Robert I Blum insider trades: Cytokinetics (CYTK) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Robert reports to the SEC
Open-market buys and sales
232 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | CYTK | ↓ Sell | 7,500 | $62.81 | $471K | Direct | Nov 2, 2026 (0d) |
| Oct 12, 2026 | CYTK | ↓ Sell | 7,500 | $62.88 | $472K | Direct | Oct 13, 2026 (1d) |
| Sep 28, 2026 | CYTK | ↓ Sell | 7,500 | $65.46 | $491K | Direct | Sep 28, 2026 (0d) |
| Sep 15, 2026 | CYTK | ↓ Sell | 97,926 | $69.33 | $6.8M | by Trust 3. Beneficial Ownership Disclai | Sep 15, 2026 (0d) |
| Sep 14, 2026 | CYTK | ↓ Sell | 7,500 | $73.44 | $551K | Direct | Sep 15, 2026 (1d) |
| Aug 31, 2026 | CYTK | ↓ Sell | 7,500 | $70.24 | $527K | Direct | Aug 31, 2026 (0d) |
| Aug 10, 2026 | CYTK | ↓ Sell | 7,500 | $76.76 | $576K | Direct | Aug 10, 2026 (0d) |
| Jul 13, 2026 | CYTK | ↓ Sell | 7,500 | $82.02 | $615K | Direct | Jul 14, 2026 (1d) |
| Jul 1, 2026 | CYTK | ↓ Sell | 7,500 | $84.92 | $637K | Direct | Jul 2, 2026 (1d) |
| Jun 15, 2026 | CYTK | ↓ Sell | 7,500 | $70.46 | $528K | Direct | Jun 15, 2026 (0d) |
| May 27, 2026 | CYTK | ↓ Sell | 7,500 | $77.21 | $579K | Direct | May 28, 2026 (1d) |
| May 14, 2026 | CYTK | ↓ Sell | 7,500 | $77.92 | $584K | Direct | May 14, 2026 (0d) |
| Apr 29, 2026 | CYTK | ↓ Sell | 7,500 | $59.62 | $447K | Direct | Apr 29, 2026 (0d) |
| Apr 1, 2026 | CYTK | ↓ Sell | 7,500 | $66.63 | $500K | Direct | Apr 1, 2026 (0d) |
| Mar 17, 2026 | CYTK | ↓ Sell | 36,601 | $62.15 | $2.3M | Direct | Mar 18, 2026 (1d) |
| Mar 9, 2026 | CYTK | ↓ Sell | 7,931 | $60.72 | $482K | Direct | Mar 10, 2026 (1d) |
| Oct 30, 2025 | CYTK | ↓ Sell | 5,000 | $62.86 | $314K | Direct | Oct 30, 2025 (0d) |
| Oct 16, 2025 | CYTK | ↓ Sell | 5,000 | $60.03 | $300K | Direct | Oct 16, 2025 (0d) |
| Oct 1, 2025 | CYTK | ↓ Sell | 5,000 | $55.05 | $275K | Direct | Oct 1, 2025 (0d) |
| Sep 15, 2025 | CYTK | ↓ Sell | 5,000 | $49.77 | $249K | Direct | Sep 15, 2025 (0d) |
| Sep 2, 2025 | CYTK | ↓ Sell | 5,000 | $48.76 | $244K | Direct | Sep 2, 2025 (0d) |
| Aug 15, 2025 | CYTK | ↓ Sell | 5,000 | $38.42 | $192K | Direct | Aug 15, 2025 (0d) |
| Jul 29, 2025 | CYTK | ↓ Sell | 5,000 | $36.45 | $182K | Direct | Jul 31, 2025 (2d) |
| Jul 14, 2025 | CYTK | ↓ Sell | 5,000 | $38.15 | $191K | Direct | Jul 15, 2025 (1d) |
| Jul 1, 2025 | CYTK | ↓ Sell | 5,000 | $33.55 | $168K | Direct | Jul 2, 2025 (1d) |
| Jun 16, 2025 | CYTK | ↓ Sell | 5,000 | $33.80 | $169K | Direct | Jun 16, 2025 (0d) |
| Jun 2, 2025 | CYTK | ↓ Sell | 5,000 | $31.22 | $156K | Direct | Jun 2, 2025 (0d) |
