LYONDELLBASELL INDUSTRIES N (LYB) Institutional Ownership Changes & 13F Activity
LYONDELLBASELL INDUSTRIES N (LYB) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Dodge & Cox Stock Fund, Muhlenkamp & Co, Sequoia Financial Advisors, Miller Value Partners, and Renaissance Technologies LLC.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2020 | Eagle Capital Management | Buy | 3,589,415 | 3,589,415 | $178,143 |
| Q1 2020 | Renaissance Technologies LLC | Sell | -27,100 | 98,300 | $4,879 |
| Q1 2020 | Sequoia Financial Advisors | Buy | 1,298 | 9,060 | $450 |
| Q1 2020 | Torray Fund | Sell | -899 | 25,379 | $1,260 |
| Q4 2019 | Renaissance Technologies LLC | Buy | 121,600 | 125,400 | $11,848 |
| Q4 2019 | Sequoia Financial Advisors | Buy | 7,762 | 7,762 | $733 |
| Q4 2019 | Torray Fund | Sell | -257 | 26,278 | $2,483 |
| Q3 2019 | Torray Fund | Buy | 244 | 26,535 | $2,374 |
| Q2 2019 | Renaissance Technologies LLC | Sell | -1,577,200 | 3,800 | $327 |
| Q2 2019 | Torray Fund | Buy | 1,615 | 26,291 | $2,264 |
| Q1 2019 | Viking Global Investors | Sell | -3,238,083 | 633,235 | $53,242 |
| Q1 2019 | Renaissance Technologies LLC | Buy | 346,700 | 1,581,000 | $132,930 |
| Q1 2019 | Torray Fund | Buy | 2,107 | 24,676 | $2,075 |
| Q4 2018 | Renaissance Technologies LLC | Buy | 780,400 | 1,234,300 | $102,644 |
| Q4 2018 | Torray Fund | Buy | 2,323 | 22,569 | $1,877 |
| Q3 2018 | Renaissance Technologies LLC | Buy | 20,100 | 453,900 | $46,529 |
| Q3 2018 | Torray Fund | Buy | 2,460 | 20,246 | $2,075 |
| Q2 2018 | Torray Fund | Buy | 302 | 17,786 | $1,954 |
| Q1 2018 | Renaissance Technologies LLC | Buy | 68,300 | 433,800 | $45,844 |
| Q1 2018 | Torray Fund | Buy | 1,535 | 17,484 | $1,848 |
| Q4 2017 | Renaissance Technologies LLC | Sell | -8,500 | 365,500 | $40,322 |
| Q4 2017 | Torray Fund | Buy | 1,629 | 15,949 | $1,759 |
| Q3 2017 | Torray Fund | Buy | 940 | 14,320 | $1,418 |
| Q2 2017 | Viking Global Investors | Buy | 1,441,093 | 3,871,318 | $326,701 |
| Q2 2017 | Renaissance Technologies LLC | Buy | 46,800 | 374,000 | $31,562 |
| Q2 2017 | Torray Fund | Buy | 3,350 | 13,380 | $1,129 |
| Q1 2017 | Viking Global Investors | Buy | 145,155 | 2,430,225 | $221,612 |
| Q1 2017 | Muhlenkamp & Co | Buy | 300 | 2,900 | $264 |
| Q1 2017 | Torray Fund | Buy | 10 | 10,030 | $915 |
| Q4 2016 | Viking Global Investors | Sell | -1,675,008 | 2,285,070 | $196,013 |
Frequently asked questions about LYB activity
Which institutional owners are buying LYB?
Institutional owners buying LYB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in LYB activity?
"Buy" means an investor increased their reported position in LYB compared to the prior reporting period. This reflects growing exposure to LYONDELLBASELL INDUSTRIES N (LYB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in LYB increasing?
Institutional interest in LYB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.