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$ Value

$0

Shares

10,800

Price

$0

Filed

Apr 3

Insider

Name

Du Ying

Title

Chairperson & CEO

CIK

0001731790

Roles

Director Officer

Transaction Details

Transaction Date

2026-04-01

Code

M

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

10,800

Footnotes

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. | ADSs acquired upon vesting of Restricted Share Units ("RSUs"). | Each RSU represents a contingent right to receive one ADS. | These ADSs were sold automatically to cover taxes upon vesting of RSUs. | Each performance-based share unit ("PSU") represents a contingent right to receive one ADS. | The reporting person was granted PSUs on July 2, 2025 based on the satisfaction of specified performance criteria between January 1, 2025 through December 31, 2025. On March 4, 2026, the performance-based vesting conditions were confirmed for PSUs representing 25,579 ADSs. The PSUs vest in full on July 2, 2028, the third anniversary of the date of grant, subject to continuous service. | The RSUs vest in equal annual installments over five years beginning on 04/01/2023, 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. | The RSUs vested in equal annual installments over five years beginning on 04/01/2022, 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. | The RSUs vest in equal annual installments over four years beginning on 04/03/2025, 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.

Filing Info

Accession No.

0000905148-26-001544

Form Type

4

Issuer CIK

0001704292

Du Ying's History

Date Ticker Type Value
2026-04-06 ZLAB $54K
2026-04-02 ZLAB M
2026-04-02 ZLAB $114K
2026-04-02 ZLAB M $0
2026-04-01 ZLAB M
2026-04-01 ZLAB M
2026-04-01 ZLAB M $0
2026-04-01 ZLAB M $0
2026-03-04 ZLAB A $0
2025-12-11 ZLAB G $0

Other Insiders at ZLAB (90d)

Insider Bought Sold Last
Amado Rafael
See Remarks
$258K 2026-04-06
Smiley Joshua L
See Remarks
$258K 2026-04-06
Du Ying
Chairperson & CEO
$168K 2026-04-06
Edmondson Frazor Titus III
Chief Legal Officer
$111K 2026-04-06
Chen Yajing
Chief Financial Officer
$123K 2026-04-06