Rafael Amado files SEC Form 4 disclosures for Zai Lab Ltd. They have made 18 open-market trades across 3 companies since 2019, most recently 2026-04-06.
CIK 0001662119
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ZLAB | 57,022 | $1.3M |
| ALLO | 550,410 | $721K |
| PSTX | 58,950 | $560K |
| ADAP | 17,237 | $946 |
| Total | $2.6M |
Shares reported on the most recent Form 4, priced at the 2026-04-08 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ZLAB | SELL | 2026-04-06 | 2026-04-08 | $20.45 | $56K | +19.3% | -12.2% | -8.6% |
| ZLAB | SELL | 2026-04-02 | 2026-04-03 | $20.39 | $202K | +13.9% | +4.0% | -6.3% |
| ZLAB | SELL | 2026-03-13 | 2026-03-16 | $18.63 | $55K | -7.4% | +23.0% | -6.2% |
| ZLAB | SELL | 2026-03-03 | 2026-03-05 | $17.38 | $174K | -0.8% | +6.9% | -10.5% |
| ZLAB | SELL | 2025-12-31 | 2026-01-02 | $17.43 | $188K | +8.3% | -10.0% | +12.7% |
| ZLAB | SELL · 10b5-1 | 2025-08-08 | 2025-08-12 | $35.00 | $105K | -0.3% | -7.5% | -37.7% |
| ZLAB | SELL | 2025-04-04 | 2025-04-07 | $33.11 | $201K | -3.1% | -4.7% | +19.2% |
| ZLAB | SELL | 2025-04-02 | 2025-04-03 | $35.89 | $541K | -11.5% | -9.8% | +3.4% |
| ZLAB | SELL · 10b5-1 | 2025-03-17 | 2025-03-19 | $38.41 | $230K | -3.9% | -21.0% | -1.0% |
| ZLAB | SELL | 2024-12-31 | 2025-01-02 | $26.28 | $399K | -0.5% | +10.8% | +47.4% |
| ZLAB | SELL · 10b5-1 | 2024-08-12 | 2024-08-14 | $16.20 | $50K | +17.3% | +26.4% | +78.5% |
| ZLAB | SELL | 2024-04-04 | 2024-04-05 | $15.67 | $31K | -12.6% | +7.7% | +10.3% |
| ZLAB | SELL · 10b5-1 | 2024-03-15 | 2024-03-19 | $18.86 | $48K | -7.2% | -21.0% | +5.4% |
| ZLAB | SELL | 2024-01-02 | 2024-01-03 | $26.30 | $1.0M | -7.9% | -14.9% | -39.3% |
| ALLO | SELL · 10b5-1 | 2022-08-02 | 2022-08-02 | $11.97 | $24K | +35.1% | +11.4% | -19.3% |
| ALLO | SELL · 10b5-1 | 2022-07-05 | 2022-07-06 | $11.44 | $23K | +7.7% | +33.2% | -5.3% |
| ALLO | SELL · 10b5-1 | 2022-06-21 | 2022-06-22 | $11.18 | $22K | -2.3% | +11.0% | +10.9% |
| ALLO | SELL | 2022-05-19 | 2022-05-19 | $7.40 | $85K | +1.7% | +50.2% | +108.9% |
| ALLO | SELL | 2022-03-15 | 2022-03-17 | $7.71 | $40K | +13.6% | -11.9% | +8.8% |
| ALLO | SELL | 2021-10-01 | 2021-10-04 | $24.35 | $560K | -29.3% | -17.0% | -37.0% |
| ALLO | SELL | 2021-03-15 | 2021-03-17 | $38.05 | $213K | -8.3% | -9.8% | -30.5% |
| ALLO | SELL | 2020-10-07 | 2020-10-08 | $39.40 | $1.3M | -12.3% | -31.8% | -34.7% |
| ALLO | SELL | 2020-10-01 | 2020-10-02 | $36.37 | $709K | +17.4% | -9.6% | -31.4% |
| ADAP | SELL | 2019-08-06 | 2019-08-07 | $2.06 | $23K | -13.4% | -22.3% | -45.5% |
| ADAP | SELL | 2019-01-14 | 2019-01-16 | $5.37 | $16K | -13.2% | -6.8% | -20.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.