Du Ying
SEC CIK 1731790 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ZLAB | Zai Lab Ltd | COB, CEO, Dir | 1.23M | — | $82.25M | 82 | 2021-07-01 | 2026-07-01 |
Most active insiders at ZLAB, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Du Ying | COB, CEO, Dir | — | $8.58M |
| 2 | Edmondson Frazor Titus III | CLO | — | $1.01M |
| 3 | Amado Rafael | See Remarks | — | $675.0K |
| 4 | Lis William | Dir | — | $340.0K |
| 5 | Smiley Joshua L | See Remarks | — | $294.3K |
| 6 | Chen Yajing | CFO | — | $239.3K |
| 7 | GAYNOR RICHARD | Dir | $65.8K | — |
| 8 | Leung Nisa | Dir | — | — |
| 9 | Vounatsos Michel | Dir | — | — |
| 10 | Morrison Scott W | Dir | — | — |
Transactions 82
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +29.0K | 1.23M | +2% | — |
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $19.14 | -11.4K | 1.22M | -0.9% | -$218.8K |
| D | 2026-07-01 16:24 | 2026-06-29 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 1.21M | +2% | — |
| D | 2026-07-01 16:24 | 2026-06-30 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $18.53 | -7,026 | 1.20M | -0.6% | -$130.2K |
| D | 2026-06-29 16:17 | 2026-06-25 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +58.8K | 1.22M | +5% | — |
| D | 2026-06-29 16:17 | 2026-06-26 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $17.46 | -24.5K | 1.19M | -2% | -$428.5K |
| M | 2026-05-28 16:19 | 2026-05-26+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -107.7K | 1.16M | -9% | $0 |
| DT | 2026-05-21 16:19 | 2026-05-19 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +261.1K | 1.38M | +23% | +$454.3K |
| DT | 2026-05-21 16:19 | 2026-05-19 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $18.75 | -117.4K | 1.27M | -8% | -$2.20M |
| DMT | 2026-05-19 16:18 | 2026-05-15+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.17M | +9% | +$174.0K |
| DMT | 2026-05-19 16:18 | 2026-05-15+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.87 | -100.0K | 1.12M | -8% | -$1.99M |
| DMT | 2026-05-15 16:45 | 2026-05-13+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.17M | +9% | +$174.0K |
| DMT | 2026-05-15 16:45 | 2026-05-13+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $20.03 | -100.0K | 1.12M | -8% | -$2.00M |
| 2026-04-08 19:34 | 2026-04-06 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale | $20.45 | -2,653 | 1.12M | -0.2% | -$54.2K | |
| DM | 2026-04-03 17:58 | 2026-04-01+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +20.9K | 1.13M | +2% | — |
| D | 2026-04-03 17:58 | 2026-04-02 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $20.39 | -5,576 | 1.13M | -0.5% | -$113.7K |
| DT | 2026-03-12 | 2026-03-10 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $19.41 | -116.9K | 1.11M | -10% | -$2.27M |
| DMT | 2026-03-12 | 2026-03-10 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +263.7K | 1.23M | +27% | +$458.9K |
| DT | 2026-03-12 | 2026-03-11 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.08 | -1,067 | 1.11M | -0.1% | -$20.4K |
| DMT | 2026-03-10 | 2026-03-06+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.01M | +11% | +$174.0K |
| DMT | 2026-03-10 | 2026-03-06+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.23 | -100.0K | 964.2K | -9% | -$1.92M |
| DMT | 2026-03-06 | 2026-03-04+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $19.19 | -100.0K | 964.2K | -9% | -$1.92M |
| DMT | 2026-03-06 | 2026-03-04+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.74 | +100.0K | 1.01M | +11% | +$174.0K |
| M | 2025-12-12 | 2025-12-10+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | +74.1K | 964.2K | +8% | $0 |
| D | 2025-09-03 | 2025-08-29 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $1.20 | +604.4K | 1.14M | +113% | +$725.3K |
| D | 2025-09-03 | 2025-08-29 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $32.59 | -251.3K | 890.0K | -22% | -$8.19M |
| DMT | 2025-08-14 | 2025-08-12+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $34.84 | -96.4K | 537.0K | -15% | -$3.36M |
| DMT | 2025-08-14 | 2025-08-12+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +96.4K | 583.3K | +20% | +$57.8K |
| DMT | 2025-08-12 | 2025-08-08+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $34.69 | -100.0K | 537.0K | -16% | -$3.47M |
| DMT | 2025-08-12 | 2025-08-08+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +100.0K | 587.0K | +21% | +$60.0K |
| D | 2025-07-03 | 2025-07-02 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $35.23 | -7,072 | 537.0K | -1% | -$249.1K |
| D | 2025-07-03 | 2025-07-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 544.0K | +3% | — |
| D | 2025-07-01 | 2025-06-27 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 533.0K | +3% | — |
| D | 2025-07-01 | 2025-06-30 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $35.52 | -6,918 | 526.0K | -1% | -$245.7K |
| D | 2025-06-27 | 2025-06-26 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $36.13 | -23.7K | 515.0K | -4% | -$855.2K |
| D | 2025-06-27 | 2025-06-25 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +58.8K | 538.7K | +12% | — |
| DMT | 2025-05-15 | 2025-05-13+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $28.34 | -96.4K | 482.1K | -17% | -$2.73M |
| DMT | 2025-05-15 | 2025-05-13+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +96.4K | 529.9K | +22% | +$57.8K |
| DMT | 2025-05-13 | 2025-05-09+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $29.53 | -100.0K | 479.9K | -17% | -$2.95M |
