I would buy a little at the 200 ($1.42), then buy some at $1.35, then if possible buy at $1.28. If the market lets it, Pip will return to at least $1.60 at the end of the 2nd qtr.
Pip has had good news before, but it is easy to pin because of the share price. Play the volatility. Keep a position, if you think it is a long term bet, from the profits. Pip is trading above it's 50 day and it's BV. Until Pip or Siga sell something or receives some Barda money, they aren't going to sustain much upward pressure.