CYTK

CYTOKINETICS INC

NasdaqHealthcarePharmaceutical Preparations

Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Latest filingSep 01, 2026Most recent Form 4
Total buying$00 buys
Total selling$132M3 sells
Net open-market-$132M3 insiders
Open-market mix
Buy vs sell distribution by transaction count
3 transactions
0 buys0%·100%3 sells

Insider activity report

Monthly open-market purchase and sale counts
Buys Sells
530-3-5transactionsAug 2026 sells: 2 transactions · $96.7M2AugSep 2026 sells: 1 transactions · $35.7M1Sep

Transaction codes

By Form 4 transaction code in selected period
7transactions
  • M · Option exercise · dominant4 · 57%
  • S · Open-market sells3 · 43%

Activity by reported role

A joint filing can contribute to multiple roles
10transactions
  • CCO · dominant3 · 30%
  • ER3 · 30%
  • EVP3 · 30%
  • Director1 · 10%

Distinct insiders active

Reporting-owner CIKs by month · peak Aug 2026 (2)
Aug 2026Sep 2026
3distinct insiders in 2 months

Reported Holdings After

Separated by insider, security, and ownership type
Malik Fady IbrahamCommon Stock · Direct
157.4k153.9kAug 18, 2026 · 157,402 shares owned afterAug 18, 2026 · 153,902 shares owned afterAug 18, 2026Aug 18, 2026
153,902Aug 18, 2026
Callos AndrewCommon Stock · Direct
68.6k58.6kAug 31, 2026 · 58,555 shares owned afterAug 31, 2026 · 68,555 shares owned afterAug 31, 2026Aug 31, 2026
68,555Aug 31, 2026
Malik Fady IbrahamNon-Qualified Stock Option (Right to Buy) · Direct
30.4k30.4kAug 18, 2026 · 30,386 shares owned afterAug 18, 2026Aug 18, 2026
30,386Aug 18, 2026
Callos AndrewNon-Qualified Stock Option (Right to Buy) · Direct
00Aug 31, 2026 · 0 shares owned afterAug 31, 2026Aug 31, 2026
0Aug 31, 2026
Parshall B LynneCommon Stock · Direct
10.8k10.8kSep 01, 2026 · 10,784 shares owned afterSep 01, 2026Sep 01, 2026
10,784Sep 01, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells red
0 active days
Aug 04Sep 04
LessMore

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale$70.2M
10b5-1 detected0
Amended rows0

Filing-only signals

Deterministic matches in the selected period

CYTK transaction history

Filters apply within this company and selected period by default
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TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date

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CYTOKINETICS INC Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at CYTOKINETICS INC?

PARSHALL B LYNNE, Callos Andrew, Malik Fady Ibraham.

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

Parshall B Lynne reported a sale on Sep 01, 2026 valued at $35.7M. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $1,325,170.00. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.