The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Blum Robert I since 2017.
This trader's CIK number is 1288859.
At the time of last reporting, Blum Robert I was the President & CEO of Cytokinetics Inc. (stock ticker symbol CYTK).
Also see all insider trading activities at Cytokinetics Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | CYTK | 0 | $0 | 139,618 | $5,746,994 | 0 | $0 |
| 2024 | CYTK | 0 | $0 | 153,500 | $9,568,673 | 113,767 | $758,825 |
| 2023 | CYTK | 0 | $0 | 247,500 | $8,721,211 | 247,500 | $2,087,874 |
| 2022 | CYTK | 0 | $0 | 200,000 | $8,312,778 | 200,000 | $1,651,150 |
| 2021 | CYTK | 0 | $0 | 104,143 | $2,792,557 | 187,475 | $1,424,845 |
| 2020 | CYTK | 0 | $0 | 104,950 | $2,131,589 | 94,189 | $570,140 |
| 2019 | CYTK | 0 | $0 | 46,000 | $481,402 | 0 | $0 |
| 2018 | CYTK | 0 | $0 | 36,000 | $284,972 | 0 | $0 |
| 2017 | CYTK | 0 | $0 | 30,000 | $411,860 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-09-02 | CYTK | Sale | 5,000 | 48.76 | 243,800 |
| 2025-08-15 | CYTK | Sale | 5,000 | 38.42 | 192,100 |
| 2025-07-29 | CYTK | Sale | 5,000 | 36.45 | 182,250 |
| 2025-07-14 | CYTK | Sale | 5,000 | 38.15 | 190,750 |
| 2025-07-01 | CYTK | Sale | 5,000 | 33.55 | 167,750 |
| 2025-06-16 | CYTK | Sale | 5,000 | 33.80 | 169,000 |
| 2025-06-02 | CYTK | Sale | 5,000 | 31.22 | 156,100 |
| 2025-05-16 | CYTK | Sale | 5,000 | 30.93 | 154,650 |
| 2025-04-10 | CYTK | Sale | 5,000 | 36.77 | 183,850 |
| 2025-03-31 | CYTK | Sale | 15,000 | 40.75 | 611,250 |
| 2025-03-17 | CYTK | Sale | 12,648 | 44.38 | 561,318 |
| 2025-03-17 | CYTK | Sale | 25,000 | 44.65 | 1,116,250 |
| 2025-03-06 | CYTK | Sale | 16,970 | 43.44 | 737,176 |
| 2025-03-05 | CYTK | Sale | 25,000 | 43.23 | 1,080,750 |
| 2024-12-02 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-12-02 | CYTK | Sale | 5,000 | 50.76 | 253,800 |
| 2024-11-18 | CYTK | Sale | 5,000 | 50.55 | 252,750 |
| 2024-11-18 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-11-01 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-11-01 | CYTK | Sale | 5,000 | 51.63 | 258,150 |
| 2024-10-09 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-10-09 | CYTK | Sale | 5,000 | 55.61 | 278,050 |
| 2024-09-30 | CYTK | Sale | 5,000 | 52.14 | 260,700 |
| 2024-09-30 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-09-16 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-09-16 | CYTK | Sale | 5,000 | 55.99 | 279,950 |
| 2024-09-03 | CYTK | Sale | 5,000 | 57.03 | 285,150 |
| 2024-09-03 | CYTK | Option Ex | 5,000 | 6.67 | 33,350 |
| 2024-08-12 | CYTK | Option Ex | 11,500 | 6.67 | 76,705 |
| 2024-08-12 | CYTK | Sale | 11,500 | 55.17 | 634,455 |
| 2024-07-30 | CYTK | Option Ex | 11,500 | 6.67 | 76,705 |
| 2024-07-30 | CYTK | Sale | 11,500 | 59.49 | 684,135 |
| 2024-07-10 | CYTK | Option Ex | 5,767 | 6.67 | 38,465 |
| 2024-07-10 | CYTK | Sale | 11,500 | 54.29 | 624,335 |
| 2024-07-01 | CYTK | Sale | 11,500 | 54.05 | 621,575 |
| 2024-06-04 | CYTK | Sale | 22,500 | 48.85 | 1,099,125 |
| 2024-02-13 | CYTK | Sale | 12,500 | 76.85 | 960,624 |
| 2024-02-13 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2024-01-31 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2024-01-31 | CYTK | Sale | 12,500 | 79.57 | 994,624 |
| 2024-01-19 | CYTK | Sale | 12,500 | 81.42 | 1,017,750 |
| 2024-01-19 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2024-01-02 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2024-01-02 | CYTK | Sale | 12,500 | 85.08 | 1,063,500 |
| 2023-12-18 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-12-18 | CYTK | Sale | 12,500 | 36.95 | 461,875 |
