Today's price and the 'expected' future price is all that matters. The 90% lifetime price history is not relevant. All transactions of this nature are based on future value. The offer is only an 18% premium at a time when many tech stocks are being hammered due to extrinsic reasons. It is not a serious offer.
The share price tells you nothing by itself—you also need to know the amount of shares outstanding at both points in time to make an actual comparison.
