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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Cash flows from operating activities: |  |
Net income | $ 34,228 | $ 44,239
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Change in estimated fair value of contingent liabilities | 1,200 | 108
Depreciation and amortization of intangible assets | 17,618 | 18,994
Amortization of premium on investments, net | (587) | (659)
Amortization of debt discount and issuance fees | 180 | 159
Non-cash income from financial royalty assets | 0 | (814)
CECL adjustment to financial royalty assets | (4,260) | 0
Impairment loss of financial royalty assets | 26,491 | 0
Gain on derivative instruments | (1,696) | 0
Losses from equity method investment in Primrose Bio | 10,382 | 0
Fair value adjustment to Primrose Bio securities investments | 25,759 | 0
Share-based compensation | 18,394 | 13,138
Deferred income taxes | (1,120) | (1,246)
Gain from short-term investments | (96,516) | (43,524)
Lease amortization expense | 982 | 897
Other | 358 | 153
Changes in operating assets and liabilities, net of acquisition: |  |
Accounts receivable | (5,587) | 2,476
Inventory | 5,121 | (10,966)
Accounts payable and accrued liabilities | 390 | (4,960)
Income tax receivable and payable | 8,486 | 16,001
Deferred revenue | (940) | (5)
Other assets and liabilities | (6,837) | (125)
Net cash provided by operating activities | 32,046 | 33,866
Cash flows from investing activities: |  |
Purchase of financial royalty assets | (4,174) | 0
Proceeds from financial royalty assets | 4,207 | 213
Purchase of short-term investments | (102,075) | (88,989)
Proceeds from sale of short-term investments | 98,908 | 88,832
Proceeds from maturity of short-term investments | 23,611 | 20,666
Cash paid for investment in Primrose Bio | (998) | 0
Cash paid for Palvella notes receivable | (2,500) | 0
Cash paid for the Agenus transaction | (75,000) | 0
Purchase of property and equipment | (513) | (2,617)
Net cash (used in) provided by investing activities | (58,534) | 18,105
Cash flows from financing activities: |  |
Repayment at maturity/repurchase of 2023 Notes | 0 | (76,854)
Payments under finance lease obligations | (9) | (26)
Net proceeds from stock option exercises and ESPP | 24,856 | 12,535
Taxes paid related to net share settlement of equity awards | (3,076) | (4,187)
Cash paid for debt issuance costs | (98) | 0
Net cash provided by (used in) financing activities | 21,673 | (68,532)
Net increase in cash and cash equivalents | (4,815) | (16,561)
Cash and cash equivalents at beginning of period | 22,954 | 45,006
Cash and cash equivalents at end of period | 18,139 | 28,445
Supplemental disclosure of cash flow information: |  |
Interest paid | 112 | 288
Taxes paid | 5,772 | 0
Supplemental schedule of non-cash activity: |  |
Addition of right-of-use assets and lease liabilities | 1,737 | 0
Accrued fixed asset purchases | 25 | 532
Unrealized (loss) gain on AFS investments, net of tax | $ (118) | $ 17

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