| 2023-11-30 | CYTK | Sale | 12,500 | 32.99 | 412,375 |
| 2023-11-30 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-11-15 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-11-15 | CYTK | Sale | 12,500 | 34.57 | 432,125 |
| 2023-10-30 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-10-30 | CYTK | Sale | 12,500 | 32.17 | 402,125 |
| 2023-10-16 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-10-16 | CYTK | Sale | 12,500 | 33.70 | 421,250 |
| 2023-10-06 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-10-06 | CYTK | Sale | 12,500 | 30.00 | 375,000 |
| 2023-09-13 | CYTK | Sale | 12,500 | 34.90 | 436,212 |
| 2023-09-13 | CYTK | Option Ex | 12,500 | 6.67 | 83,375 |
| 2023-08-25 | CYTK | Sale | 12,500 | 33.99 | 424,875 |
| 2023-08-25 | CYTK | Option Ex | 12,500 | 7.32 | 91,437 |
| 2022-12-21 | CYTK | Option Ex | 10,000 | 9.65 | 96,500 |
| 2022-12-21 | CYTK | Sale | 10,000 | 43.92 | 439,240 |
| 2023-08-11 | CYTK | Option Ex | 12,500 | 8.80 | 110,062 |
| 2023-08-11 | CYTK | Sale | 12,500 | 32.37 | 404,587 |
| 2023-08-01 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-08-01 | CYTK | Sale | 12,500 | 32.63 | 407,862 |
| 2023-07-13 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-07-13 | CYTK | Sale | 12,500 | 35.27 | 440,937 |
| 2023-07-03 | CYTK | Sale | 12,500 | 32.60 | 407,500 |
| 2023-07-03 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-06-12 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-06-12 | CYTK | Sale | 12,500 | 37.06 | 463,250 |
| 2023-05-31 | CYTK | Sale | 12,500 | 37.67 | 470,875 |
| 2023-05-31 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-05-16 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-05-16 | CYTK | Sale | 12,500 | 37.41 | 467,624 |
| 2023-04-28 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-04-28 | CYTK | Sale | 12,500 | 37.68 | 471,000 |
| 2023-04-14 | CYTK | Sale | 12,500 | 35.61 | 445,125 |
| 2023-04-14 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-03-28 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-03-28 | CYTK | Sale | 12,500 | 35.05 | 438,124 |
| 2023-03-06 | CYTK | Option Ex | 12,500 | 9.65 | 120,625 |
| 2023-03-06 | CYTK | Sale | 12,500 | 39.94 | 499,250 |
| 2022-12-05 | CYTK | Option Ex | 10,000 | 9.65 | 96,500 |
| 2022-12-05 | CYTK | Sale | 10,000 | 39.30 | 392,969 |
| 2022-11-21 | CYTK | Sale | 10,000 | 40.89 | 408,900 |
| 2022-11-21 | CYTK | Option Ex | 10,000 | 9.65 | 96,500 |
| 2022-11-21 | CYTK | Option Ex | 10,000 | 9.65 | 96,500 |
| 2022-11-21 | CYTK | Sale | 10,000 | 40.89 | 408,900 |
| 2022-11-02 | CYTK | Option Ex | 10,000 | 8.80 | 88,050 |
| 2022-11-02 | CYTK | Sale | 10,000 | 42.17 | 421,700 |
| 2022-10-19 | CYTK | Sale | 10,000 | 47.86 | 478,600 |
| 2022-10-19 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-10-03 | CYTK | Sale | 10,000 | 50.40 | 504,000 |
| 2022-10-03 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-09-19 | CYTK | Sale | 10,000 | 51.42 | 514,200 |
| 2022-09-19 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-09-07 | CYTK | Sale | 10,000 | 49.11 | 491,100 |
| 2022-09-07 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-08-01 | CYTK | Sale | 10,000 | 41.26 | 412,600 |
| 2022-08-01 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-07-18 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-07-18 | CYTK | Sale | 10,000 | 40.49 | 404,900 |
| 2022-07-06 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-07-06 | CYTK | Sale | 10,000 | 44.38 | 443,800 |
| 2022-06-15 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-06-15 | CYTK | Sale | 10,000 | 39.40 | 394,000 |
| 2022-06-06 | CYTK | Sale | 10,000 | 41.23 | 412,299 |
| 2022-06-06 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-05-16 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-05-16 | CYTK | Sale | 10,000 | 43.11 | 431,070 |
| 2022-04-20 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-04-20 | CYTK | Sale | 10,000 | 37.89 | 378,870 |
| 2022-04-04 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-04-04 | CYTK | Sale | 10,000 | 38.78 | 387,830 |
| 2022-03-21 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-03-21 | CYTK | Sale | 10,000 | 36.03 | 360,340 |
| 2022-03-02 | CYTK | Sale | 10,000 | 36.31 | 363,140 |
| 2022-03-02 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-02-16 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2022-02-16 | CYTK | Sale | 10,000 | 36.50 | 364,970 |
| 2022-02-07 | CYTK | Sale | 10,000 | 33.86 | 338,590 |
| 2022-02-07 | CYTK | Option Ex | 10,000 | 7.96 | 79,600 |
| 2021-11-12 | CYTK | Option Ex | 4,143 | 6.00 | 24,858 |
| 2021-11-12 | CYTK | Sale | 4,143 | 39.63 | 164,170 |
| 2021-10-29 | CYTK | Sale | 5,000 | 35.80 | 178,995 |
| 2021-10-29 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-10-14 | CYTK | Sale | 5,000 | 37.74 | 188,715 |
| 2021-10-14 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-09-30 | CYTK | Sale | 5,000 | 34.01 | 170,065 |
| 2021-09-30 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-09-15 | CYTK | Option Ex | 5,000 | 6.15 | 30,750 |
| 2021-09-15 | CYTK | Sale | 5,000 | 32.66 | 163,314 |
| 2021-09-02 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-09-02 | CYTK | Sale | 5,000 | 33.12 | 165,575 |
| 2021-08-18 | CYTK | Sale | 5,000 | 31.14 | 155,710 |
| 2021-08-18 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-08-05 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-08-05 | CYTK | Sale | 5,000 | 29.12 | 145,605 |
| 2021-07-22 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-07-22 | CYTK | Sale | 5,000 | 29.82 | 149,120 |
| 2021-07-06 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-07-06 | CYTK | Sale | 5,000 | 20.13 | 100,670 |
| 2021-06-03 | CYTK | Sale | 5,000 | 20.61 | 103,045 |
| 2021-06-03 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-05-07 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-05-07 | CYTK | Sale | 5,000 | 23.21 | 116,039 |
| 2021-04-30 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-04-30 | CYTK | Sale | 5,000 | 25.87 | 129,360 |
| 2021-04-12 | CYTK | Sale | 5,000 | 23.56 | 117,815 |
| 2021-04-12 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2021-03-22 | CYTK | Option Ex | 5,000 | 6.15 | 30,750 |
| 2021-03-22 | CYTK | Sale | 5,000 | 25.20 | 125,975 |
| 2021-03-08 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-03-08 | CYTK | Sale | 5,000 | 19.49 | 97,470 |
| 2021-02-26 | CYTK | Sale | 5,000 | 19.33 | 96,649 |
| 2021-02-26 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-02-18 | CYTK | Option Ex | 83,332 | 9.42 | 784,987 |
| 2021-02-10 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-02-10 | CYTK | Sale | 5,000 | 23.88 | 119,385 |
| 2021-01-29 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-01-29 | CYTK | Sale | 5,000 | 20.34 | 101,700 |
| 2021-01-20 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-01-20 | CYTK | Sale | 5,000 | 20.41 | 102,045 |
| 2021-01-04 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2021-01-04 | CYTK | Sale | 5,000 | 20.23 | 101,135 |
| 2020-12-16 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-12-16 | CYTK | Sale | 5,000 | 20.51 | 102,550 |
