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CYTOKINETICS INC

For the period ended Sep 30, 2026. Filed Nov 4, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 4, 2026

CYTK$55.14+2.7%Stored close · as of Nov 9, 2026

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Glossary of Terms

Unless the context requires otherwise, references to “Cytokinetics,” “the Company,” “we,” “us” or “our” in this Quarterly Report on Form 10-Q refer to Cytokinetics, Incorporated and its subsidiaries. References to “Notes” in this Form 10-Q are to the Notes to the Condensed Consolidated Financial Statements in this Form 10-Q. We also have used other specific terms in this Form 10-Q, most of which are explained or defined below:

Term/AbbreviationDefinition
2004 PlanCytokinetics’ Amended and Restated 2004 Equity Incentive Plan
2022 RPI TransactionsThe transactions contemplated by the RP Multi Tranche Loan Agreement and the RP Aficamten RPA
2024 RPI TransactionsThe transactions contemplated by the 2024 RP OM Loan Agreement, the RP Ulacamten RPA, the RP Stock Purchase Agreement, the 2022 RP Multi Tranche Loan Agreement Amendment and the RP Aficamten RPA Amendment
2026 IndentureIndenture, dated November 13, 2019, between Cytokinetics and U.S. Bank Trust Company (successor in interest to U.S. Bank National Association), as trustee, as supplemented by the First Supplemental Indenture, dated November 13, 2019, between Cytokinetics and U.S. Bank Trust Company (successor in interest to U.S. Bank National Association)
2026 NotesCytokinetics’ 4% convertible senior notes due 2026
2027 IndentureIndenture, dated July 6, 2022, between Cytokinetics and U.S. Bank Trust Company, as trustee
2027 NotesCytokinetics’ 3.50% convertible senior notes due 2027
2031 IndentureIndenture, dated September 19, 2025, between Cytokinetics and U.S. Bank Trust Company, as trustee
2031 NotesCytokinetics’ 1.75% convertible senior notes due 2031
ACACIA-HCMAssessment Comparing Aficamten to Placebo on Cardiac Endpoints In Adults with Non-Obstructive HCM
AMBER-HFpEFOur Phase 2 randomized, placebo-controlled, double-blind, multi-center, dose-finding clinical trial in patients with symptomatic HFpEF with left ventricular ejection fraction ≥ 60%
Astellas FSRA AgreementFast Skeletal Regulatory Activator Agreement, dated April 23, 2020 between Cytokinetics and Astellas
BayerMeans Bayer AG and/or any affiliate thereof, including Bayer Consumer Care AG
Bayer License AgreementMeans that certain License and Collaboration Agreement, dated November 18, 2024 by and between the Company and Bayer Consumer Care AG, pursuant to which Bayer acquired an exclusive license to develop and commercialize aficamten in Japan, subject to certain reserved development rights.
CEDAR-HCMOur clinical trial of aficamten in a pediatric population with oHCM
cGCPCurrent Good Clinical Practice
cGLPCurrent Good Laboratory Practice
cGMPCurrent Good Manufacturing Practice
ChinaPeople's Republic of China (including the Hong Kong and Macau SARs)
CMCChemistry, Manufacturing and Controls
CMOContract Manufacturing Organizations
COMET-HFOur Phase 3 multi-center, double-blind, randomized, placebo-controlled trial to assess the efficacy and safety of omecamtiv mecarbil in patients with symptomatic HFrEF with severely reduced ejection fraction
Common StockOur common stock, par value $0.001 per share
Compensation CommitteeCompensation and Talent Committee of Cytokinetics’ Board of Directors
Convertible Notes2026 Notes, 2027 Notes, and 2031 Notes
CorxelCorxel Pharmaceuticals Limited (formerly known as Ji Xing Pharmaceuticals Limited) and/or its affiliates, including Corxel Pharmaceuticals Hong Kong Limited
Corxel OM License AgreementMeans that certain Collaboration and License Agreement, dated December 20, 2021,
by and between the Company and Corxel, pursuant to which we granted Corxel an exclusive license to develop and commercialize omecamtiv mecarbil in China and Taiwan
COURAGE-ALSClinical Outcomes Using Reldesemtiv on ALSFRS-R in a Global Evaluation in ALS
CROContract Research Organization
CVCardiovascular
E.U. or EUEuropean Union
EMAEuropean Medicines Agency
ESPPEmployee Stock Purchase Plan
ETASUElements to assure safe use
Exchange ActSecurities Exchange Act of 1934, as amended
FDAU.S. Food and Drug Administration
Final Payment AmountAs defined in Part I, Item 2 (Management’s Discussion and Analysis of Financial Condition and Results of Operations) of this Quarterly Report on Form 10-Q – Sources and Uses of Cash, Royalty Pharma Transactions
FOREST-HCMFive-Year, Open-Label, Research Evaluation of Sustained Treatment with Aficamten in HCM
Fundamental ChangeAs defined in the 2026 Indenture, 2027 Indenture, or 2031 Indenture, as applicable
GAAPGenerally Accepted Accounting Principles in the U.S.
