Warrants

12 Months Ended

Dec. 31, 2018

Warrants

Warrants

12. Warrants

Warrants outstanding and warrant activity for the year ended December 31, 2018 are as follows:

Description	Classification		Exercise Price		Expiration Date	Warrants Issued		Warrants Exercised			Warrants Cancelled/ Expired			Balance December 31, 2017		Balance December 31, 2018
Private Placement Warrants, issued January 25, 2017		Equity	$	4.69	June 2022		855,000		-			-			855,000		855,000
RedPath Warrants, issued March 22, 2017		Equity	$	4.69	September 2022		100,000		-			-			100,000		100,000
Pre-Funded Warrants, issued June 21, 2017		Liability	$	0.01	None		2,600,000		(2,600,000	)		-			-		-
Underwriters Warrants, issued June 21, 2017		Liability	$	1.32	December 2022		575,000		-			(40,000	)		535,000		535,000
Base & Overallotment Warrants, issued June 21, 2017		Equity	$	1.25	June 2022		14,375,000		(5,672,852	)		-			8,702,148		8,702,148
Vendor Warrants, issued August 6, 2017		Equity	$	1.25	August 2020		150,000		-			-			150,000		150,000
Warrants issued October 12, 2017		Equity	$	1.80	April 2022		3,200,000		-			-			3,200,000		3,200,000
							21,855,000		(8,272,852	)		(40,000	)		13,542,148		13,542,148