v3.25.2
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities:    
Net loss $ (60,477) $ (86,879)
Adjustment to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization expense 3,354 2,837
Loss on disposal of property and equipment   159
Stock-based compensation expense 3,649 2,316
Reduction in the operating right of use assets 4,963 5,428
Amortization of debt discount   1,283
Change in fair value of derivative liability   84
Accretion on marketable securities   (709)
Write-off of property and equipment 362  
Realized gain on marketable securities   (399)
Non-cash interest expense 217 139
Loss on sale of equipment 49  
Gain on sale of sale-leaseback (82)  
Changes in operating assets and liabilities:    
Prepaid expenses and other assets (3,120) 1,046
Accounts payable (1,852) 2,191
Accrued expenses (213) (2,899)
Deferred revenue (1,434) (1,046)
Operating lease liabilities (5,525) (4,941)
Other long term liabilities 192 213
Net cash used in operating activities (59,917) (81,177)
Cash flows from investing activities:    
Purchase of marketable securities   (34,460)
Proceeds from the sale of marketable securities   108,000
Purchases of property and equipment (123) (1,132)
Net cash provided by (used in) investing activities (123) 72,408
Cash flows from financing activities:    
Cash, cash equivalents and restricted cash acquired in connection with the reverse recapitalization   37,903
Payment of reverse recapitalization finance costs   (5,814)
Proceeds from the issuance of common stock in pre-closing financing   30,640
Payment of principal related to finance lease liabilities (1,429) (1,301)
Proceeds from failed sale-leaseback arrangement 686 1,183
Payment of finance liability from failed sale-leaseback arrangements (1,309) (1,069)
Payment of deferred financing costs   (146)
Proceeds from the exercise of stock options 4 187
Sale of common stock under Open Market Sales Agreement, net of issuance costs 2,392 597
Net cash (used in) provided by financing activities 344 62,180
Net decrease in cash, cash equivalents and restricted cash (59,696) 53,411
Cash, cash equivalents, and restricted cash at beginning of the year 77,605 24,194
Cash, cash equivalents and restricted cash at end of the period 17,909 77,605
Supplemental disclosures of cash flow information:    
Cash paid for interest 192 352
Supplemental disclosure of non-cash financing and investing activities:    
Conversion of convertible preferred stock and non-controlling interests upon Merger   122,204
Conversion of convertible promissory note, accrued interest and derivative liability upon Merger   42,447
Unrealized gain on marketable securities   41
Reclassification of deferred financing costs to additional paid-in-capital 9  
Right-of-use assets obtained in exchange for new financing lease liabilities 1,660  
Right-of-use assets obtained in exchange for new operating lease liabilities 6,411 $ 2,779
Modification of operating lease right-of-use asset and operating lease liabilities (1,581)  
Disposal of property and equipment in exchange for reduction in financing lease liability $ 396