[424B3] Bolt Projects Holdings, Inc. Prospectus Filed Pursuant to Rule 424(b)(3)
Bolt Projects Holdings, Inc. filed Prospectus Supplement No. 2 under Rule 424(b)(3), updating its S-1 prospectus (No. 333-290557) with information from a Form 8-K.
On October 17, 2025, the board approved and adopted Amended and Restated Bylaws, effective the same day. The supplement directs readers to the full bylaws text attached as Exhibit 3.1 to the 8-K and to keep this supplement with the prospectus.
Bolt Projects Holdings, Inc. ha depositato il Supplemento al Prospetto No. 2 ai sensi della Rule 424(b)(3), aggiornando il suo prospetto S-1 (No. 333-290557) con informazioni tratte da un modulo 8-K.
Il 17 ottobre 2025 il consiglio di amministrazione ha approvato e adottato i suoi Statuti Modificati e Riformulati, entrati in vigore nello stesso giorno. Il supplemento invita i lettori a consultare il testo completo dei statuti allegato come Allegato 3.1 al 8-K e a conservare questo supplemento insieme al prospetto.
Bolt Projects Holdings, Inc. presentó el Suplemento de Prospecto No. 2 conforme a la Regla 424(b)(3), actualizando su prospecto S-1 (No. 333-290557) con información de un Formulario 8-K.
El 17 de octubre de 2025, la junta aprobó y adoptó los Estatutos Enmendados y Reformulados, que entran en vigor ese mismo día. El suplemento dirige a los lectores al texto completo de los estatutos adjunto como Exhibit 3.1 al 8-K y a conservar este suplemento junto al prospecto.
Bolt Projects Holdings, Inc.는 Rule 424(b)(3)에 따라 Prospectus Supplement No. 2를 제출하여 S-1 프로스펙터스(No. 333-290557)를 Form 8-K의 정보로 업데이트했습니다.
2025년 10월 17일 이사회는 수정 및 재작성된 내규를 승인하고 같은 날 발효되었습니다. 이 보충서는 독자들에게 8-K의 첨부 Exhibit 3.1에 있는 전체 내규 텍스트를 참조하도록 안내하며, 이 보충서를 프로스펙터스와 함께 보관하도록 되어 있습니다.
Bolt Projects Holdings, Inc. a déposé le Prospectus Supplémentaire n° 2 conformément à la règle 424(b)(3), mettant à jour son prospectus S-1 (No. 333-290557) avec des informations tirées d'un Form 8-K.
Le 17 octobre 2025, le conseil d'administration a approuvé et adopté les Statuts Amendus et Reformulés, en vigueur le jour même. Le supplément invite les lecteurs à se reporter au texte intégral des statuts joint en tant qu'Exhibit 3.1 au 8-K et à conserver ce supplément avec le prospectus.
Bolt Projects Holdings, Inc. hat den Prospectus Supplement Nr. 2 gemäß Rule 424(b)(3) eingereicht und seinen S-1-Prospekt (Nr. 333-290557) mit Informationen aus einem Form 8-K aktualisiert.
Am 17. Oktober 2025 hat der Vorstand die geänderten und neu gefassten Satzungen genehmigt und in Kraft gesetzt. Der Supplement verweist darauf, den vollständigen Wortlaut der Satzungen, der als Exhibit 3.1 zum 8-K beigefügt ist, zu lesen und diesen Supplement zusammen mit dem Prospekt aufzubewahren.
Bolt Projects Holdings, Inc. قد قدمت الملحق التمهيدي رقم 2 وفق القاعدة 424(b)(3)، مُحدِّثة Prospectus S-1 (الرقم 333-290557) بمعلومات من Form 8-K.
في 17 أكتوبر 2025، وافق المجلس واعتمد لوائح معدلة ومعاد صياغتها، وسارية المفعول في نفس اليوم. يشير الملحق إلى النص الكامل للوائح المرفقة كـ Exhibit 3.1 إلى 8-K، وينبغي الاحتفاظ بهذا الملحق مع البروسبكتس.
Bolt Projects Holdings, Inc. 根据规则424(b)(3)提交了招股说明书补充文件No.2，使用Form 8-K中的信息更新了其S-1招股说明书（No. 333-290557）。
2025年10月17日，董事会批准并通过了经修订并重新阐述的章程，自同日生效。该补充文告提示读者查阅作为8-K附带的Exhibit 3.1的完整章程文本，并将本补充文与招股说明书一起保留。
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Bolt Projects Holdings, Inc. ha depositato il Supplemento al Prospetto No. 2 ai sensi della Rule 424(b)(3), aggiornando il suo prospetto S-1 (No. 333-290557) con informazioni tratte da un modulo 8-K.
Il 17 ottobre 2025 il consiglio di amministrazione ha approvato e adottato i suoi Statuti Modificati e Riformulati, entrati in vigore nello stesso giorno. Il supplemento invita i lettori a consultare il testo completo dei statuti allegato come Allegato 3.1 al 8-K e a conservare questo supplemento insieme al prospetto.
Bolt Projects Holdings, Inc. presentó el Suplemento de Prospecto No. 2 conforme a la Regla 424(b)(3), actualizando su prospecto S-1 (No. 333-290557) con información de un Formulario 8-K.
El 17 de octubre de 2025, la junta aprobó y adoptó los Estatutos Enmendados y Reformulados, que entran en vigor ese mismo día. El suplemento dirige a los lectores al texto completo de los estatutos adjunto como Exhibit 3.1 al 8-K y a conservar este suplemento junto al prospecto.
Bolt Projects Holdings, Inc.는 Rule 424(b)(3)에 따라 Prospectus Supplement No. 2를 제출하여 S-1 프로스펙터스(No. 333-290557)를 Form 8-K의 정보로 업데이트했습니다.
2025년 10월 17일 이사회는 수정 및 재작성된 내규를 승인하고 같은 날 발효되었습니다. 이 보충서는 독자들에게 8-K의 첨부 Exhibit 3.1에 있는 전체 내규 텍스트를 참조하도록 안내하며, 이 보충서를 프로스펙터스와 함께 보관하도록 되어 있습니다.
Bolt Projects Holdings, Inc. a déposé le Prospectus Supplémentaire n° 2 conformément à la règle 424(b)(3), mettant à jour son prospectus S-1 (No. 333-290557) avec des informations tirées d'un Form 8-K.
Le 17 octobre 2025, le conseil d'administration a approuvé et adopté les Statuts Amendus et Reformulés, en vigueur le jour même. Le supplément invite les lecteurs à se reporter au texte intégral des statuts joint en tant qu'Exhibit 3.1 au 8-K et à conserver ce supplément avec le prospectus.
Bolt Projects Holdings, Inc. hat den Prospectus Supplement Nr. 2 gemäß Rule 424(b)(3) eingereicht und seinen S-1-Prospekt (Nr. 333-290557) mit Informationen aus einem Form 8-K aktualisiert.
Am 17. Oktober 2025 hat der Vorstand die geänderten und neu gefassten Satzungen genehmigt und in Kraft gesetzt. Der Supplement verweist darauf, den vollständigen Wortlaut der Satzungen, der als Exhibit 3.1 zum 8-K beigefügt ist, zu lesen und diesen Supplement zusammen mit dem Prospekt aufzubewahren.
Filed pursuant to Rule 424(b)(3)
Registration Statement No. 333-290557
Prospectus Supplement No. 2
(To Prospectus dated September 30, 2025)
BOLT PROJECTS HOLDINGS, INC.
This prospectus supplement updates, amends and supplements the prospectus dated September 30, 2025 (the “Prospectus”), which forms a part of our Registration Statement on Form S-1 (Registration No. 333-290557). Capitalized terms used in this prospectus supplement and not otherwise defined herein have the meanings specified in the Prospectus.
This prospectus supplement is being filed to update, amend and supplement the information included in the Prospectus with the information contained in our Current Report on Form 8-K, filed with the Securities and Exchange Commission (“SEC”) on October 17, 2025, which is set forth below.
This prospectus supplement is not complete without the Prospectus. This prospectus supplement should be read in conjunction with the Prospectus, which is to be delivered with this prospectus supplement, and is qualified by reference thereto, except to the extent that the information in this prospectus supplement updates or supersedes the information contained in the Prospectus. Please keep this prospectus supplement with your Prospectus for future reference.
INVESTING IN OUR SECURITIES INVOLVES CERTAIN RISKS. SEE “RISK FACTORS” BEGINNING ON PAGE 7 OF THE PROSPECTUS.
Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.
The date of this prospectus supplement is October 17, 2025
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported): October 17, 2025
Bolt Projects Holdings, Inc.
(Exact name of registrant as specified in its charter)
| Delaware | 001-40223 | 86-1256660 | ||
| (State or other jurisdiction of incorporation) | (Commission File Number) | (I.R.S. Employer Identification No.) |
| 2261 Market Street, Suite 5447 San Francisco, CA |
94114 | |
| (Address of principal executive offices) | (Zip Code) |
(415) 325-5912
(Registrants telephone number, including area code)
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
Securities registered pursuant to Section 12(b) of the Act:
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered | ||
| Common stock, par value $0.0001 per share | BSLK | The Nasdaq Stock Market LLC | ||
| Warrants, each 20 whole warrants exercisable for one share of Common stock at an exercise price of $230.00 | BSLKW | The Nasdaq Stock Market LLC |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (Sec.230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Sec.240.12b-2 of this chapter).
Emerging growth company ☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
On October 17, 2025, the Board of Directors of Bolt Projects Holdings, Inc. (the Company) approved and adopted amendments to the Companys Amended and Restated Bylaws (the Amended and Restated Bylaws), which became effective the same day. Among other things, the amendments contained in the Amended and Restated Bylaws:
| ● | reduce the quorum needed for stockholder meetings to one-third (33.33%) of the Companys voting power of the issued and outstanding shares of capital stock of the Company entitled to vote thereat, present in person or represented by proxy; |
| ● | address the universal proxy rules adopted by the U.S. Securities and Exchange Commission, by clarifying that no person may solicit proxies in support of a director nominee other than the Boards nominees unless such person has complied with Rule 14a-19 under the Securities Exchange Act of 1934, as amended, including applicable notice and solicitation requirements; |
| ● | establish procedural mechanics and disclosure requirements in connection with stockholder nominations of directors and submissions of proposals regarding other business at stockholder meetings, including, without limitation: requiring certain background information and disclosures regarding proposing stockholders, proposed nominees and business, and other persons related to a stockholders solicitation of proxies; regarding the proposed nominees, including a representation that such candidate intends to serve the entire term, if elected; and prohibiting a stockholder from nominating a greater number of director candidates than are subject to election by stockholders at the applicable meeting; |
| ● | require that a stockholder directly or indirectly soliciting proxies from other stockholders use a proxy card color other than white, which will be reserved for exclusive use by the Board; |
| ● | update those who may preside at meetings of stockholders and the scope of such persons rights and authority at such meetings; and |
| ● | update how vacancies on the Board of Directors may be filled. |
The Amended and Restated Bylaws also incorporate certain modernizing, clarifying, conforming and additional changes.
The foregoing description of the Amended and Restated Bylaws does not purport to be complete and is qualified in its entirety by reference to the full text of the Amended and Restated Bylaws, a copy of which is attached hereto as Exhibit 3.1 and is incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
| Exhibit No. | Description | |
| 3.1 | Amended and Restated Bylaws, dated as of October 17, 2025. | |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |
1
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| BOLT PROJECTS HOLDINGS, INC. | ||
| Date: October 17, 2025 | By: | /s/ Daniel Widmaier |
| Name: | Daniel Widmaier | |
| Title: | Chief Executive Officer | |
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FAQ
What did Bolt Projects (BSLK) file?
What corporate action is included in the update for BSLK?
Where can investors find the full bylaw changes for BSLK?
Does this supplement replace the prior prospectus for BSLK?
Which SEC form did BSLK use to disclose the bylaw amendments?
What securities of BSLK are listed?
