As filed with the Securities and Exchange Commission on June 18, 2025

Registration No. 333-287867

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Amendment No. 1 to

FORM S-1

REGISTRATION STATEMENT

Under

The Securities Act of 1933

NUBURU, INC.

(Exact name of Registrant as specified in its charter)

Delaware	3690	85-1288435
(State or other jurisdiction of incorporation or organization)	(Primary Standard Industrial Classification Code Number)	(I.R.S. Employer Identification Number)

7442 S Tucson Way, Suite 130

Centennial, CO 80112

Telephone: (720) 767-1400

(Address, including zip code, and telephone number, including area code, of Registrant’s principal executive offices)

Alessandro Zamboni

Executive Chairman

7442 S Tucson Way, Suite 130

Centennial, CO 80112

Telephone: (720) 767-1400

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Amy Bowler

Holland & Hart LLP

555 17th Street, Suite 3200

Denver, CO 80202-3921

Tel: (303) 295-8000

Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this Registration Statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		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 to Section 7(a)(2)(B) of the Securities Act. ☐

The Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

EXPLANATORY NOTE

This Amendment No. 1 to the Registration Statement on Form S-1 of Nuburu, Inc. (the “Company”) (File No. 333-287867) is being filed as an exhibit-only filing solely to file the opinion and consent of Holland & Hart LLP as Exhibit 5.1. Accordingly, this Amendment consists only of the facing page, this explanatory note, Item 16 of Part II of the Registration Statement, the signature pages to the Registration Statement, and the referenced exhibit. The prospectus and the balance of Part II of the Registration Statement are unchanged hereby and have been omitted.

Item 16. Exhibits and Financial Statement Schedules

(a) Exhibits

		Incorporated by Reference
Exhibit No.	Description	Form	File No.	Exhibit No.	Filing Date
2.1†	Business Combination Agreement, dated as of August 5, 2022, by and among Tailwind Acquisition Corp., Compass Merger Sub, Inc. and Nuburu, Inc.	8-K	001-39489	2.1	August 8, 2022
3.1	Amended and Restated Bylaws of the Company.	8-K	001-39489	3.2	September 9, 2020
3.2	Amended and Restated Certificate of Incorporation of the Company.	8-K	001-39489	3.1	February 6, 2023
3.3	Certificate of Designations of the Company.	8-K	001-39489	3.3	February 6, 2023
3.4	Certificate of Amendment to Amended and Restated Certificate of Incorporation of the Company.	8-K	001-39489	3.1	June 13, 2024
3.5	Amendment to the Amended and Restated By Laws of the Company, dated November 12, 2024.	8-K	001-39489	3.1	November 12, 2024
4.1	Specimen Common Stock Certificate .	8-K	001-39489	4.1	February 6, 2023
4.2	Specimen Preferred Stock Certificate .	8-K	001-39489	4.2	February 6, 2023
4.3	Specimen Warrant Certificate.	S-1	333-248113	4.3	August 26, 2020
4.4	Warrant Agreement, dated as of September 9, 2020, by and between the Company and Continental Stock Transfer & Trust Company.	8-K	001-39489	4.1	September 9, 2020
4.5	Description of Registrant’s Securities.	10-K	001-39489	4.5	April 15, 2024
5.1*	Opinion of Holland & Hart LLP.
10.1	Investment Management Trust Agreement, dated as of September 9, 2020, by and between the Company and Continental Stock Transfer & Trust Company.	8-K	001-39489	10.2	September 9, 2020
10.2	Third Amendment to Amended and Restated Registration Rights Lock-up Agreement, dated January 31, 2023, by and among the Company and the Holders (defined therein).	8-K	001-39489	10.14	February 6, 2023
10.3	Fourth Amendment to Amended and Restated Registration Rights Lock-up Agreement, dated March 10, 2023, by and among the Company and the Holders (defined therein).	8-K	001-39489	10.1	March 10, 2023
10.4	Preferred Stock Sale Option Agreement, dated August 5, 2022, by and among the Company and the parties listed on Schedule A thereto.	8-K	001-39489	10.4	August 8, 2022

