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.

This announcement is for information purposes only and is not intended to and does not constitute, or form part of, any offer to purchase or subscribe for or an invitation to purchase or subscribe for any securities of the Company, in any jurisdiction, whether in Hong Kong or the United States or elsewhere, nor shall there be any sale, issuance or transfer of securities of the Company in any jurisdiction in contravention of applicable law. This announcement does not constitute a prospectus, offering circular, notice, circular, brochure or advertisement offering to sell any securities of the Company to the public in Hong Kong or any other jurisdiction, nor is it an invitation to the public to make offers to subscribe for or purchase any securities of the Company, nor is it calculated to invite offers by the public to subscribe for or purchase any securities of the Company. This announcement must not be regarded as an inducement to subscribe for or purchase any securities of the Company, and no such inducement is intended. Neither the Company nor its sales agents nor any of their respective affiliates and advisers is offering, or is soliciting offers to buy, any securities of the Company in Hong Kong or any other jurisdiction through the publication of this announcement.

The convertible senior notes have not been and will not be registered in Hong Kong or under the United States Securities Act 1933, and may not be offered or sold in Hong Kong or the United States absent registration or an exemption from registration. Any public offering of convertible senior notes to be made in Hong Kong or the United States will be made by means of a prospectus that may be obtained from the Company and will contain detailed information about the Company and management, as well as financial statements. The Company does not intend to register any of the convertible senior notes in Hong Kong or the United States.

This announcement is not for release, publication or distribution, in whole or in part, in, into or from any jurisdiction where to do so would constitute a violation of the applicable laws or regulations of such jurisdiction.

Bilibili Inc.

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

(Stock Code: 9626)

OFFERING OF ADDITIONAL US$90 MILLION CONVERTIBLE SENIOR NOTES

Reference is made to the announcements of Bilibili Inc. (“Bilibili” or the “Company”) dated May 21, 2025 (the “Announcements”) in relation to (i) the offering of US$600 million in aggregate principal amount of convertible senior notes due 2030 (the “Notes Offering”), (ii) the grant of an option to the initial purchasers in the Notes Offering to purchase up to an additional US$90 million principal amount of the Notes, exercisable for settlement within a 30-day period beginning on, and including, the date on which the Notes are first issued (the “Optional Notes”), (iii) the Concurrent Delta Offering, and (iv) the Concurrent Repurchase. Unless otherwise defined, defined terms used in this announcement shall have the same meaning as those in the Announcements.

1

OFFERING OF THE OPTIONAL NOTES

The Board is pleased to announce on May 22, 2025 the Initial Purchasers exercised their right to purchase, severally and not jointly, all of the Optional Notes at the same purchase price as the Notes. The principal terms of the Optional Notes are the same as the Notes and are detailed in the Announcements.

The Company expects to raise net proceeds of US$589,450,000 from the Notes Offering and expects to raise additional net proceeds of US$88,650,000 from the Optional Notes, each after deducting the Initial Purchaser’s estimated fees, commissions and expenses. The Company plans to use the total net proceeds from such offering of US$678,100,000 to enhance its content ecosystem to facilitate user growth, facilitate IP asset creation, and unleash its inherent potential. The Company also plans to use the net proceeds from such offering to improve its overall monetization efficiency, fund the Concurrent Repurchase, fund future repurchases (from time to time) under its share repurchase program, and for other general corporate purposes.

EFFECT ON SHAREHOLDING STRUCTURE OF THE COMPANY FOLLOWING THE COMPLETION OF THE NOTES OFFERING AND THE OPTIONAL NOTES

Assuming there being no other change in the shareholding structure of the Company, the following table sets out the shareholding structure of the Company (i) as at May 20, 2025; (ii) immediately after the Concurrent Repurchase and completion of the Notes Offering and the Optional Notes (i.e. issue of the Notes and Optional Notes under the terms and conditions of the Purchase Agreement), assuming no conversion of the Notes or the Optional Notes; and (iii) immediately after the Concurrent Repurchase and the completion of the full conversion of the Notes and the Optional Notes at the initial Conversion Price:

2

Notes:

3

GENERAL MANDATE

The Conversion Shares and the Optional Notes Conversion Shares will be issued under the General Mandate. As at the date of this announcement, the General Mandate has not been utilized and the maximum number of Class Z Ordinary Shares allowed to be allotted and issued under the General Mandate was 83,666,173.

