The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query LYB owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/LYB"
Use Arkolith to show who owns LYB, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | STATE STREET CORP | $1.1B | 13.5M | ▼−0.3% Reduced · −36K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $966.1M | 12.0M | ▲New +12.0M sh | Q1 2026 | |
| 3 | Holocene Advisors, LP | $228.4M | 2.8M | ▲New +2.8M sh | Q1 2026 | |
| 4 | Ensign Peak Advisors, Inc | $144.6M | 1.8M | ▲+1.7% Added · +29K sh | Q1 2026 | |
| 5 | CITADEL ADVISORS LLC | $121.2M | 1.5M | ▲+154% Added · +913K sh | Q1 2026 | |
| 6 | VANGUARD FIDUCIARY TRUST CO | $116.8M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 7 | Woodline Partners LP | $86.6M | 1.1M | ▲228× Added · +1.1M sh | Q1 2026 | |
| 8 | CINCINNATI INSURANCE CO | $71.3M | 886K | —Held | Q1 2026 | |
| 9 | SAMLYN CAPITAL, LLC | $55.3M | 686K | ▲New +686K sh | Q1 2026 | |
| 10 | Merewether Investment Management, LP | $52.7M | 655K | ▲New +655K sh | Q1 2026 | |
| 11 | Gotham Asset Management, LLC | $50.9M | 632K | ▲+65% Added · +249K sh | Q1 2026 | |
| 12 | ALPS ADVISORS INC | $29.4M | 364K | ▼−36% Reduced · −201K sh | Q1 2026 | |
| 13 | Ceredex Value Advisors LLC | $28.7M | 356K | ▲New +356K sh | Q1 2026 | |
| 14 | Grantham, Mayo, Van Otterloo & Co. LLC | $28.6M | 355K | ▼−25% Reduced · −119K sh | Q1 2026 | |
| 15 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $24.6M | 305K | ▼−20% Reduced · −79K sh | Q1 2026 | |
| 16 | Yaupon Capital Management LP | $22.7M | 282K | ▲New +282K sh | Q1 2026 | |
| 17 | Gradient Investments LLC | $21.9M | 271K | ▼−6.0% Reduced · −17K sh | Q1 2026 | |
| 18 | AVIVA PLC | $18.0M | 223K | ▲+2.6% Added · +6K sh | Q1 2026 | |
| 19 | GATEWAY INVESTMENT ADVISERS LLC | $17.8M | 221K | ▼−15% Reduced · −40K sh | Q1 2026 | |
| 20 | DANSKE BANK A/S | $16.6M | 206K | ▼−15% Reduced · −38K sh | Q1 2026 | |
| 21 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $15.9M | 198K | —Held | Q1 2026 | |
| 22 | Rokos Capital Management LLP | $13.2M | 164K | ▲New +164K sh | Q1 2026 | |
| 23 | Universal- Beteiligungs- und Servicegesellschaft mbH | $13.2M | 163K | ▲+14% Added · +20K sh | Q1 2026 | |
| 24 | Zurcher Kantonalbank (Zurich Cantonalbank) | $12.1M | 151K | ▲+4.5% Added · +7K sh | Q1 2026 | |
| 25 | IEQ CAPITAL, LLC | $11.7M | 146K | ▲New +146K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 251 | $17K |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 115K | $7.9M |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 81K | $5.4M |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Gift (G) | 465K | $0 |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 414 | $28K |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 189K | $12.9M |
| Mar 9, 2026 | Blavatnik Len | 10% Owner | Sell (S) | 177 | $12K |
| Feb 28, 2026 | Campbell Tracey D | EVP, Sustainability & Corp Aff | Grant (A) | 5K | $0 |
| Feb 28, 2026 | Foley Kimberly A | EVP, Global O&P and Refining | Grant (A) | 23K | $0 |
| Feb 28, 2026 | Izquierdo Sabido Agustin | EVP & Chief Financial Officer | Grant (A) | 20K | $0 |
| Feb 28, 2026 | Rhenman Torkel | EVP, Adv Polymer Solutions | Grant (A) | 23K | $0 |
| Feb 28, 2026 | van der Laan Yvonne | EVP, Circular & Low Carbon Sol | Grant (A) | 12K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 286 funds | $99.1B |
| AMAZON.COM INCAMZN | 285 funds | $76.2B |
| META PLATFORMS INC-CLASS AMETA | 283 funds | $43.4B |
| JPMORGAN CHASE & COJPM | 283 funds | $32.2B |
| NVIDIA CORPNVDA | 282 funds | $135.0B |
| ALPHABET INC-CL AGOOGL | 282 funds | $66.3B |
| BROADCOM INCAVGO | 282 funds | $51.6B |
| ELI LILLY & COLLY | 282 funds | $25.2B |
| APPLE INCAAPL | 281 funds | $117.9B |
| VISA INC-CLASS A SHARESV | 280 funds | $20.9B |
| MICRON TECHNOLOGY INCMU | 279 funds | $15.8B |
| BANK OF AMERICA CORPBAC | 279 funds | $10.4B |
Ranked by how many of LYB's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LYB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.