라이온델바젤 인더스트리 NV
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership111,535 shares
Latest Disclosed Value $ 8,985,260
Asset Management One Co., Ltd. reports 6.85% increase in ownership of LYB / LyondellBasell Industries N.V.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 111,535 shares of LyondellBasell Industries N.V. (US:LYB) valued at $8,985,260 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 104,381 shares of LyondellBasell Industries N.V.. This represents a change in shares of 6.85% during the quarter. The current value of the position is $7,381,386 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)
2026-05-08 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 111,535 7,154 6.85 8,985 98.13 0.0265
2026-01-27 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 104,381 -25,190 -19.44 4,535 -28.63 0.0126
2025-10-22 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 129,571 -29,192 -18.39 6,354 -30.83 0.0184
2025-07-31 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 158,763 35,338 28.63 9,186 5.72 0.0288
2025-04-23 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 123,425 2,587 2.14 8,689 -3.00 0.0301
2025-01-30 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 120,838 1,403 1.17 8,959 -21.78 0.0308
2024-10-30 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 119,435 -2,944 -2.41 11,454 -2.16 0.0408
2024-07-18 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 122,379 -3,514 -2.79 11,707 -9.09 0.0448
2024-05-02 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 125,893 -10,754 -7.87 12,876 -1.52 0.0496
2024-01-24 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 136,647 1,331 0.98 13,076 2.04 0.0526
2023-10-19 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 135,316 -144 -0.11 12,814 3.01 0.0571
2023-07-31 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 135,460 -2,341 -1.70 12,439 -3.86 0.0527
2023-04-25 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 137,801 -1,387 -1.00 12,938 12.12 0.0586
2023-02-06 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 139,188 -1,835 -1.30 11,539 8.69 0.0562
2022-11-04 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 141,023 -1,755 -1.23 10,616 -14.98 0.0540
2022-07-29 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 142,778 -7,253 -4.83 12,487 -19.06 0.0586
2022-05-13 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 150,031 -7,050 -4.49 15,428 6.01 0.0602
2022-02-09 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 157,081 -171 -0.11 14,554 -1.40 0.0507
2021-11-02 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 157,252 -14,659 -8.53 14,760 -16.53 0.0566
2021-08-03 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 171,911 -4,611 -2.61 17,683 -3.73 0.0658
2021-05-14 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 176,522 1,784 1.02 18,369 17.40 0.0729
2021-02-12 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 174,738 -2,355 -1.33 15,646 25.33 0.0644
2020-11-13 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 177,093 -6,446 -3.51 12,484 3.51 0.0574
2020-08-14 2020-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 183,539 -6,050 -3.19 12,061 28.19 0.0593
2020-05-14 2020-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 189,589 351 0.19 9,409 -47.38 0.0549
2020-02-14 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 189,238 -5,313 -2.73 17,880 2.74 0.0806
2019-11-14 2019-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 194,551 -19,326 -9.04 17,404 -5.53 0.0838
2019-08-14 2019-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 213,877 -14,255 -6.25 18,423 -3.95 0.0905
2019-05-15 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 228,132 -305,231 -57.23 19,180 -56.74 0.1037
2019-02-13 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 533,363 4,854 0.92 44,334 -18.18 0.1057
2018-11-14 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 528,509 6,207 1.19 54,183 -5.56 0.1112
2018-08-14 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 522,302 5,805 1.12 57,371 5.11 0.1254
2018-05-14 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 516,497 4,509 0.88 54,583 -3.36 0.1229
2018-02-14 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 511,988 -14,354 -2.73 56,483 8.33 0.1246
2017-11-14 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 526,342 503,431 2,197.33 52,139 2,597.31 0.1224
2017-08-14 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 22,911 -1,979 -7.95 1,933 -14.81 0.0049
2017-05-11 2017-03-31 13F LYONDELLBASELL INDU-CL A SHS - A - N53745100 24,890 -73,755 -74.77 2,269 -73.22 0.0060
2017-05-02 2016-12-31 13F/A-1 LYONDELLBASELL INDU-CL A SHS- A - N53745100 98,645 7,640 8.40 8,472 15.58 0.0217
2017-02-13 2016-12-31 13F LYONDELLBASELL INDU-CL A SHS - A - N53745100 98,645 8,472
2016-11-07 2016-09-30 13F LYONDELLBASELL INDU-CL A Com N53745100 91,005 7,956 9.58 7,330 19.01 0.1089
2016-08-03 2016-06-30 13F LYONDELLBASELL INDU-CL A Com N53745100 83,049 -26,687 -24.32 6,159 -34.59 0.0924
2016-05-05 2016-03-31 13F LYONDELLBASELL INDU-CL A Com N53745100 109,736 -8,635 -7.29 9,416 -9.72 0.1374
2016-01-28 2015-12-31 13F LYONDELLBASELL INDU-CL A Com N53745100 118,371 -39,037 -24.80 10,430 -19.02 0.1557
2015-11-12 2015-09-30 13F LYONDELLBASELL INDU-CL A Com N53745100 157,408 388 0.25 12,879 -19.73 0.1960
2015-08-06 2015-06-30 13F LYONDELLBASELL INDU-CL A Com N53745100 157,020 28,321 22.01 16,044 42.03 0.2223
2015-05-11 2015-03-31 13F LYONDELLBASELL INDU-CL A Com N53745100 128,699 -90,860 -41.38 11,296 -35.95 0.1395
2015-02-09 2014-12-31 13F LYONDELLBASELL INDU-CL A Com N53745100 219,559 -52,479 -19.29 17,637 -42.18 0.2289
2014-11-05 2014-09-30 13F LYONDELLBASELL INDU-CL A Com N53745100 272,038 58,397 27.33 30,504 47.04 0.4212
2014-08-12 2014-06-30 13F LYONDELLBASELL INDU-CL A Com N53745100 213,641 -30,601 -12.53 20,745 -4.09 0.3096
2014-05-05 2014-03-31 13F LYONDELLBASELL INDU-CL A Com N53745100 244,242 -48,057 -16.44 21,629 -7.24 0.3409
2014-02-05 2013-12-31 13F/A-1 LYONDELLBASELL INDU-CL A COM N53745100 292,299 -4,786 -1.61 23,318 7.03 0.3614
2014-01-29 2013-12-31 13F LYONDELLBASELL INDUSTRIES COM N53745100 292,299 23,318
2014-02-05 2013-09-30 13F/A-1 LYONDELLBASELL INDU-CL A COM N53745100 297,085 -10,542 -3.43 21,786 5.83 0.3278
2013-11-06 2013-09-30 13F LYONDELLBASELL INDU-CL A Com N53745100 297,085 21,786
2014-02-12 2013-06-30 13F/A-1 LYONDELLBASELL INDU-CL A COM N53745100 307,627 307,627 20,585 0.3343
2013-08-05 2013-06-30 13F LYONDELLBASELL INDU-CL A Com N53745100 307,627 20,585
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.