LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionHm Payson & Co
Latest Disclosed Ownership1,312 shares
Latest Disclosed Value $ 105,696
Hm Payson & Co reports 30.18% decrease in ownership of LYB / LyondellBasell Industries N.V.

On April 13, 2026 - Hm Payson & Co filed a 13F-HR form disclosing ownership of 1,312 shares of LyondellBasell Industries N.V. (US:LYB) valued at $105,695 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,879 shares of LyondellBasell Industries N.V.. This represents a change in shares of -30.18% during the quarter. The current value of the position is $88,298 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)
2026-04-13 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 1,312 -567 -30.18 106 29.63 0.0008
2026-02-12 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,879 567 43.22 81 26.56
2025-10-17 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,312 124 10.44 64 -5.88 0.0009
2025-10-17 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,188 64 5.69 69 -13.92 0.0011
2025-04-29 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 1,124 1,096 3,914.29 79 3,850.00 0.0014
2025-02-07 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 28 0 0.00 2 0.00 0.0000
2024-10-28 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 28 -469 -94.37 3 -95.74 0.0000
2024-08-13 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 497 497 48 0.0009
2024-02-13 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -41 -100.00 0 -100.00
2023-11-06 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 41 0 0.00 4 0.00 0.0001
2023-07-17 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 41 0 0.00 4 0.00 0.0001
2023-04-18 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 41 -15 -26.79 4 -25.00 0.0001
2023-02-06 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 56 41 273.33 5 300.00 0.0001
2022-10-25 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 1 0.00 0.0000
2022-08-15 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 1 -50.00 0.0000
2022-05-12 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 2 100.00 0.0000
2022-02-15 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 1 0.00 0.0000
2021-11-30 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 1 -50.00 0.0000
2021-08-17 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 0 0.00 2 0.00 0.0000
2021-06-15 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 15 15 2 0.0001
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.