15. Related-Party Transactions

World Wrestling Entertainment (WWE) and Cisco Systems (Cisco) are investors in the Company’s Series E Preferred Stock. WWE and Cisco are also customers of the Company. The following table sets forth the net revenues generated for the year ended December 31, 2018 and 2017, as well as the accounts receivable balances as of December 31, 2018 and 2017 for WWE and Cisco:

As consideration for the Transfer Sponsor Warrants transferred to Phunware shareholders, a promissory note was issued to the Sponsors (the “Transfer Sponsor Warrant Note”). The amount of the note was approximately $1,993, which represented $0.50 per warrant transferred to former stockholders of Phunware. The Transfer Sponsor Warrant Note bears no interest. The Transfer Sponsor Warrants have an exercise price of $11.50 per share. The Transfer Sponsor Warrant Note shall mature on December 26, 2019. The Transfer Sponsor Warrant Note was subsequently waived and forgiven by the noteholders. 

With the Reverse Merger and Recapitalization, the Company assumed $255 in payables from Stellar for Nautilus Energy Management Corporation, an affiliate of two members of the Company’s board of directors.