Upon exercise in full of the conversion rights attached to the Notes and the Optional Notes at the initial Conversion Price of approximately HK$185.63 per Class Z Ordinary Share, a total of approximately 29,100,561 Conversion Shares and Optional Notes Conversion Shares, representing 7.0% of the number of Shares issued and outstanding as of May 20, 2025, will be issued. The General Mandate is therefore sufficient for the allotment and issue of the Conversion Shares and the Optional Notes Conversion Shares. As such, the issue of the Notes and the Optional Notes, including the Conversion Shares and the Optional Notes Conversion Shares thereunder, are not subject to Shareholders’ approval at a general meeting.

Hong Kong, May 23, 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.

4

Exhibit 99.2

Bilibili Inc. Announces Completion of US$690 Million Convertible Senior Notes and Offering of Class Z Ordinary Shares in Connection with Hedging Transactions of Certain Convertible Notes Investors and Terms of Concurrent Repurchase

SHANGHAI, May 23, 2025 — Bilibili Inc. (“Bilibili” or the “Company”) (Nasdaq: BILI and HKEX: 9626), an iconic brand and a leading video community for young generations in China, today announced (i) the completion of its offering (the “Notes Offering”) of US$690 million in aggregate principal amount of convertible senior notes due 2030 (the “Notes”), including the initial purchasers’ full exercise of option to purchase an additional US$90 million in aggregate principal amount of the Notes, and (ii) the completion of the previously announced concurrent offering of its 10,281,240 Class Z ordinary shares that have been borrowed from non-affiliate third parties and offered in a separate underwritten offering.

Notes Offering

The Notes have been offered to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”).

The Notes constitute senior, unsecured obligations of the Company. The Notes will mature on June 1, 2030, unless repurchased, redeemed or converted in accordance with their terms prior to such date. Holders may convert their Notes at their option at any time prior to the close of business on the seventh scheduled trading day immediately preceding the maturity date. The initial conversion rate of the Notes is 42.1747 Class Z ordinary shares per US$1,000 principal amount of Notes (which is equivalent to an initial conversion price of approximately HK$185.63 per Class Z ordinary share and represents a conversion premium of approximately 27.1% above the closing price HK$146.00 per Class Z ordinary share of the Company on the Hong Kong Stock Exchange on May 21, 2025) and a premium of approximately 32.5% to the clearing share price of the Concurrent Delta Offering of HK$140.10 per Class Z ordinary share of the Company, and is subject to adjustment upon the occurrence of certain events. Upon conversion, subject to certain procedures and conditions set forth in the terms of the Notes, the Company will cause to be delivered the Company’s Class Z ordinary shares, par value US$0.0001 per share. Holders may elect to receive the Company’s American depositary shares (“ADS”), each representing one Class Z ordinary share, in lieu of Class Z ordinary shares deliverable upon conversion.

The Notes will bear interest at a rate of 0.625% per year, payable semiannually in arrears on June 1 and December 1 of each year, beginning on December 1, 2025.

The Company plans to use the net proceeds from the Notes Offering to enhance its content ecosystem to facilitate user growth, facilitate IP asset creation, and unleash its inherent potential. The Company also plans to use the net proceeds from the Notes Offering to improve its overall monetization efficiency, fund the Concurrent Repurchase (as defined below), fund future repurchases (from time to time) under its share repurchase program, and for other general corporate purposes.

The Notes, the Class Z ordinary shares deliverable upon conversion of the Notes or the ADSs deliverable in lieu thereof have not been registered under the Securities Act, or any state securities laws. They may not be offered or sold within the United States or to U.S. persons, except in reliance on the exemption from registration under the Securities Act.

