Zalevsky Jonathan — SEC Form 4 filings
SEC reporting owner CIK 1789857. 20 Form 4 filings on record with FilingPulse; latest filed 2026-08-20.
Transaction summary — filings shown
Covers all 20 filings on record, filed 2024-02-22 to 2026-08-20. 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): 20 legs across 17 filings — 122,886 shares, $1,167,034 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 9.
- Largest priced transaction: sale of 5,681 shares @ $70.00 ($397,670) in NEKTAR THERAPEUTICS, filed 2026-07-02.
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 |
|---|---|---|---|---|---|
| NEKTAR THERAPEUTICS (NKTR) | Chief R&D Officer | 20 | — | 20 legs · 122,886 sh · $1,167,034 | 9 |
Form 4 filings — Zalevsky Jonathan
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 186 @ $71.98 | EDGAR |
| 2026-07-24 | 4 | NEKTAR THERAPEUTICS (NKTR) | Grant/award (A): 16,500 (derivative) @ $0 | EDGAR |
| 2026-07-02 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 5,681 @ $70 | EDGAR |
| 2026-06-17 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 5,538 @ $60.71 | EDGAR |
| 2026-05-21 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 199 @ $65.51 | EDGAR |
| 2026-02-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 180 @ $73 | EDGAR |
| 2026-01-22 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 3,867 @ $35.67 | EDGAR |
| 2025-12-23 | 4 | NEKTAR THERAPEUTICS (NKTR) | Grant/award (A): 6,250 @ $0 · Grant/award (A): 25,000 (derivative) @ $0 | EDGAR |
| 2025-11-25 | 4 | NEKTAR THERAPEUTICS (NKTR) | Grant/award (A): 2,666 @ $0 · Sale (S): 1,157 @ $54.28 · Grant/award (A): 4,766 (derivative) @ $0 | EDGAR |
| 2025-09-08 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 793 @ $32.43 · Sale (S): 432 @ $33.60 · Sale (S): 189 @ $34.41 · Sale (S): 307 @ $35.69 | EDGAR |
| 2025-09-04 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 485 @ $30.10 | EDGAR |
| 2025-08-21 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 725 @ $26.59 · Grant/award (A): 16,666 (derivative) @ $0 | EDGAR |
| 2025-05-21 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 10,712 @ $0.67 | EDGAR |
| 2025-02-21 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 10,300 @ $1.01 | EDGAR |
| 2024-12-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 51,115 @ $0.94 | EDGAR |
| 2024-12-17 | 4 | NEKTAR THERAPEUTICS (NKTR) | Grant/award (A): 135,000 @ $0 · Grant/award (A): 270,000 (derivative) @ $0 · Grant/award (A): 375,000 (derivative) @ $0 | EDGAR |
| 2024-11-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 7,785 @ $1.01 | EDGAR |
| 2024-08-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 6,866 @ $1.28 | EDGAR |
| 2024-05-20 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 7,355 @ $1.75 | EDGAR |
| 2024-02-22 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 9,014 @ $0.68 | 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.
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