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v3.23.3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOW - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Cash flows from operating activities: |  |
Net loss | $ (98,123) | $ (85,838)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 2,249 | 2,223
Amortization and premium of marketable securities, net | (4,043) | 1,366
Loss on sale or disposal of assets |  | 1
Gain on fair value remeasurement of contingent consideration | 0 | (6,862)
Stock-based compensation expense | 16,678 | 11,103
Changes in operating assets and liabilities: |  |
Accounts and other receivables | 95 | (17)
Prepaid and other current assets | 1,757 | (7,928)
Other assets | (3) |
Accounts payable and accrued expenses | 5,507 | 720
Other liabilities | 1,125 | 3,262
Net cash used in operating activities | (74,758) | (81,970)
Cash flows from investing activities: |  |
Sales and maturities of marketable securities | 249,703 | 192,866
Purchases of marketable securities | (183,172) | (132,613)
Acquisition of property and equipment | (1,152) | (1,593)
Proceeds from sale or disposal of assets |  | 69
Net cash provided by investing activities | 65,379 | 58,729
Cash flows from financing activities: |  |
Proceeds from issuance of stock from employee benefit plans | 1,084 | 2,681
Net cash provided by financing activities | 1,084 | 2,681
Net decrease in cash and cash equivalents | (8,295) | (20,560)
Cash and cash equivalents at beginning of period | 29,429 | 39,143
Cash and cash equivalents at end of period | 21,134 | 18,583
Non-cash investing activities |  |
Accrued construction in progress | $ 488 | $ 38

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition Amount of increase (decrease) in the value of right to a contingent consideration asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479581/805-30-50-4 + Details
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