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v3.21.1

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) | Total | SG Blocks Stockholders' Equity | 0.01 Par Value Common Stock | Additional Paid-in Capital | Accumulated Deficit | Non-controlling interests
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2019 | $ 4,360,149 | $ 4,360,149 | $ 11,579 | $ 21,932,387 | $ (17,583,817) |
Beginning Balance, Shares at Dec. 31, 2019 |  |  | 1,157,890 |  |  |
Stock-based compensation | 38,764 | 38,764 |  | 38,764 |  |
Conversion of restricted stock units to common stock |  |  | $ 126 | (126) |  |
Conversion of restricted stock units to common stock, Shares |  |  | 12,672 |  |  |
Reverse stock split settlement |  | (122) |  |  |  |
Conversion of debt exchange to common stock | (122) |  |  | (122) |  |
Conversion of debt exchange to common stock, shares |  |  | (38) |  |  |
Net loss | (747,427) | (747,427) |  |  | (747,427) |
Ending Balance, Shares at Mar. 31, 2020 |  |  | 1,170,524 |  |  |
Ending Balance at Mar. 31, 2020 | 3,651,364 | 3,651,364 | $ 11,705 | 21,970,903 | (18,331,244) |
Beginning Balance at Dec. 31, 2020 | 18,437,823 | 18,253,256 | $ 85,962 | 40,443,840 | (22,276,546) | 184,567
Beginning Balance, Shares at Dec. 31, 2020 |  |  | 8,596,189 |  |  |
Stock-based compensation | 286,186 | 286,186 |  | 286,186 |  |
Conversion of restricted stock units to common stock | 703,438 | 703,438 | $ 2,251 | 701,187 |  |
Conversion of restricted stock units to common stock, Shares |  |  | 225,100 |  |  |
Net loss | (1,144,350) | (2,033,877) |  |  | (2,033,877) | 889,527
Ending Balance, Shares at Mar. 31, 2021 |  |  | 8,821,289 |  |  |
Ending Balance at Mar. 31, 2021 | $ 18,283,097 | $ 17,209,003 | $ 88,213 | $ 41,431,213 | $ (24,310,423) | $ 1,074,094

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