List of insiders holdings for CYTOKINETICS INC:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | SEVIN ROSEN FUND VI LP 10% Owner | 2012-02-13 15:39:58 | 3,484,914 0 | 3,484,914 | Form 13G |
| 2 | DOW STEPHEN M DOMENIK STEPHEN L BAYLESS JON W JAGGERS JOHN V PHIPPS CHARLES H KIMZEY JACKIE R SHRIGLEY DAVID A SCHUELE ALAN R Director 10% Owner | 2004-10-29 18:59:54 | 0 3,164,002 | 3,164,002 | Form 3/A |
| 3 | Eastern Capital LTD Portfolio Services Ltd. DART KENNETH BRYAN 10% Owner | 2021-02-19 17:02:48 | 3,062,748 0 | 3,062,748 | Form 13G |
| 4 | BVF PARTNERS L P BIOTECHNOLOGY VALUE FUND L P BVF I GP LLC BIOTECHNOLOGY VALUE FUND II LP BVF II GP LLC Biotechnology Value Trading Fund OS LP BVF Partners OS Ltd. BVF GP HOLDINGS LLC BVF INC LAMPERT MARK N See Explanaton of Responses | 2021-01-13 16:56:36 | 2,728,035 0 | 2,728,035 | Form 13G |
| 5 | MAYFIELD IX MAYFIELD IX MANAGEMENT LLC MAYFIELD ASSOCIATES FUND IV L P UNGER WILLIAM D AUKEN WENDELL G VAN III FONG KEVIN A MYERS FRANK G JR DALAL YOGEN K 10% Owner | 2008-02-14 16:10:57 | 2,031,713 0 | 2,031,713 | Form 13G |
| 6 | SRB ASSOCIATES VI LP 10% Owner | 2004-10-29 18:19:56 | 0 1,742,950 | 1,742,950 | Form 3/A |
| 7 | MORGANS DAVID J JR EVP-Preclinical R&D | 2011-03-01 18:28:52 | 861,000 0 | 861,000 | Form 4 |
| 8 | CREDIT SUISSE FIRST BOSTON CREDIT SUISSE FIRST BOSTON EQUITY PARTNERS L.P. CREDIT SUISSE FIRST BOSTON EQUITY PARTNERS (BERMUDA) L.P. EMA PRIVATE EQUITY FUND 2000 L.P. EMA PARTNERS FUND 2000 L.P. CREDIT SUISSE FIRST BOSTON U.S. EXECUTIVE ADVISORS L.P. CREDIT SUISSE FIRST BOSTON ADVISORY PARTNERS LLC CREDIT SUISSE FIRST BOSTON (BERMUDA) LTD HEMISPHERE PRIVATE EQUITY PARTNERS LTD. HEMISPHERE PRIVATE EQUITY PARTNERS CHARITABLE TRUST 10% Owner | 2011-02-14 11:56:56 | 848,853 0 | 848,853 | Form 13G |
| 9 | SRB ASSOCIATES VIII LP 10% Owner | 2004-04-29 20:00:48 | 0 771,052 | 771,052 | Form 4 |
| 10 | SEVIN ROSEN FUND VIII LP 10% Owner | 2004-04-29 20:01:48 | 755,631 0 | 755,631 | Form 4 |
| 11 | SRB ASSOCIATES VII LP 10% Owner | 2004-04-29 19:58:37 | 0 650,000 | 650,000 | Form 4 |
| 12 | SEVIN ROSEN FUND VII LP 10% Owner | 2004-04-29 19:59:21 | 625,950 0 | 625,950 | Form 4 |
| 13 | Sabry James H Former Executive Chairman | 2010-06-04 16:32:00 | 579,354 0 | 579,354 | Form 4 |
| 14 | Blum Robert I President & CEO | 2025-12-29 16:09:03 | 399,604 4,166 | 403,770 | Form 4 |
| 15 | SPUDICH JAMES A Director | 2011-05-19 17:57:42 | 349,070 0 | 349,070 | Form 4 |
| 16 | RABSON MICHAEL SVP Business Dev/Legal & GC | 2009-12-21 19:33:38 | 315,043 0 | 315,043 | Form 4 |
| 17 | TRAUTMAN JAY K VP, Discovery Research | 2008-03-04 15:16:32 | 308,807 0 | 308,807 | Form 4 |
| 18 | Cragg David Chief HR & Admin Officer | 2022-03-08 18:45:52 | 153,233 0 | 153,233 | Form 4 |
| 19 | Callos Andrew EVP, Chief Commercial Officer | 2026-01-05 16:26:59 | 149,440 0 | 149,440 | Form 4 |
| 20 | SCHLOSSBERG MARK A SVP - Legal & General Counsel | 2022-03-15 19:34:41 | 147,347 0 | 147,347 | Form 4 |
| 21 | Malik Fady Ibraham EVP Research & Development | 2025-12-29 16:06:38 | 141,536 0 | 141,536 | Form 4 |
| 22 | Jaw Ching SVP Finance & CFO | 2023-03-07 16:15:17 | 137,346 0 | 137,346 | Form 4 |
| 23 | DOW STEPHEN M Director | 2013-01-04 18:37:36 | 130,588 0 | 130,588 | Form 4 |