Concurrent Delta Offering

The Company also completed the concurrent offering of its 10,281,240 Class Z ordinary shares that have been borrowed from non-affiliate third parties and offered in a separate underwritten offering by Goldman Sachs (Asia) L.L.C. and Morgan Stanley Asia Limited (the “Underwriters” and the “Concurrent Delta Offering”, respectively), each acting severally on behalf of itself and/or its respective affiliates, at HK$140.10 per Class Z ordinary share. The Underwriters used the resulting short position to facilitate hedging transactions by certain investors subscribing for the Notes, who employ a convertible arbitrage strategy (the “Convertible Arbitrage Investors”). The Company has been advised that each Underwriter has concurrently entered into off-market privately negotiated derivative transactions relating to the Class Z ordinary shares, which enabled Convertible Arbitrage Investors to establish their initial short positions in the Class Z ordinary shares to hedge market risk in the Notes. The number of Class Z ordinary shares subject to the Concurrent Delta Offering generally corresponds to such initial short positions of the Convertible Arbitrage Investors. No new Class Z ordinary shares have been issued in the Concurrent Delta Offering.

The Company has filed an automatic shelf registration statement on Form F-3 (including a prospectus) with the SEC. The Concurrent Delta Offering has been made only by means of a prospectus supplement and the accompanying prospectus. You may obtain these documents by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, a copy of the prospectus supplement and the accompanying prospectus may be obtained from Goldman Sachs & Co. LLC, 200 West Street, New York, New York 10282, Attention: Prospectus Department, Email: Prospectus-ny@ny.email.gs.com, Telephone: 1 (866) 471-2526; or Morgan Stanley Asia Limited, c/o Morgan Stanley & Co. LLC, 180 Varick Street, New York, New York 10014, Attention: Prospectus Department, Email: prospectus@morganstanley.com, Telephone: 1 (866) 718-1649.

The Company has subscribed for and been allocated 5,588,140 of its Class Z ordinary shares offered in the Concurrent Delta Offering for an aggregate amount of approximately HK$782.9 million at the offering price (the “Concurrent Repurchase”). The Concurrent Repurchase is being made pursuant to the Company’s existing share repurchase program. The Company used part of the proceeds from the Notes Offering for the Concurrent Repurchase. The Concurrent Repurchase enables investors to establish some of their initial short positions in the Class Z ordinary shares to hedge market risk in the Notes and reflects the Company’s confidence in its long-term strategy and growth. The repurchased shares will be cancelled.

This press release shall not constitute an offer to sell or a solicitation of an offer to purchase any of these securities, nor shall there be a sale of the securities in any state or jurisdiction in which such an offer, solicitation, or sale would be unlawful.

2

Safe Harbor Statement

This announcement contains forward-looking statements. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as “will,” “expects,” “anticipates,” “aims,” “future,” “intends,” “plans,” “believes,” “estimates,” “confident,” “potential,” “continue,” or other similar expressions. Bilibili may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission, in its interim and annual reports to shareholders, in announcements, circulars or other publications made on the website of The Stock Exchange of Hong Kong Limited (the “Hong Kong Stock Exchange”), in press releases and other written materials and in oral statements made by its officers, directors or employees to third parties. Statements that are not historical facts, including but not limited to statements about Bilibili’s beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following: results of operations, financial condition, and stock price; Bilibili’s strategies; Bilibili’s future business development, financial condition and results of operations; Bilibili’s ability to retain and increase the number of users, members and advertising customers, provide quality content, products and services, and expand its product and service offerings; competition in the online entertainment industry; Bilibili’s ability to maintain its culture and brand image within its addressable user communities; Bilibili’s ability to manage its costs and expenses; PRC governmental policies and regulations relating to the online entertainment industry, general economic and business conditions globally and in China and assumptions underlying or related to any of the foregoing. Further information regarding these and other risks is included in the Company’s filings with the Securities and Exchange Commission and the Hong Kong Stock Exchange. All information provided in this announcement and in the attachments is as of the date of the announcement, and the Company undertakes no duty to update such information, except as required under applicable law.

About Bilibili Inc.

