Revenue Recognition
In accordance with FASB’s Accounting Standards Codification (ASC) 606, Revenue from Contracts with Customers, the Company recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that the Company determines are within the scope of ASC 606, it performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation.
The Company applies the five-step model to contracts when it determines that it is probable it will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations, and assesses
whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.
In a contract with multiple performance obligations, we must develop estimates and assumptions that require judgment to determine the underlying stand-alone selling price for each distinct performance obligation which determines how the transaction price is allocated among the performance obligations. The estimation of the stand-alone selling price(s) may include estimates regarding forecasted revenues or costs, development timelines, discount rates, and probabilities of technical and regulatory success. The Company evaluates each performance obligation to determine if it can be satisfied at a point in time or over time. Any change made to estimated progress towards completion of a performance obligation and, therefore, revenue recognized will be recorded as a change in estimate. In addition, variable consideration must be evaluated to determine if it is constrained and, therefore, excluded from the transaction price.
Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in the Company’s balance sheet. Amounts expected to be recognized as revenue within the twelve months following the balance sheet date are classified as the current portion of deferred revenue. Amounts not expected to be recognized as revenue within the twelve months following the balance sheet date are classified as deferred revenue, net of current portion. As of December 31, 2025, the Company had a deferred revenue balance of $1.25 million related to the upfront option fee from Senju Pharmaceutical Co., Ltd ("Senju").
Collaboration Revenue
If a license to the Company's intellectual property is determined to be distinct from the other performance obligations identified in a contract, the Company recognizes revenues from the transaction price allocated to the license when the license is transferred to the licensee and the licensee is able to use and benefit from the license. For licenses that are bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue from the allocated transaction price. The Company evaluates the measure of progress at each reporting period and, if necessary, adjusts the measure of performance and related revenue or expense recognition as a change in estimate.
At the inception of each arrangement that includes milestone payments, the Company evaluates whether the milestones are considered probable of being reached. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within the Company's or a collaboration partner’s control, such as regulatory approvals, are generally not considered probable of being achieved until those approvals are received. At the end of each reporting period, the Company re-evaluates the probability of achievement of milestones that are within the Company's or a collaboration partner’s control, such as operational development milestones and any related constraint, and, if necessary, adjust our estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which will affect collaboration revenues and earnings in the period of adjustment. Revisions to the Company's estimate of the transaction price may also result in negative collaboration revenues and earnings in the period of adjustment.
For arrangements that include sales-based royalties, including commercial milestone payments based on the level of sales, and a license is deemed to be the predominant item to which the royalties relate, the Company will recognize revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied, or partially satisfied.
In January 2024, the Company entered into a strategic development and commercialization agreement ("License Agreement") with Théa Open Innovation ("TOI"), a sister company of the global ophthalmic specialty company Laboratoires Théa ("Théa"). Under the agreement, the Company granted TOI exclusive worldwide
development and commercialization rights, excluding certain countries in Asia, to KIO-301 for the treatment of degenerative retinal diseases (the "License"). The Company concluded that the Licensing Agreement contains one material performance obligation, the License. The transaction price includes the up-front, non-refundable payment of $16.0 million (the "License Access Fee"). The Company did not include any development or regulatory milestones in the transaction price because it is probable that changes in the estimate of receiving those milestones would result in significant reversals of cumulative revenue in future periods, due to the inherent risks and uncertainties in the drug development process. The sales-based milestones and royalties are not included in the transaction price per ASC 606-10-32-11 and ASC 606-10-55-65. There is no financing component in the License Agreement.
The initial transaction price will be allocated to the one performance obligation identified (i.e., the License), which was transferred to TOI at the execution of the License Agreement and the entire $16.0 million transaction price was recognized in the first quarter of 2024 upon the satisfaction of the license performance obligation. Variable components of consideration related to development and regulatory milestones, commercial milestones, and royalties will be allocated to the transaction price if and when they occur. When it is probable that including milestones in the transaction price will not result in significant reversals of cumulative revenue in future periods, the Company will recognize the revenue for the milestones immediately since the license performance obligation to which the milestones relate has already been fully satisfied when the change in estimate of the variable consideration occurs. Since the reimbursement for the development activities clearly relates to those activities and are accounted for under ASC 808, the Company will recognize those amounts that are due from TOI as contra-R&D expense.
The License Access Fee was earned at a point in time (first quarter of 2024) and, as a result, the associated contract costs specifically, sublicense fees, were expensed at the same point in time (first quarter of 2024). All further revenue sources that may lead to sublicense fee payments will not be recognized until earned. As such, sublicense fees will be expensed in the same period as the revenue of the respective milestone or royalties are earned.
In May 2025, the Company entered into an exclusive option agreement (the "Option Agreement") with Senju. Under the agreement, the Company granted Senju an exclusive option to obtain a license to the development and commercialization rights of KIO-301 for the treatment of ophthalmic diseases in certain key countries in Asia, including Japan and China. The Company concluded that the Option Agreement contains two material performance obligations, the Option and the future License. The Option was deemed a material right per ASC 606 and therefore a separate performance obligation. However, the Company also determined that the Option performance obligation is not capable of being distinct because it is interrelated to the future License Agreement. There is no financing component in the Option Agreement.
The Option Agreement provides for a nonrefundable upfront payment of $1.25 million, which has been deferred and recorded the consideration as a contract liability within the deferred collaboration revenue on the condensed consolidated balance sheet. Revenue associated with the option fee will be recognized at the earlier of the exercise of the option or expiration of the option term.
Similarly, the associated contract costs specifically, sublicense fees, will be included in prepaid expenses and expensed when incurred, at the earlier of the exercise or expiration of the option.

Historical Timeline

Fiscal YearFiled
2025Mar 25, 2026Showing above
2024Mar 25, 2025

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.