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View all 888 holding institutions

Across its top 20 institutional holders, LYB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 43/100).

Notable Holders

LYB ranks #563 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.

888 institutions disclose a position in LYB, but none treat it as a major bet — even Davis Selected Advisers, its most concentrated holder, allocates just 2.0% of its own portfolio to it.

Cliff Asness has added to its LYB position for two straight quarters, increasing it by $351.7M to reach $485.7M today.

Charles Schwab Investment Management Inc has trimmed its LYB position for two straight quarters, cutting it by $296.2M while still holding $141.2M.

LYB is up 0.1% today, and institutions have been net buyers of $1.9B this quarter — today's price move and the underlying institutional flow are pointing the same direction.

Company Fundamentals

LYB reported a net loss of $346.0M over the trailing twelve months.

Not yet profitable — net loss of $346.0M over the trailing twelve months
Revenue grew 17.6% year over year
Net income declined year over year, from $262.0M to -$346.0M
Generated $2.3B in positive operating cash flow
Current ratio of 1.77x — enough short-term assets to cover short-term liabilities
Liabilities run 3.37x equity — a highly leveraged balance sheet worth noting

Price Chart

LYB Quarterly 13F Institutional Trade Shifts

Recent Activity

+$3.6B

Total Buy Value

$4.0B

Total Sell Value

New buy114

Trim307

Add361

Sold out177

475

Net Buyers

484

Net Sellers

Top Movers

LYB

Q2 2026

Top 5 Institutional Movers

Dodge & Cox

-$1.4B

Sold out

Vanguard GroupAggregated

-$861.0M

Trim

Capital Research Global Investors

-$737.3M

Trim

BlackRock

-$480.5M

Trim

State Street

-$312.5M

Trim

Data by AlphaSMO • Not financial advice.

Game Theory Scenarios

Neutral— Wait & Watch

Institutional accumulation clashes with insider selling

Signal Basis

13F filings show a net value increase of roughly $1.86B, yet seller count (484) marginally exceeds buyers (474) and exits (177) outnumber new buys (114); meanwhile insiders executed 6 sell transactions totaling $26.3M with zero purchases over the trailing 90 days, creating a clear divergence.

Confirmation

A subsequent quarter where institutional net buyer count turns decisively positive alongside any insider buy activity would confirm a bullish turn.

Invalidation Risk

If institutional flows flip to net distribution while insider selling persists or accelerates, the bearish case is confirmed.

The scenarios above are AI-generated directly from institutional holders' Form 13F filings on SEC EDGAR and describe historical patterns only. Not investment advice — see the underlying institutional filings linked below.

See the institutional 13F filings behind this signal

Smart Money Convergence

LYB does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Recent LYB Insider Buying & Selling Activity (Form 4)

90d confidence

unique buyers

—

buy value

data as of 2026-09-02

12-Month Buy/Sell Activity

Mar 25

Nov 25

BuySell

Action	Insider	Title	Date	Value
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$12.90M
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$12K
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$5.41M
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$17K
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$7.90M
Sell	Access Industries Holdings LLC	Insider	2026-03-09	$28K
Buy	Foley Kimberly A	EVP, Global O&P and Refining	2025-11-12	$247K
Sell	Vanacker Peter Z. E.	Chief Executive Officer	2025-08-15	$1.07M

View all insider trades →

Congress Trading (STOCK Act)

Action	Member	Trade Date	Amount
Buy	Alan Armstrong Senate	2026-03-27	$1K–$15K

View all congress trades →

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

Active 5%+ Holders

Data as of 2026-08-13

Reporting Person	Type	Filing Date	Shares	% of Class
Dodge & Cox	13G/A	2026-08-13	800	0.0%

View all Schedule 13D/13G filings

Material Events (8-K)

Filings (14d)

Data as of 2026-07-31

2026-07-31

LyondellBasell (LYB), the global chemicals and plastics maker, published its second-quarter 2026 earnings results on July 31, 2026. The 8-K formally announces the numbers and includes a supplemental discussion of how each business segment performed, with the full earnings release and segment breakdown attached as exhibits. One important caveat: the actual figures aren't in this excerpt — they're in the attached exhibits — so we can't see the specific numbers from this filing text alone.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

CUSIP

N53745100, 000943499, B3SPXZ3 , N53745900, n53745100

* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.

FAQ

Who are the top institutional investors holding LyondellBasell Industries N.V. (LYB)?

Major stakeholders currently include BlackRock, Inc. ($1.5B), Vanguard Capital Management LLC ($888.9M), State Street CORP ($775.8M). Based on the latest 13F filings, there are a total of 888 tracked investment funds and institutions maintaining positions in LYB.

What is the overall institutional sentiment toward LYB recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $1.9B, driven by 475 managers accumulating shares while 484 reduced their exposure.

Which institutions have been selling or reducing their LYB positions?

In the latest period, 307 funds trimmed their holdings, and 177 managers completely exited their positions. The aggregate reported sell value was $4.0B.

Are there any notable investors adding LYB to their portfolios?

Yes, buying activity remains notable. 114 institutions opened new positions in {ticker}, and 361 existing holders added to their shares. The total reported buy value for the quarter amounted to $3.6B.

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News

Articles

Data as of 2026-09-01

Stock Traders Daily2026-09-01

(LYB) Movement as an Input in Quant Signal Sets

MarketWatch2026-08-31

LyondellBasell Industries N.V. Cl A stock rises Monday, outperforms market

webull.com2026-08-28

LyondellBasell (LYB) Stock Could Still Be A Bargain On Cyclical Margins

simplywall.st2026-08-26

LyondellBasell (LYB) Stock Could Still Be A Bargain On Cyclical Margins

GuruFocus2026-08-25

A Look at LyondellBasell Industries NV (LYB) After 4.1% Decline -- GF Value $73.12 vs Price $62.55

Developer Access

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REST API

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CLI

npx alphasmo stocks get LYB

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