LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership18,494 shares
Latest Disclosed Value $ 1,489,877
Mackenzie Financial Corp reports 18.12% decrease in ownership of LYB / LyondellBasell Industries N.V.

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 18,494 shares of LyondellBasell Industries N.V. (US:LYB) valued at $1,489,877 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 22,586 shares of LyondellBasell Industries N.V.. This represents a change in shares of -18.12% during the quarter. The current value of the position is $1,223,933 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 18,494 -4,092 -18.12 1,490 51.32 0.0018
2026-02-18 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 22,586 -105,763 -82.40 984 -84.37 0.0012
2025-11-13 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 128,349 -367 -0.29 6,294 -15.48 0.0076
2025-08-13 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 128,716 63,209 96.49 7,448 61.51 0.0096
2025-05-07 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 65,507 4,748 7.81 4,612 2.19 0.0066
2025-05-02 2024-12-31 13F/A-2 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 60,759 2,686 4.63 4,513 -18.98 0.0061
2025-02-20 2024-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 60,759 2,686 4,513 0.0059
2025-02-14 2024-12-31 13F LyondellBasell Industries Common Stock N53745100 60,759 2,686 4,375 0.0063
2024-11-13 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 58,073 739 1.29 5,569 1.55 0.0077
2024-08-14 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 57,334 -18,736 -24.63 5,485 -29.51 0.0081
2024-05-10 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 76,070 7,228 10.50 7,780 18.87 0.0112
2024-01-30 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 68,842 11,724 20.53 6,545 22.18 0.0099
2023-10-25 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 57,118 480 0.85 5,357 2.14 0.0090
2023-08-03 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56,638 -627 -1.09 5,245 -2.44 0.0080
2023-04-24 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 57,265 57,265 5,377 0.0083
2023-02-14 2022-12-31 13F LyondellBasell Industries Common Stock N53745100 0 -61,979 -100.00 0 -100.00
2022-10-07 2022-09-30 13F LyondellBasell Industries Common Stock N53745100 61,979 -27,509 -30.74 4,666 -40.39 0.0080
2022-08-10 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 89,488 36,042 67.44 7,827 42.44 0.0125
2022-05-13 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,446 1,673 3.23 5,495 15.08 0.0074
2022-02-14 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 51,773 -303 -0.58 4,775 -2.29 0.0064
2021-11-08 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 52,076 4,866 10.31 4,887 0.64 0.0069
2021-08-11 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 47,210 643 1.38 4,856 0.23 0.0068
2021-05-14 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 46,567 -23,051 -33.11 4,845 -24.07 0.0074
2021-02-10 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 69,618 -7,577 -9.82 6,381 17.28 0.0138
2020-11-13 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 77,195 28,804 59.52 5,441 71.10 0.0135
2020-08-13 2020-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 48,391 -7,915 -14.06 3,180 13.82 0.0085
2020-05-14 2020-03-31 13F LYONDELLBASELL INDUSTRIES N COM N53745100 56,306 -51,197 -47.62 2,794 -72.49 0.0090
2020-02-13 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 107,503 -12,502 -10.42 10,157 -5.40 0.0250
2019-11-14 2019-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 120,005 63,802 113.52 10,737 121.79 0.0282
2019-08-23 2019-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56,203 -189,469 -77.12 4,841 -76.56 0.0125
2019-08-14 2019-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56,203 -189,469 4,841
2019-05-15 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 245,672 34,093 16.11 20,656 17.40 0.0498
2019-02-06 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 211,579 -127,223 -37.55 17,595 -49.34 0.0463
2018-11-15 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 338,802 67,249 24.76 34,731 16.43 0.0845
2018-08-13 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 271,553 -1,961 -0.72 29,830 3.20 0.0761
2018-05-14 2018-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 273,514 68,970 33.72 28,905 28.10 0.0737
2018-05-14 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 273,514 28,905
2018-02-13 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 204,544 5,561 2.79 22,565 14.49 0.0545
2017-11-13 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 198,983 -30,665 -13.35 19,709 1.70 0.1063
2017-08-14 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 229,648 162,894 244.02 19,380 218.38 0.1079
2017-05-25 2017-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 66,754 17,426 35.33 6,087 43.87 0.0356
2017-05-12 2017-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 66,754 6,087
2017-02-14 2016-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 49,328 36,073 272.15 4,231 295.79 0.0253
2016-11-15 2016-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,255 0 0.00 1,069 8.42 0.0067
2016-08-12 2016-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,255 5,130 63.14 986 41.87 0.0056
2016-05-12 2016-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,125 -1,755 -17.76 695 -19.09 0.0063
2016-02-12 2015-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 9,880 -31,900 -76.35 859 -75.34 0.0053
2015-11-13 2015-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 41,780 30,175 260.02 3,483 190.01 0.0211
2015-08-13 2015-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,605 -3,319 -22.24 1,201 -8.32 0.0065
2015-05-13 2015-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 14,924 748 5.28 1,310 16.44 0.0069
2015-02-11 2014-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 14,176 10,846 325.71 1,125 210.77 0.0057
2014-11-12 2014-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,330 -90,844 -96.46 362 -96.06 0.0018
2014-08-11 2014-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 94,174 -22,655 -19.39 9,196 -11.50 0.0428
2014-05-14 2014-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 116,829 1,452 1.26 10,391 12.19 0.0509
2014-02-11 2013-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 115,377 10,015 9.51 9,262 20.04 0.0468
2014-02-03 2013-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 115,377 9,262
2013-11-12 2013-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 105,362 -468,607 -81.64 7,716 -79.71 0.0391
2013-08-20 2013-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 573,969 573,969 38,031 0.1814
2013-08-09 2013-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 573,969 38,031 0.1820
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.