No, I believe Apple owned the building and built the solar array. GTAT used their massive factory. When the deal fell through, Apple retained the factory.
I owned some GTAT stock. I bought at around $10, it peaked a few months later at around $22 or so. Then the August earnings call from GTAT indicated all things looked good, especially for their project with their major client. Then when the iPhone (6, I think) was announced, analysts were confused there was no mention of sapphire glass. The stock still was doing ok in the teens. Around Oct 1, they announced they were suspending trading, and a few hours later they announced bankruptcy. When it resumed trading, the prices were at around 50¢. They clearly misled investors. I'm a little bitter, but it has changed my perspective on investing in small growth companies. I wasn't even all-in on sapphire glass. I liked that they held other patents on advanced solar technologies, among other things.