Form 4 for ZLAB Zai Lab Ltd
Accepted 2026-07-06 16:14:00 ET · period of report 2026-07-01 · accession 0000905148-26-003167 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | — | +29.0K | 1.23M | +2% | — |
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Du Ying | COB, CEO, Dir | F - Tax | $19.14 | -11.4K | 1.22M | -0.9% | -$218.8K |
| DM | 2026-07-06 16:14 | 2026-07-01+ | ZLAB | Du Ying | COB, CEO, Dir | M - OptEx | $0.00 | -29.0K | 33.1K | -47% | $0 |
| D | 2026-07-06 16:14 | 2026-07-02 | ZLAB | Du Ying | COB, CEO, Dir | A - Grant | $0.00 | +80.4K | 80.4K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | American Depositary Shares | 2026-07-01 | M | A | 18,000 | — | 1,221,784 | D | — | — | (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. (F2) ADSs acquired upon vesting of Restricted Share Units ("RSUs"). (F3) Each RSU represents a contingent right to receive one ADS. |
| 2 | Common | American Depositary Shares | 2026-07-01 | F | D | 7,083 | $19.15 | 1,214,701 | D | — | — | (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. (F4) These ADSs were withheld to cover taxes upon vesting of RSUs. |
| 3 | Common | American Depositary Shares | 2026-07-02 | M | A | 11,048 | — | 1,225,749 | D | — | — | (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. (F2) ADSs acquired upon vesting of Restricted Share Units ("RSUs"). (F3) Each RSU represents a contingent right to receive one ADS. |
| 4 | Common | American Depositary Shares | 2026-07-02 | F | D | 4,348 | $19.12 | 1,221,401 | D | — | — | (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. (F4) These ADSs were withheld to cover taxes upon vesting of RSUs. |
| 5 | Derivative | Restricted Share Units | 2026-07-01 | M | D | 18,000 | $0.00 | 36,000 | D | — · — to — | 18,000 American Depositary Shares | (F3) Each RSU represents a contingent right to receive one ADS. (F5) The RSUs vest in equal annual installments over four years beginning on 07/01/2025, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F5) The RSUs vest in equal annual installments over four years beginning on 07/01/2025, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. |
| 6 | Derivative | Restricted Share Units | 2026-07-02 | M | D | 11,048 | $0.00 | 33,146 | D | — · — to — | 11,048 American Depositary Shares | (F3) Each RSU represents a contingent right to receive one ADS. (F6) The RSUs vest in equal annual installments over four years beginning on 07/02/2026, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F6) The RSUs vest in equal annual installments over four years beginning on 07/02/2026, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. |
| 7 | Derivative | Restricted Share Units | 2026-07-02 | A | A | 80,393 | $0.00 | 80,393 | D | — · — to — | 80,393 American Depositary Shares | (F3) Each RSU represents a contingent right to receive one ADS. (F7) The RSUs vest in equal annual installments over four years beginning on 07/02/2027, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F7) The RSUs vest in equal annual installments over four years beginning on 07/02/2027, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting. (F1) Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs. |