Form 13-F position report

LYONDELLBASELL INDUSTRIES NV

Reported by Summit Street Capital Management LLC

LYB CUSIP N53745100 Manager CIK 0001595533

Reported 419,514 shares, down 185,848 (30.7%) from the prior quarter.

Reported value 28.9%; share count -30.7% vs. the prior quarter.

Reduced
% of reported 13F value 4.78% This manager · Q1 2026
Shares 419,514 Quarter-end amount reported
Reported value $33,796,048 Fair value at quarter end
Consecutive quarters held 46 Through Q1 2026

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 4878000
2021-12-31 5495000
2022-03-31 6126000
2022-06-30 5211000
2022-09-30 4485000
2022-12-31 5098125
2023-03-31 6668818
2023-06-30 6522501
2023-09-30 6726352
2023-12-31 6753342
2024-03-31 7264744
2024-06-30 7748651
2024-09-30 8455791
2024-12-31 16212250
2025-03-31 21769088
2025-06-30 18307598
2025-09-30 19166842
2025-12-31 26212175
2026-03-31 33796048
2026-06-30 17716777

Quarterly position history

How this manager's reported quarter-end position changed over time.

20 quarters
Quarterly reported position history for LYONDELLBASELL INDUSTRIES NV held by Summit Street Capital Management LLC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Reduced 336,501 -83,013 (-19.8%) 2.49% $17,716,777 2026-08-14
Q1 2026 Reduced 419,514 -185,848 (-30.7%) 4.78% $33,796,048 2026-05-15
Q4 2025 Added 605,362 +214,521 (54.9%) 4.12% $26,212,175 2026-02-17
Q3 2025 Added 390,841 +74,429 (23.5%) 2.63% $19,166,842 2025-11-14
Q2 2025 Added 316,412 +7,192 (2.3%) 3.02% $18,307,598 2025-08-14
Q1 2025 Added 309,220 +90,932 (41.7%) 3.62% $21,769,088 2025-05-15
Q4 2024 Added 218,288 +130,115 (147.6%) 2.54% $16,212,250 2025-02-14
Q3 2024 Added 88,173 +7,171 (8.9%) 3.02% $8,455,791 2024-11-14
Q2 2024 Added 81,002 +9,974 (14.0%) 2.83% $7,748,651 2024-08-14
Q1 2024 Unchanged 71,028 0 (0.0%) 2.79% $7,264,744 2024-05-15
Q4 2023 Unchanged 71,028 0 (0.0%) 2.86% $6,753,342 2024-02-14
Q3 2023 Unchanged 71,028 0 (0.0%) 3.0% $6,726,352 2023-11-14
Q2 2023 Unchanged 71,028 0 (0.0%) 3.07% $6,522,501 2023-08-14
Q1 2023 Added 71,028 +9,627 (15.7%) 3.54% $6,668,818 2023-05-15
Q4 2022 Added 61,401 +1,825 (3.1%) 3.22% $5,098,125 2023-02-14
Q3 2022 Unchanged 59,576 0 (0.0%) 3.11% $4,485,000 2022-11-14
Q2 2022 Unchanged 59,576 0 (0.0%) 3.42% $5,211,000 2022-08-15
Q1 2022 Unchanged 59,576 0 (0.0%) 3.7% $6,126,000 2022-05-16
Q4 2021 Added 59,576 +7,597 (14.6%) 3.43% $5,495,000 2022-02-14
Q3 2021 Unchanged 51,979 0 (0.0%) 3.24% $4,878,000 2021-11-15
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

1046 managers reported LYONDELLBASELL INDUSTRIES NV for Q1 2026.

Managers reporting LYONDELLBASELL INDUSTRIES NV in Q1 2026.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Reduced 25,113,288 -10,213,194 0.04% $2,023,126,447 7 qtrs
Dodge & Cox Reduced 16,839,152 -39,925 0.75% $1,356,562,085 24 qtrs
VANGUARD CAPITAL MANAGEMENT LLC New 16,759,788 +16,759,788 0.03% $1,350,168,521 1 qtr
STATE STREET CORPORATION Reduced 13,509,115 -35,596 0.04% $1,088,294,304 52 qtrs
VANGUARD PORTFOLIO MANAGEMENT LLC New 11,992,716 +11,992,716 0.05% $966,133,201 1 qtr
Capital World Investors Added 11,749,410 +1,905,480 0.13% $946,532,470 10 qtrs
Capital Research Global Investors Added 10,205,644 +1,045,942 0.13% $822,166,681 8 qtrs
FMR LLC Added 8,518,205 +3,905,306 0.04% $686,226,614 52 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 6,945,441 +8,090 0.04% $562,714,982 52 qtrs
MORGAN STANLEY Reduced 6,668,733 -2,303,008 0.03% $537,233,192 52 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
March 31, 2026
Filed
May 15, 2026
Filing type
13F-HR
Position type
SHS - A -

Voting authority reported

Sole
419,514
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.