRODUCTS AND CHEMICALS ORD COMMON 009158106 3,684,200 13,000 SH   OTR 1 0 13,000 0
AMERICAN TOWER REIT COMMON 03027X100 4,933,500 30,000 SH   OTR 1 0 30,000 0
ANALOG DEVICES ORD COMMON 032654105 6,530,857 37,300 SH   OTR 1 0 37,300 0
APPLE ORD COMMON 037833100 52,732,680 308,000 SH   OTR 1 0 308,000 0
AUTOMATIC DATA PROCESSING ORD COMMON 053015103 11,307,260 47,000 SH   OTR 1 0 47,000 0
BAXTER INTERNATIONAL ORD COMMON 071813109 7,604,610 201,500 SH   OTR 1 0 201,500 0
BLACKROCK ORD COMMON 09247X101 6,464,900 10,000 SH   OTR 1 0 10,000 0
BROADCOM ORD COMMON 11135F101 32,351,091 38,950 SH   OTR 1 0 38,950 0
CHUBB ORD COMMON H1467J104 3,835,925 18,426 SH   OTR 1 0 18,426 0
CISCO SYSTEMS ORD COMMON 17275R102 4,811,520 89,500 SH   OTR 1 0 89,500 0
COMCAST CL A ORD COMMON 20030N101 2,217,000 50,000 SH   OTR 1 0 50,000 0
ENBRIDGE ORD COMMON 29250N105 14,725,208 443,664 SH   OTR 1 0 443,664 0
HASBRO ORD COMMON 418056107 1,984,200 30,000 SH   OTR 1 0 30,000 0
HOME DEPOT ORD COMMON 437076102 9,669,120 32,000 SH   OTR 1 0 32,000 0
JPMORGAN CHASE ORD COMMON 46625H100 13,486,860 93,000 SH   OTR 1 0 93,000 0
LAM RESEARCH ORD COMMON 512807108 1,744,301 2,783 SH   OTR 1 0 2,783 0
LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 1,167,935 12,333 SH   OTR 1 0 12,333 0
MCDONALD'S ORD COMMON 580135101 3,029,560 11,500 SH   OTR 1 0 11,500 0
MICROSOFT ORD COMMON 594918104 18,945,000 60,000 SH   OTR 1 0 60,000 0
MONDELEZ INTERNATIONAL CL A ORD COMMON 609207105 2,776,000 40,000 SH   OTR 1 0 40,000 0
PEPSICO ORD COMMON 713448108 1,186,080 7,000 SH   OTR 1 0 7,000 0
PINNACLE WEST ORD COMMON 723484101 716,170 9,720 SH   OTR 1 0 9,720 0
PNC FINANCIAL SERVICES GROUP ORD COMMON 693475105 1,964,320 16,000 SH   OTR 1 0 16,000 0
PROLOGIS REIT COMMON 74340W103 1,346,520 12,000 SH   OTR 1 0 12,000 0
RPM ORD COMMON 749685103 7,584,800 80,000 SH   OTR 1 0 80,000 0
RTX ORD COMMON 75513E101 1,871,220 26,000 SH   OTR 1 0 26,000 0
SNAP ON ORD COMMON 833034101 3,443,310 13,500 SH   OTR 1 0 13,500 0
TJX ORD COMMON 872540109 3,288,560 37,000 SH   OTR 1 0 37,000 0
US BANCORP ORD COMMON 902973304 2,595,210 78,500 SH   OTR 1 0 78,500 0
VALERO ENERGY ORD COMMON 91913Y100 6,254,087 44,133 SH   OTR 1 0 44,133 0
VERIZON COMMUNICATIONS ORD COMMON 92343V104 972,300 30,000 SH   OTR 1 0 30,000 0
VF ORD COMMON 918204108 337,939 19,125 SH   OTR 1 0 19,125 0
WEC ENERGY GROUP ORD COMMON 92939U106 7,652,250 95,000 SH   OTR 1 0 95,000 0
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