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Statements of Stockholders’ Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Subscriptions Receivable | Accumulated Loss
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2015 |  | 6,661,000 |  |  |
Beginning balance at Dec. 31, 2015 | $ (745) | $ 7 | $ 0 | $ (3) | $ (749)
Private issuance @ $3.00 / share (in shares) |  | 234,297 |  |  |
Private issuance @ $3.00 / share | 703 |  | 703 |  |
Issued for Moleculin acquisition (in shares) |  | 999,931 |  |  |
Issued for Moleculin acquisition | 5,999 | $ 1 | 5,998 |  |
Issued for technology (in shares) |  | 629,000 |  |  |
Issued for technology | 3,774 | $ 1 | 3,773 |  |
Issued for cash - IPO, net of stock issuance costs of $1,150 (in shares) |  | 1,540,026 |  |  |
Issued for cash - IPO, net of stock issuance costs of $1,150 | 8,089 | $ 1 | 8,088 |  |
Warrants issued for services | 375 |  | 375 |  |
Stock granted for services (in shares) |  | 24,000 |  |  |
Stock granted for services | 158 |  | 158 |  |
Stock-based compensation | 166 |  | 166 |  |
Issued for convertible debt (in shares) |  | 2,076,598 |  |  |
Issued for convertible debt | 364 | $ 2 | 362 |  |
Subscription agreement settled for cash | 3 |  |  | 3 |
Net loss | (3,926) |  |  |  | (3,926)
Ending balances (in shares) at Dec. 31, 2016 |  | 12,164,852 |  |  |
Ending balance at Dec. 31, 2016 | 14,960 | $ 12 | 19,623 | 0 | (4,675)
Stock granted for services (in shares) |  | 79,167 |  |  |
Stock granted for services | 89 |  | 89 |  |
Stock-based compensation | 707 |  | 707 |  |
Issued for convertible debt (in shares) |  | 2,010,640 |  |  |
Issued for convertible debt | 302 | $ 2 | 300 |  |
Issued for cash - sale of units at $1.35 per unit, net of stock issuance costs of $550 (in shares) |  | 3,710,000 |  |  |
Issued for cash - sale of units at $1.35 per unit, net of stock issuance costs of $550 | 317 | $ 4 | 313 |  |
Warrants exercised, net of issuance costs of $73 (in shares) |  | 2,728,434 |  |  |
Warrants exercised, net of issuance costs of $73 | 8,903 | $ 3 | 8,900 |  |
Issued for cash - sale of common stock in ATM offering, net of issuance costs of $166 (in shares) |  | 776,016 |  |  |
Issued for cash - sale of common stock in ATM offering, net of issuance costs of $166 | 1,645 |  | 1,645 |  |
Net loss | (9,805) |  |  |  | (9,805)
Ending balances (in shares) at Dec. 31, 2017 |  | 21,469,109 |  |  |
Ending balance at Dec. 31, 2017 | $ 17,118 | $ 21 | $ 31,577 | $ 0 | $ (14,480)

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