CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	[1]
Current assets:
Cash and cash equivalents	$ 88,105	$ 168,198
Short-term investments	232,939	42,008
Prepaid expenses and other current assets	7,794	2,072
Total current assets	328,838	212,278
Property and equipment, net	89	130
Other assets	147	2,300
Long-term investments	124,330
Total assets	453,404	214,708
Current liabilities:
Accounts payable	2,024	9,679
Accrued expenses and other current liabilities	5,839	4,641
Total current liabilities	7,863	14,320
Long-term liabilities:
Deferred rent	67	74
Total liabilities	7,930	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 September 30, 2021, respectively; 29,831,125 and 43,660,909 shares issued and outstanding as of December 31, 2020 and September 30, 2021, respectively.	4	3
Additional paid-in capital	569,835	292,348
Accumulated other comprehensive loss	(58)	(2)
Accumulated deficit	(126,395)	(93,339)
Total Cullinan stockholders' equity	443,386	199,010
Noncontrolling interests	2,088	1,304
Total stockholders' equity	445,474	200,314	[2]
Total liabilities and stockholders' equity	$ 453,404	$ 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 unaudited consolidated financial statements for additional details.

[2] The consolidated balance sheet as of December 31, 2020 is derived from the audited consolidated financial statements as of such 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 unaudited consolidated financial statements for additional details.