LyondellBasell Industries N.V.
US ˙ NYSE

SecurityLYB / LyondellBasell Industries N.V.
InstitutionMorgan Stanley
Latest Disclosed Ownership6,668,733 shares
Latest Disclosed Value $ 537,233,192
Morgan Stanley reports 25.67% decrease in ownership of LYB / LyondellBasell Industries N.V.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 6,668,733 shares of LyondellBasell Industries N.V. (US:LYB) valued at $537,233,130 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 8,971,741 shares of LyondellBasell Industries N.V.. This represents a change in shares of -25.67% during the quarter. The current value of the position is $441,336,750 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 6,668,733 -2,303,008 -25.67 537,233 38.29 0.0324
2026-05-27 2025-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,971,741 1,300,271 16.95 388,476 3.26 0.0232
2026-02-13 2025-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,971,741 1,300,271 388,476 0.0232
2026-05-27 2025-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 7,671,470 -1,097,544 -12.52 376,209 -25.85 0.0228
2025-11-14 2025-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 7,671,470 -1,097,544 376,209 0.0228
2025-08-15 2025-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8,769,014 2,049,725 30.51 507,375 7.26 0.0331
2025-05-15 2025-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,719,289 905,290 15.57 473,038 9.55 0.0338
2025-05-15 2024-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,813,999 -129,142 -2.17 431,806 -24.24 0.0303
2025-02-14 2024-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,813,999 -129,142 431,806 0.0302
2025-05-14 2024-09-30 13F/A-2 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,943,141 231,359 4.05 569,947 4.31 0.0413
2025-02-14 2024-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,943,141 231,359 569,947 0.0413
2024-11-14 2024-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,943,141 231,359 569,947 0.0049
2025-05-14 2024-06-30 13F/A-2 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,711,782 -148,668 -2.54 546,389 -8.84 0.0423
2024-10-17 2024-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,711,782 -148,668 546,389 0.0423
2024-08-14 2024-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,711,782 -148,668 546,389 0.0423
2024-10-17 2024-03-31 13F/A-2 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,860,450 -125,772 -2.10 599,407 5.31 0.0481
2024-08-16 2024-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,860,450 -125,772 599,407 0.0056
2024-05-15 2024-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,860,450 -125,772 599,407 0.0481
2024-08-16 2023-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,986,222 -319,374 -5.06 569,170 -4.68 0.0502
2024-02-13 2023-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,986,222 -319,374 569,170 0.0502
2023-11-15 2023-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6,305,596 569,887 9.94 597,140 13.37 0.0607
2023-08-14 2023-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,735,709 277,034 5.08 526,710 2.77 0.0519
2023-05-15 2023-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,458,675 -105,459 -1.90 512,515 10.94 0.0550
2023-02-14 2022-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,564,134 34,064 0.62 461,990 10.97 0.0525
2022-11-14 2022-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,530,070 -164,059 -2.88 416,302 -16.41 0.0567
2022-10-27 2022-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,694,129 1,355,891 31.25 498,009 11.65 0.0646
2022-08-15 2022-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 5,694,129 1,355,891 498,009 0.0646
2022-10-27 2022-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,338,238 271,429 6.67 446,059 18.92 0.0602
2022-05-13 2022-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,338,238 271,429 446,059 0.0602
2022-02-14 2021-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,066,809 -121,787 -2.91 375,082 -4.58 0.0463
2021-11-15 2021-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,188,596 121,871 3.00 393,101 -6.03 0.0529
2021-08-23 2021-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,066,725 431,182 11.86 418,344 10.59 0.0552
2021-08-16 2021-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,066,725 431,182 418,344 0.0115
2021-05-17 2021-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,635,543 176,757 5.11 378,278 19.32 0.0556
2021-02-16 2020-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,458,786 80,206 2.37 317,032 33.12 0.0490
2020-11-13 2020-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,378,580 573,728 20.45 238,157 29.20 0.0461
2020-08-14 2020-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,804,852 73,019 2.67 184,335 35.96 0.0408
2020-05-26 2020-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,731,833 -810,300 -22.88 135,580 -59.49 0.0368
2020-05-15 2020-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,731,833 -810,300 135,580 10,415.3704
2020-02-14 2019-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,542,133 -63,594 -1.76 334,662 3.74 0.0778
2019-11-14 2019-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,605,727 -512,888 -12.45 322,604 -9.06 0.0854
2019-08-14 2019-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,118,615 385,093 10.31 354,737 13.00 0.0944
2019-05-15 2019-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,733,522 -380,572 -9.25 313,915 -8.25 0.0889
2019-02-14 2018-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,114,094 -506,043 -10.95 342,129 -27.76 0.1024
2019-04-23 2018-09-30 13F/A-2 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,620,137 13,175 0.29 473,610 -6.42 0.1185
2018-11-20 2018-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,620,137 0 473,610 0.1185
2018-11-14 2018-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,620,137 13,175 473,610
2019-04-23 2018-06-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,606,962 413,346 9.86 506,075 14.19 0.1367
2018-08-14 2018-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,606,962 413,346 506,075
2019-04-23 2018-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,193,616 25,682 0.62 443,182 -3.62 0.1230
2018-05-14 2018-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,193,616 25,682 443,182
2019-04-23 2017-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,167,934 -283,188 -6.36 459,806 4.29 0.1259
2018-02-14 2017-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,167,934 -283,188 459,806
2017-11-14 2017-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,451,122 280,309 6.72 440,884 25.26 0.1321
2017-08-11 2017-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,170,813 9,418 0.23 351,976 -7.25 0.1063
2017-05-22 2017-03-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,161,395 -328,189 -7.31 379,478 -1.46 0.1166
2017-05-12 2017-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,161,395 379,478
2017-02-22 2016-12-31 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,489,584 327,046 7.86 385,117 14.70 0.1260
2017-02-13 2016-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,489,584 385,117
2016-11-10 2016-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,162,538 -473,876 -10.22 335,752 -2.69 0.1147
2016-08-12 2016-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,636,414 164,729 3.68 345,042 -9.84 0.1246
2016-05-12 2016-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,471,685 986,663 28.31 382,687 26.36 0.1473
2016-02-09 2015-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,485,022 34,025 0.99 302,850 5.28 0.1096
2016-02-08 2015-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,450,997 -340,647 -8.98 287,673 -26.71 0.1063
2015-11-09 2015-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,450,997 287,673
2015-08-12 2015-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,791,644 -239,138 -5.93 392,511 10.91 0.1361
2015-05-14 2015-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,030,782 -693,038 -14.67 353,901 -5.63 0.1303
2015-02-13 2014-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,723,820 1,263,155 36.50 375,023 -0.27 0.1371
2014-12-16 2014-09-30 13F/A-1 LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,460,665 -715,111 -17.13 376,035 -7.78 0.1446
2014-11-14 2014-09-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,460,665 376,035
2014-08-12 2014-06-30 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,175,776 859,528 25.92 407,764 38.25 0.6975
2014-05-13 2014-03-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,316,248 -164,632 -4.73 294,948 5.55 0.1235
2014-02-13 2013-12-31 13F LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,480,880 529,878 17.96 279,445 29.31 0.1189
2013-11-13 2013-09-30 13F LyondellBasell Industries N COM N53745100 2,951,002 -9,872,737 -76.99 216,100 -74.57 0.1021
2013-08-08 2013-06-30 13F LyondellBasell Industries N COM N53745100 12,823,739 12,823,739 849,700 0.4286
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.