| 24 | SEVIN ROSEN VI AFFILIATES FUND LP 10% Owner | 2004-04-29 19:57:24 | 127,235 0 | 127,235 | Form 4 |
| 25 | Hessekiel Jeffrey Chief Legal & Admin Officer | 2025-11-17 16:02:48 | 87,297 0 | 87,297 | Form 4 |
| 26 | Pletcher Brett A EVP, Chief Legal Officer | 2024-09-03 17:06:12 | 84,179 0 | 84,179 | Form 4 |
| 27 | HOMCY CHARLES J Director | 2008-05-27 17:35:58 | 82,500 0 | 82,500 | Form 4 |
| 28 | Morgan Bradley Paul SVP Drug Discovery & Early Dev | 2017-09-01 19:20:43 | 81,791 0 | 81,791 | Form 4 |
| 29 | HENDERSON JOHN T Director | 2026-01-16 16:17:21 | 74,912 83 | 74,995 | Form 4 |
| 30 | Lee Sung EVP, Chief Financial Officer | 2025-12-29 16:03:39 | 71,416 0 | 71,416 | Form 4 |
| 31 | Schnieders Elisabeth Sr. VP, Business Development | 2017-03-02 19:06:55 | 63,919 0 | 63,919 | Form 4 |
| 32 | McDowell Caryn Gordon GC & Chief Compliance Officer | 2018-03-01 19:12:17 | 62,548 0 | 62,548 | Form 4 |
| 33 | WOLFF ANDREW A SVP & CMO | 2017-03-02 19:07:54 | 62,255 0 | 62,255 | Form 4 |
| 34 | MCDADE MARK Director | 2009-05-22 13:54:21 | 57,500 0 | 57,500 | Form 4 |
| 35 | RODDY PETER S SVP Finance & CAO | 2018-03-01 19:12:32 | 51,520 0 | 51,520 | Form 4 |
| 36 | CHARPENTIER BONNIE SVP Regulatory & Compliance | 2017-03-02 19:04:39 | 49,004 0 | 49,004 | Form 4 |
| 37 | Sheridan Gail A VP, Human Resources | 2004-07-27 16:37:23 | 45,000 0 | 45,000 | Form 3/A |
| 38 | BARBARI SHARON SURREY EVP, Finance & CFO | 2017-03-02 19:07:31 | 40,323 0 | 40,323 | Form 4 |
| 39 | RUTTER WILLIAM J Director | 2004-07-27 16:35:00 | 35,340 0 | 35,340 | Form 3/A |
| 40 | WIERENGA WENDELL Director | 2026-01-16 16:20:42 | 32,542 0 | 32,542 | Form 4 |
| 41 | WIERENGA WENDALL Director | 2025-07-16 17:44:25 | 32,345 0 | 32,345 | Form 4 |
| 42 | Wysenski Nancy Director | 2026-01-16 16:22:27 | 30,971 0 | 30,971 | Form 4 |
| 43 | GAGE L PATRICK Director | 2021-11-08 17:23:08 | 28,932 1,850 | 30,782 | Form 4 |
| 44 | Daly James M Director | 2025-08-20 08:04:20 | 27,450 0 | 27,450 | Form 4 |
| 45 | COSTA SANTO J Director | 2024-05-16 18:06:20 | 24,236 0 | 24,236 | Form 4 |
| 46 | SEVIN ROSEN VII AFFILIATES FUND LP 10% Owner | 2004-04-29 20:00:07 | 24,050 0 | 24,050 | Form 4 |
| 47 | Bhanji Muna Director | 2025-05-15 18:51:22 | 23,510 0 | 23,510 | Form 4 |
| 48 | HEIDRICH A GRANT III Director | 2011-01-05 14:16:23 | 23,148 0 | 23,148 | Form 4 |
| 49 | PARSHALL B LYNNE Director | 2025-11-19 18:57:42 | 22,933 0 | 22,933 | Form 4 |
| 50 | SMITH SANDFORD D Director | 2024-01-03 16:25:31 | 18,801 0 | 18,801 | Form 4 |
| 51 | Harrington Robert Arthur Director | 2026-01-16 16:15:32 | 18,739 0 | 18,739 | Form 4 |
| 52 | Wong Robert VP, Chief Accounting Officer | 2024-12-05 16:32:36 | 18,655 0 | 18,655 | Form 4 |
| 53 | Landry Robert E Director | 2025-05-14 19:27:29 | 18,213 0 | 18,213 | Form 4 |
| 54 | SEVIN ROSEN VIII AFFILIATES FUND LP 10% Owner | 2004-04-29 20:15:34 | 15,421 0 | 15,421 | Form 4 |
| 55 | Kaye Edward M. MD Director | 2026-01-16 16:18:57 | 10,174 0 | 10,174 | Form 4 |
| 56 | Califf Robert Director | 2022-01-04 16:46:46 | 6,003 0 | 6,003 | Form 4 |
| 57 | SCHMERTZLER MICHAEL See Exhibit 1 | 2010-11-04 14:32:48 | 0 0 | 0 | Form 4 |
| 58 | GILBERT DENISE Director | 2016-01-22 18:37:39 | 0 0 | 0 | Form 4/A |