As of the latest Form 4 filed Jul 2, 2026.
What LyondellBasell Industries NV insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 32 most recent filings for LYB.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-02 | 2026-06-30 | Karlin Bridget E Director | FTax | −73.00 | $52.65 | $3.84K | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Karlin Bridget E, Director | AAward | +615.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | KAMSKY VIRGINIA A Director | FTax | −100.00 | $52.65 | $5.26K | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | KAMSKY VIRGINIA A, Director | AAward | +561.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Karlin Bridget E Director | FTax | −521.00 | $69.72 | $36.3K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Manifold Albert Jude Director | FTax | −689.00 | $69.72 | $48.0K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Hanley Michael Sean Director | FTax | −540.00 | $69.72 | $37.6K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Benet Lincoln E Director | FTax | −1.41K | $69.72 | $98.3K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Buchanan Robin W.T. Director | FTax | −1.25K | $69.72 | $86.9K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | CHASE ANTHONY R Director | FTax | −540.00 | $69.72 | $37.6K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | FARLEY CLAIRE S Director | FTax | −565.00 | $69.72 | $39.4K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | AIGRAIN JACQUES Director | FTax | −575.00 | $69.72 | $40.1K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | KAMSKY VIRGINIA A Director | FTax | −593.00 | $69.72 | $41.3K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Karlin Bridget E Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Manifold Albert Jude Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Hanley Michael Sean Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Benet Lincoln E Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Buchanan Robin W.T. Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | CHASE ANTHONY R Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | FARLEY CLAIRE S Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | AIGRAIN JACQUES Director | AAward | +4.44K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | KAMSKY VIRGINIA A Director | AAward | +2.32K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Kaplan Jeffrey A EVP, Chief PC, Leg & Corp Ofc | SSale | −10.0K | $74.16 | $742K | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Hayes Matthew D SVP & CAO | FTax | −40.00 | $73.13 | $2.93K | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | Izquierdo Sabido Agustin EVP & Chief Financial Officer | FTax | −45.00 | $73.13 | $3.29K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC 10% owner | SSale | −251.00 | $68.90 | $17.3K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | SSale | −115K | $68.90 | $7.90M | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | SSale | −414.00 | $68.13 | $28.2K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | SSale | −189K | $68.13 | $12.9M | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | SSale | −177.00 | $67.03 | $11.9K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | SSale | −80.7K | $67.03 | $5.41M | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | AI INVESTMENTS HOLDINGS LLC, 10% owner | GGift | −465K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also LYB’s full analysis or the market-wide insider trading feed. The tabs above jump to LYB’s other SEC data.
Source: SEC Form 4 filings for LYB, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.