Q2 2026 13F · SEC CIK 1426763

Cincinnati Specialty Underwriters Insurance CO

Insurance companyFiled 2026-08-06 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $449.0M
Reported positions: 45
Top holdings a year, 3 yrs: +27.2%
Average holding period: 10.0 yrs

Cincinnati Specialty Underwriters Insurance CO is an insurance company that reported 45 positions worth $449.0M in its Q2 2026 13F, filed 2026-08-06. Its largest holdings were Apple Inc (AAPL, 16.3%), Broadcom Inc (AVGO, 14.6%), Enbridge Inc (ENB, 5.4%). A portfolio copying its top holdings returned 27.2% a year over the last 3 years, against 20.4% for the S&P 500.

Cincinnati Specialty Underwriters Insurance CO holdings all 45 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Cincinnati Specialty Underwriters Insurance CO 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
AAPLApple Inc	16.3%	15.6%	253,080	+0.0%	$73.2M
AVGOBroadcom Inc	14.6%	13.7%	174,118	-4.5%	$65.8M
ENBEnbridge Inc	5.4%	5.8%	443,664	+0.0%	$24.1M
MSFTMicrosoft Corp	5.0%	5.4%	60,000	+0.0%	$22.4M
CSCOCisco Sys Inc	3.4%	2.4%	129,500	+0.0%	$15.2M
ADIAnalog Devices Inc	3.3%	2.9%	37,300	+0.0%	$14.8M
OCOwens Corning New	3.0%	2.2%	83,700	+0.0%	$13.3M
LRCXLam Research Ord	2.7%	1.4%	27,830	+0.0%	$12.1M
VLOValero Energy Corp	2.6%	2.6%	44,133	+0.0%	$11.5M
ABBVAbbvie Inc	2.5%	2.4%	45,200	+0.0%	$11.4M
HDHome Depot Inc	2.5%	2.6%	32,000	+0.0%	$11.3M
WECWec Energy Group Inc	2.5%	2.7%	95,000	+0.0%	$11.1M
UNHUnitedhealth Group Inc	2.4%	1.7%	26,000	+0.0%	$10.8M
ADPAutomatic Data Processing in	2.3%	2.3%	47,000	+0.0%	$10.5M
MCHPMicrochip Technology Inc.	2.3%	1.8%	115,000	+0.0%	$10.5M
RPMRpm Intl Inc	2.0%	1.9%	80,000	+0.0%	$8.9M
AJGGallagher Arthur J & Co	1.8%	1.9%	35,671	+0.0%	$8.2M
TMOThermo Fisher Scientific Inc	1.8%	1.9%	15,800	+0.0%	$7.9M
MMM3m Co	1.4%	1.4%	40,100	+0.0%	$6.5M
PLDPrologis Inc	1.4%	1.5%	47,325	+0.0%	$6.4M
MDLZMondelez International	1.3%	1.5%	104,700	+0.0%	$6.1M
MRSHMarsh & Mclennan Cos	1.3%	1.5%	35,826	+0.0%	$6.0M
PMPhilip Morris Intl Inc	1.3%	1.3%	32,620	+0.0%	$5.9M
TJXTjx Cos Inc New	1.2%	1.4%	37,000	+0.0%	$5.6M
PGProcter & Gamble Co	1.2%	1.3%	37,700	+0.0%	$5.5M
SNASnap on Inc	1.2%	1.2%	13,500	+0.0%	$5.4M
ABTAbbott Laboratories	1.2%	0.7%	57,200	+110.3%	$5.2M
ARESAres Management Corp	1.1%	1.2%	45,315	+0.0%	$5.0M
SSBSouthstate Bk Corp	1.1%	1.1%	50,000	+0.0%	$5.0M
RTXRtx Corporation	1.1%	1.2%	26,000	+0.0%	$4.9M
AMTAmerican Tower Corp	1.1%	1.3%	30,000	+0.0%	$4.9M
USBUS Bancorp	1.1%	1.0%	78,500	+0.0%	$4.7M
RFRegions Financial Corp New	1.0%	1.0%	153,033	+0.0%	$4.6M
NEENextera Energy Inc	1.0%	1.1%	50,000	+0.0%	$4.4M
APDAir Products and Chemicals I	0.8%	0.9%	13,000	+0.0%	$3.8M
ACNAccenture PLC Ireland	0.7%	1.2%	25,000	+0.0%	$3.1M
MCDMcdonalds Corp	0.7%	0.9%	11,500	+0.0%	$3.1M
HASHasbro Inc	0.6%	0.7%	30,000	+0.0%	$2.5M
VZVerizon Communications Inc	0.3%	0.4%	30,000	+0.0%	$1.3M
ADCAgree Rlty Corp	0.3%	0.3%	16,500	+0.0%	$1.2M
CMCSAComcast Corp New	0.3%	0.3%	50,000	+0.0%	$1.2M
PNWPinnacle West Cap Corp	0.2%	0.2%	9,720	+0.0%	$1.0M
WALWestern Alliance Bancorp	0.2%	0.2%	11,895	+0.0%	$978K
PEPPepsico Inc	0.2%	0.3%	7,000	+0.0%	$948K
LYBLyondellbasell Industries NV	0.1%	0.2%	12,333	+0.0%	$649K

