The Company has issued shares of Common Stock and Preferred Stock as payments of principal (including certain early repayments at the option of the holders) and effected a retirement under the Notes and New Notes as follows:

	Number of Shares of Common Stock		Number of Shares of Preferred Stock		Applicable Conversion Price		Reduction in Principal
January 12, 2017		11,753		—	$	126.00	$	1,478,318
January 26 - February 1, 2017¹		4,857		—	$	112.00	$	544,000
February 10, 2017		43,882		—	$	70.00	$	3,045,817
February 23 - March 2, 2017¹		2,571		—	$	49.00	$	125,999
March 13, 2017		117,297		—	$	38.50	$	4,417,829
April 10, 2017		169,061		—	$	21.00	$	3,621,286
May 9, 2017		109,367		—	$	17.50	$	1,913,915
June 7 / July 2, 2017 Exchange Agreement²		689,796		4,200	$	6.09	$	4,200,000
July 7, 2017		114,286		—	$	17.50	$	2,000,000
August 4, 2017		38,906		—	$	24.50	$	1,015,848
August 28, 2017 Restructuring Agreement³		117,171		—	$	10.50	$	1,200,000
November 6, 2017 Warrant Exchange⁴		—		—	$	—	$	279,016
November 15, 2017 Exchange Agreements⁵		97,448,072		—	$	0.08	$	8,130,564
Retirement per December 28, 2017 Exchange Agreements⁶		—		—	$	—	$	553,234
December 28, 2017 Exchange Agreements⁶		123,708,735		—	$	0.02	$	2,474,174
Total		222,575,755					$	35,000,000

¹During the periods referenced above, the Company and the holders of the Notes agreed to a temporary reduction in the conversion price in order to encourage voluntary conversion of Notes by the holders thereof.

² On July 2, 2017, the Company entered into an exchange agreement with one of its investors which had purchased Notes, for $4.2 million aggregate principal amount of such Notes for 4,200 shares of Series A Preferred Stock. The Series A Preferred Stock shares were issued to address a short-term valuation issue for 689,796 common shares delivered to the Notes holders to close an installment period. Through the Series A Preferred Shares placement, the Company was able to value the open installment shares such that the amount of debt remaining under the Notes was reduced by $4.2 million. Additionally, the Company recognized a loss on debt settlement of $1.0 million related to this transaction.

³On August 28, 2017, the Company entered into a restructuring agreement with one of its investors which had purchased Notes. The restructuring agreement included a provision to exchange 117,171 shares for $1.2 million aggregate principal amount of such Notes. Additionally, the Company recognized a loss on debt settlement of $1.9 million related to this transaction.

⁴On October 10, 2017, the Company entered into an amendment to the August 28, 2017 Restructuring Agreement which included a provision to exchange debt for the issuance of warrants. Additionally, the Company recognized a loss on debt extinguishment of $2.3 million.

⁵On November 15, 2017, the Company entered into an exchange agreement which included a provision to exchange 973,764 shares for $0.6 million aggregate principal amount of such Notes. Additionally, the Company issued 96.5 million shares for $7.5 million aggregate principal amount of Notes under the updated conversion price formula as discussed in more detail above. Additionally, the Company recognized a loss on debt extinguishment of $21.0 million in connection with the issuance of the New Notes and warrants as part of such exchange.

⁶On December 28, 2017, the Company entered into an exchange agreement to retire $0.6 million aggregate principal amount of Notes and to issue 123.7 million shares and rights for shares for the remaining $2.5 million aggregate principal amount of Notes. Additionally, the Company recognized a loss on debt extinguishment of $3.7 million.