Slice of Stock

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.

Disclosed holders1in the researched set
Disclosed valuenot sized0 of 1 positions carry a figure
Most recent measurementundatedas of, not as reported
Visible to a 13FNoprivate company

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.

Micron TechnologyMUpressreportednot sizednot sizedn/a

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.

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.