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Income Taxes | 12 Months Ended
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Sep. 30, 2025
Income Tax Disclosure [Abstract] |
Income Taxes | INCOME TAXES Income Tax Provision (Benefit) The components of the income (loss) before income tax expense and noncontrolling interest are as follows:
| Year Ended September 30,
| 2025 |  | 2024 |  | 2023
| (in thousands)
Domestic | $ | (42,573) |  |  | $ | (582,333) |  |  | $ | (194,639) |
Foreign | 94,106 |  |  | (30,127) |  |  | (7,852) |
Total | $ | 51,533 |  |  | $ | (612,460) |  |  | $ | (202,491) |
Income tax provision (benefit) consisted of the following components:
| Year Ended September 30,
| 2025 |  | 2024 |  | 2023
| (in thousands)
Current: |  |  |  |  |
Federal | $ | 21,440 |  |  | $ | 148 |  |  | $ | 1,074 |
State | (56) |  |  | 375 |  |  | 1,710 |
Foreign | 35 |  |  | (3,290) |  |  | — |
Total current tax | $ | 21,419 |  |  | $ | (2,767) |  |  | $ | 2,784 |
Deferred: |  |  |  |  |
Federal | $ | — |  |  | $ | — |  |  | $ | — |
State | — |  |  | — |  |  | — |
Foreign | — |  |  | — |  |  | — |
Total deferred tax | $ | — |  |  | $ | — |  |  | $ | — |
Income tax provision | $ | 21,419 |  |  | $ | (2,767) |  |  | $ | 2,784 |
The following table presents a reconciliation of the tax expense based on the statutory rate to the Company’s actual tax expense in the consolidated statements of operations and comprehensive income (loss). A notional 21% tax rate was applied as follows:
| September 30,
| 2025 |  | 2024 |  | 2023
U.S. federal statutory income tax | 21.0 | % |  | 21.0 | % |  | 21.0 | %
State income taxes, net of federal tax benefit | (3.1) | % |  | 2.6 | % |  | 0.4 | %
Tax credits | (44.4) | % |  | 3.0 | % |  | 6.8 | %
Permanent and other items | (37.9) | % |  | 2.5 | % |  | (4.6) | %
Non-deductible compensation | 5.1 | % |  | (0.9) | % |  | (4.6) | %
Foreign-derived intangible income deduction | (16.2) | % |  | — | % |  | 1.2 | %
Other income | 11.1 | % |  | — | % |  | — | %
Stock compensation | 10.7 | % |  | (0.7) | % |  | (1.1) | %
Valuation allowance | 95.4 | % |  | (27.0) | % |  | (20.5) | %
Effective income tax rate | 41.7 | % |  | 0.5 | % |  | (1.4) | %
Deferred Income Taxes The following table presents the significant components of the Company’s net deferred tax assets and liabilities:
| September 30, |
| 2025 |  | 2024 |
| (in thousands) |
Deferred tax assets: |  |  |  |
Net operating loss carryforwards | $ | 70,858 |  |  | $ | 102,716 |  |
Capitalized research and development | 232,360 |  |  | 156,015 |  |
Tax credits | 48,867 |  |  | 85,428 |  |
Deferred revenue | 171,262 |  |  | 81,556 |  |
Lease liabilities | 23,919 |  |  | 27,999 |  |
Stock compensation | 9,184 |  |  | 10,989 |  |
Accrued compensation | 4,254 |  |  | 4,078 |  |
Intangible assets | 1,034 |  |  | 1,384 |  |
Other | 948 |  |  | 2,843 |  |
Total gross deferred tax assets | $ | 562,686 |  |  | $ | 473,008 |  |
Valuation allowance | $ | (497,543) |  |  | $ | (448,867) |  |
Deferred tax liabilities: |  |  |  |
Fixed assets | $ | (30,503) |  |  | $ | (13,155) |  |
Right-of-use assets | (9,424) |  |  | (10,792) |  |
Unrealized gains | (630) |  |  | (194) |  |
Original Issue Discount | (24,586) |  |  | — |  |
Total gross deferred tax liability | $ | (65,143) |  |  | $ | (24,141) |  |
Net deferred tax assets (liabilities) | $ | — |  |  | $ | — |  |
A valuation allowance is recorded to reduce deferred tax assets to the amount that is more likely than not to be realized based on an assessment of positive and negative evidence, including estimates of future taxable income necessary to realize future deductible amounts. A significant piece of objective negative evidence evaluated was the cumulative loss incurred over the three-year period ended September 30, 2025. Such objective evidence limits the ability to consider other subjective evidence such as its projections for future growth. On the basis of this evaluation at September 30, 2025 and 2024, a valuation allowance of $497.5 million and $448.9 million, respectively, has been recorded. As of September 30, 2025, the Company had accumulated federal, state, and foreign net operating loss (“NOL”) carryforwards of $20.6 million, $815.5 million and $46.3 million, respectively. Of the $20.6 million in federal NOL carryforwards, $20.6 million was generated before January 1, 2018, and is subject to a 20-year carryforward period (“pre-Tax Act losses”), with expiration beginning in 2031. Of the $815.5 million in state NOL carryforwards, $2.7 million can be carried forward indefinitely, while the remaining balance begins to expire in 2031. The Company also has foreign NOL carryforwards totaling $46.3 million, which begin to expire in 2027. Additionally, the Company has