I've never had warrants either. Personally, I wouldn't hold them. I assume you already know the Q at the end of the symbol means they're in bankruptcy. The E means they were delinquent in SEC filings, specifically they failed to comply with NASD 6530.
I no longer have a position in Biopure. I was an investor since 2003 and sold a year ago. I lost a few grand, but I did get a securities litigation settlement check. It was almost 10% of my investment.
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