LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionFiduciary Trust Co
Latest Disclosed Ownership12,787 shares
Latest Disclosed Value $ 1,030,107
Fiduciary Trust Co reports 31.58% decrease in ownership of LYB / LyondellBasell Industries N.V.

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 12,787 shares of LyondellBasell Industries N.V. (US:LYB) valued at $1,030,121 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 18,689 shares of LyondellBasell Industries N.V.. This represents a change in shares of -31.58% during the quarter. The current value of the position is $846,244 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)
2026-05-15 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 12,787 -5,902 -31.58 1,030 27.32 0.0071
2026-02-13 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 18,689 163 0.88 809 -10.90 0.0092
2025-11-14 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 18,526 -4,743 -20.38 909 -32.54 0.0103
2025-08-14 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 23,269 -3,488 -13.04 1,346 -28.52 0.0166
2025-05-15 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 26,757 -5,238 -16.37 1,884 -20.75 0.0247
2025-02-14 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 31,995 -6,887 -17.71 2,376 -36.27 0.0314
2024-11-14 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 38,882 -5,736 -12.86 3,729 -12.65 0.0521
2024-08-14 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 44,618 -4,834 -9.78 4,268 -15.60 0.0641
2024-05-14 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 49,452 -3,130 -5.95 5,058 1.16 0.0776
2024-02-12 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 52,582 -658 -1.24 4,999 -0.83 0.0835
2023-11-14 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,240 1,260 2.42 5,042 5.61 0.0922
2023-08-01 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 51,980 -1,656 -3.09 4,773 -5.20 0.0841
2023-05-15 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,636 -2,934 -5.19 5,036 7.20 0.0934
2023-02-14 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56,570 -1,856 -3.18 4,697 6.77 0.0914
2022-11-14 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 58,426 4,440 8.22 4,399 -6.84 0.0952
2022-08-12 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,986 -1,470 -2.65 4,722 -17.19 0.0995
2022-05-12 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 55,456 2,020 3.78 5,702 15.71 0.1022
2022-02-14 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,436 -3,948 -6.88 4,928 -8.50 0.0810
2021-11-12 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 57,384 932 1.65 5,386 -7.25 0.0958
2021-08-16 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56,452 2,691 5.01 5,807 3.81 0.1124
2021-05-19 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 53,761 -2,093 -3.75 5,594 9.28 0.1135
2021-01-26 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 55,854 8,431 17.78 5,119 53.13 0.1067
2020-11-13 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 47,423 -4,636 -8.91 3,343 -2.28 0.0788
2020-08-13 2020-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 52,059 784 1.53 3,421 34.42 0.0847
2020-05-15 2020-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 51,275 3,454 7.22 2,545 -43.68 0.0739
2020-02-04 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 47,821 3,772 8.56 4,519 14.67 0.1054
2019-11-12 2019-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 44,049 5,876 15.39 3,941 19.86 0.0989
2019-08-14 2019-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 38,173 5,701 17.56 3,288 20.44 0.0863
2019-05-07 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 32,472 20,076 161.96 2,730 164.79 0.0734
2019-01-29 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 12,396 -1,207 -8.87 1,031 -26.09 0.0316
2018-11-13 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 13,603 -758 -5.28 1,395 -11.60 0.0392
2018-08-03 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 14,361 -597 -3.99 1,578 -0.19 0.0478
2018-05-07 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 14,958 -7,236 -32.60 1,581 -35.44 0.0488
2018-01-29 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 22,194 -1,406 -5.96 2,449 4.75 0.0728
2017-11-02 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 23,600 -3,178 -11.87 2,338 3.45 0.0719
2017-08-09 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS - A - N53745100 26,778 -6,185 -18.76 2,260 -24.82 0.0693
2017-05-15 2017-03-31 13F LYONDELLBASELL INDUSTRIES SHS -A- N53745100 32,963 -7,545 -18.63 3,006 -13.50 0.0919
2017-02-14 2016-12-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 40,508 -19,254 -32.22 3,475 -27.90 0.1126
2016-11-14 2016-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - SHS -A- N53745100 59,762 -11,186 -15.77 4,820 -8.71 0.1651
2016-08-12 2016-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 70,948 4,634 6.99 5,280 -6.98 0.1855
2016-05-16 2016-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 66,314 66,314 5,676 0.2007
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.