14. Income Taxes

The components of loss before income taxes are as follows (in thousands):

 

 

 

Years Ended December 31,

 

 

 

2025

 

 

2024

 

Domestic

 

$

(47,917

)

 

$

(142,819

)

Foreign

 

 

(10,377

)

 

 

(10,548

)

Loss before benefit for income taxes

 

$

(58,294

)

 

$

(153,367

)

 

The benefit for income taxes consists of the following (in thousands):

 

 

 

Years Ended December 31,

 

 

 

2025

 

 

2024

 

Current:

 

 

 

 

 

 

Federal

 

$

 

 

$

 

State

 

 

 

 

 

 

Foreign

 

 

(90

)

 

 

(269

)

Total current

 

 

(90

)

 

 

(269

)

Deferred:

 

 

 

 

 

 

Federal

 

 

 

 

 

 

State

 

 

 

 

 

 

Foreign

 

 

 

 

 

 

Total deferred

 

 

 

 

 

 

Benefit from income taxes

 

$

(90

)

 

$

(269

)

 

A reconciliation of the benefit for income taxes to the amount computed by applying the 21% statutory U.S. federal income tax rate to income before income taxes for the year ended December 31, 2025, after the adoption of ASU 2023-09, is as follows:

 

 

Years Ended December 31, 2025

 

 

Amount

 

 

%

 

Tax at statutory federal rate

$

(12,242

)

 

 

21.0

 %

State tax, net of federal benefit

 

 

 

 

%

Foreign Tax Effects

 

 

 

 

 

Foreign Rate Differential – Cayman Islands

 

2,110

 

 

 

(3.6

)%

Foreign Rate Differential – Finland

 

76

 

 

 

(0.1

)%

Effect of cross-border tax laws

 

 

 

 

 

Global intangible low-taxed income

 

62,730

 

 

 

(107.6

)%

Other

 

(90

)

 

 

0.2

 %

Tax credits

 

578

 

 

 

(1.0

)%

Change in valuation allowance

 

(59,391

)

 

 

101.9

 %

Worldwide changes in unrecognized tax benefits

 

(180

)

 

 

0.3

 %

Nondeductible items

 

 

 

 

 

Stock based compensation

 

5,591

 

 

 

(9.6

)%

Disallowed interest

 

448

 

 

 

(0.8

)%

Other

 

9

 

 

 

%

Other

 

271

 

 

 

(0.5

)%

Total

$

(90

)

 

 

0.2

 %

The following is the reconciliation between the statutory federal income tax rate and the Company’s effective tax rate for year ended in December 31, 2024, prior to the adoption of ASU 2023-09, is as follows:

 

 

Years Ended December 31,

 

 

2024

 

Tax at statutory federal rate

 

21.0

 %

State tax

 

%

Stock-based compensation expense

 

(3.2

)%

Net operating losses not benefitted

 

(13.9

)%

Foreign net operating losses not benefitted

 

(1.4

)%

Deduction limitation on executive compensation

 

%

Global intangible low-taxed income

 

(2.1

)%

Other

 

(0.2

)%

Total

 

0.2

 %

 

Significant components of the Company’s deferred tax assets are as follows (in thousands):

 

 

 

December 31,

 

 

 

2025

 

 

2024

 

Federal and state net operating loss carryforwards

 

$

173,195

 

 

$

206,365

 

Tax credit carryforwards

 

 

128,924

 

 

 

129,320

 

Foreign net operating loss carryforwards

 

 

112

 

 

 

120

 

Capitalized research and development expenses

 

 

64,293

 

 

 

83,329

 

Stock-based compensation

 

 

2,128

 

 

 

6,365

 

Lease obligations

 

 

12

 

 

 

22

 

Reserves and accruals

 

 

4,760

 

 

 

4,418

 

Deferred revenue

 

 

 

 

 

7,785

 

Intangible assets

 

 

14,135

 

 

 

15,036

 

Other

 

 

6

 

 

 

 

Subtotal

 

 

387,565

 

 

 

452,760

 

Less: Valuation allowance

 

 

(387,555

)

 

 

(452,740

)

Net deferred tax assets

 

 

10

 

 

 

20

 

 

 

 

 

 

 

 

Fixed assets

 

 

(10

)

 

 

(20

)

Non-deductible accrued expenses

 

 

 

 

 

 

Net deferred tax liabilities

 

 

(10

)

 

 

(20

)

Total net deferred tax assets

 

$

 

 

$

 

A valuation allowance has been provided to reduce the deferred tax assets to an amount management believes is more likely than not to be realized. Expected realization of the deferred tax assets for which a valuation allowance has not been recognized is based on upon the reversal of existing temporary differences and future taxable income.

