Didn't buy them. Here is what it says when I click on info:
Purchase price, cost basis, and gain information for this position is unavailable here because:
Your position may be undergoing an option assignment or exercise, or a corporate action, such as a dividend payment or a stock split. If so, the cost basis or gain information will be available in a day or two.
We may not have received your cost basis information if you deposited physical security certificates or transferred securities. It may take up to 15 days for a delivering firm to send cost basis information for transferred securities.
Fractional shares from a position you closed remain in your account; they will close out overnight at your order execution price.