CYTOKINETICS INC
CYTK evidence brief
What we can confirm
What it means
What to watch
Prepared research question
What matters most for CYTK—catalysts, financial risk and supporting evidence?
Traceable citations · Unknowns marked
BioSniper AI · CYTK
Cytokinetics is a late-stage biopharmaceutical company focused on discovering, developing, and commercializing first-in-class muscle activators and next-in-class muscle inhibitors for cardiovascular and neuromuscular diseases, with one approved product (MYQORZO) and a deep pipeline led by aficamten.
Key risk: Profitability uncertainty
BioSniper Score
Based on 6 of 6 signals
Market Cap
$10.02B
Cash Runway
21.3 moLead Asset
Aficamten (Phase 3)Next Catalyst
Phase3_Topline · Oct 1, 2026Financial data as of Jun 30, 2026.
Tracking 5 pipeline candidates · 16 clinical trials · 5 catalysts · 1 FDA decision for CYTOKINETICS INC.
Cytokinetics is a late-stage biopharmaceutical company focused on discovering, developing, and commercializing first-in-class muscle activators and next-in-class muscle inhibitors for cardiovascular and neuromuscular diseases, with one approved product (MYQORZO) and a deep pipeline led by aficamten.
- Cytokinetics is a late-stage biopharmaceutical company focused on muscle-directed investigational medicines for cardiovascular and neuromuscular diseases [sec_mda · as of 2025-05-06].
- The company has one approved product, MYQORZO, with commercial sales commencing in the first quarter of 2026 [sec_mda · as of 2026-08-06].
- Cash, cash equivalents, and investments were $1.1 billion as of March 31, 2026 [sec_mda · as of 2026-05-05].
- Net cash used in operations was $145.5 million for the three months ended March 31, 2026 [sec_mda · as of 2026-05-05].
- Accumulated deficit was approximately $3.5 billion since inception as of February 2026 [sec_mda · as of 2026-02-26].
What works
- Cytokinetics has a late-stage pipeline with multiple Phase 3 trials for aficamten, targeting a large market in hypertrophic cardiomyopathy [sec_mda · as of 2025-05-06].
- The company has a substantial cash position of $1.1 billion as of March 31, 2026, providing runway for ongoing trials and commercial launch [sec_mda · as of 2026-05-05].
- MYQORZO, the first approved product, began commercial sales in Q1 2026, generating initial revenue and validating the company's commercial capabilities [sec_mda · as of 2026-08-06].
What to weigh
- Cytokinetics has incurred an accumulated deficit of approximately $3.5 billion since inception and there is no assurance of attaining profitability [sec_mda · as of 2026-02-26].
- The company reported a net loss of $198.8 million for the six months ended June 30, 2025, and expects continued operating losses and net cash outflows [sec_mda · as of 2025-08-07].
- Liquidity is dependent on revenues from MYQORZO and additional capital, which may not be available on acceptable terms [sec_mda · as of 2026-08-06].
- The company faces risks common to biopharmaceutical companies, including dependence on key personnel and successful development of drug candidates [sec_mda · as of 2026-08-06].
From the filings
Quoted directly from source documents.
Cytokinetics is a late-stage biopharmaceutical company focused on muscle-directed medicines.
“We are a late-stage biopharmaceutical company focused on discovering, developing and commercializing first-in-class muscle activators and next-in-class muscle inhibitors as potential treatments for debilitating diseases in which muscle performance is compromised and/or declining.”
SEC MD&A · May 6, 2025
Cash position as of March 31, 2026 was $1.1 billion.
“Cash, cash equivalents, and investments was $ 1.1 billion as of March 31, 2026.”
SEC MD&A · May 5, 2026
Accumulated deficit was approximately $3.5 billion.
“We have incurred an accumulated deficit of approximately $3.5 billion since inception and there can be no assurance that we will attain profitability.”
SEC MD&A · February 26, 2026
MYQORZO commercial sales began in Q1 2026.
“We commenced commercial sales in the first quarter of 2026, but there can be no assurance as to the timing or level of revenues from such sales.”
SEC MD&A · August 6, 2026
Catalyst timeline
- 2026-10-01 · Phase3_Topline — Phase 3 Topline: A Phase 3, Multi-Center, Randomized, Double-Blind Trial to Evaluate the Efficacy and Safety of Afica — Topline results from a pivotal Phase 3 trial of aficamten; outcome will significantly impact the drug's regulatory and commercial prospects.
- 2027-12-01 · Phase3_Topline — Phase 3 Topline: A Multi-Center, Double-Blind, Randomized, Placebo-Controlled Trial to Assess Efficacy and Safety of — Another Phase 3 topline readout for aficamten in a different indication, expanding potential label.
- 2028-03-01 · Phase3_Topline · aficamten — Phase 3 Topline: A Follow-Up, Open-Label, Research Evaluation of Sustained Treatment With Aficamten (CK-3773274) in H — Open-label extension data providing long-term safety and efficacy information for aficamten.
