LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionAustralianSuper Pty Ltd
Latest Disclosed Ownership303,136 shares
Latest Disclosed Value $ 24,420,636
AustralianSuper Pty Ltd reports 61.74% decrease in ownership of LYB / LyondellBasell Industries N.V.

On May 7, 2026 - AustralianSuper Pty Ltd filed a 13F-HR form disclosing ownership of 303,136 shares of LyondellBasell Industries N.V. (US:LYB) valued at $24,420,636 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 792,283 shares of LyondellBasell Industries N.V.. This represents a change in shares of -61.74% during the quarter. The current value of the position is $19,552,272 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)
2026-05-07 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 303,136 -489,147 -61.74 24,421 -28.82 0.1273
2026-02-05 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 792,283 0 0.00 34,306 -11.71 0.1595
2025-11-12 2025-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 792,283 -575,214 -42.06 38,854 -50.90 0.1836
2025-11-03 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 792,283 -575,214 38,854 0.1782
2025-08-01 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,367,497 141,034 11.50 79,123 -8.36 0.4006
2025-05-05 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,226,463 1,698 0.14 86,343 -5.08 0.4880
2025-01-30 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,224,765 -850,469 -40.98 90,963 -54.29 0.4292
2024-10-28 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,075,234 -25,671 -1.22 199,015 -0.97 0.9919
2024-07-26 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,100,905 -78,498 -3.60 200,973 -9.66 1.1581
2024-04-26 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,179,403 29,000 1.35 222,452 8.80 1.3017
2024-01-16 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,150,403 -116,072 -5.12 204,460 -4.74 1.2277
2023-10-27 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,266,475 -275,883 -10.85 214,635 -8.07 1.3904
2023-07-28 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,542,358 -135,650 -5.07 233,465 -7.15 1.4803
2023-04-21 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,678,008 -480,864 -15.22 251,438 -5.23 1.5308
2023-02-01 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,158,872 -1,178,511 -27.17 265,314 -18.74 1.7647
2022-11-14 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,337,383 19,447 0.45 326,518 -13.54 2.3234
2022-07-13 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,317,936 -12,336 -0.28 377,647 -15.18 2.3291
2022-04-29 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,330,272 4,721 0.11 445,239 6.16 2.4184
2022-01-24 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,325,551 168,563 4.05 419,405 7.50 2.1776
2021-11-12 2021-09-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 4,156,988 132,443 3.29 390,133 -5.77 2.5029
2021-08-12 2021-06-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 4,024,545 -2,224 -0.06 414,005 -1.19 2.8887
2021-05-14 2021-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 4,026,769 477,196 13.44 418,985 28.78 3.2783
2021-02-11 2020-12-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 3,549,573 -2,474 -0.07 325,354 29.94 2.4395
2020-11-16 2020-09-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 3,552,047 1,088,449 44.18 250,384 54.65 2.1378
2020-08-13 2020-06-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 2,463,598 -515,948 -17.32 161,908 9.49 1.5701
2020-05-13 2020-03-31 13F LYONDELLBASELL INDUS SHS - A - N53745100 2,979,546 775,298 35.17 147,875 -28.99 1.8944
2020-02-10 2019-12-31 13F LYONDELLBASELL INDUS SHS - A - N53745100 2,204,248 1,921,162 678.65 208,257 722.24 1.7566
2019-11-08 2019-09-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 283,086 -126,452 -30.88 25,328 -28.20 0.2396
2019-08-13 2019-06-30 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 409,538 -130,832 -24.21 35,274 -22.36 0.3391
2019-05-14 2019-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 540,370 446,883 478.02 45,434 484.44 0.4745
2019-02-06 2018-12-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 93,487 93,487 7,774 0.1209
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.