SUBSEQUENT EVENTS	3 Months Ended
Mar. 31, 2018
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	15. SUBSEQUENT EVENTS On April 16, 2018 the Company effected a reverse stock split of the Company’s common stock, par value $0.00001 per share, at a ratio of 1-for-25. As a result of the reverse stock split, every 25 shares of the issued and outstanding common stock were automatically converted into one newly issued and outstanding share of common stock, without any change in the par value per share. Any fractional shares resulting from the reverse stock split have been rounded up to the nearest whole share. In connection with the reverse stock split, the Company correspondingly reduced the number of authorized shares of common stock from 100,000,000 to 4,000,000. Throughout this report, the reverse stock split was retroactively applied to all periods presented. Effective May 3, 2018, the Company assigned the Cambridge Lease to a third party, who assumed all of the Company’s remaining rights and obligations under the lease including the Moderna Sublease. In connection with the anticipated lease assignment, the Company wrote off certain furniture, fixtures and equipment (including laboratory equipment) and recorded an impairment charge of $48 for the three months ended March 31, 2018. On the same date as the lease assignment, the Company entered into a sublease for 5,104 square feet of space, originally part of the Cambridge Lease, from the third party to which the Company assigned the Cambridge Lease. The sublease ends on October 31, 2023 and contains a rent holiday and rent escalation clauses. In order to obtain the consent of MassDev for these facility changes and the sale of certain assets, the Company agreed to pay down $300 of principal on the MassDev loan. In connection with the lease assignment and the sublease, our $311 standby letter of credit in favor of a landlord, recorded as restricted cash, will be terminated and a new standby letter of credit will be established for $40 and recorded as restricted cash. Also, the $55 security deposit under the Moderna Sublease, classified as a component of accrued expenses, will be transferred to the party to which the Company assigned the Cambridge Lease. In May 2018, we entered into a warrant amendment agreement with the sole remaining holder of our Outstanding 2014 Warrants. The warrant holder received cash compensation of $19 and a two year extension of warrant term in exchange for the removal of all anti-dilution provisions except those for stock splits, reverse splits or stock dividends. There are no remaining Outstanding 2014 Warrants that contain anti-dilution provisions that may be triggered by the future issuance by us of shares of our common stock or common stock equivalents at a price per share below the then-exercise price of the warrants.

15. SUBSEQUENT EVENTS

On April 16, 2018 the Company effected a reverse stock split of the Company’s common stock, par value $0.00001 per share, at a ratio of 1-for-25. As a result of the reverse stock split, every 25 shares of the issued and outstanding common stock were automatically converted into one newly issued and outstanding share of common stock, without any change in the par value per share. Any fractional shares resulting from the reverse stock split have been rounded up to the nearest whole share. In connection with the reverse stock split, the Company correspondingly reduced the number of authorized shares of common stock from 100,000,000 to 4,000,000. Throughout this report, the reverse stock split was retroactively applied to all periods presented.

Effective May 3, 2018, the Company assigned the Cambridge Lease to a third party, who assumed all of the Company’s remaining rights and obligations under the lease including the Moderna Sublease. In connection with the anticipated lease assignment, the Company wrote off certain furniture, fixtures and equipment (including laboratory equipment) and recorded an impairment charge of $48 for the three months ended March 31, 2018. On the same date as the lease assignment, the Company entered into a sublease for 5,104 square feet of space, originally part of the Cambridge Lease, from the third party to which the Company assigned the Cambridge Lease. The sublease ends on October 31, 2023 and contains a rent holiday and rent escalation clauses. In order to obtain the consent of MassDev for these facility changes and the sale of certain assets, the Company agreed to pay down $300 of principal on the MassDev loan. In connection with the lease assignment and the sublease, our $311 standby letter of credit in favor of a landlord, recorded as restricted cash, will be terminated and a new standby letter of credit will be established for $40 and recorded as restricted cash. Also, the $55 security deposit under the Moderna Sublease, classified as a component of accrued expenses, will be transferred to the party to which the Company assigned the Cambridge Lease.

In May 2018, we entered into a warrant amendment agreement with the sole remaining holder of our Outstanding 2014 Warrants. The warrant holder received cash compensation of $19 and a two year extension of warrant term in exchange for the removal of all anti-dilution provisions except those for stock splits, reverse splits or stock dividends. There are no remaining Outstanding 2014 Warrants that contain anti-dilution provisions that may be triggered by the future issuance by us of shares of our common stock or common stock equivalents at a price per share below the then-exercise price of the warrants.