Blum Robert I — SEC Form 4 filings
SEC reporting owner CIK 1288859. 60 Form 4 filings on record with FilingPulse; latest filed 2026-09-15.
Transaction summary — filings shown
Covers the 50 most recent of 60 filings on record, filed 2024-08-12 to 2026-09-15. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 45 legs across 42 filings — 452,319 shares, $26,154,807 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 49.
- Largest priced transaction: sale of 97,926 shares @ $69.33 ($6,789,210) in CYTOKINETICS INC, filed 2026-09-15.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| CYTOKINETICS INC (CYTK) | President & CEO, Director | 50 | — | 45 legs · 452,319 sh · $26,154,807 | 49 |
Form 4 filings — Blum Robert I
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-15 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 7,500 @ $10.60 · Sale (S): 7,500 @ $73.44 · Gift (G): 1,350 @ $0 · Gift (G): 97,926 @ $0 · Gift (G): 97,926 @ $0 · Sale (S): 97,926 @ $69.33 · +1 more | EDGAR |
| 2026-08-31 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 7,500 @ $10.60 · Sale (S): 7,500 @ $70.24 · Option exercise (M): 7,500 (derivative) @ $0 | EDGAR |
| 2026-08-10 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 7,500 @ $10.60 · Sale (S): 7,500 @ $76.76 · Option exercise (M): 7,500 (derivative) @ $0 | EDGAR |
| 2026-07-27 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 7,500 @ $10.60 · Sale (S): 7,500 @ $80.87 · Option exercise (M): 7,500 (derivative) @ $0 | EDGAR |
| 2026-07-14 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 10 @ $82.02 · Option exercise (M): 7,490 @ $10.60 · Sale (S): 7,490 @ $82.02 · Option exercise (M): 7,490 (derivative) @ $0 | EDGAR |
| 2026-07-02 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $84.92 | EDGAR |
| 2026-06-15 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $70.46 | EDGAR |
| 2026-05-28 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $77.21 | EDGAR |
| 2026-05-14 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $77.92 | EDGAR |
| 2026-04-29 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $59.62 | EDGAR |
| 2026-04-15 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $65.38 | EDGAR |
| 2026-04-01 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,500 @ $66.63 | EDGAR |
| 2026-03-18 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 12,673 @ $62.15 · Sale (S): 23,928 @ $62.15 | EDGAR |
| 2026-03-17 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 75,258 @ $0 · Grant/award (A): 1,665 (derivative) @ $0 · Grant/award (A): 111,864 (derivative) @ $0 | EDGAR |
| 2026-03-10 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 7,931 @ $60.72 | EDGAR |
| 2025-12-29 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 5,765 @ $0 · Grant/award (A): 5,765 @ $0 · Tax withholding (F): 2,935 @ $62.72 | EDGAR |
| 2025-12-23 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 54,727 @ $6.67 · Tax withholding (F): 30,426 @ $68.18 · Option exercise (M): 16,506 @ $6.67 · Option exercise (M): 54,727 (derivative) @ $0 · Option exercise (M): 16,506 (derivative) @ $0 | EDGAR |
| 2025-12-05 | 4 | CYTOKINETICS INC (CYTK) | Tax withholding (F): 5,930 @ $65.02 | EDGAR |
| 2025-11-05 | 4 | CYTOKINETICS INC (CYTK) | Gift (G): 2,000 @ $0 | EDGAR |
| 2025-10-30 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $62.86 | EDGAR |
| 2025-10-16 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $60.03 | EDGAR |
| 2025-10-01 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $55.05 | EDGAR |
| 2025-09-15 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $49.77 | EDGAR |
| 2025-09-02 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $48.76 | EDGAR |
| 2025-08-15 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $38.42 | EDGAR |
| 2025-07-31 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $36.45 | EDGAR |
| 2025-07-15 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $38.15 | EDGAR |
| 2025-07-02 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $33.55 | EDGAR |
| 2025-06-16 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $33.80 | EDGAR |
| 2025-06-02 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $31.22 | EDGAR |
| 2025-05-16 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $30.93 | EDGAR |
| 2025-04-29 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $40.96 | EDGAR |
| 2025-04-10 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 5,000 @ $36.77 | EDGAR |
| 2025-03-31 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 15,000 @ $40.75 | EDGAR |
| 2025-03-18 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 116,096 @ $0 · Grant/award (A): 2,254 (derivative) @ $0 · Grant/award (A): 176,547 (derivative) @ $0 | EDGAR |
| 2025-03-17 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 25,000 @ $44.65 | EDGAR |
| 2025-03-17 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 12,648 @ $44.38 | EDGAR |
| 2025-03-07 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 16,970 @ $43.44 | EDGAR |
| 2025-03-05 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 8,743 @ $42.88 | EDGAR |
| 2025-03-05 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 25,000 @ $43.23 | EDGAR |
| 2024-12-05 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 11,529 @ $0 · Tax withholding (F): 5,843 @ $51.51 · Grant/award (A): 11,530 @ $0 | EDGAR |
| 2024-12-02 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $50.76 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-11-19 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $50.55 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-11-04 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $51.63 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-10-10 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $55.61 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-09-30 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $52.14 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-09-17 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $55.99 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-09-03 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 5,000 @ $6.67 · Sale (S): 5,000 @ $57.03 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-08-19 | 4 | CYTOKINETICS INC (CYTK) | Gift (G): 1,956 @ $0 | EDGAR |
| 2024-08-12 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 11,500 @ $6.67 · Sale (S): 11,500 @ $55.17 · Option exercise (M): 11,500 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=1288859 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →