Transaction · 0001061983-26-000097

Blum Robert I

Blum Robert I, PRES, CEO, reported an open-market or private sale at CYTOKINETICS INC involving 7500.000000 shares for an estimated $490950.00. Reported holdings after the transaction were 278544.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SPRES, CEO
CYTKCYTOKINETICS INC
Filing timeSep 28
Trade dateSep 28, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded2.62%Shares sold ÷ (holdings after + shares sold). Estimated position before: 286,044 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$66.16
Pre-filing
1mo ago +9.0%1w ago +2.1%1d ago -2.3%
Returns since
7d30d90d180d1y

CYTK price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
CYTK since 2026-09-28Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001061983-26-000097
Common Stock
Transaction date
Sep 28, 2026
Filed Sep 28, 2026, 08:54 PM · 0d delay
Shares
7.50k sh
$65.46 per share
Estimated value
-$490k
Computed from shares × price
Holdings after
278k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership
+10score
Filing-only score

+10

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

President & CEO

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Shares held by The Bridget Blum 2003 Irrevocable Trust, of which reporting person is a co-trustee. Reporting person disclaims any beneficial ownership interest in the Shares.

  2. F2

    Shares held by The Brittany Blum 2003 Irrevocable Trust, of which reporting person is a co-trustee. Reporting person disclaims any beneficial ownership interest in the Shares.

Original filing · 0001061983-26-000097
Related transactions

0 other filings

Same reporting owner
Recent company activity

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CYTK