LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionSilvant Capital Management LLC
Latest Disclosed Ownership1,788 shares
Latest Disclosed Value $ 144,041
Silvant Capital Management LLC ownership in LYB / LyondellBasell Industries N.V.

On May 14, 2026 - Silvant Capital Management LLC filed a 13F-HR form disclosing ownership of 1,788 shares of LyondellBasell Industries N.V. (US:LYB) valued at $144,041 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,788 shares of LyondellBasell Industries N.V.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $115,326 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)
2026-05-14 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 1,788 0 0.00 144 87.01 0.0050
2026-02-13 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 77 -11.49 0.0026
2025-11-18 2025-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 88 -15.53 0.0030
2025-11-13 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 88 0.0018
2025-08-13 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 103 -17.60 0.0039
2025-05-14 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 126 -5.30 0.0058
2025-02-13 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 133 -22.81 0.0055
2024-10-29 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 171 0.00 0.0075
2024-07-25 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 171 -6.04 0.0076
2024-04-30 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 183 7.06 0.0087
2024-01-25 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 170 0.59 0.0091
2023-10-24 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 169 3.05 0.0102
2023-07-25 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 164 -1.80 0.0092
2023-04-26 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 168 12.84 0.0109
2023-01-23 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 148 9.63 0.0105
2022-11-09 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 135 -13.46 0.0092
2022-08-03 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 0 0.00 156 -15.22 0.0378
2022-05-05 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,788 850 90.62 184 111.49 0.0350
2022-02-07 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 0 0.00 87 -1.14 0.0149
2021-11-08 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 0 0.00 88 -8.33 0.0157
2021-08-03 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 0 0.00 96 -2.04 0.0151
2021-05-11 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 0 0.00 98 13.95 0.0167
2021-02-05 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 0 0.00 86 30.30 0.0147
2020-11-09 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 938 285 43.64 66 53.49 0.0124
2020-08-11 2020-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 653 0 0.00 43 34.38 0.0077
2020-05-13 2020-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 653 0 0.00 32 -48.39 0.0070
2020-02-10 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 653 0 0.00 62 6.90 0.0113
2019-11-12 2019-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 653 -144 -18.07 58 -15.94 0.0115
2019-08-09 2019-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 0 0.00 69 2.99 0.0124
2019-05-10 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 0 0.00 67 1.52 0.0120
2019-02-06 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 0 0.00 66 -19.51 0.0132
2018-11-07 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 0 0.00 82 -6.82 0.0101
2018-08-13 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 0 0.00 88 4.76 0.0109
2018-05-09 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 797 797 84 0.0108
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.