Exhibit 99.1

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

Bilibili Inc.

(A company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability)

(Stock Code: 9626)

GRANT OF RESTRICTED SHARE UNITS

On December 15, 2025, the Company granted an aggregate of 2,014,815 RSUs pursuant to the Second Amended and Restated 2018 Share Incentive Plan to 147 Selected Employees of the Group (the “Grants”), of which 2 are executive Directors (the “Director Grants”), representing the same number of Class Z Ordinary Shares and approximately 0.49% of the total Shares of the Company (on a one share one vote basis) in issue as at the date of this announcement.

Details of the Grants are as follows:

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Among the Grants set out above, 412,000 RSUs were granted to Mr. Rui Chen, Chairman of the Board of Directors and Chief Executive Officer of the Company, and 412,000 RSUs were granted to Ms. Ni Li, Vice Chairwoman of the Board of Directors and Chief Operating Officer of the Company.

Pursuant to Rule 17.04(1) and the note to Rule 17.04(1) of the Listing Rules, the Corporate Governance Committee has made a recommendation on the Director Grants and the Director Grants have been approved by the Compensation Committee and the Board (including all independent non-executive Directors), save that each of Mr. Rui Chen and Ms. Ni Li has abstained from voting on the relevant resolutions in respect of their respective Grants.

2

The Grants are subject to the terms and conditions of the Second Amended and Restated 2018 Share Incentive Plan and the award agreements entered into between the Company and each of the Grantees.

The RSUs will be satisfied through utilizing the Class Z Ordinary Shares issued and reserved for future issuance upon the exercise or vesting of awards granted under the Company’s share incentive plans.

The Grants would not result in the options and awards granted and to be granted to (i) each individual Grantee in the 12-month period up to and including the date of such Grant in aggregate to exceed 1% of the Shares in issue (excluding treasury shares); or (ii) each related entity participant or Service Provider in the 12-month period up to and including the date of such Grant in aggregate to exceed 0.1% of the Shares in issue (excluding treasury shares).

None of the Grants is subject to approval by the shareholders of the Company. Except as disclosed above, none of the Grantees is a Director, chief executive or substantial shareholder (as defined in the Listing Rules) of the Company or an associate (as defined in the Listing Rules) of any of them.

Reasons for and Benefits of the Grants

The purpose of the Grants is to (i) promote the success and enhance the value of the Company by linking the personal interests of the Grantees to those of the Company’s shareholders and by providing such individuals with an incentive for outstanding performance to generate superior returns to the Company’s shareholders, and (ii) provide flexibility to the Company in its ability to motivate, attract, and retain the services of the Grantees upon whose judgment, interest, and special effort the successful conduct of the Company’s operation is largely dependent.

Class Z Ordinary Shares available for grant under the Second Amended and Restated 2018 Share Incentive Plan

The maximum aggregate number of Class Z Ordinary Shares which may be issued pursuant to all awards under the Second Amended and Restated 2018 Share Incentive Plan together with the number of Class Z Ordinary Shares which may be issued pursuant to any awards to be granted any other share schemes of the Company is 41,413,503 (the “Scheme Limit”), and within the Scheme Limit, the maximum number of Class Z Ordinary Shares which may be issued pursuant to all awards to be granted to Service Providers under the Second Amended and Restated 2018 Share Incentive Plan is 2,070,675 (the “Service Provider Sublimit”).

Upon the making of the Grants, the Company may grant further awards representing a total of 28,704,359 Class Z Ordinary Shares under the Scheme Limit, including awards representing a total of 2,070,675 Class Z Ordinary Shares to Service Providers under the Service Provider Sublimit.

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DEFINITIONS

In this announcement, the following expressions shall have the following meanings unless the context requires otherwise.

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Hong Kong, December 15, 2025

As at the date of this announcement, the Board comprises Mr. Rui Chen as the chairman, Ms. Ni Li and Mr. Yi Xu as Directors, Mr. JP Gan, Mr. Eric He, Mr. Feng Li and Mr. Guoqi Ding as independent Directors.

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