LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionStrs Ohio
Latest Disclosed Ownership6,127 shares
Latest Disclosed Value $ 493,591
Strs Ohio reports 0.15% decrease in ownership of LYB / LyondellBasell Industries N.V.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 6,127 shares of LyondellBasell Industries N.V. (US:LYB) valued at $493,591 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 6,136 shares of LyondellBasell Industries N.V.. This represents a change in shares of -0.15% during the quarter. The current value of the position is $412,347 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)
2026-04-24 2026-03-31 13F LYONDELLBASELL INDUCL A COM_STK N53745100 6,127 -9 -0.15 494 86.04 0.0020
2026-02-02 2025-12-31 13F LYONDELLBASELL INDUCL A COM_STK N53745100 6,136 11 0.18 266 -11.67 0.0010
2025-10-30 2025-09-30 13F LYONDELLBASELL INDU-CL A COM_STK N53745100 6,125 2 0.03 300 -15.25 0.0011
2025-08-04 2025-06-30 13F LYONDELLBASELL INDU-CL A COM_STK N53745100 6,123 6,123 354 0.0013
2025-05-28 2024-12-31 13F LYONDELLBASELL INDU-CL A COM_STK N53745100 0 -54,356 -100.00 0 -100.00
2024-11-01 2024-09-30 13F LYONDELLBASELL INDU-CL A COM_STK N53745100 54,356 2,623 5.07 5,213 5.34 0.0201
2024-08-05 2024-06-30 13F LYONDELLBASELL INDU-CL A COM_STK N53745100 51,733 -1,071 -2.03 4,949 98,860.00 0.0196
2024-05-13 2024-03-31 13F LYONDELLBASELL INDUSTRIES COM_STK N53745100 52,804 33,969 180.35 5 400.00 0.0215
2024-01-30 2023-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 18,835 936 5.23 2 0.00 0.0075
2023-10-26 2023-09-30 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 17,899 -519 -2.82 2 0.00 0.0075
2023-10-26 2023-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 17,899 -519 2 0.0075
2023-07-31 2023-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 18,418 2,566 16.19 2 0.00 0.0071
2023-08-02 2023-03-31 13F/A-2 LYONDELLBASELL IND-CL A COM N53745100 15,852 -6,220 -28.18 1 0.00 0.0064
2023-08-02 2023-03-31 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 15,852 1
2023-04-27 2023-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 15,852 -6,220 1 0.0077
2023-01-26 2022-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 22,072 4,970 29.06 2 -99.92 0.0083
2022-10-27 2022-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 17,102 1,049 6.53 1,287 -8.27 0.0061
2022-07-25 2022-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 16,053 4,557 39.64 1,403 18.70 0.0063
2022-04-21 2022-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 11,496 -1,358 -10.56 1,182 -0.25 0.0043
2022-01-24 2021-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 12,854 -1,496 -10.43 1,185 -11.96 0.0041
2021-10-22 2021-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 14,350 1,121 8.47 1,346 -1.03 0.0051
2021-07-26 2021-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 13,229 2,834 27.26 1,360 25.81 0.0049
2021-04-23 2021-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 10,395 1,546 17.47 1,081 33.29 0.0041
2021-01-25 2020-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 8,849 -5,688 -39.13 811 -20.88 0.0031
2020-12-14 2020-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 14,537 4,635 46.81 1,025 57.69 0.0043
2020-07-23 2020-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 9,902 -108,410 -91.63 650 -88.93 0.0028
2020-04-23 2020-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 118,312 -65,150 -35.51 5,871 -66.13 0.0309
2020-01-24 2019-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 183,462 -10,020 -5.18 17,333 0.13 0.0726
2019-10-21 2019-09-30 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 193,482 60,259 45.23 17,310 50.86 0.0759
2019-10-21 2019-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 193,482 10,020 17,310 76,615.0201
2019-07-25 2019-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 133,223 -6,860 -4.90 11,474 -2.58 0.0510
2019-04-19 2019-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 140,083 -5,803 -3.98 11,778 -2.91 0.0534
2019-01-23 2018-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 145,886 -2,565 -1.73 12,131 -20.28 0.0616
2018-10-19 2018-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 148,451 -14,017 -8.63 15,217 -14.74 0.0667
2018-08-06 2018-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 162,468 -3,798 -2.28 17,847 1.58 0.0768
2018-04-20 2018-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 166,266 -3,316 -1.96 17,570 -6.08 0.0777
2018-01-23 2017-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 169,582 -4,693 -2.69 18,708 8.38 0.0799
2017-10-23 2017-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 174,275 -3,069 -1.73 17,261 15.33 0.0741
2017-07-26 2017-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 177,344 -7,082 -3.84 14,966 -11.01 0.0667
2017-04-26 2017-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 184,426 -15,554 -7.78 16,817 -1.96 0.0728
2017-01-24 2016-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 199,980 -7,053 -3.41 17,154 2.72 0.0756
2016-10-27 2016-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 207,033 -6,981 -3.26 16,699 4.85 0.0746
2016-07-26 2016-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 214,014 -145,700 -40.50 15,926 -48.27 0.0708
2016-04-25 2016-03-31 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 359,714 -365,923 -50.43 30,784 -51.18 0.1383
2016-01-28 2015-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 725,637 1,600 0.22 63,057 4.48 0.2820
2015-10-21 2015-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 724,037 -6,627 -0.91 60,355 -20.21 0.2871
2015-08-04 2015-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 730,664 212,241 40.94 75,638 66.18 0.3321
2015-04-27 2015-03-31 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 518,423 -3,380 -0.65 45,517 9.88 0.2007
2015-04-21 2015-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 45,517,540 44,935
2015-01-23 2014-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 521,803 -501,674 -49.02 41,426 -62.75 0.1796
2014-10-29 2014-09-30 13F/A-1 LYONDELLBASELL IND-CL A COM N53745100 1,023,477 -160,000 -13.52 111,211 -3.77 0.4911
2014-10-20 2014-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 1,023,477 111,211
2014-07-24 2014-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 1,183,477 501,017 73.41 115,567 90.40 0.5150
2014-04-28 2014-03-31 13F LYONDELLBASELL IND-CL A COM N53745100 682,460 27,500 4.20 60,698 15.44 0.2730
2014-01-30 2013-12-31 13F LYONDELLBASELL IND-CL A COM N53745100 654,960 -71,800 -9.88 52,580 -1.20 0.2364
2013-10-24 2013-09-30 13F LYONDELLBASELL IND-CL A COM N53745100 726,760 70,026 10.66 53,221 22.30 0.2346
2013-08-12 2013-06-30 13F LYONDELLBASELL IND-CL A COM N53745100 656,734 656,734 43,515 0.1871
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.