Commitments and Contingencies	6 Months Ended
Jun. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	5. Commitments and Contingencies Leases Palo Alto, California Leases In June 2020, the Company entered into lease agreements for two buildings at 1200 and 1250 Page Mill Road in Palo Alto, California, which are now the Company’s U.S. corporate offices. Under ASC 842, the Company classified these leases as operating leases and recorded right-of-use assets and lease liabilities on the lease commencement date. In March 2025, the Company entered into an agreement to sublease its building at 1200 Page Mill Road. The term of the sublease is from March 2025 to February 2027, with no option to extend the lease. Sublease income is recorded as a reduction to rent expense and included within general and administrative expense. Future minimum lease payments to be received under the sublease are $5.0 million, $5.7 million and $0.5 million for the years ended December 31, 2025, 2026 and 2027, respectively. The remaining lease cost to be recognized by the Company exceeded the anticipated sublease income and, as a result, the Company recognized a non-cash lease impairment expense of $1.9 million during the first quarter of 2025. Refer to Note 2 for additional disclosure. During the three and six months ended June 30, 2025, the Company recognized $1.9 million and $2.4 million of sublease income, of which $0.4 million and $0.6 million was variable sublease income. Sublease income is recorded as a reduction to rent expense. Switzerland Lease In April 2020, the Company entered into a lease agreement for office and laboratory space at Rottenstrasse 5 in Visp, Switzerland. Under ASC 842, the Company classified this lease as an operating lease and recorded a right-of-use asset and lease liability on the lease commencement date. Ursus Facility In August 2020, the Company and its wholly owned subsidiary Kodiak Sciences GmbH entered into a manufacturing agreement with Lonza Ltd (“Lonza”) for the clinical and commercial supply of the Company’s antibody biopolymer conjugate drug substance which included a custom-built manufacturing facility. In April 2021, the agreement was amended to provide for greater manufacturing flexibility, to define a comprehensive mandate as an antibody biopolymer conjugates manufacturing facility to be used for the Company’s antibody biopolymer conjugates pipeline, at clinical as well as commercial scales, across a broad capacity range under the tight quality controls required for ophthalmology and retinal medicines, and to allow for future process and equipment changes as needed. The Company concluded that this agreement contained an embedded lease as the custom-built manufacturing suite would be dedicated for the Company’s use. Under ASC 842, the Company classified the lease portion as an operating lease and recorded a right-of-use asset and lease liability on the lease commencement date. Manufacturing Agreements The Company has entered into service and equipment purchase agreements in the normal course of business with various providers, pursuant to which such providers agreed to perform activities in connection with the manufacturing process of certain materials. These agreements, and any related amendments, state that planned activities and purchases that are included in the signed work orders are, in some cases, binding and, hence, obligate the Company to pay the full price of the work order upon satisfactory delivery of products and services or obligate the Company to the binding amount regardless of whether such planned activities are in fact performed. Per the terms of the agreements, the Company has the option to cancel signed orders at any time upon written notice, which may or may not be subject to payment of a cancellation fee. The level of cancellation fees may be dependent on the timing of the written notice in relation to the commencement date of the work, with the maximum cancellation amount dependent on the agreement or the work order. Other Funding Commitments In the normal course of business, the Company enters into agreements with third-parties for services to be provided to the Company. Generally, these agreements provide for termination upon notice, with specified amounts due upon termination based on the timing of termination and the terms of the agreement. The actual amounts and timing of payments under these agreements are uncertain and contingent upon the initiation and completion of services to be provided to the Company. The Company has also entered into various cancellable license agreements for certain technology. The Company may be obligated to make payments on future sales of specified products associated with such license agreements. Such payments are dependent on future product sales and are not estimable. Legal Proceedings From time to time, the Company may be subject to various legal proceedings and claims that arise in the ordinary course of its business activities. Management is currently not aware of any matters that could have a material adverse effect on its financial position, results of operations or cash flows. The Company records a legal liability when it believes that it is both probable that a liability may be imputed, and the amount of the liability can be reasonably estimated. Significant judgment by the Company is required to determine both probability and the estimated amount. Indemnification To the extent permitted under Delaware law, the Company has agreed to indemnify its directors and officers for certain events or occurrences while the director or officer is, or was serving, at the Company’s request in such capacity. The indemnification period covers all pertinent events and occurrences during the director’s or officer’s service. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is not specified in the agreements; however, the Company has director and officer insurance coverage that reduces its exposure and enables the Company to recover a portion of any future amounts paid. The Company believes the estimated fair value of these indemnification agreements in excess of applicable insurance coverage is minimal.

