라이온델바젤 인더스트리 NV
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionXML Financial, LLC
Latest Disclosed Ownership18,706 shares
Latest Disclosed Value $ 1,506,971
XML Financial, LLC reports 14.65% decrease in ownership of LYB / LyondellBasell Industries N.V.

On April 16, 2026 - XML Financial, LLC filed a 13F-HR form disclosing ownership of 18,706 shares of LyondellBasell Industries N.V. (US:LYB) valued at $1,506,955 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 21,916 shares of LyondellBasell Industries N.V.. This represents a change in shares of -14.65% during the quarter. The current value of the position is $1,237,963 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)
2026-04-16 2026-03-31 13F LYONDELLBASELL INDUSTRIES SHS - A - N53745100 18,706 -3,210 -14.65 1,507 58.86 0.1216
2026-02-11 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 21,916 -12,404 -36.14 949 -43.67 0.0774
2025-10-20 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 34,320 3,155 10.12 1,683 -6.66 0.1370
2025-07-17 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 31,165 23,351 298.84 1,803 227.82 0.1560
2025-04-22 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 7,814 2,511 47.35 550 39.95 0.0513
2025-01-17 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,303 1,783 50.65 394 16.62 0.0361
2024-11-01 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,520 39 1.12 338 1.51 0.0313
2024-07-22 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,481 39 1.13 333 -5.68 0.0335
2024-05-15 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,442 33 0.97 352 8.64 0.0361
2024-02-14 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,409 36 1.07 324 1.57 0.0342
2023-11-06 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,373 33 0.99 319 4.25 0.0383
2023-08-07 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,340 386 13.07 307 10.47 0.0355
2023-05-15 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,954 -230 -7.22 277 4.92 0.0338
2023-02-10 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,184 3,184 264 0.0332
2022-11-04 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 0 -2,500 -100.00 0 -100.00
2022-08-01 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,500 153 6.52 219 -9.13 0.0495
2022-05-02 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,347 27 1.16 241 12.62 0.0287
2022-02-01 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,320 28 1.22 214 -0.47 0.0258
2021-11-01 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,292 23 1.01 215 -7.73 0.0287
2021-08-10 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,269 26 1.16 233 0.00 0.0513
2021-05-14 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,243 24 1.08 233 14.78 0.0568
2021-02-08 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,219 -781 -26.03 203 -3.79 0.0526
2020-11-13 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,000 3,000 211 0.0659
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.