Private company
Who owns GlobalWafers Co., Ltd.
One company in the researched set discloses a stake in GlobalWafers Co., Ltd., none of it sized by anyone who discloses it. GlobalWafers Co., Ltd. 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.
GlobalWafers Co., Ltd. - Profile
- Type
- private company
- Based in
- Taiwan
- Founded
- 2011
GlobalWafers is a Taiwanese semiconductor materials company headquartered in the Hsinchu Science Park that makes the silicon wafers on which chips are built. Incorporated in 2011 as a spin out of Sino American Silicon Products, it runs the full wafer production chain from crystal ingot growth through slicing, etching, diffusion, polishing and epitaxy, and supplies polished, epitaxial and specialty wafers in diameters from 3 inch up to 300mm. It is one of the largest silicon wafer suppliers in the world and expanded into the United States and Europe largely through its 2016 acquisition of SunEdison Semiconductor. In May 2025 it opened a 300mm wafer plant in Sherman, Texas, the first of three fabs planned on that site. The shares trade on the Taiwan Stock Exchange under the code 6488.
Source
GlobalWafers Co., Ltd. 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 GlobalWafers (Wikipedia), GlobalWafers site locations and Sino-American Silicon release on the GlobalWafers listing. 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.
- Micron Technology. The headline number attached to GlobalWafers is a $500 million commitment inside a wider 'up to $3 billion' U.S. supply-chain programme announced 9 July 2026. Reporting describes Micron as having 'taken an equity stake' but does not separate how much of the $500m is equity as opposed to financing or prepayment, and gives no share count or percentage. Value left null rather than equating the commitment with an equity value. 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 GlobalWafers Co., Ltd. where a holder stated one, and are missing where no holder did.
