CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	[1]
Current assets:
Cash and cash equivalents	$ 293,537	$ 168,198
Prepaid expenses and other current assets	6,419	2,072
Short term investments	147,337	42,008
Total current assets	447,293	212,278
Property and equipment, net	115	130
Other assets	147	2,300
Long term investments	32,111
Total assets	479,666	214,708
Current liabilities:
Accounts payable	3,879	9,679
Accrued expenses and other current liabilities	6,015	4,641
Total current liabilities	9,894	14,320
Long-term liabilities:
Deferred rent	73	74
Total liabilities	9,967	14,394
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $0.0001 par value, 34,900,878 and 150,000,000 shares authorized as of December 31, 2020 and March 31, 2021, respectively; 29,381,125 and 43,516,125 shares issued and outstanding as of December 31, 2020 and March 31, 2021, respectively	4	3
Additional paid-in capital	560,366	292,348
Accumulated other comprehensive loss	(60)	(2)
Accumulated deficit	(93,409)	(93,339)
Total Cullinan stockholders' equity	466,901	199,010
Noncontrolling interests	2,798	1,304
Total stockholders' equity	469,699	200,314	[2]
Total liabilities and stockholders' equity	$ 479,666	$ 214,708

[1] The consolidated balance sheet as of December 31, 2020 is derived from the audited consolidated financial statements as of that date and was retroactively adjusted, including shares and per share amounts, as a result of the Reorganization and Reverse Stock Split. See Note 3 to the consolidated financial statements for additional details.

[2] The consolidated balance sheets as of December 31, 2019 and 2020 are derived from the audited consolidated financial statements as of those dates and were retroactively adjusted, including shares and per share amounts, as a result of the Reorganization and Reverse Stock Split. Changes in stockholders’ equity for the three months ended March 31, 2020 were also retroactively adjusted, including shares and per share amounts, as a result of the Reorganization and Reverse Stock Split. See Note 3 to the consolidated financial statements for additional details.