CYTK
CYTOKINETICS INC · Healthcare · Market cap $8.7B
Insiders sold $13.8M net in the last 90 days ·5 sellers, 0 buyers· 2 of 18 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 20, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$52.1M
reported sales (SEC code S)
Unique Insiders
10
in the rolling window
Latest filing
Oct 20, 2026
Malik Fady Ibraham
CYTOKINETICS INC (CYTK) has 127 SEC Form 4 filings (214 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Oct 20, 2026.
Inside the rolling window, 10 insiders at CYTOKINETICS INC reported no open-market purchases and 79 open-market sales totaling $52.1M. The most active filer is EVP, Chief Commercial Officer Callos Andrew with 22 filings. Insiders have net sold $31.6M over the trailing 6 months. The most recent open-market filing is a sale of 3,500 shares by EVP Research & Development Malik Fady Ibraham, dated Oct 20, 2026, worth $224K.
- Industry:Biotechnology
- CEO:Robert I. Blum
- Employees:673
- HQ:South San Francisco, CA, US
- IPO:2004-04-26
| Source | |||||||
|---|---|---|---|---|---|---|---|
| EVP Research & Development | Sale | 3,500 | $224K | Oct 20 | -2.5% | SEC ↗ | |
| President & CEO | Sale | 7,500 | $472K | Oct 13 | +1.2% | SEC ↗ | |
| EVP Research & Development | Sale | 3,500 | $215K | Oct 6 | +1.6% | SEC ↗ | |
| President & CEO | Sale | 7,500 | $491K | Sep 28 | -5.8% | SEC ↗ | |
| EVP Research & Development | Sale | 3,500 | $239K | Sep 22 | -7.8% | SEC ↗ | |
| Director | Sale | 1,000 | $72K | Sep 15 | -10.1% | SEC ↗ | |
| President & CEO | Sale | 7,500 | $551K | Sep 15 | -10.1% | SEC ↗ | |
| President & CEO | Sale | 97,926 | $6.8M | Sep 15 | -10.1% | SEC ↗ | |
Landry Robert EFirst filing | Director | Sale | 1,000 | $75K | Sep 11 | -15.5% | SEC ↗ |
| EVP Research & Development | Sale | 3,500 | $264K | Sep 8 | -17.3% | SEC ↗ | |
PARSHALL B LYNNEFirst in 3 months | Director | Sale | 5,000 | $357K | Sep 1 | — | SEC ↗ |
| EVP, Chief Commercial Officer | Sale | 10,000 | $702K | Aug 31 | — | SEC ↗ | |
| President & CEO | Sale | 7,500 | $527K | Aug 31 | — | SEC ↗ | |
| EVP Research & Development | Sale | 3,500 | $265K | Aug 18 | — | SEC ↗ | |
| President & CEO | Sale | 7,500 | $576K | Aug 10 | — | SEC ↗ | |
| EVP, Chief Commercial Officer | Sale | 14,000 | $1.1M | Jul 30 | — | SEC ↗ | |
| President & CEO | Sale | 7,500 | $607K | Jul 27 | — | SEC ↗ | |
| EVP Research & Development | Sale | 3,500 | $282K | Jul 23 | — | SEC ↗ | |
| President & CEO | Sale | 7,500 | $615K | Jul 14 | — | SEC ↗ | |
| EVP Research & Development | Sale | 3,500 | $303K | Jul 7 | — | SEC ↗ | |
| EVP, Chief Commercial Officer | Sale | 15,000 | $1.3M | Jul 2 | — | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 1,112 | $98K | Jul 2 | — | SEC ↗ | |
| President & CEO | Sale | 7,500 | $637K | Jul 2 | — | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 38,730 | $3.2M | Jun 29 | — | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 3,134 | $266K | Jun 29 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading CYTK 6 all-time
- DRep. Gilbert CisnerosPurchase$1,001 - $15,0002026-06-30
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002026-06-30
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002025-10-09
- RRep. Lisa C. McClainOther$1,001 - $15,0002025-06-17
- RRep. Lisa C. McClainOther$1,001 - $15,0002025-06-17
- RRep. Lisa C. McClainPurchase$1,001 - $15,0002025-06-11
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does CYTK have?
CYTOKINETICS INC (CYTK) has 127 SEC Form 4 filings (214 transaction rows) in the rolling 365-day window, disclosed by 10 distinct insiders. Most recent filing: Oct 20, 2026.
When was the most recent SEC Form 4 filing for CYTK?
The most recent Form 4 filing for CYTK on Tracefour is dated Oct 20, 2026.
Who is the most active insider at CYTK?
The most active SEC Form 4 filer at CYTK in the rolling window is EVP, Chief Commercial Officer Callos Andrew, with 22 filings.
What is the net insider flow at CYTK over the last 6 months?
Over the trailing 180 days, insiders at CYTK have net sold $31.6M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at CYTK in the current window?
Inside the rolling window, insiders at CYTK bought $0 and sold $52.1M based on SEC Form 4 filings.
Can I get alerts for CYTK insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at CYTOKINETICS INC (CYTK). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
CYTOKINETICS INC is in the Healthcare sector.