CIK: 0001426763
Total reported value
$411.6M
Reporting period: 2026-03-31 · Number of holdings: 46
Cincinnati Specialty Underwriters Insurance CO disclosed 46 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $411.6M and a quarterly turnover rate of 50.5%.
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Cincinnati Specialty Underwriters Insurance CO's disclosed holdings carry a Herfindahl concentration index of 0.060 — mathematically equivalent to about 17 equally-sized positions, well below its 46 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.35), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim AVGO
-53.2% -$78.4M
Trim AAPL
-17.8% -$19.5M
Add AJG
+323.2% $5.5M
Trim MSFT
0.0% -$6.8M
Add PLD
+294.4% $4.7M
Add VLO
0.0% $3.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple INC | Stock-Tech | 15.60% | -3.72% | -17.83% | |
| 2 | AVGO | Broadcom INC | Stock-Tech | 13.70% | -17.40% | -53.20% | |
| 3 | ENB | Enbridge INC | Stock-Energy | 5.84% | +0.94% | — | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 5.40% | -1.29% | — | |
| 5 | JPM | Jpmorgan Chase & Co | Stock-Financials | 3.32% | -0.14% | — | |
| 6 | ADI | Analog Devices INC | Stock-Tech | 2.88% | +0.55% | — | |
| 7 | WEC | Wec Energy Group INC | Stock-Utilities | 2.67% | +0.36% | — | |
| 8 | VLO | Valero Energy CORP | Stock-Energy | 2.65% | +0.99% | — | |
| 9 | HD | Home Depot INC | Stock-Consumer Disc | 2.56% | +0.02% | — | |
| 10 | CSCO | Cisco Systems INC | Stock-Tech | 2.44% | +0.85% | +44.69% | |
| 11 | ABBV | Abbvie INC | Stock-Healthcare | 2.39% | +0.96% | +66.18% | |
| 12 | ADP | Automatic Data Processing | Stock-Tech | 2.32% | -0.47% | — | |
| 13 | OC | Owens Corning | Stock-Industrials | 2.20% | +2.20% | NEW | |
| 14 | RPM | Rpm International INC | Stock-Materials | 1.93% | +0.01% | — | |
| 15 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 1.89% | +1.89% | NEW | |
| 16 | AJG | Arthur J Gallagher & Co | Stock-Financials | 1.88% | +1.38% | +323.24% | |
| 17 | MCHP | Microchip Technology INC | Stock-Tech | 1.80% | +1.80% | NEW | |
| 18 | UNH | Unitedhealth Group INC | Stock-Healthcare | 1.71% | +1.71% | NEW | |
| 19 | PLD | Prologis INC | Stock-Real Estate | 1.52% | +1.17% | +294.38% | |
| 20 | MRSH | Marsh & Mclennan Cos | Stock-Financials | 1.51% | +0.95% | +176.09% | |
| 21 | MDLZ | Mondelez International Inc-a | Stock-Consumer Staples | 1.47% | +0.79% | +90.36% | |
| 22 | LRCX | Lam Research Corporation | Stock-Tech | 1.44% | +1.44% | NEW | |
| 23 | TJX | Tjx Companies INC | Stock-Consumer Disc | 1.44% | +0.13% | — | |
| 24 | MMM | 3m Co | Stock-Industrials | 1.41% | -0.07% | — | |
| 25 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 1.32% | +1.32% | NEW | |
| 26 | PM | Philip Morris International | Stock-Consumer Staples | 1.31% | +1.31% | NEW | |
| 27 | AMT | American Tower CORP | Stock-Real Estate | 1.26% | +0.04% | — | |
| 28 | RTX | Rtx CORP | Stock-Industrials | 1.22% | +0.12% | — | |
| 29 | ACN | Accenture plc | Stock-Tech | 1.20% | -0.35% | — | |
| 30 | ARES | Ares Management CORP - A | Stock-Financials | 1.20% | +1.20% | NEW | |
| 31 | SNA | Snap-on INC | Stock-Industrials | 1.19% | +0.12% | — | |
| 32 | NEE | Nextera Energy INC | Stock-Utilities | 1.13% | +0.20% | — | |
| 33 | SSB | Southstate Bank CORP | Stock-Financials | 1.12% | +1.12% | NEW | |
| 34 | USB | US Bancorp | Stock-Financials | 0.99% | +0.02% | — | |
| 35 | RF | Regions Financial CORP | Stock-Financials | 0.97% | +0.42% | +72.46% | |
| 36 | APD | Air Products & Chemicals INC | Stock-Materials | 0.92% | +0.18% | — | |
| 37 | MCD | Mcdonald's CORP | Stock-Consumer Disc | 0.87% | +0.06% | — | |
| 38 | HAS | Hasbro INC | Stock-Consumer Disc | 0.68% | +0.11% | — | |
| 39 | ABT | Abbott Laboratories | Stock-Healthcare | 0.68% | -0.11% | — | |
| 40 | VZ | Verizon Communications INC | Stock-Comm Services | 0.37% | +0.09% | — | |
| 41 | CMCSA | Comcast Corp-class A | Stock-Comm Services | 0.35% | +0.01% | — | |
| 42 | ADC | Agree Realty CORP | Stock-Real Estate | 0.30% | +0.03% | — | |
| 43 | PEP | Pepsico INC | Stock-Consumer Staples | 0.26% | +0.03% | — | |
| 44 | LYB | LyondellBasell Industries N.V. | Stock-Materials | 0.24% | +0.12% | — | |
| 45 | PNW | Pinnacle West Capital | Stock-Utilities | 0.24% | +0.04% | — | |
| 46 | WAL | Western Alliance Bancorp | Stock-Financials | 0.20% | -0.03% | — |
Performance for Q3 2026
+8.3%
Performance Last 4 Quarters
+38.2%
Based on 75% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 46 | $411.6M | 50 | |
| 2025-12-31 | 38 | $433.5M | 9 | |
| 2025-09-30 | 37 | $427.9M | 27 | |
| 2025-06-30 | 37 | $380.5M | 0 | |
| 2025-03-31 | 37 | $332.8M | 100 | |
| 2024-12-31 | 37 | $363.7M | 0 | |
| 2024-09-30 | 39 | $340.0M | 0 | |
| 2024-06-30 | 41 | $332.9M | 0 | |
| 2024-03-31 | 40 | $318.0M | 0 | |
| 2023-12-31 | 38 | $301.8M | 0 | |
| 2023-09-30 | 38 | $262.2M | 0 | |
| 2023-06-30 | 38 | $273.4M | 0 | |
| 2023-03-31 | 38 | $250.8M | 0 | |
| 2022-12-31 | 38 | $237.6M | 0 | |
| 2022-09-30 | 38 | $217.7M | 0 | |
| 2022-06-30 | 38 | $232.3M | 0 | |
| 2022-03-31 | 38 | $269.0M | 0 | |
| 2021-12-31 | 38 | $286.9M | 0 | |
| 2021-09-30 | 38 | $248.5M | 0 | |
| 2021-06-30 | 38 | $245.4M | 100 | |
| 2021-03-31 | 38 | $231.0M | 10 | |
| 2020-12-31 | 37 | $216.7M | 13 | |
| 2020-09-30 | 37 | $193.0M | 13 | |
| 2020-06-30 | 38 | $182.1M | 31 | |
| 2020-03-31 | 34 | $146.9M | 24 | |
| 2019-12-31 | 33 | $183.5M | 11 | |
| 2019-09-30 | 33 | $167.0M | 9 | |
| 2019-06-30 | 33 | $162.1M | 10 | |
| 2019-03-31 | 33 | $158.6M | 16 | |
| 2018-12-31 | 33 | $138.6M | 18 | |
| 2018-09-30 | 33 | $158.2M | 11 | |
| 2018-06-30 | 32 | $148.3M | 25 | |
| 2018-03-31 | 32 | $123.1M | 14 | |
| 2017-12-31 | 31 | $119.6M | 14 | |
| 2017-09-30 | 32 | $114.1M | 7 | |
| 2017-06-30 | 32 | $109.7M | 7 | |
| 2017-03-31 | 32 | $107.0M | 31 | |
| 2016-12-31 | 29 | $91.3M | 8 | |
| 2016-09-30 | 29 | $86.9M | 7 | |
| 2016-06-30 | 29 | $83.6M | 15 | |
| 2016-03-31 | 25 | $74.6M | 13 | |
| 2015-12-31 | 25 | $71.3M | 8 | |
| 2015-09-30 | 26 | $69.5M | 11 | |
| 2015-06-30 | 26 | $75.5M | 23 | |
| 2015-03-31 | 28 | $80.9M | 10 | |
| 2014-12-31 | 28 | $85.2M | 9 | |
| 2014-09-30 | 28 | $80.0M | 12 | |
| 2014-06-30 | 29 | $81.5M | 7 | |
| 2014-03-31 | 29 | $77.5M | 8 | |
| 2013-12-31 | 28 | $73.6M | 9 | |
| 2013-09-30 | 28 | $67.3M | 6 | |
| 2013-06-30 | 28 | $65.1M | — |
Cincinnati Specialty Underwriters Insurance CO's most significant position changes for 2026-03-31: New buy: Owens Corning (OC); New buy: Thermo Fisher Scientific INC (TMO); New buy: Microchip Technology INC (MCHP); New buy: Unitedhealth Group INC (UNH); New buy: Lam Research Corporation (LRCX).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AJG | Arthur J Gallagher & Co | +1.4% | +323.24% | Add |
| 2 | PLD | Prologis INC | +1.2% | +294.38% | Add |
| 3 | VLO | Valero Energy CORP | +1% | — | Unchanged |
| 4 | ABBV | Abbvie INC | +1% | +66.18% | Add |
| 5 | MRSH | Marsh & Mclennan Cos | +1% | +176.09% | Add |
| 6 | ENB | Enbridge INC | +0.9% | — | Unchanged |
| 7 | CSCO | Cisco Systems INC | +0.9% | +44.69% | Add |
| 8 | MDLZ | Mondelez International Inc-a | +0.8% | +90.36% | Add |
| 9 | ADI | Analog Devices INC | +0.6% | — | Unchanged |
| 10 | RF | Regions Financial CORP | +0.4% | +72.46% | Add |
| 11 | WEC | Wec Energy Group INC | +0.4% | — | Unchanged |
| 12 | NEE | Nextera Energy INC | +0.2% | — | Unchanged |
| 13 | APD | Air Products & Chemicals INC | +0.2% | — | Unchanged |
| 14 | TJX | Tjx Companies INC | +0.1% | — | Unchanged |
| 15 | LYB | LyondellBasell Industries N.V. | +0.1% | — | Unchanged |
| 16 | SNA | Snap-on INC | +0.1% | — | Unchanged |
| 17 | RTX | Rtx CORP | +0.1% | — | Unchanged |
| 18 | HAS | Hasbro INC | +0.1% | — | Unchanged |
| 19 | VZ | Verizon Communications INC | +0.1% | — | Unchanged |
| 20 | MCD | Mcdonald's CORP | +0.1% | — | Unchanged |
| 21 | PNW | Pinnacle West Capital | 0% | — | Unchanged |
| 22 | AMT | American Tower CORP | 0% | — | Unchanged |
| 23 | PEP | Pepsico INC | 0% | — | Unchanged |
| 24 | ADC | Agree Realty CORP | 0% | — | Unchanged |
| 25 | HD | Home Depot INC | 0% | — | Unchanged |
| 26 | USB | US Bancorp | 0% | — | Unchanged |
| 27 | RPM | Rpm International INC | 0% | — | Unchanged |
| 28 | CMCSA | Comcast Corp-class A | 0% | — | Unchanged |
