Private company
Who owns IMS Nanofabrication GmbH
One company in the researched set discloses a stake in IMS Nanofabrication GmbH, none of it sized by anyone who discloses it. IMS Nanofabrication GmbH 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.
IMS Nanofabrication GmbH - Profile
- Type
- private company
- Based in
- Austria
IMS Nanofabrication GmbH designs and builds multi-beam electron lithography systems used to write the photomasks that semiconductor fabs print advanced chips from. Based at Brunn am Gebirge outside Vienna, Austria, with offices in Germany, the United States, Taiwan and South Korea, it invented multi electron beam mask writing and shipped the first commercial multi-beam mask writer, the MBMW-101, in 2015, followed by the MBMW-201 for the 5 nanometer node in early 2019. Its customers are mask shops and chipmakers working at leading edge nodes, where the shapes are too small and too numerous for single beam writers to expose in a workable time. The company operates as a standalone business under its own management, and a 2023 transaction that sold a roughly 20 percent stake to Bain Capital Special Situations valued it at about 4.3 billion dollars.
Source
IMS Nanofabrication GmbH files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from IMS Nanofabrication company website, Intel Agrees to Sell Minority Stake in IMS Nanofabrication Business to Bain Capital (Intel newsroom), Intel Agrees to Sell Minority Stake in IMS Nanofabrication Business to Bain Capital (Bain Capital) and Intel to sell minority stake in IMS Nanofabrication (Silicon Semiconductor). The ownership figures below come from the holders' filings instead, and are sourced row by row.
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.
- Intel Corporation. Intel's 10-Q Note 3 (Non-Controlling Interests) states outside investors hold a 32 percent non-controlling interest in IMS Nanofabrication as of 27 June 2026 (unchanged since 2023), so Intel's own interest is the complement, 68 percent. IMS is consolidated as a majority-owned subsidiary, not accounted for under the equity method, so it does not appear in the $8.41 billion 'equity investments' balance and no separate carrying value for Intel's 68 percent share is disclosed. Only the non-controlling (outside investors') carrying value is given: $113 million as of 27 December 2025. 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 IMS Nanofabrication GmbH where a holder stated one, and are missing where no holder did.