Jonathan Zalevsky
CIK 1789857 · Chief R&D Officer · last filed 2026-05-21
Jonathan Zalevsky is a Chief R&D Officer who has filed 41 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing shows the insider sold $13.0K of NKTR on May 21, 2026. Across all open-market trades the lifetime net is −$4.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.2M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$1.25M
1
41
-$4.17M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NKTR | Chief R&D Officer | 20,975 | $59.38 | $1.25M | -$4.17M | 41 | 2026-05-21 |
Recent Filings
41 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | NKTR | Sell (S) | −199 | -$13.0K | EDGAR |
| 2026-02-20 | NKTR | Sell (S) | −180 | -$13.1K | EDGAR |
| 2026-01-22 | NKTR | Sell (S) | −3,867 | -$137.9K | EDGAR |
| 2025-12-23 | NKTR | Grant (A) | +6,250 | $0 | EDGAR |
| 2025-11-25 | NKTR | Mixed | +1,509 | -$62.8K | EDGAR |
| 2025-09-08 | NKTR | Sell (S) | −1,721 | -$57.7K | EDGAR |
| 2025-09-04 | NKTR | Sell (S) | −485 | -$14.6K | EDGAR |
| 2025-08-21 | NKTR | Mixed | −725 | -$19.3K | EDGAR |
| 2025-05-21 | NKTR | Sell (S) | −10,712 | -$7.2K | EDGAR |
| 2025-02-21 | NKTR | Sell (S) | −10,300 | -$10.4K | EDGAR |