Commitments and Contingencies

6 Months Ended

Jun. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

5. Commitments and Contingencies

Leases

Palo Alto, California Leases

In June 2020, the Company entered into lease agreements for two buildings at 1200 and 1250 Page Mill Road in Palo Alto, California, which are now the Company’s U.S. corporate offices. Under ASC 842, the Company classified these leases as operating leases and recorded right-of-use assets and lease liabilities on the lease commencement date.

In March 2025, the Company entered into an agreement to sublease its building at 1200 Page Mill Road. The term of the sublease is from March 2025 to February 2027, with no option to extend the lease. Sublease income is recorded as a reduction to rent expense and included within general and administrative expense. Future minimum lease payments to be received under the sublease are $5.0 million, $5.7 million and $0.5 million for the years ended December 31, 2025, 2026 and 2027, respectively. The remaining lease cost to be recognized by the Company exceeded the anticipated sublease income and, as a result, the Company recognized a non-cash lease impairment expense of $1.9 million during the first quarter of 2025. Refer to Note 2 for additional disclosure.

During the three and six months ended June 30, 2025, the Company recognized $1.9 million and $2.4 million of sublease income, of which $0.4 million and $0.6 million was variable sublease income. Sublease income is recorded as a reduction to rent expense.

Switzerland Lease

In April 2020, the Company entered into a lease agreement for office and laboratory space at Rottenstrasse 5 in Visp, Switzerland. Under ASC 842, the Company classified this lease as an operating lease and recorded a right-of-use asset and lease liability on the lease commencement date.

Ursus Facility

In August 2020, the Company and its wholly owned subsidiary Kodiak Sciences GmbH entered into a manufacturing agreement with Lonza Ltd (“Lonza”) for the clinical and commercial supply of the Company’s antibody biopolymer conjugate drug substance which included a custom-built manufacturing facility. In April 2021, the agreement was amended to provide for greater manufacturing flexibility, to define a comprehensive mandate as an antibody biopolymer conjugates manufacturing facility to be used for the Company’s antibody biopolymer conjugates pipeline, at clinical as well as commercial scales, across a broad capacity range under the tight quality controls required for ophthalmology and retinal medicines, and to allow for future process and equipment changes as needed. The Company concluded that this agreement contained an embedded lease as the custom-built manufacturing suite would be dedicated for the Company’s use. Under ASC 842, the Company classified the lease portion as an operating lease and recorded a right-of-use asset and lease liability on the lease commencement date.

Manufacturing Agreements

The Company has entered into service and equipment purchase agreements in the normal course of business with various providers, pursuant to which such providers agreed to perform activities in connection with the manufacturing process of certain materials. These agreements, and any related amendments, state that planned activities and purchases that are included in the signed work orders are, in some cases, binding and, hence, obligate the Company to pay the full price of the work order upon satisfactory delivery of products and services or obligate the Company to the binding amount regardless of whether such planned activities are in fact performed. Per the terms of the agreements, the Company has the option to cancel signed orders at any time upon written notice, which may or may not be subject to payment of a cancellation fee. The level of cancellation fees may be dependent on the timing of the written notice in relation to the commencement date of the work, with the maximum cancellation amount dependent on the agreement or the work order.

Other Funding Commitments

In the normal course of business, the Company enters into agreements with third-parties for services to be provided to the Company. Generally, these agreements provide for termination upon notice, with specified amounts due upon termination based on the timing of termination and the terms of the agreement. The actual amounts and timing of payments under these agreements are uncertain and contingent upon the initiation and completion of services to be provided to the Company.

The Company has also entered into various cancellable license agreements for certain technology. The Company may be obligated to make payments on future sales of specified products associated with such license agreements. Such payments are dependent on future product sales and are not estimable.

Legal Proceedings

From time to time, the Company may be subject to various legal proceedings and claims that arise in the ordinary course of its business activities. Management is currently not aware of any matters that could have a material adverse effect on its financial position, results of operations or cash flows. The Company records a legal liability when it believes that it is both probable that a liability may be imputed, and the amount of the liability can be reasonably estimated. Significant judgment by the Company is required to determine both probability and the estimated amount.

Indemnification

To the extent permitted under Delaware law, the Company has agreed to indemnify its directors and officers for certain events or occurrences while the director or officer is, or was serving, at the Company’s request in such capacity. The indemnification period covers all pertinent events and occurrences during the director’s or officer’s service. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is not specified in the agreements; however, the Company has director and officer insurance coverage that reduces its exposure and enables the Company to recover a portion of any future amounts paid. The Company believes the estimated fair value of these indemnification agreements in excess of applicable insurance coverage is minimal.