Bilibili is an iconic brand and a leading video community with a mission to enrich the everyday lives of young generations in China. Bilibili offers a wide array of video-based content with All the Videos You Like as its value proposition. Bilibili builds its community around aspiring users, high-quality content, talented content creators and the strong emotional bonds among them. Bilibili pioneered the “bullet chatting” feature, a live comment function that has transformed our users’ viewing experience by displaying the thoughts and feelings of audience members viewing the same video. The Company has now become the welcoming home of diverse interests among young generations in China and the frontier for promoting Chinese culture across the world.

For more information, please visit: http://ir.bilibili.com.

3

For investor and media inquiries, please contact:

In China:

Bilibili Inc.

Juliet Yang

Tel: -86-21-2509-9255 Ext. 8523

Email: ir@bilibili.com

Piacente Financial Communications

Helen Wu

Tel: -86-10-6508-0677

Email: bilibili@tpg-ir.com

In the United States:

Piacente Financial Communications

Brandi Piacente

Tel: -1-212-481-2050

Email: bilibili@tpg-ir.com

4

Exhibit 99.3

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.

This announcement is for information purposes only and is not intended to and does not constitute, or form part of, any offer to purchase or subscribe for or an invitation to purchase or subscribe for any securities of the Company, in any jurisdiction, whether in Hong Kong or the United States or elsewhere, nor shall there be any sale, issuance or transfer of securities of the Company in any jurisdiction in contravention of applicable law. This announcement does not constitute a prospectus, offering circular, notice, circular, brochure or advertisement offering to sell any securities of the Company to the public in Hong Kong or any other jurisdiction, nor is it an invitation to the public to make offers to subscribe for or purchase any securities of the Company, nor is it calculated to invite offers by the public to subscribe for or purchase any securities of the Company. This announcement must not be regarded as an inducement to subscribe for or purchase any securities of the Company, and no such inducement is intended. Neither the Company nor its sales agents nor any of their respective affiliates and advisers is offering, or is soliciting offers to buy, any securities of the Company in Hong Kong or any other jurisdiction through the publication of this announcement.

The convertible senior notes have not been and will not be registered in Hong Kong or under the United States Securities Act 1933, and may not be offered or sold in Hong Kong or the United States absent registration or an exemption from registration. Any public offering of convertible senior notes to be made in Hong Kong or the United States will be made by means of a prospectus that may be obtained from the Company and will contain detailed information about the Company and management, as well as financial statements. The Company does not intend to register any of the convertible senior notes in Hong Kong or the United States.

This announcement is not for release, publication or distribution, in whole or in part, in, into or from any jurisdiction where to do so would constitute a violation of the applicable laws or regulations of such jurisdiction.

Bilibili Inc.

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

(Stock Code: 9626)

COMPLETION OF US$690 MILLION CONVERTIBLE SENIOR NOTES AND THE CONCURRENT DELTA OFFERING

Reference is made to the announcements of Bilibili Inc. (“Bilibili” or the “Company”) dated May 21, 2025 and May 23, 2025 (the “Announcements”) in relation to (i) the offering of US$600 million in aggregate principal amount of convertible senior notes due 2030 (the “Notes Offering”), (ii) the grant of an option to the initial purchasers in the Notes Offering to purchase up to an additional US$90 million principal amount of such notes, exercisable for settlement within a 30-day period beginning on, and including, the date on which such notes are first issued, (iii) the Concurrent Delta Offering, and (iv) the Concurrent Repurchase. Unless otherwise defined, defined terms used in this announcement shall have the same meaning as those in the Announcements.

1

The Company today announced (i) the completion of its offering of US$690 million in aggregate principal amount of convertible senior notes due 2030, including the Initial Purchasers’ full exercise of option to purchase an additional US$90 million in aggregate principal amount of such notes, and (ii) the completion of the Concurrent Delta Offering, being a concurrent offering of its 10,281,240 Class Z ordinary shares that have been borrowed from non-affiliate third parties and offered in a separate underwritten offering.

Hong Kong, May 23, 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.

2