GALACTIC-HFGlobal Approach to Lowering Adverse Cardiac Outcomes Through Improving Contractility in Heart Failure
GDPRGeneral Data Protection Regulation ((EU) 2016/679)
HCMHypertrophic cardiomyopathy
HFpEFHeart failure with preserved ejection fraction
HFrEFHeart failure with reduced ejection fraction
HHSU.S. Department of Health and Human Services
HIPAAThe federal Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for Economic and Clinical Health Act
INDInvestigational New Drug
IRAInflation Reduction Act of 2022
KCCQKansas City Cardiomyopathy Questionnaire
KCCQ-OSSKCCQ Overall Summary Score
LVEFLeft ventricular ejection fraction
LVOTLeft ventricular outflow tract
LVOT-GLeft ventricular outflow tract gradient
MAAMarketing Authorization Application
MAPLE-HCMMetoprolol vs Aficamten in Patients with LVOT Obstruction on Exercise Endpoints Capacity in HCM
NDANew Drug Application
nHCMNon-obstructive HCM
NOLsNet operating loss carryforward
NYHANew York Heart Association
oHCMObstructive HCM
Oyster Point LeaseLease, dated July 24, 2019, by and between Cytokinetics and KR Oyster Point 1, LLC, as amended
Partial Redemption LimitationAs defined in the 2027 Indenture and 2031 Indenture, as applicable
PSUPerformance Stock Unit
REMSRisk Evaluation and Mitigation Strategy
RP Aficamten RPARevenue Participation Right Purchase Agreement, dated January 7, 2022, by and between Cytokinetics and Royalty Pharma Investments 2019 ICAV
RP Aficamten RPA AmendmentAmendment No. 1, dated May 22, 2024, to Revenue Participation Right Purchase Agreement, dated January 7, 2022, by and between Cytokinetics and Royalty Pharma Investments 2019 ICAV
RP Ulacamten RPAUlacamten Revenue Participation Right Purchase Agreement, dated May 22, 2024, by and between Cytokinetics and Royalty Pharma Investments 2019 ICAV
RP Multi Tranche Loan AgreementDevelopment Funding Loan Agreement, dated January 7, 2022, by and among Royalty Pharma Development Funding, LLC and Cytokinetics
RP Multi Tranche Loan Agreement AmendmentThird Amendment, dated May 22, 2024, to Development Funding Loan Agreement, dated January 7, 2022, by and among Royalty Pharma Development Funding, LLC and Cytokinetics
RP OM LiabilityAs defined in Part I, Item 1 (Financial Statements (Unaudited)), Notes to Condensed Consolidated Financial Statements of this Quarterly Report on Form 10-Q - Note 3 (Agreements with Royalty Pharma) – 2017 RP Omecamtiv Mecarbil Royalty Purchase Agreement
RP OM Loan Agreement2024 Development Funding Loan Agreement, dated May 22, 2024, by and among Royalty Pharma Development Funding, LLC and Cytokinetics
RP OM RPARoyalty Purchase Agreement, dated February 1, 2017, by and between Cytokinetics and RPI Finance Trust, as amended by Amendment No. 1, dated January 7, 2022
RP Stock Purchase AgreementCommon Stock Option and Purchase Agreement, dated May 22, 2024, by and between Cytokinetics and Royalty Pharma Investments 2019 ICAV
RPDFRoyalty Pharma Development Funding, LLC
RPFTRPI Finance Trust
RPI ICAVRoyalty Pharma Investments 2019 ICAV
RSURestricted Stock Unit
SanofiMeans Sanofi S.A. and/or any affiliates thereof, including Genzyme Corporation
Sanofi License AgreementMeans that certain License and Collaboration Agreement, dated July 14, 2020 by and between the Company and Sanofi (as assignee of Corxel), pursuant to which Sanofi has an exclusive license to develop and commercialize aficamten in China and Taiwan
Section 382Section 382 of the Internal Revenue Code
Securities ActSecurities Act of 1933, as amended
SEQUOIA-HCMSafety, Efficacy, and Quantitative Understanding of Obstruction Impact of Aficamten in HCM
SGLT2Sodium-glucose cotransporter-2
U.S. or USUnited States of America

This Form 10-Q includes discussion of certain clinical studies relating to various in-line products and/or product candidates. These studies typically are part of a larger body of clinical data relating to such products or product candidates, and the discussion herein should be considered in the context of the larger body of data. In addition, clinical trial data are subject to differing interpretations, and, even when we view data as sufficient to support the safety and/or effectiveness of a product candidate or a new indication for an in-line product, regulatory authorities may not share our views and may require additional data or may deny approval altogether.

CYTOKINETICS and our C-shaped logo are registered trademarks of Cytokinetics in the U.S. and certain other countries. Other service marks, trademarks and trade names referred to in this report are the property of their respective owners.

The information contained on our website, our Facebook, Instagram, YouTube and LinkedIn pages or our X (formerly Twitter) accounts, or any third-party website, is not incorporated by reference into this Form 10-Q.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.