Ramiro,
Using the data you provided "as of december 5, 32,355,137 shares (from SEC filings). DCTH capitalisation reached around $600 million in 2010 without any product. It reached 150/250 million several times."
$150 million market cap at 32,355,137 shares = $4.64 share price
If $150 million market cap at 100,000,000 share - $1.50 share price.
Purely speculation.
My opinion is that these share price values seem high. Maybe even 10X high.
MM