LyondellBasell Industries N.V. (LYB) Institutional Ownership
Q1 2026 13F Data|Updated 2026-06-13
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Institutional ownership increased this quarter (+45.25 pp), though top 10 holders maintain a highly concentrated 53.0% of institutional value.
Institutional Ownership93.7%$19.5B total value · ▲ +45.25 pp vs prior quarter
Can exceed 100% due to securities lending, short interest, and reporting timing differences.
Smart Money Score84 / 100Strong Smart Money
Based on ownership concentration, fund quality, buying/selling activity, conviction signals, and institutional trend.
Institutions & Flow904 holders+137 net flow (+267 / -130)
AI Insights & Key Takeaways
- Positive Institutional Flow (+137)
- Marquee funds including Susquehanna International Group, Llp and Citadel Advisors Llc maintain significant positions
- Top 10 holders control 53.0% of institutional value
- No Insider Signal
Top Institutional Holders of LYB
Ranked by reported Q1 2026 13F market value
Top 10 Holders
53.0%
Top 25 Holders
74.5%
Share of total reported institutional value in LYB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 25.1M | $2.02B | -28.9% | 7.795% | 0.04% |
| 2 | DODGE & COX | 16.8M | $1.36B | -0.2% | 5.227% | 0.75% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 16.8M | $1.35B | — | 5.202% | 0.03% |
Quarterly Institutional Activity
Filings activity in LYB during Q1 2026, grouped by how each filer changed its position.
LYB Institutional Ownership by Quarter
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 904 | +18% | 93.68% | +45.25 pp | $19.49B | +93% |
| Q4 2025 | 767 | 1.3% | 48.43% | 3.09 pp | $10.08B | 6.0% |
| Q3 2025 | 777 | 9.1% | 51.52% | 14.71 pp | $10.72B | 22% |
| Q2 2025 | 855 | 6.7% | 66.23% | 18.03 pp | $13.78B | 21% |
| Q1 2025 | 916 | 1.8% | 84.26% | +3.47 pp | $17.53B | +4.3% |
| Q4 2024 | 933 |
LYB — Frequently Asked Questions
Quick answers to the most common questions about buying LYB stock.
What percentage of LYB is owned by institutions?
Based on Q1 2026 13F filings, institutional ownership of LyondellBasell Industries N.V. stands at 93.7%, held across 904 reporting institutions.
Who is the largest institutional holder of LYB?
BlackRock, Inc. is the largest reported institutional holder of LYB, with approximately 25,113,288 shares worth $2.02B as of Q1 2026.
Is LYB a hedge fund favorite?
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of LYB, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.
What is LYB's Smart Money Score?
Our composite Smart Money Score for LYB is 84 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.