Blum Robert I
President & CEO
Blum Robert I has filed 26 SEC Form 4 filings (43 transaction rows) across 1 company, with disclosures dating back to 2025. 22 of those filings fall inside the rolling window. Most recent filing: Oct 13, 2026.
On the most recent filing, Blum Robert I is listed as President & CEO at CYTOKINETICS INC. Inside the rolling window, Blum Robert I reported no open-market purchases and 18 open-market sales totaling $17.5M in CYTK. The largest disclosed transaction in the window is a sale of 97,926 CYTK shares on Sep 15, 2026, worth $6.8M.
Companies traded
Other insiders at CYTK
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$17.5M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CYTK | President & CEO | Sale | 7,500 | $472K | Oct 13 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $491K | Sep 28 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $551K | Sep 15 | SEC ↗ | |
| CYTK | President & CEO | Sale | 97,926 | $6.8M | Sep 15 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $527K | Aug 31 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $576K | Aug 10 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $607K | Jul 27 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $615K | Jul 14 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $637K | Jul 2 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $528K | Jun 15 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $579K | May 28 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $584K | May 14 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $447K | Apr 29 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $490K | Apr 15 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,500 | $500K | Apr 1 | SEC ↗ | |
| CYTK | President & CEO | Sale | 36,601 | $2.3M | Mar 18 | SEC ↗ | |
| CYTK | President & CEO | Sale | 7,931 | $482K | Mar 10 | SEC ↗ | |
| CYTK | President & CEO | Sale | 5,000 | $314K | Oct 30 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 16, 2025 | CYTK | Sale | $300K |
| Oct 1, 2025 | CYTK | Sale | $275K |
| Sep 15, 2025 | CYTK | Sale | $249K |
| Sep 2, 2025 | CYTK | Sale | $244K |
Frequently asked questions
How many SEC Form 4 filings has Blum Robert I made?
Blum Robert I has filed 26 SEC Form 4 filings (43 transaction rows) across 1 company since 2025.
Which companies does Blum Robert I trade?
Blum Robert I has filed SEC Form 4 disclosures for 1 company, including CYTK.
When was Blum Robert I's most recent SEC Form 4 filing?
Blum Robert I's most recent SEC Form 4 filing on Tracefour is dated Oct 13, 2026.
What is Blum Robert I's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Blum Robert I is listed as President & CEO.
What is Blum Robert I's total buy and sell value in the current window?
Inside the rolling retention window, Blum Robert I bought $0 and sold $17.5M based on SEC Form 4 filings.
What was Blum Robert I's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 97,926 CYTK shares on 2026-09-15, worth $6.8M, per SEC Form 4 filings.