What Cincinnati Specialty Underwriters Insurance CO bought and sold in Q2 2026, against Q1 2026.

New positions

No new positions among the largest holdings.

Added to

ABT Abbott Laboratories+110.3% shares

Reduced

No position shrank by more than 5%.

Sold out

JPM Jpmorgan Chase & Cowas 3.3%

Share counts compared with the Q1 2026 13F; a split also changes share counts.

How the holdings did against the S&P 500.

1 year: +26.5% /yr; S&P 500 +20.1%
3 years: +27.2% /yr; S&P 500 +20.4%
5 years: +16.6% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$449.0M	45
Q1 2026	$411.6M	46
Q4 2025	$433.5M	38
Q3 2025	$427.9M	37
Q2 2025	$380.5M	37
Q1 2025	$332.8M	37
Q4 2024	$363.7M	37
Q3 2024	$340.0M	39
Q2 2024	$332.9M	41
Q1 2024	$318.0M	40
Q4 2023	$301.8M	38
Q3 2023	$262.2M	38

Questions about Cincinnati Specialty Underwriters Insurance CO's portfolio

What stocks does Cincinnati Specialty Underwriters Insurance CO own?

Cincinnati Specialty Underwriters Insurance CO's latest 13F, for Q2 2026 and filed Aug 6, 2026, lists 45 positions worth $449.0M. The largest are Apple Inc (AAPL) at 16.3%, Broadcom Inc (AVGO) at 14.6%, Enbridge Inc (ENB) at 5.4%, Microsoft Corp (MSFT) at 5.0% and Cisco Sys Inc (CSCO) at 3.4%.

What did Cincinnati Specialty Underwriters Insurance CO buy last quarter?

In Q2 2026, Cincinnati Specialty Underwriters Insurance CO added Abbott Laboratories (ABT) (+110.3% shares), compared with its Q1 2026 filing.

What did Cincinnati Specialty Underwriters Insurance CO sell last quarter?

In Q2 2026, Cincinnati Specialty Underwriters Insurance CO sold all of Jpmorgan Chase & Co (JPM), compared with its Q1 2026 filing.

How has Cincinnati Specialty Underwriters Insurance CO's portfolio performed?

A portfolio copying Cincinnati Specialty Underwriters Insurance CO's 20 largest 13F holdings each quarter, from the day each filing was public, returned +27.2% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +26.5% against +20.1%. Over 5 years: +16.6% a year against +11.6%.

When is Cincinnati Specialty Underwriters Insurance CO's next 13F filing due?

13F filings are due 45 days after each quarter ends. Cincinnati Specialty Underwriters Insurance CO's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.