BornAtNight - just posted an answer on your question. The Form 4 filings are acknowledgement of the director's receipt of stock options @ $4.35 and RSUs (restricted stock units, which carry a cost of $0).
Details are provided in the recent 8-K filing on page 2, fifth paragraph: Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. (d)