Private company
Who owns Circular Rotterdam B.V.
One company in the researched set discloses a stake in Circular Rotterdam B.V., none of it sized by anyone who discloses it. Circular Rotterdam B.V. is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
What this is
A Dutch financial holding company registered in Rotterdam in February 2023, whose only public record is a line in LyondellBasell's Exhibit 21 joint venture list and a bare entry in the Netherlands trade register: nothing published describes an operating business.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- LyondellBasell Industries N.V.. Exhibit 21.1 to the FY2025 10-K (filed 20 Feb 2026) states that LyondellBasell Industries Holdings B.V. owns a 22.26% interest in Circular Rotterdam B.V.. This is a 22.26 percent ownership interest, written here as the number 22.26, not as a fraction of 100. LyondellBasell's balance sheet carries a single combined 'Equity investments' line ($3,963 million at 31 Dec 2025 per the 10-K; $3,875 million at 30 Jun 2026 per the most recent 10-Q) covering all equity-method investees together, so no individual carrying value is disclosed for this venture: value_usd is null. sourcesource 2
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Circular Rotterdam B.V. where a holder stated one, and are missing where no holder did.