| 2020-12-04 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-12-04 | CYTK | Sale | 5,000 | 17.36 | 86,800 |
| 2020-11-23 | CYTK | Sale | 5,000 | 15.73 | 78,645 |
| 2020-11-23 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-11-10 | CYTK | Sale | 5,000 | 16.50 | 82,490 |
| 2020-11-10 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-10-29 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-10-29 | CYTK | Sale | 5,000 | 15.15 | 75,775 |
| 2020-10-13 | CYTK | Sale | 5,000 | 15.94 | 79,685 |
| 2020-10-13 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-10-02 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-10-02 | CYTK | Sale | 5,000 | 22.53 | 112,645 |
| 2020-09-21 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-09-21 | CYTK | Sale | 5,000 | 20.97 | 104,835 |
| 2020-09-11 | CYTK | Sale | 5,000 | 22.95 | 114,735 |
| 2020-09-11 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-09-04 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-09-04 | CYTK | Sale | 5,000 | 22.37 | 111,855 |
| 2020-08-18 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-08-18 | CYTK | Sale | 5,000 | 23.48 | 117,420 |
| 2020-08-05 | CYTK | Sale | 5,000 | 22.12 | 110,620 |
| 2020-08-05 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-07-28 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-07-28 | CYTK | Sale | 5,000 | 23.77 | 118,829 |
| 2020-07-16 | CYTK | Sale | 5,000 | 27.36 | 136,805 |
| 2020-07-16 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-07-06 | CYTK | Sale | 5,000 | 24.85 | 124,255 |
| 2020-07-06 | CYTK | Option Ex | 5,000 | 6.00 | 30,000 |
| 2020-06-24 | CYTK | Option Ex | 5,000 | 6.15 | 30,750 |
| 2020-06-24 | CYTK | Sale | 5,000 | 23.86 | 119,309 |
| 2020-06-11 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2020-06-11 | CYTK | Sale | 5,000 | 21.47 | 107,355 |
| 2020-05-29 | CYTK | Option Ex | 5,000 | 6.30 | 31,500 |
| 2020-05-29 | CYTK | Sale | 5,000 | 20.10 | 100,505 |
| 2020-05-18 | CYTK | Sale | 5,000 | 22.13 | 110,640 |
| 2020-05-18 | CYTK | Option Ex | 4,189 | 6.30 | 26,390 |
| 2020-05-01 | CYTK | Sale | 5,000 | 14.34 | 71,680 |
| 2020-01-15 | CYTK | Sale | 4,950 | 12.96 | 64,156 |
| 2019-12-16 | CYTK | Sale | 6,000 | 10.22 | 61,326 |
| 2019-11-15 | CYTK | Sale | 6,000 | 8.09 | 48,510 |
| 2019-10-15 | CYTK | Sale | 6,000 | 11.16 | 66,978 |
| 2019-09-16 | CYTK | Sale | 6,000 | 12.74 | 76,470 |
| 2019-08-15 | CYTK | Sale | 6,000 | 12.64 | 75,816 |
| 2019-07-15 | CYTK | Sale | 6,000 | 10.94 | 65,634 |
| 2019-06-17 | CYTK | Sale | 6,000 | 9.71 | 58,236 |
| 2019-01-04 | CYTK | Sale | 4,000 | 7.11 | 28,432 |
| 2018-12-06 | CYTK | Sale | 4,000 | 7.50 | 29,988 |
| 2018-11-05 | CYTK | Sale | 4,000 | 7.11 | 28,448 |
| 2018-10-05 | CYTK | Sale | 4,000 | 8.79 | 35,180 |
| 2018-09-05 | CYTK | Sale | 4,000 | 7.94 | 31,768 |
| 2018-08-03 | CYTK | Sale | 4,000 | 6.65 | 26,584 |
| 2018-07-05 | CYTK | Sale | 4,000 | 9.09 | 36,372 |
| 2018-06-05 | CYTK | Sale | 4,000 | 8.28 | 33,116 |
| 2018-05-04 | CYTK | Sale | 4,000 | 8.36 | 33,424 |
| 2018-04-05 | CYTK | Sale | 4,000 | 7.52 | 30,092 |
| 2017-11-01 | CYTK | Sale | 5,000 | 13.51 | 67,530 |
| 2017-10-02 | CYTK | Sale | 5,000 | 14.55 | 72,770 |
| 2017-09-01 | CYTK | Sale | 5,000 | 14.75 | 73,750 |
| 2017-08-01 | CYTK | Sale | 5,000 | 13.78 | 68,905 |
| 2017-07-03 | CYTK | Sale | 5,000 | 12.16 | 60,780 |
| 2017-06-01 | CYTK | Sale | 5,000 | 13.62 | 68,125 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Blum Robert I (President & CEO of Cytokinetics Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.