federal and state income tax credits of $49.4 million and $26.3 million, respectively. The federal credits begin to expire in 2041. Of the state income tax credits, $13.6 million begins to expire in 2035, while the remaining credits can be carried forward indefinitely. Pursuant to Sections 382 and 383 of the Internal Revenue Code of 1986, as amended (the “Code”), the annual use of an entity’s NOL and research and development credit carryforwards may be limited if there is a cumulative ownership change of greater than 50% within a three-year period. The annual limitation is determined based on the entity’s value immediately prior to the ownership change. Future ownership changes could further affect the limitation. If a limitation is applied, the related tax asset would be removed from the deferred tax asset schedule, with a corresponding reduction in the valuation allowance. To date, the Company has completed an analysis pursuant to Sections 382 and 383 through September 30, 2024. Ownership Changes may have occurred since then, and future changes could potentially limit the Company’s ability to utilize these attributes. Uncertainty in Income Taxes The Company has adopted guidance issued by the FASB that clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements and prescribes a recognition threshold of more-likely-than not and a measurement process for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In making this assessment, a company must determine whether it is more-likely-than not that a tax position will be sustained upon examination, based solely on the technical merits of the position and must assume that the tax position will be examined by taxing authorities. The following table summarizes the Company’s gross unrecognized tax benefits:
| Year Ended September 30,
| 2025 |  | 2024 |  | 2023
| (in thousands)
Beginning balance of unrecognized tax benefits | $ | 16,613 |  |  | $ | 14,536 |  |  | $ | 3,481 |
Gross increase for prior period tax positions | 1,160 |  |  | 654 |  |  | 9,495 |
Gross decrease for prior period tax positions | — |  |  | — |  |  | (1,489) |
Gross increase for current period tax positions | 4,379 |  |  | 3,415 |  |  | 3,049 |
Lapse of statue of limitations | — |  |  | (1,992) |  |  | — |
Ending balance of unrecognized tax benefits | $ | 22,152 |  |  | $ | 16,613 |  |  | $ | 14,536 |
The Company has recorded income tax (benefit) expense of $0 and $3.3 million for the years ended September 30, 2025 and 2024, respectively, related to uncertain tax positions inclusive of interest and penalties. The Company’s policy is to recognize potential interest and penalties related to unrecognized tax benefits associated with uncertain tax positions, if any, in the income tax provision. As of September 30, 2025, the Company has not accrued any interest or penalties. If the unrecognized tax benefit as of September 30, 2025 is ultimately recognized, there would be no reduction in the Company’s income tax expense or effective tax rate, excluding the impact of U.S. Tax benefits netted against deferred taxes that are subject to a valuation allowance. The Company does not anticipate any changes in its unrecognized tax benefits over the next 12 months. The Company is subject to taxation in the U.S. and various states along with other foreign countries. Due to the presence of NOL carryforwards, all of the income tax years remain open for examination. The Company is currently under audit by the IRS for September 30, 2023. California income tax examination has been closed. There are no other audits in any other jurisdictions. The Company analyzes undistributed earnings of each foreign subsidiary and has determined that no withholding taxes are applicable to earnings which are currently available for distribution. No additional deferred tax liability has been recorded as the parent entity would not be required to include the distribution into income under the current law. The Tax Cuts and Jobs Act subjects a U.S. shareholder to tax on Global Intangible Low-Taxed Income (“GILTI”) earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740 No. 5. Accounting for GILTI, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense related to GILTI in the year that the tax is incurred as a period expense only. The Company has elected to account for GILTI in the year the tax is incurred. On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions. The legislation has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. ASC 740, "Income Taxes", requires the effects of changes in tax rates and laws to be recognized in the period in which the legislation is enacted. The Company has implemented OBBBA in the fourth quarter of the current year.

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