LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionAlgert Global Llc
Latest Disclosed Ownership36,360 shares
Latest Disclosed Value $ 2,929
Algert Global Llc ownership in LYB / LyondellBasell Industries N.V.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 36,360 shares of LyondellBasell Industries N.V. (US:LYB) valued at $2,929,162 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 14, 2025 disclosing 0 shares of LyondellBasell Industries N.V.. The current value of the position is $2,406,305 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 36,360 36,360 3 0.0441
2025-08-14 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -6,721 -100.00 0 0.0000
2025-05-13 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,721 6,721 0 0.0117
2024-08-15 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -3,128 -100.00 0 0.0000
2024-05-15 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,128 -2,710 -46.42 0 0.0125
2024-02-14 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,838 5,838 1 0.0224
2023-02-13 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -5,054 -100.00 0 -100.00
2022-11-15 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,054 -6,062 -54.53 380 -60.91 0.0230
2022-08-15 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,116 0 0.00 972 -14.96 0.0731
2022-05-16 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 11,116 2,742 32.74 1,143 48.06 0.0748
2022-02-14 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,374 8,374 772 0.0964
2021-11-15 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -13,635 -100.00 0 -100.00
2021-08-13 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,635 13,635 1,403 0.4723
2020-05-13 2020-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -8,817 -100.00 0 -100.00
2020-02-18 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,817 8,817 833 0.2488
2019-05-01 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -33,343 -100.00 0 -100.00
2019-02-01 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 33,343 -705 -2.07 2,773 -20.54 0.7731
2018-11-14 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 34,048 -271 -0.79 3,490 -7.43 0.7526
2018-08-01 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 34,319 34,319 0.80 3,770 8.02 0.7828
2018-02-01 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -27,957 -100.00 0 -100.00
2017-11-16 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 27,957 -405 -1.43 2,769 15.71 0.6331
2017-07-31 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 28,362 2,126 8.10 2,393 0.04 0.6719
2017-05-02 2017-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 26,236 12,803 95.31 2,392 107.64 0.6464
2017-01-25 2016-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,433 -147 -1.08 1,152 5.21 0.3295
2016-10-11 2016-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 13,580 7,449 121.50 1,095 140.13 0.3167
2016-08-12 2016-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,131 6,131 456 0.1849
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.