Lee Sung — SEC Form 4 filings
SEC reporting owner CIK 1793200. 17 Form 4 filings on record with FilingPulse; latest filed 2026-07-02.
Transaction summary — filings shown
Covers all 17 filings on record, filed 2024-02-26 to 2026-07-02. 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): 6 legs across 6 filings — 77,825 shares, $5,755,260 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 50.
- Largest priced transaction: sale of 38,730 shares @ $82.30 ($3,187,479) in CYTOKINETICS INC, filed 2026-06-29.
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) | EVP, Chief Financial Officer | 12 | — | 5 legs · 71,817 sh · $5,695,856 | 42 |
| Vir Biotechnology, Inc. (VIR) | EVP & Chief Financial Officer | 2 | — | 1 leg · 6,008 sh · $59,404 | 2 |
| Tango Therapeutics, Inc. (TNGX) | Director | 3 | — | — | 6 |
Form 4 filings — Lee Sung
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-02 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 1,112 @ $48.51 · Sale (S): 1,112 @ $87.79 · Option exercise (M): 1,112 (derivative) @ $0 | EDGAR |
| 2026-06-29 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 188 @ $44.36 · Option exercise (M): 822 @ $44.36 · Option exercise (M): 1,113 @ $48.51 · Option exercise (M): 188 @ $44.36 · Option exercise (M): 823 @ $44.36 · Sale (S): 3,134 @ $85 · +5 more | EDGAR |
| 2026-06-29 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 23,370 @ $48.51 · Option exercise (M): 9,307 @ $44.36 · Option exercise (M): 2,817 @ $44.36 · Option exercise (M): 1,113 @ $48.51 · Option exercise (M): 188 @ $44.36 · Option exercise (M): 822 @ $44.36 · +9 more | EDGAR |
| 2026-06-08 | 4 | Tango Therapeutics, Inc. (TNGX) | Grant/award (A): 570 @ $0 · Grant/award (A): 3,570 (derivative) @ $0 | EDGAR |
| 2026-05-05 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 23,906 @ $76.87 | EDGAR |
| 2026-05-01 | 4 | Tango Therapeutics, Inc. (TNGX) | Grant/award (A): 12,300 @ $0 · Grant/award (A): 5,200 (derivative) @ $0 | EDGAR |
| 2026-03-18 | 4 | CYTOKINETICS INC (CYTK) | Sale (S): 4,935 @ $62.15 | EDGAR |
| 2026-03-17 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 20,646 @ $0 · Grant/award (A): 1,665 (derivative) @ $0 · Grant/award (A): 29,480 (derivative) @ $0 | EDGAR |
| 2026-01-06 | 4 | Tango Therapeutics, Inc. (TNGX) | Grant/award (A): 10,000 @ $0 · Grant/award (A): 60,000 (derivative) @ $0 | EDGAR |
| 2025-12-29 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 2,152 @ $0 · Grant/award (A): 2,152 @ $0 · Tax withholding (F): 805 @ $62.72 | EDGAR |
| 2025-12-05 | 4 | CYTOKINETICS INC (CYTK) | Tax withholding (F): 1,560 @ $65.02 | EDGAR |
| 2025-06-03 | 4 | CYTOKINETICS INC (CYTK) | Tax withholding (F): 4,965 @ $31.21 | EDGAR |
| 2025-03-18 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 32,687 @ $0 · Grant/award (A): 9,016 (derivative) @ $0 · Grant/award (A): 41,326 (derivative) @ $0 | EDGAR |
| 2024-12-05 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 4,303 @ $0 · Tax withholding (F): 1,536 @ $51.51 · Grant/award (A): 4,304 @ $0 | EDGAR |
| 2024-06-03 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 34,684 @ $0 · Grant/award (A): 53,417 (derivative) @ $0 | EDGAR |
| 2024-03-28 | 4 | Vir Biotechnology, Inc. (VIR) | Sale (S): 6,008 @ $9.89 | EDGAR |
| 2024-02-26 | 4 | Vir Biotechnology, Inc. (VIR) | Grant/award (A): 40,000 @ $0 · Grant/award (A): 80,000 (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=1793200 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →