LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionCincinnati Financial Corp
Latest Disclosed Ownership121,991 shares
Latest Disclosed Value $ 9,827,595
Cincinnati Financial Corp ownership in LYB / LyondellBasell Industries N.V.

On May 11, 2026 - Cincinnati Financial Corp filed a 13F-HR form disclosing ownership of 121,991 shares of LyondellBasell Industries N.V. (US:LYB) valued at $9,827,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 121,991 shares of LyondellBasell Industries N.V.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $7,868,420 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 121,991 0 0.00 9,828 86.05 0.1980
2026-02-12 2025-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 121,991 0 0.00 5,282 -11.70 0.1031
2025-11-06 2025-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 121,991 -100,000 -45.05 5,982 -53.43 0.1184
2025-08-07 2025-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 12,844 -17.81 0.2722
2025-05-08 2025-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 15,628 -5.21 0.3489
2025-02-12 2024-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 16,487 -22.55 0.3613
2024-11-07 2024-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 21,289 0.25 0.4589
2024-08-08 2024-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 21,236 -6.47 0.4574
2024-05-03 2024-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 22,705 7.58 0.4998
2024-02-08 2023-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 21,107 0.40 0.4648
2023-11-03 2023-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 21,023 3.12 0.5075
2023-08-08 2023-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 20,385 -2.19 0.4673
2023-05-05 2023-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 20,843 13.08 0.5057
2023-02-09 2022-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 18,432 10.29 0.4638
2022-11-08 2022-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 16,711 -13.93 0.4581
2022-08-05 2022-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 19,415 -14.94 0.4950
2022-05-12 2022-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 22,825 11.48 0.5062
2022-02-11 2021-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 20,474 -1.73 0.4289
2021-11-05 2021-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 20,834 -8.77 0.5116
2021-08-06 2021-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 22,836 -1.13 0.5576
2021-05-06 2021-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 23,098 13.51 0.5990
2021-02-12 2020-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 0 0.00 20,348 30.04 0.5521
2020-11-06 2020-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 221,991 44,000 24.72 15,648 33.77 0.4770
2020-08-06 2020-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 177,991 0 0.00 11,698 32.42 0.3924
2020-05-08 2020-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 177,991 49,000 37.99 8,834 -27.51 0.3537
2020-02-11 2019-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 128,991 0 0.00 12,187 5.60 0.3973
2019-11-05 2019-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 128,991 0 0.00 11,541 3.88 0.4118
2019-08-07 2019-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 128,991 44,000 51.77 11,110 55.47 0.4069
2019-05-03 2019-03-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 84,991 0 0.00 7,146 1.10 0.2885
2019-02-11 2018-12-31 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 84,991 0 0.00 7,068 -18.87 0.3166
2018-11-06 2018-09-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 84,991 0 0.00 8,712 -6.68 0.3389
2018-08-13 2018-06-30 13F LYONDELLBASELL INDUSTRIES CL A ORD COMMON N53745100 84,991 20,000 30.77 9,336 35.93 0.3967
2018-05-10 2018-03-31 13F LYONDELLBASELL COMMON N53745100 64,991 14,991 29.98 6,868 24.51 0.2992
2018-02-13 2017-12-31 13F LYONDELLBASELL COMMON N53745100 50,000 0 0.00 5,516 11.37 0.2426
2017-11-03 2017-09-30 13F LYONDELLBASELL COMMON N53745100 50,000 0 0.00 4,953 17.37 0.2250
2017-08-08 2017-06-30 13F LYONDELLBASELL COMMON N53745100 50,000 0 0.00 4,220 -7.46 0.2000
2017-05-08 2017-03-31 13F LYONDELLBASELL COMMON N53745100 50,000 0 0.00 4,560 6.32 0.2220
2017-02-15 2016-12-31 13F LYONDELLBASELL COMMON N53745100 50,000 0 0.00 4,289 6.35 0.2342
2016-11-07 2016-09-30 13F LYONDELLBASELL COMMON N53745100 50,000 45,000 900.00 4,033 984.14 0.2238
2016-08-09 2016-06-30 13F LYONDELLBASELL COMMON N53745100 5,000 5,000 372 0.0210
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.