Company: ZLAB
Filing Date: 2025-04-18
Form Type: PRE 14A
Source: 0001628280-25-018384
Chunk: 25

Company: Zai Lab Ltd
Filing Date: 2025-04-18
Form: PRE 14A
Chunk 25
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 our shares on Nasdaq.

|       |     |   Share Price |     |              |
|       |     | Highest (HK$) |     | Lowest (HK$) |
| 2024  |     |               |     |              |
| April |     |         13.18 |     |        10.56 |
| May   |     |         17.98 |     |        12.40 |
| June  |     |         16.14 |     |        13.34 |

<div align='center'>-16-</div>

| July                         |     | 15.38 |     | 12.68 |
| August                       |     | 15.98 |     | 12.32 |
| September                    |     | 19.50 |     | 14.76 |
| October                      |     | 25.80 |     | 17.74 |
| November                     |     | 25.30 |     | 19.56 |
| December                     |     | 23.95 |     | 19.90 |
| 2025                         |     |       |     |       |
| January                      |     | 21.65 |     | 18.44 |
| February                     |     | 28.95 |     | 20.25 |
| March                        |     | 32.50 |     | 24.30 |
| April (up to April 11, 2025) |     | 30.75 |     | 20.20 |

Directors, Close Associations, and Core Connected Persons

The Directors will exercise the power of the Company to make repurchases pursuant to the Repurchase Mandate to be approved under Proposal 14 in accordance with the HK Listing Rules and the laws of the Cayman Islands.

None of the Directors nor, to the best of their knowledge having made all reasonable inquiries, any of their close associates (as defined under the HK Listing Rules), have any present intention to sell any shares to the Company under the Repurchase Mandate if such is approved by the shareholders.

No core connected persons (as defined under the HK Listing Rules) of the Company have notified the Company that they have a present intention to sell any shares to the Company, nor has any of them undertaken not to do so, in the event that the Repurchase Mandate is approved by the shareholders.

#### The HK Takeovers Code
If, on exercise of the power to rep