10.5	Amendment to Preferred Stock Sale Option Agreement, dated November 22, 2022, by and among the Company and the Holders (as defined therein).	8-K	001-39489	10.3	November 22, 2022
10.6	Second Amendment to Preferred Stock Sale Option Agreement, dated November 28, 2022 by and among the Company and the Holders (as defined therein).	8-K	001-39489	10.1	November 29, 2022
10.7	Third Amendment to Preferred Stock Sale Option Agreement, dated November 28, 2022 by and among the Company and the Holders (as defined therein).	8-K	001-39489	10.2	March 10, 2023
10.8#	Nuburu, Inc. 2022 Equity Incentive Plan.	8-K	001-39489	10.20	February 6, 2023
10.9#	Nuburu, Inc. 2022 Employee Stock Purchase Plan and forms of agreement thereunder.	8-K	001-39489	10.21	February 6, 2023
10.10#	Nuburu, Inc. Executive Incentive Compensation Plan.	8-K	001-39489	10.22	February 6, 2023
10.11#†	Amended and Restated Employment Agreement, effective December 3, 2022, by and between Mark Zediker and Legacy Nuburu.	S-4/A	333-267403	10.18	November 29, 2022
10.12#	Employment Agreement, effective December 2, 2022, by and between Brian Knaley and Legacy Nuburu.	S-4/A	333-267403	10.19	November 29, 2022
10.13#†	Amended and Restated Employment Agreement, effective December 2, 2022, by and between Brian Faircloth and Legacy Nuburu.	S-4/A	333-267403	10.20	November 29, 2022
10.14#	Form of Director Letter Agreement.	S-4/A	333-267403	10.22	November 29, 2022
10.15#	Form of Nuburu, Inc. Indemnification Agreement.	8-K	001-39489	10.27	February 6, 2023
10.16	Form of Convertible Promissory Note.	8-K	001-39489	4.1	June 13, 2023
10.17	Form of Warrant to Purchase Shares of Common Stock.	8-K	001-39489	4.2	June 13, 2023
10.18	Note and Warrant Purchase Agreement dated June 12, 2023.	8-K	001-39489	10.1	June 13, 2023
10.19	Registration Rights and Lock-up Agreement.	8-K	001-39489	10.2	June 13, 2023
10.20	Confidential Separation and Release Agreement, dated November 1, 2023, by and between Nuburu, Inc. and Dr. Mark Zediker.	10-Q	001-39489	10.4	November 9, 2023
10.21	Note and Warrant Purchase Agreement, dated November 13, 2023, by and between Nuburu, Inc. and the lenders party thereto.	10-K	001-39489	10.39	April 15, 2024
10.22	Form of Promissory Note.	10-K	001-39489	10.40	April 15, 2024

