Ying Du
CIK 1731790 · Chairperson & CEO · last filed 2026-05-28
Ying Du is a Chairperson & CEO who has filed 53 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing, for ZLAB, was dated May 28, 2026. Across all open-market trades the lifetime net is −$133.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $19.8M 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.
$19.79M
1
53
-$133.30M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ZLAB | Chairperson & CEO | 1,159,058 | $17.07 | $19.79M | -$133.30M | 53 | 2026-05-28 |
Recent Filings
53 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-28 | ZLAB | Gift (G) | −107,700 | $0 | EDGAR |
| 2026-05-21 | ZLAB | Mixed | +143,657 | -$1.75M | EDGAR |
| 2026-05-19 | ZLAB | Mixed | — | -$1.81M | EDGAR |
| 2026-05-15 | ZLAB | Mixed | — | -$1.83M | EDGAR |
| 2026-04-08 | ZLAB | Sell (S) | −2,653 | -$54.2K | EDGAR |
| 2026-04-03 | ZLAB | Mixed | +15,374 | -$113.7K | EDGAR |
| 2026-03-16 | ZLAB | Grant (A) | — | $0 | EDGAR |
| 2026-03-12 | ZLAB | Mixed | +145,744 | -$1.84M | EDGAR |
| 2026-03-10 | ZLAB | Mixed | — | -$1.75M | EDGAR |
| 2026-03-06 | ZLAB | Mixed | — | -$1.75M | EDGAR |