| 29 | WAL | Western Alliance Bancorp | 0% | — | Unchanged |
| 30 | MMM | 3m Co | -0.1% | — | Unchanged |
| 31 | ABT | Abbott Laboratories | -0.1% | — | Unchanged |
| 32 | JPM | Jpmorgan Chase & Co | -0.1% | — | Unchanged |
| 33 | ACN | Accenture plc | -0.4% | — | Unchanged |
| 34 | ADP | Automatic Data Processing | -0.5% | — | Unchanged |
| 35 | MSFT | Microsoft CORP | -1.3% | — | Unchanged |
| 36 | AAPL | Apple INC | -3.7% | -17.83% | Trim |
| 37 | AVGO | Broadcom INC | -17.4% | -53.20% | Trim |
| 38 | OC | Owens Corning | — | NEW | New buy |
| 39 | TMO | Thermo Fisher Scientific INC | — | NEW | New buy |
| 40 | MCHP | Microchip Technology INC | — | NEW | New buy |
| 41 | UNH | Unitedhealth Group INC | — | NEW | New buy |
| 42 | LRCX | Lam Research Corporation | — | NEW | New buy |
| 43 | PG | Procter & Gamble Co/the | — | NEW | New buy |
| 44 | PM | Philip Morris International | — | NEW | New buy |
| 45 | ARES | Ares Management CORP - A | — | NEW | New buy |
| 46 | LRCX | Lam Research CORP | — | EXIT | Sold out |
| 47 | SSB | Southstate Bank CORP | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-11 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-12 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-06 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-07 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-08 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-12 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-07 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-08 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-03 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-08 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-03 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-08 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-05 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-09 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-08 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-05 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-12 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-11 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-05 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-06 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-06 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-12 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-06 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-06 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-08 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-11 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-05 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-07 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-03 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-11 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-06 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-13 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-10 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-13 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-03 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-08 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-08 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-15 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-07 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-09 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-06 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-09 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-10 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-07 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-08 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-10 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-07 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-08 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-14 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-11 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-06 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-02 | 13F-HR | View on EDGAR |
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