| DMT | 2025-05-13 | 2025-05-09+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +100.0K | 529.9K | +23% | +$60.0K |
| D | 2025-04-07 | 2025-04-03 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +6,750 | 482.8K | +1% | — |
| D | 2025-04-07 | 2025-04-04 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $33.11 | -2,945 | 479.9K | -0.6% | -$97.5K |
| DM | 2025-04-03 | 2025-04-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +14.2K | 481.9K | +3% | — |
| D | 2025-04-03 | 2025-04-02 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $35.89 | -5,808 | 476.0K | -1% | -$208.4K |
| M | 2025-03-18 | 2025-03-14+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -26.5K | 478.1K | -5% | $0 |
| DMT | 2025-03-06 | 2025-03-04+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $34.48 | -96.4K | 519.4K | -16% | -$3.32M |
| DMT | 2025-03-06 | 2025-03-04+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +96.4K | 544.1K | +22% | +$57.8K |
| DMT | 2025-03-04 | 2025-02-28+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $33.46 | -100.0K | 541.3K | -16% | -$3.35M |
| DMT | 2025-03-04 | 2025-02-28+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +100.0K | 544.1K | +23% | +$60.0K |
| 2024-12-13 | 2024-12-11 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -500.0K | 494.1K | -50% | $0 | |
| 2024-08-19 | 2024-08-13 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -87.8K | 994.1K | -8% | $0 | |
| D | 2024-07-02 | 2024-06-28 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +18.0K | 1.09M | +2% | — |
| D | 2024-07-02 | 2024-07-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $17.48 | -7,013 | 1.08M | -0.6% | -$122.6K |
| D | 2024-06-27 | 2024-06-25 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +58.8K | 1.17M | +5% | — |
| D | 2024-06-27 | 2024-06-26 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $17.90 | -23.9K | 1.14M | -2% | -$428.5K |
| DM | 2024-04-03 | 2024-04-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $16.72 | +14.2K | 1.11M | +1% | +$237.4K |
| DM | 2024-04-03 | 2024-04-02 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $16.15 | -5,787 | 1.11M | -0.5% | -$93.5K |
| M | 2024-03-15 | 2024-03-13 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -33.9K | 1.10M | -3% | $0 |
| D | 2024-01-03 | 2024-01-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | — | +31.6K | 1.14M | +3% | — |
| D | 2024-01-03 | 2024-01-03 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $26.12 | -8,380 | 1.13M | -0.7% | -$218.9K |
| 2023-06-30 | 2023-06-29 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | A - Grant | $26.45 | +71.9K | 1.11M | +7% | +$1.90M | |
| D | 2023-06-26 | 2023-06-23 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $25.30 | -23.1K | 1.08M | -2% | -$585.4K |
| D | 2023-06-26 | 2023-06-23 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $25.30 | +58.8K | 1.06M | +6% | +$1.49M |
| DM | 2023-04-03 | 2023-03-31 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $33.26 | +14.2K | 1.01M | +1% | +$472.3K |
| DM | 2023-04-03 | 2023-03-31 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $33.26 | -5,588 | 996.2K | -0.6% | -$185.9K |
| DA | 2023-03-08 | 2023-03-06 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $40.55 | -120.9K | 994.1K | -11% | -$4.90M |
| DMA | 2023-03-08 | 2023-03-03 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -852 | 815.4K | -0.1% | $0 |
| DA | 2023-03-08 | 2023-03-06 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +300.0K | 1.11M | +37% | +$180.0K |
| DM | 2023-03-07 | 2023-03-03+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -44.0K | 994.1K | -4% | $0 |
| D | 2023-03-07 | 2023-03-06 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $0.00 | -120.9K | 994.9K | -11% | $0 |
| D | 2023-03-07 | 2023-03-06 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.00 | +300.0K | 1.12M | +37% | $0 |
| M | 2022-12-09 | 2022-01-05+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | -144.2K | 1.00M | -13% | $0 |
| 2022-12-09 | 2022-04-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | F - Tax | $45.47 | -828 | 979.0K | -0.1% | -$37.6K | |
| I | 2022-12-09 | 2022-01-05 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | G - Gift | $0.00 | +475 | 475 | New | $0 |
| D | 2022-04-05 | 2022-04-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.00 | +3,400 | 1.01M | +0.3% | $0 |
| M | 2021-09-08 | 2021-09-07 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale | $150.73 | -29.8K | 1.04M | -3% | -$4.49M |
| DM | 2021-09-03 | 2021-09-01+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $145.80 | -81.3K | 1.12M | -7% | -$11.86M |
| D | 2021-09-03 | 2021-09-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +111.1K | 1.12M | +11% | +$66.7K |
| DM | 2021-08-03 | 2021-08-02+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $144.99 | -111.1K | 1.03M | -10% | -$16.11M |
| D | 2021-08-03 | 2021-08-02 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +111.1K | 1.12M | +11% | +$66.7K |
| DM | 2021-07-02 | 2021-07-01+ | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | S - Sale+OE | $175.61 | -111.1K | 1.01M | -10% | -$19.51M |
| D | 2021-07-02 | 2021-07-01 | ZLAB | Zai Lab Ltd | Du Ying | COB, CEO, Dir | M - OptEx | $0.6 | +111.1K | 1.12M | +11% | +$66.7K |
Purchase Sale Sale after option exercise All abbreviations