LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionPerpetual Ltd
Latest Disclosed Ownership7,163 shares
Latest Disclosed Value $ 577,051
Perpetual Ltd reports 20.12% increase in ownership of LYB / LyondellBasell Industries N.V.

On April 14, 2026 - Perpetual Ltd filed a 13F-HR form disclosing ownership of 7,163 shares of LyondellBasell Industries N.V. (US:LYB) valued at $577,051 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 5,963 shares of LyondellBasell Industries N.V.. This represents a change in shares of 20.12% during the quarter. The current value of the position is $474,047 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)
2026-04-14 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 7,163 1,200 20.12 577 123.64 0.0044
2026-01-20 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,963 0 0.00 258 -11.64 0.0037
2025-10-10 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,963 5,963 292 0.0036
2025-07-11 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -6,000 -100.00 0 -100.00
2025-04-24 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,000 0 0.00 422 -5.17 0.0051
2025-01-17 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,000 -51 -0.84 446 -23.28 0.0052
2024-10-09 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,051 51 0.85 580 1.22 0.0063
2024-07-30 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,000 1,100 22.45 574 13.69 0.0062
2024-04-16 2024-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,900 0 0.00 504 8.39 0.0049
2024-04-10 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,900 0 504 0.0031
2024-02-15 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,900 0 0.00 466 0.22 0.0048
2023-10-10 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,900 -39,719 -89.02 464 -88.67 0.0048
2023-07-13 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 44,619 -3,585 -7.44 4,097 -9.46 0.0351
2023-05-08 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 48,204 42,414 732.54 4,526 1,009.07 0.0392
2020-12-08 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 5,790 408 0.0294
2020-12-08 2020-03-31 13F/A-1 LyondellBasell Industries SHS - A - N53745100 0 -5,790 -100.00 0 -100.00
2020-02-12 2019-12-31 13F LyondellBasell Industries SHS - A - N53745100 5,790 0 0.00 546 5.41 0.0811
2019-10-10 2019-09-30 13F LyondellBasell Industries SHS - A - N53745100 5,790 0 0.00 518 3.81 0.0797
2019-07-30 2019-06-30 13F LyondellBasell Industries SHS - A - N53745100 5,790 0 0.00 499 2.46 0.0795
2019-05-06 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 0 0.00 487 2.10 0.0704
2019-02-08 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 0 0.00 477 -19.70 0.0716
2018-10-30 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 0 0.00 594 -6.75 0.0798
2018-07-23 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 0 0.00 637 4.08 0.0775
2018-04-18 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 0 0.00 612 -5.12 0.0834
2018-02-12 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,790 -1,000 -14.73 645 -3.15 0.0834
2017-11-01 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,790 0 0.00 666 16.23 0.0929
2017-09-26 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,790 0 0.00 573 -5.45 0.0448
2017-09-26 2017-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,790 0 0.00 606 4.12 0.0602
2017-09-26 2016-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,790 0 0.00 582 6.20 0.0887
2017-09-26 2016-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,790 -8,428 -55.38 548 -51.63 0.0449
2017-09-26 2016-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15,218 1,300 9.34 1,133 -4.87 0.1127
2017-09-26 2016-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,918 2,400 20.84 1,191 18.98 0.1208
2017-09-26 2015-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,518 500 4.54 1,001 9.04 0.1118
2017-09-26 2015-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,018 1,200 12.22 918 -9.65 0.1091
2017-09-26 2015-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 9,818 -1,800 -15.49 1,016 -0.39 0.1166
2017-09-26 2015-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,618 0 0.00 1,020 10.63 0.1149
2017-09-26 2014-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,618 3,600 44.90 922 5.86 0.1085
2017-09-26 2014-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,018 -1,000 -11.09 871 -1.14 0.0940
2017-09-26 2014-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 9,018 1,500 19.95 881 31.69 0.0777
2017-09-26 2014-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 7,518 -14,136 -65.28 669 -61.51 0.0982
2017-09-26 2013-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 21,654 -1,606 -6.90 1,738 2.00 0.2286
2017-09-26 2013-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 23,260 3,590 18.25 1,704 30.28 0.2395
2017-09-26 2013-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 19,670 0 0.00 1,308 5.06 0.1966
2017-09-25 2013-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 19,670 19,670 1,245 0.1771
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.