Robert I. Blum
CIK: 0001288859
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
CYTOKINETICS INC
Discretionary Trading P&L
Holdings
Transaction History (78 total)
- Nov 2, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $62.81$471K - Nov 2, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Oct 12, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Oct 12, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $62.88$472K - Sep 28, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Sep 28, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $65.46$491K - Sep 15, 2026CYTK
CYTOKINETICS INC
Sale(S)Indirect97.9K shares at avg. $69.33$6.8M - Sep 14, 2026CYTK
CYTOKINETICS INC
Gift(G)Indirect97.9K shares- - Sep 14, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $73.44$551K - Sep 14, 2026CYTK
CYTOKINETICS INC
Gift(G)Direct1.4K shares- - Sep 14, 2026CYTK
CYTOKINETICS INC
Gift(G)Direct97.9K shares- - Sep 14, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Aug 31, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Aug 31, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $70.24$527K - Aug 10, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $76.76$576K - Aug 10, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Jul 27, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $80.87$607K - Jul 27, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$80K - Jul 13, 2026CYTK
CYTOKINETICS INC
Exercise(M)Direct7.5K shares at avg. $10.60$79K - Jul 13, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct10 shares at avg. $82.02$820.2 - Jul 13, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $82.02$614K - Jul 1, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $84.92$637K - Jun 15, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $70.46$528K - May 27, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $77.21$579K - May 14, 2026CYTK
CYTOKINETICS INC
Sale(S)Direct7.5K shares at avg. $77.92$584K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Nov 2, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $62.81 | $471,075 | Direct |
| Nov 2, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Oct 12, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Oct 12, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $62.88 | $471,600 | Direct |
| Sep 28, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Sep 28, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $65.46 | $490,950 | Direct |
| Sep 15, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 97,926 | $69.33 | $6,789,210 | Indirect |
| Sep 14, 2026 | CYTK CYTOKINETICS INC | Gift(G) | 97,926 | - | $0 | Indirect |
| Sep 14, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $73.44 | $550,800 | Direct |
| Sep 14, 2026 | CYTK CYTOKINETICS INC | Gift(G) | 1,350 | - | $0 | Direct |
| Sep 14, 2026 | CYTK CYTOKINETICS INC | Gift(G) | 97,926 | - | $0 | Direct |
| Sep 14, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Aug 31, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Aug 31, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $70.24 | $526,800 | Direct |
| Aug 10, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $76.76 | $575,700 | Direct |
| Aug 10, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Jul 27, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $80.87 | $606,525 | Direct |
| Jul 27, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,500 | $10.60 | $79,500 | Direct |
| Jul 13, 2026 | CYTK CYTOKINETICS INC | Exercise(M) | 7,490 | $10.60 | $79,394 | Direct |
| Jul 13, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 10 | $82.02 | $820 | Direct |
| Jul 13, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,490 | $82.02 | $614,330 | Direct |
| Jul 1, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $84.92 | $636,900 | Direct |
| Jun 15, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $70.46 | $528,450 | Direct |
| May 27, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $77.21 | $579,075 | Direct |
| May 14, 2026 | CYTK CYTOKINETICS INC | Sale(S) | 7,500 | $77.92 | $584,400 | Direct |
1-25 of 78 transactions
About Blum Robert I
Blum Robert I (SEC CIK 0001288859) files insider reports with the SEC as President & CEO of CYTOKINETICS INC (CYTK).
Signal8 holds 51 ownership filings by Blum Robert I, all Form 4s, filed between Sep 3, 2024 and Nov 2, 2026. Those filings report 78 transactions, from Sep 3, 2024 to Nov 2, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Blum Robert I's filings is in SOUTH SAN FRANCISCO, CA.
Recent filings by Blum Robert I
- Nov 2, 2026: Open-market sale of CYTK shares (Form 4, code S).
- Nov 2, 2026: Option exercise of CYTK shares (Form 4, code M).
- Oct 12, 2026: Option exercise of CYTK shares (Form 4, code M).
- Oct 12, 2026: Open-market sale of CYTK shares (Form 4, code S).
- Sep 28, 2026: Option exercise of CYTK shares (Form 4, code M).
Other insiders filing for CYTOKINETICS INC (CYTK)
- Malik Fady Ibraham, EVP Research & Development
- Wysenski Nancy, Director
- Kaye Edward M. MD, Director
- Harrington Robert Arthur, Director
- Daly James M, Director
- WIERENGA WENDELL, Director