InsiderTape plots every Form 4 on the price chart and flags cluster buys, CEO conviction, and first buys in years the moment they file. Start a free 7-day trial, cancel anytime.
START FREE TRIAL →Robert I Blum, President & CEO, is a corporate insider tracked by InsiderTape across 2 companies. The public record shows 98 open-market SEC Form 4 transactions: 1 purchase worth $78K and 97 sales worth $43.0M, reported from Aug 5, 21 to Jul 27, 26. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 27, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $80.87 | $607K |
| Jul 1, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $84.92 | $637K |
| Jun 15, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $70.46 | $528K |
| May 27, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $77.21 | $579K |
| May 14, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $77.92 | $584K |
| Apr 29, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $59.62 | $447K |
| Apr 15, 26 | CYTKCYTOKINETICS INC | SELL | 7.5K | $65.38 | $490K |
| Mar 17, 26 | CYTKCYTOKINETICS INC | SELL | 23.9K | $62.15 | $1.5M |
| Mar 9, 26 | CYTKCYTOKINETICS INC | SELL | 7.9K | $60.72 | $482K |
| Oct 30, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $62.86 | $314K |
| Oct 16, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $60.03 | $300K |
| Oct 1, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $55.05 | $275K |
| Sep 15, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $49.77 | $249K |
| Sep 2, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $48.76 | $244K |
| Aug 15, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $38.42 | $192K |
| Jul 29, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $36.45 | $182K |
| Jul 14, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $38.15 | $191K |
| Jul 1, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $33.55 | $168K |
| Jun 16, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $33.80 | $169K |
| Jun 2, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $31.22 | $156K |
| May 16, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $30.93 | $155K |
| Apr 29, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $40.96 | $205K |
| Apr 10, 25 | CYTKCYTOKINETICS INC | SELL | 5.0K | $36.77 | $184K |
| Mar 31, 25 | CYTKCYTOKINETICS INC | SELL | 15.0K | $40.75 | $611K |
| Mar 17, 25 | CYTKCYTOKINETICS INC | SELL | 25.0K | $44.65 | $1.1M |
| Mar 6, 25 | CYTKCYTOKINETICS INC | SELL | 17.0K | $43.44 | $737K |
| Mar 5, 25 | CYTKCYTOKINETICS INC | SELL | 25.0K | $43.23 | $1.1M |
| Mar 3, 25 | CYTKCYTOKINETICS INC | SELL | 8.7K | $42.88 | $375K |
| Dec 2, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $50.76 | $254K |
| Nov 18, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $50.55 | $253K |
| Nov 1, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $51.63 | $258K |
| Oct 9, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $55.61 | $278K |
| Sep 30, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $52.14 | $261K |
| Sep 16, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $55.99 | $280K |
| Sep 3, 24 | CYTKCYTOKINETICS INC | SELL | 5.0K | $57.03 | $285K |
| Aug 12, 24 | CYTKCYTOKINETICS INC | SELL | 11.5K | $55.17 | $634K |
| Jul 30, 24 | CYTKCYTOKINETICS INC | SELL | 11.5K | $59.49 | $684K |
| Jul 10, 24 | CYTKCYTOKINETICS INC | SELL | 11.5K | $54.29 | $624K |
| Jul 1, 24 | CYTKCYTOKINETICS INC | SELL | 11.5K | $54.05 | $622K |
| Jun 17, 24 | CYTKCYTOKINETICS INC | SELL | 11.6K | $52.60 | $608K |
| Jun 4, 24 | CYTKCYTOKINETICS INC | SELL | 22.5K | $48.85 | $1.1M |
| Feb 13, 24 | CYTKCYTOKINETICS INC | SELL | 12.5K | $76.85 | $961K |
| Jan 31, 24 | CYTKCYTOKINETICS INC | SELL | 12.5K | $79.57 | $995K |
| Jan 19, 24 | CYTKCYTOKINETICS INC | SELL | 12.5K | $81.42 | $1.0M |
| Jan 2, 24 | CYTKCYTOKINETICS INC | SELL | 12.5K | $85.08 | $1.1M |
| Dec 18, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $36.95 | $462K |
| Nov 30, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $32.99 | $412K |
| Nov 15, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $34.57 | $432K |
| Oct 30, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $32.17 | $402K |
| Oct 16, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $33.70 | $421K |
| Oct 6, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $30.00 | $375K |
| Sep 13, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $34.90 | $436K |
| Aug 25, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $33.99 | $425K |
| Aug 11, 23 | CYTKCYTOKINETICS INC | SELL | 11.7K | $32.37 | $379K |
| Aug 1, 23 | CYTKCYTOKINETICS INC | SELL | 10.7K | $32.63 | $349K |
| Jul 13, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $35.28 | $441K |
| Jul 3, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $32.60 | $408K |
| Jun 12, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $37.06 | $463K |
| May 31, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $37.67 | $471K |
| May 16, 23 | CYTKCYTOKINETICS INC | SELL | 12.5K | $37.41 | $468K |