The valuation allowance decreased by $65.2 million for the year ended December 31, 2025 and increased by $26.4 million for the years ended December 31, 2024. Due to uncertainty surrounding the realization of the favorable tax attributes in the future tax returns, the Company has established a valuation allowance against its otherwise recognizable net deferred tax assets.

The Company intends to continue maintaining a full valuation allowance on its deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of this allowance.

At December 31, 2025, the Company had net operating loss carryforwards available to offset future taxable income of approximately $787.4 million and $145.4 million for federal and state tax purposes, respectively. $140.5 million of the federal net operating loss carryforwards will begin to expire in 2035 if not utilized, while the remainder can be carried forward indefinitely. The state net operating loss carryforward will begin to expire in 2031 if not utilized. The Company also had foreign net operating loss carryforwards of approximately $0.6 million, which expire between 2026 and 2034 if not utilized.

At December 31, 2025, the Company had approximately $153.8 million of federal and $53.7 million of California research and development tax credit and other tax credit carryforwards available to offset future taxable income. The federal credits begin to expire in 2026 and the California research credits have no expiration dates.

Federal and state tax laws impose substantial restrictions on the utilization of net operating loss and credit carryforwards in the event of an “ownership change” for tax purposes, as defined in Internal Revenue Code (“IRC”) Section 382. The Company performed an IRC Section 382 analysis and has determined that there were no ownership changes as of December 31, 2024. Thus, IRC Section 382 will not limit the use of the Company’s net operating loss and tax credit carryforwards. The Company will continue to monitor trading activities in its shares which could cause ownership change in future years.

On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was signed into law. The OBBBA makes permanent key elements of the Tax Cuts and Jobs Act, including restoring 100% bonus depreciation, eliminating the capitalization requirement for domestic research and experimentation, and changing the business interest expense limitation. ASC 740 requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation was enacted in the third quarter of 2025. The provisions do not have a material impact on the Company’s financial statements.

Uncertain Tax Positions

The Company had unrecognized tax benefits of approximately $74.5 million as of December 31, 2025. Approximately $0.4 million of unrecognized tax benefits, if recognized, would affect the effective tax rate. The interest accrued as of December 31, 2025 and 2024 was immaterial.

A reconciliation of the beginning and ending amounts of unrecognized income tax benefits during the two years ended December 31, 2025 is as follows (in thousands):

 

 

 

Federal and State

 

Balance as of December 31, 2023

 

$

70,710

 

Decrease due to prior positions

 

 

(156

)

Increase due to current year position

 

 

3,920

 

Foreign exchange rate differential

 

 

(153

)

Balance as of December 31, 2024

 

 

74,321

 

Decrease due to prior positions

 

 

(229

)

Increase due to current year position

 

 

372

 

Foreign exchange rate differential

 

 

 

Balance as of December 31, 2025

 

$

74,464

 

Unrecognized tax benefits may change during the next twelve months for items that arise in the ordinary course of business.

The Company classifies interest and penalties as a component of tax expense, if any.

The Company files income tax returns in the U.S. federal jurisdiction, U.S. state and other foreign jurisdictions. The U.S. federal and U.S. state taxing authorities may choose to audit tax returns for tax years beyond the statute of limitation period due to significant tax attribute carryforwards from prior years, making adjustments only to carryforward attributes. The foreign statute of limitation generally remains open from 2015 to 2025. The Company is not currently under audit in any tax jurisdiction. The Company did not have any cash payment for income taxes for the years ended December 31, 2025 and 2024.

Historical Timeline

Fiscal YearFiled
2025Mar 16, 2026Showing above
2024Mar 17, 2025
2023Feb 26, 2024
2022Feb 27, 2023
2021Feb 28, 2022
2020Mar 1, 2021
2019Mar 2, 2020
2018Feb 27, 2019
2017Feb 27, 2018
2016Mar 1, 2017
2015Feb 29, 2016

About Income Taxes Disclosures

The income tax disclosure reveals how much a company actually pays in taxes versus what the statutory rate would predict. Analysts focus on the effective tax rate (ETR) reconciliation, which breaks down every item driving the gap between the 21% federal rate and the company's reported ETR — including R&D credits, foreign rate differentials, and state taxes. Deferred tax assets (DTAs) and their valuation allowances signal management's confidence in future profitability: a rising allowance suggests the company doubts it can use accumulated tax benefits. Uncertain tax benefit (UTB) reserves quantify exposure to IRS challenges on aggressive positions.

Key signals to watch: sudden ETR drops without clear operational reasons, large increases in valuation allowances, growing UTB balances, and significant unremitted foreign earnings. Post-TCJA, pay attention to GILTI and BEAT provisions that affect multinational tax structures. Compare the cash taxes paid (from the cash flow statement) against the income tax provision to gauge earnings quality.