Cytokinetics, Incorporated (CYTK) Insider Trading
Over the last 3 months, CYTK insiders made 0 open-market buys and 32 sales, a net sale of -$17.4M (SEC Form 4). Over the last 6 months, 348 institutions increased and 261 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
32
Net (3m)
-$17.4M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +16.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 1, 2026 | Callos Andrewofficer: EVP, Chief Commercial Officer | Option | 15,000 | $23.26 |
| Jun 1, 2026 | Callos Andrewofficer: EVP, Chief Commercial Officer | Sell | 15,000 | $74.08 |
| Jun 1, 2026 | PARSHALL B LYNNEdirector | Sell | 5,000 | $74.08 |
| Jun 1, 2026 | Kaye Edward M. MDdirector | Sell | 2,933 | $76.09 |
| May 28, 2026 | Blum Robert Idirector, officer: President & CEO | Sell | 7,500 | $77.21 |
| May 27, 2026 | Kaye Edward M. MDdirector | Grant | 2,851 | — |
| May 27, 2026 | Daly James Mdirector | Grant | 2,851 | — |
| May 27, 2026 | HENDERSON JOHN Tdirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | WIERENGA WENDELLdirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | Bhanji Munadirector | Grant | 2,851 | — |
| May 27, 2026 | Landry Robert Edirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | Bhanji Munadirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | HENDERSON JOHN Tdirector | Grant | 2,851 | — |
| May 27, 2026 | Wysenski Nancydirector | Grant | 2,851 | — |
| May 27, 2026 | Wysenski Nancydirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | Harrington Robert Arthurdirector | Grant | 2,851 | — |
| May 27, 2026 | PARSHALL B LYNNEdirector | Grant | 2,851 | — |
| May 27, 2026 | PARSHALL B LYNNEdirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | WIERENGA WENDELLdirector | Grant | 2,851 | — |
| May 27, 2026 | Harrington Robert Arthurdirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | Landry Robert Edirector | Grant | 2,851 | — |
| May 27, 2026 | Kaye Edward M. MDdirector | Grant | 4,301 | $77.15 |
| May 27, 2026 | Daly James Mdirector | Grant | 4,301 | $77.15 |
| May 20, 2026 | Malik Fady Ibrahamofficer: EVP Research & Development | Option | 3,500 | $7.80 |
| May 20, 2026 | Malik Fady Ibrahamofficer: EVP Research & Development | Sell | 3,500 | $75.69 |
| May 14, 2026 | Blum Robert Idirector, officer: President & CEO | Sell | 7,500 | $77.92 |
| May 5, 2026 | HENDERSON JOHN Tdirector | Sell | 20,000 | $75.97 |
| May 5, 2026 | Callos Andrewofficer: EVP, Chief Commercial Officer | Sell | 11,333 | $77.25 |
| May 5, 2026 | Lee Sungofficer: EVP, Chief Financial Officer | Sell | 23,906 | $76.87 |
| May 5, 2026 | Malik Fady Ibrahamofficer: EVP Research & Development | Option | 3,500 | $7.80 |
Source: CYTK SEC Form 4 filings, latest Jun 1, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CYTK positions over the last 6 months (SEC Form 13F).
Increased
348
New positions
183
Reduced
261
Sold out
107
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | Reduced | 17.7M | Feb 19, 2026 |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | Reduced | 17.5M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 16.5M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 16.4M | Feb 12, 2026 |
| FMR LLC | Reduced | 12.8M | Feb 17, 2026 |
| VANGUARD GROUP INC | Increased | 12.0M | Jan 29, 2026 |
| FMR LLC | Reduced | 10.7M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 8.0M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 7.9M | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 5.8M | May 8, 2026 |
| STATE STREET CORP | Increased | 5.8M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 5.7M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 5.5M | May 15, 2026 |
| DEEP TRACK CAPITAL, LP | Reduced | 3.3M | Feb 13, 2026 |
| AVORO CAPITAL ADVISORS LLC | New Position | 3.3M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.