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Nkarta, Inc.

For the period ended Dec 31, 2025. Filed Mar 25, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 25, 2026

NKTX$1.35-15.1%Stored close · as of Nov 10, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits

Item 15. Exhibits and Financial Statement Schedules

(a) The following documents are filed as part of this Annual Report on Form 10-K:

Financial Statements. See Index to Financial Statements in Part II Item 8 of this Annual Report on Form 10-K.

Financial Statement Schedules. None. All financial statement schedules are omitted because they are not applicable, not required under the instructions or the requested information is included in the financial statements or notes thereto.

Exhibits. The following is a list of exhibits filed with this report or incorporated herein by reference:

Exhibit Index

Incorporated by Reference
ExhibitNumberDescriptionFormFile No.ExhibitFiling DateFiledHerewith
3.1(A)Restated Certificate of Incorporation of Nkarta, Inc.8-K001-393703.17/14/2020
3.1(B)Amendment to Restated Certificate of Incorporation of Nkarta, Inc.8-K001-393703.16/9/2023
3.1(C)Second Amendment to Restated Certificate of Incorporation of Nkarta, Inc.8-K001-393703.16/13/2024
3.2Amended and Restated Bylaws of Nkarta, Inc.8-K001-393703.27/14/2020
4.1(A)Form of Common Stock Certificate.S-1/A333-2393014.17/2/2020
4.1(B)Form of Pre-Funded Warrant.8-K001-393704.13/28/2024
4.2Amended and Restated Investors’ Rights Agreement, dated as of August 27, 2019, by and among Nkarta, Inc. and certain of its stockholders.S-1333-2393014.26/19/2020
4.3Description of Capital Stock.X
10.1#Form of Indemnification Agreement between Nkarta, Inc. and each of its directors and executive officers.S-1/A333-23930110.17/2/2020
10.2(A)#2015 Equity Incentive Plan.S-1333-23930110.26/19/2020
10.2(B)#Form of Stock Option Agreement for 2015 Equity Incentive Plan.S-1333-23930110.36/19/2020
10.3(A)#2020 Performance Incentive Plan.S-1/A333-23930110.47/2/2020
10.3(B)#Form of Director Option Agreement between Nkarta, Inc. and certain of its directors.10-Q001-3937010.58/20/2020
10.3(C)#Form of Director Option Agreement between Nkarta, Inc. and certain of its directors.10-K001-3937010.3(C)3/16/2023
10.3(D)#Form of non-qualified Stock Option Agreement between Nkarta, Inc. and certain of its officers and employees.10-Q001-3937010.68/20/2020
10.3(E)#Form of non-qualified Stock Option Agreement between Nkarta, Inc. and certain of its officers and employees.10-K001-3937010.3(E)3/16/2023
10.3(F)#Form of Restricted Stock Unit Agreement between Nkarta, Inc. and certain of its officers and employees.10-K001-3937010.3(F)3/16/2023
10.4#2020 Employee Stock Purchase Plan.S-1/A333-23930110.57/2/2020
10.5#Nkarta, Inc. Non-Employee Director Compensation Policy, as amended on March 22, 2023.10-Q001-3937010.25/11/2023
10.6(A)#Employment Offer Letter between Nkarta, Inc. and Paul Hastings.S-1333-23930110.66/19/2020
10.6(C)#Employment Offer Letter between Nkarta, Inc. and Nadir Mahmood.10-Q001-3937010.111/07/2024
10.6(D)#Employment Offer Letter between Nkarta, Inc. and Shawn Rose.10-Q001-3937010.18/12/2025
10.8#Form of Severance Agreement.8-K001-3937010.11/13/2021
10.9Exclusive License Agreement between Nkarta, Inc., National University of Singapore and St. Jude Research Hospital, Inc.S-1333-23930110.96/19/2020
10.10(A)Lease Agreement, dated May 29, 2018, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.S-1333-23930110.106/19/2020
10.10(B)First Amendment to Lease Agreement, dated April 24, 2019, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.S-1333-23930110.116/19/2020
10.10(C)Second Amendment to Lease Agreement, dated May 5, 2020, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.S-1333-23930110.126/19/2020
10.10(D)Third Amendment to Lease Agreement, dated January 14, 2021, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.10-K001-3937010.10(D)3/25/2021
10.10(E)Fourth Amendment to Lease Agreement, dated October 19, 2021, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.8-K001-3937010.110/22/2021
10.10(F)Fifth Amendment to Lease Agreement, dated August 11, 2022, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.10-Q001-3937010.28/11/2022
10.10(G)Sixth Amendment to Lease Agreement, dated December 20, 2024, by and between Nkarta, Inc. and HCP Life Science REIT, Inc.10-K001-3937010.10(G)3/26/2025
10.11(A)Lease, dated July 9, 2021, by and between Nkarta, Inc. and HCP BTC, LLC.8-K001-3937010.17/14/2021
10.11(B)First Amendment to Lease, dated November 5, 2021, by and between Nkarta, Inc. and HCP BTC, LLC.10-Q001-3937010.211/10/2021
10.11(C)Second Amendment to Lease, dated August 11, 2022, by and between Nkarta, Inc. and HCP BTC, LLC.10-Q001-3937010.18/11/2022
10.11(D)Third Amendment to Lease, dated April 25, 2023, by and between Nkarta, Inc. and HCP BTC, LLC.10-Q001-3937010.35/11/2023
10.11(E)Fourth Amendment to Lease, dated June 14, 2023, by and between Nkarta, Inc. and HCP BTC, LLC.10-Q001-3937010.2(B)8/10/2023
19.1Nkarta, Inc. Insider Trading Policy.X
23.1Consent of Independent Registered Public Accounting Firm.X
31.1Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
31.2 · Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. · X
32+ · Certification of Principal Executive Officer and Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. · X
97.1Policy Regarding the Recoupment of Certain Compensation Payments.10-K001-39370973/21/2024
101.INSInline XBRL Instance Document – the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL documentX
101.SCHInline XBRL Taxonomy Extension Schema With Embedded Linkbase DocumentsX
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)X
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