Derivative Liabilities are Section 6 of the 10K filing, starting on Page F-13, on the next page F-14 “Investor Note” it states
The $34.9m balance from the notes is the number listed on the Current Liabilities section of the Income Statement. The entire Derivative Liability is from that one sale on Dec 7. In Q3 the company only had $79k in Derivative Liabilities, hence the dramatic change in gains.