Zalevsky Jonathan
Officer · NKTR
As of 2026-09-16, Zalevsky Jonathan has 25 Form 4 transactions on record across 1 company — 12 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $645K
- Indirect $0
| NKTR | direct | 9,570 sh | $645K |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | NKTR | Sale | 186 @ $71.98 | $13K | −1.9% of holding | 9,570 | Form 4 |
| 2026-06-30 | NKTR | Sale | 5,681 @ $70.00 | $398K | −36.8% of holding | 9,756 | Form 4 |
| 2026-06-15 | NKTR | Sale | 5,538 @ $60.71 | $336K | −26.4% of holding | 15,437 | Form 4 |
| 2026-05-19 | NKTR | Sale | 199 @ $65.51 | $13K | −0.9% of holding | 20,975 | Form 4 |
| 2026-02-18 | NKTR | Sale | 180 @ $73.00 | $13K | −0.8% of holding | 21,174 | Form 4 |
| 2026-01-20 | NKTR | Sale | 3,867 @ $35.67 | $138K | −15.3% of holding | 21,354 | Form 4 |
| 2025-11-25 | NKTR | Sale | 1,157 @ $54.28 | $63K | −5.7% of holding | 18,971 | Form 4 |
| 2025-09-04 | NKTR | Sale | 793 @ $32.43 | $26K | −4.1% of holding | 18,390 | Form 4 |
| 2025-09-04 | NKTR | Sale | 432 @ $33.60 | $15K | −2.3% of holding | 17,958 | Form 4 |
| 2025-09-04 | NKTR | Sale | 307 @ $35.69 | $11K | −1.7% of holding | 17,462 | Form 4 |
| 2025-09-04 | NKTR | Sale | 189 @ $34.41 | $7K | −1.1% of holding | 17,769 | Form 4 |
| 2025-09-02 | NKTR | Sale | 485 @ $30.10 | $15K | −2.5% of holding | 19,183 | Form 4 |
| 2025-08-19 | NKTR | Sale | 725 @ $26.59 | $19K | −3.6% of holding | 19,668 | Form 4 |
| 2025-05-19 | NKTR | Sale | 10,712 @ $0.67 | $7K | −3.4% of holding | 305,892 | Form 4 |
| 2025-02-19 | NKTR | Sale | 10,300 @ $1.01 | $10K | −3.2% of holding | 316,604 | Form 4 |
| 2024-12-19 | NKTR | Sale | 51,115 @ $0.94 | $48K | −13.5% of holding | 326,904 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-07-24 | NKTR | Award / grant | 16,500 | 16,500 | Form 4 |
| 2025-12-22 | NKTR | Award / grant | 6,250 | 25,221 | Form 4 |
| 2025-12-22 | NKTR | Award / grant | 25,000 | 25,000 | Form 4 |
| 2025-11-21 | NKTR | Award / grant | 2,666 | 20,128 | Form 4 |
| 2025-11-21 | NKTR | Award / grant | 4,766 | 4,766 | Form 4 |
| 2025-08-19 | NKTR | Award / grant | 16,666 | 16,666 | Form 4 |
| 2024-12-13 | NKTR | Award / grant | 270,000 | 270,000 | Form 4 |
| 2024-12-13 | NKTR | Award / grant | 375,000 | 375,000 | Form 4 |
| 2024-12-13 | NKTR | Award / grant | 135,000 | 378,019 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.