CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 29,903	$ 49,351
Marketable securities	210,883	212,798
Prepaid expenses and other current assets	3,490	5,137
Total current assets	244,276	267,286
Property and equipment, net	1,509	1,080
Right-of-use assets	91	119
Other assets	50	50
Total assets	245,926	268,535
Current liabilities:
Accounts payable	4,245	5,335
Accrued expenses	6,106	5,545
Operating lease liability, current	130	171
Total current liabilities	10,481	11,051
Share repurchase liability	23	42
Total liabilities	10,504	11,093
Commitments and contingencies (Note 9)
Stockholders' equity (deficit)
Undesignated preferred stock, $0.0001 par value, 10,000,000 shares authorized and zero issued and outstanding as of March 31, 2025 and 10,000,000 shares authorized and zero issued and outstanding as of December 31, 2024	0	0
Common stock, $0.0001 par value, 500,000,000 shares authorized and 33,424,371 issued and outstanding as of March 31, 2025 and 500,000,000 shares authorized and 33,421,525 issued and outstanding as of December 31, 2024	5	5
Additional paid-in-capital	396,749	394,887
Accumulated deficit	(161,385)	(137,505)
Accumulated other comprehensive income	53	55
Total stockholders' equity	235,422	257,442
Total liabilities and stockholders' equity	$ 245,926	$ 268,535

Share repurchase liability.

No definition available.

Name:	mbx_ShareRepurchaseLiability
Namespace Prefix:	mbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).