- 2028-09-29 · Phase3_Topline — Phase 3 Topline: A Phase 3, Randomized, Open-label, Multicenter Trial to Evaluate the Efficacy, Safety, and Tolerabil — Additional Phase 3 topline data for aficamten, further characterizing the drug's profile.
- 2030-01-01 · Phase3_Topline — Phase 3 Topline: A Phase 2/3 Multicenter, Randomized, Double-Blind, Placebo-Controlled and Open-Label Extension Trial — Long-term Phase 2/3 data for aficamten, including placebo-controlled and open-label extension phases.
Risks & what to watch (4)›
Key risks
- Profitability uncertainty — Accumulated deficit of ~$3.5B; no assurance of attaining profitability [sec_mda · as of 2026-02-26]
- Liquidity dependence on MYQORZO — Future liquidity relies on MYQORZO revenues and additional capital, which may not be available [sec_mda · as of 2026-08-06]
- Clinical and regulatory risks — Development of drug candidates like aficamten faces typical biopharma risks [sec_mda · as of 2026-08-06]
- Dependence on key personnel — Company's success depends on retaining key scientific and management personnel [sec_mda · as of 2026-08-06]
What to watch
- Phase 3 topline data for aficamten expected in October 2026, which will be a key catalyst for the pipeline [upcoming catalysts].
- Commercial ramp of MYQORZO and its contribution to revenue, as sales began in Q1 2026 [sec_mda · as of 2026-08-06].
- Cash burn rate and any additional financing activities, given net cash used in operations of $145.5M in Q1 2026 [sec_mda · as of 2026-05-05].
Sources: SEC filings · SEC MD&A · Generated August 29, 2026 · How we verify sources →
Run CYTOKINETICS INC through your own thesis
Use the pipeline, catalyst, financial, FDA, and market facts on this page as inputs to a protocol you control.
Your protocol can:
- Turn available CYTOKINETICS INC facts into screen rules or deeper checks
- Show cited findings, blockers, and unresolved evidence together
- Save the logic and rerun it as the company evidence changes
Evidence & data
Score breakdownBased on 6 of 6 signals · derived from public data
21.3 months
OCF -$160M · Net income -$199M
Lead: Approved
5 candidates
5 upcoming, next in ~32d
0 buys · 51 sells (180d)
Runway
Catalysts
Pipeline
Regulatory
Financials
Institutional Holdings
Source: SEC Form 13F · as of Mar 2026Institutional holders
446
Total value held
$9.22B
| Holder | Shares | Value |
|---|---|---|
| blackrock, inc. | 16,548,011 | $1.09B |
| vanguard capital management llc | 10,977,268 | $723.5M |
| fmr llc | 10,723,140 | $706.8M |
| wellington management group llp | 8,009,489 | $527.9M |
| vanguard portfolio management llc | 5,843,782 | $385.2M |
| state street corp | 5,745,193 | $378.7M |
| geode capital management, llc | 3,215,415 | $212.0M |
| bank of america corp /de/ | 3,125,436 | $206.0M |
| rtw investments, lp | 2,721,158 | $179.4M |
| armistice capital, llc | 2,664,538 | $175.6M |
Showing top 10 of 446 institutional holders of CYTOKINETICS INC. Open the full 13F history after sign-in.
Short Interest
as of May 20, 2026- % of float
- 20.8%
- Days to cover
- 9.3
- Shares short
- 15,896,196
- Daily short volume
- -
Short percent of float and days-to-cover reflect reported short positioning. Daily short volume is the exchange-reported short share of a single day's trading volume and is noisier. See the most-shorted biotech ranking →
CYTK short interestGovernance
Frequently asked questions
What is the AI investment thesis for CYTOKINETICS INC?
Cytokinetics is a late-stage biopharmaceutical company focused on discovering, developing, and commercializing first-in-class muscle activators and next-in-class muscle inhibitors for cardiovascular and neuromuscular diseases, with one approved product (MYQORZO) and a deep pipeline led by aficamten.
What is CYTOKINETICS INC's lead drug candidate?
CYTOKINETICS INC's most advanced tracked candidate is Aficamten (Phase 3) for Symptomatic Hypertrophic Cardiomyopathy (HCM); Pediatric; Symptomatic Non-Obstructive Hypertrophic Cardiomyopathy.
What is CYTOKINETICS INC's next catalyst?
CYTOKINETICS INC's next tracked catalyst is a Phase3_Topline event — "Phase 3 Topline: A Phase 3, Multi-Center, Randomized, Double-Blind Trial to Evaluate the Efficacy and Safety of Afica" — expected October 1, 2026.
Who is the CEO of CYTOKINETICS INC?
Mr. Robert I. Blum is the chief executive officer of CYTOKINETICS INC (CYTK).
Where is CYTOKINETICS INC headquartered?
CYTOKINETICS INC (CYTK) is headquartered in South San Francisco, CA, United States.
The AI overview and BioSniper Score are neutral, data-derived signals built from public SEC filings, ClinicalTrials.gov and FDA records — not investment advice.