Robert Arthur Harrington
CIK: 0001923988
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 (15 total)
- Oct 16, 2026CYTK
CYTOKINETICS INC
Award(A)Direct195 shares at avg. $63.92$12K - Jul 15, 2026CYTK
CYTOKINETICS INC
Award(A)Direct151 shares at avg. $82.62$12K - May 27, 2026CYTK
CYTOKINETICS INC
Award(A)Direct2.9K shares- - Apr 15, 2026CYTK
CYTOKINETICS INC
Award(A)Direct191 shares at avg. $65.37$12K - Jan 15, 2026CYTK
CYTOKINETICS INC
Award(A)Direct197 shares at avg. $63.44$12K - Dec 1, 2025CYTK
CYTOKINETICS INC
Sale(S)Direct2.2K shares at avg. $66.80$144K - Oct 15, 2025CYTK
CYTOKINETICS INC
Award(A)Direct199 shares at avg. $62.80$12K - Sep 2, 2025CYTK
CYTOKINETICS INC
Sale(S)Direct2.2K shares at avg. $48.67$105K - Jul 15, 2025CYTK
CYTOKINETICS INC
Award(A)Direct328 shares at avg. $38.01$12K - May 14, 2025CYTK
CYTOKINETICS INC
Award(A)Direct7.3K shares- - Apr 15, 2025CYTK
CYTOKINETICS INC
Award(A)Direct324 shares at avg. $38.56$12K - Apr 3, 2025CYTK
CYTOKINETICS INC
Sale(S)Direct450 shares at avg. $39.43$18K - Mar 4, 2025CYTK
CYTOKINETICS INC
Sale(S)Direct900 shares at avg. $42.50$38K - Jan 2, 2025CYTK
CYTOKINETICS INC
Award(A)Direct255 shares at avg. $48.93$12K - Oct 1, 2024CYTK
CYTOKINETICS INC
Award(A)Direct237 shares at avg. $52.60$12K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 16, 2026 | CYTK CYTOKINETICS INC | Award(A) | 195 | $63.92 | $12,464 | Direct |
| Jul 15, 2026 | CYTK CYTOKINETICS INC | Award(A) | 151 | $82.62 | $12,476 | Direct |
| May 27, 2026 | CYTK CYTOKINETICS INC | Award(A) | 2,851 | - | $0 | Direct |
| Apr 15, 2026 | CYTK CYTOKINETICS INC | Award(A) | 191 | $65.37 | $12,486 | Direct |
| Jan 15, 2026 | CYTK CYTOKINETICS INC | Award(A) | 197 | $63.44 | $12,498 | Direct |
| Dec 1, 2025 | CYTK CYTOKINETICS INC | Sale(S) | 2,150 | $66.80 | $143,620 | Direct |
| Oct 15, 2025 | CYTK CYTOKINETICS INC | Award(A) | 199 | $62.80 | $12,497 | Direct |
| Sep 2, 2025 | CYTK CYTOKINETICS INC | Sale(S) | 2,150 | $48.67 | $104,641 | Direct |
| Jul 15, 2025 | CYTK CYTOKINETICS INC | Award(A) | 328 | $38.01 | $12,467 | Direct |
| May 14, 2025 | CYTK CYTOKINETICS INC | Award(A) | 7,333 | - | - | Direct |
| Apr 15, 2025 | CYTK CYTOKINETICS INC | Award(A) | 324 | $38.56 | $12,493 | Direct |
| Apr 3, 2025 | CYTK CYTOKINETICS INC | Sale(S) | 450 | $39.43 | $17,744 | Direct |
| Mar 4, 2025 | CYTK CYTOKINETICS INC | Sale(S) | 900 | $42.50 | $38,250 | Direct |
| Jan 2, 2025 | CYTK CYTOKINETICS INC | Award(A) | 255 | $48.93 | $12,477 | Direct |
| Oct 1, 2024 | CYTK CYTOKINETICS INC | Award(A) | 237 | $52.60 | $12,466 | Direct |
1-15 of 15 transactions
About Harrington Robert Arthur
Harrington Robert Arthur (SEC CIK 0001923988) files insider reports with the SEC as Director of CYTOKINETICS INC (CYTK).
Signal8 holds 15 ownership filings by Harrington Robert Arthur, all Form 4s, filed between Oct 3, 2024 and Oct 20, 2026. Those filings report 15 transactions, from Oct 1, 2024 to Oct 16, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Harrington Robert Arthur's filings is in SOUTH SAN FRANCISCO, CA.
Recent filings by Harrington Robert Arthur
- Oct 16, 2026: Grant or award of CYTK shares (Form 4, code A).
- Jul 15, 2026: Grant or award of CYTK shares (Form 4, code A).
- May 27, 2026: Grant or award of CYTK shares (Form 4, code A).
- Apr 15, 2026: Grant or award of CYTK shares (Form 4, code A).
- Jan 15, 2026: Grant or award of CYTK shares (Form 4, code A).
Other insiders filing for CYTOKINETICS INC (CYTK)
- Blum Robert I, President & CEO
- Wysenski Nancy, Director
- Kaye Edward M. MD, Director
- Daly James M, Director
- WIERENGA WENDELL, Director
- HENDERSON JOHN T, Director