You still own the share. Just that the shares are no longer listed.
You can still sell your share to someone else, but you will have to find a buyer yourself. The function of the share market is to put all the buyers and sellers in the one place. But now this function is no longer available.
You should still be entitled to the profits and dividends of the company (oops, IDG doesn't pay dividend). IDG has quite a lot of assets on the books but that's no good if the shareholder can't access them.
These factors explain why everyone was bailing out and why the share price fell from $6.40 to $3.50 before delisting.