| May 16, 2025 | CYTK | ↓ Sell | 5,000 | $30.93 | $155K | Direct | May 16, 2025 (0d) |
| Apr 29, 2025 | CYTK | ↓ Sell | 5,000 | $40.96 | $205K | Direct | Apr 29, 2025 (0d) |
| Apr 10, 2025 | CYTK | ↓ Sell | 5,000 | $36.77 | $184K | Direct | Apr 10, 2025 (0d) |
| Mar 31, 2025 | CYTK | ↓ Sell | 15,000 | $40.75 | $611K | Direct | Mar 31, 2025 (0d) |
| Mar 17, 2025 | CYTK | ↓ Sell | 25,000 | $44.65 | $1.1M | Direct | Mar 17, 2025 (0d) |
| Mar 17, 2025 | CYTK | ↓ Sell | 12,648 | $44.38 | $561K | Direct | Mar 17, 2025 (0d) |
| Mar 6, 2025 | CYTK | ↓ Sell | 16,970 | $43.44 | $737K | Direct | Mar 7, 2025 (1d) |
| Mar 5, 2025 | CYTK | ↓ Sell | 25,000 | $43.23 | $1.1M | Direct | Mar 5, 2025 (0d) |
| Mar 3, 2025 | CYTK | ↓ Sell | 8,743 | $42.88 | $375K | Direct | Mar 5, 2025 (2d) |
| Dec 2, 2024 | CYTK | ↓ Sell | 5,000 | $50.76 | $254K | Direct | Dec 2, 2024 (0d) |
| Nov 18, 2024 | CYTK | ↓ Sell | 5,000 | $50.55 | $253K | Direct | Nov 19, 2024 (1d) |
| Nov 1, 2024 | CYTK | ↓ Sell | 5,000 | $51.63 | $258K | Direct | Nov 4, 2024 (3d) |
| Oct 9, 2024 | CYTK | ↓ Sell | 5,000 | $55.61 | $278K | Direct | Oct 10, 2024 (1d) |
| Sep 30, 2024 | CYTK | ↓ Sell | 5,000 | $52.14 | $261K | Direct | Sep 30, 2024 (0d) |
| Sep 16, 2024 | CYTK | ↓ Sell | 5,000 | $55.99 | $280K | Direct | Sep 17, 2024 (1d) |
| Sep 3, 2024 | CYTK | ↓ Sell | 5,000 | $57.03 | $285K | Direct | Sep 3, 2024 (0d) |
| Aug 12, 2024 | CYTK | ↓ Sell | 11,500 | $55.17 | $634K | Direct | Aug 12, 2024 (0d) |
| Jul 30, 2024 | CYTK | ↓ Sell | 11,500 | $59.49 | $684K | Direct | Jul 31, 2024 (1d) |
| Jul 10, 2024 | CYTK | ↓ Sell | 11,500 | $54.29 | $624K | Direct | Jul 10, 2024 (0d) |
| Jul 1, 2024 | CYTK | ↓ Sell | 11,500 | $54.05 | $622K | Direct | Jul 1, 2024 (0d) |
| Jun 17, 2024 | CYTK | ↓ Sell | 22,500 | $52.60 | $1.2M | Direct | Jun 17, 2024 (0d) |
| Jun 4, 2024 | CYTK | ↓ Sell | 22,500 | $48.85 | $1.1M | Direct | Jun 7, 2024 (3d) |
| Feb 13, 2024 | CYTK | ↓ Sell | 12,500 | $76.85 | $961K | Direct | Feb 13, 2024 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CYTK insiders
Open-market trades in the last 12 months
About Robert I Blum's insider trades
Robert I Blum is President & CEO at Cytokinetics (CYTK). Since Nov 8, 2005, Robert has reported 1 open-market purchase worth $78K and 231 sales worth $61.7M on SEC Form 4. In the last 12 months: 16 sales ($16.5M).
Their filings also include option exercises (175 filings), grants and awards (26 filings), shares withheld for taxes (20 filings), gifts (8 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CYTK insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.