10.23	Form of Warrant to Purchase Shares of Common Stock.	10-K	001-39489	10.41	April 15, 2024
10.24	Registration Rights Agreement, dated November 13, 2023, by and between Nuburu, Inc.	10-K	001-39489	10.42	April 15, 2024
10.25	Intercreditor and Subordination Agreement, dated November 13, 2023, by and between Nuburu, Inc. and the parties thereto.	10-K	001-39489	10.43	April 15, 2024
10.26	Form of Warrant to Purchase Shares of Common Stock	10-K	001-39489	10.46	April 15, 2024
10.27	Board of Directors Compensation Policy	10-K	001-39489	10.47	April 15, 2024
10.28	Amendment to Employment Agreement, effective November 1, 2023, by and between Nuburu, Inc. and Brian Knaley.	10-K/A	001-39489	10.48	April 29, 2024
10.29	Amendment to Employment Agreement, effective January 1, 2024, by and between Nuburu, Inc. and Brian Faircloth.	10-K/A	001-39489	10.49	April 29, 2024
10.30	Securities Purchase Agreement, dated August 6, 2024, by and between Nuburu, Inc. and Esousa Group Holdings LLC.	8-K	001-39489	10.1	August 12, 2024
10.31	Exchange Agreement, dated August 6, 2024, by and between Nuburu, Inc. and Esousa Group Holdings LLC.	8-K	001-39489	10.2	August 12,2024
10.32	Securities Purchase Agreement, dated August 19, 2024, by and between Nuburu, Inc. and Esousa Group Holdings LLC	8-K	001-39489	10.1	August 23, 2024
10.33	Exchange Agreement, dated August 19, 2024, by and between Nuburu, Inc. and Esousa Group Holdings LLC	8-K	001-39489	10.2	August 23, 2024
10.34	Common Stock Purchase Agreement, dated October 1, 2024, by and between Nuburu, Inc. and Liqueous LP	8-K	001-39489	10.1	October 7, 2024
10.35	Registration Rights Agreement, dated October 1, 2024, by and between Nuburu, Inc. and Liqueous LP	8-K	001-39489	10.2	October 7, 2024
10.36	Master Transaction Summary agreement, dated October 1, 2024, between Nuburu, Inc. and Liqueous LP	10-Q	001-39489	10.5	November 14, 2024
10.37	Common Stock Purchase Agreement, dated October 1, 2024, between Nuburu, Inc. and Liqueous LP	10-Q	001-39489	10.6	November 14, 2024
10.38	Securities Purchase Agreement, dated October 1, 2024, between Nuburu, Inc. and Liqueous LP	10-Q	001-39489	10.7	November 14, 2024

10.39	Securities Purchase Agreement, dated October 1, 2024, between Nuburu, Inc. and Liqueous LP	10-Q	001-39489	10.8	November 14, 2024
10.40	Registration Rights Agreement, dated October 1, 2024, between Nuburu, Inc. and Liqueous LP	10-Q	001-39489	10.9	November 14, 2024
10.41	Proposal Letter dated January 13, 2025,among S.F.E. Equity Investments SARL, The AvantGarde Group S.p.A., Alessandro Zamboni and the Company	10-Q	001-39489	10.1	May 20, 2025
10.42	Comprehensive Settlement Agreement, Mutual Release of Liability and Indemnification dated January 14, 2025, between the Company and Liqueous LP	10-Q	001-39489	10.2	May 20, 2025
10.43	Amendment to Comprehensive Settlement Agreement, Mutual Release of Liability and Indemnification dated February 14, 2025 between the Company and Liqueous, LP	10-Q	001-39489	10.3	May 20, 2025
10.44	Second Amendment to Comprehensive Settlement Agreement, Mutual Release of Liability and Indemnification, dated February 17, 2025, between the Company and Liqueous LP	10-Q	001-39489	10.4	May 20, 2025
10.45	Binding and Irrevocable Commitment Letter, dated February 14, 2025, among the Company, Trumar Capital LLC and Ambrogio D'Arrezzo	10-Q	001-39489	10.5	May 20, 2025
10.46	Subordinated Convertible Note, dated March 3, 2025, between the Company and Indigo Capital LP	10-Q	001-39489	10.6	May 20, 2025
10.47	Subordinated Convertible Exchange Note, dated March 3, 2025, between the Company and Indigo Capital LP	10-Q	001-39489	10.7	May 20, 2025
10.48	On Demand Facility Agreement, dated March 18, 2025, between the Company and Supply@ME Capital plc	10-Q	001-39489	10.8	May 20, 2025
10.49	Standby Equity Purchase Agreement, dated May 30, 2025, between the Company and YA II PN, LTD.	DEF 14A	001-39489	Appendix F	June 10, 2025
19.1	Insider Trading Policy	10-K	001-39489	19.1	April 15, 2025
21.1	List of Subsidiaries of Nuburu, Inc.	8-K	001-39489	21.1	February 6, 2023
23.1**	Consent of WithumSmith+Brown, PC, Independent Registered Public Accounting Firm for the Company.
23.2*	Consent of Holland & Hart LLP (included in Exhibit 5.1).

24.1	Powers of Attorney (included on the signature page of the initial filing of this registration statement).
97	Nuburu, Inc. Clawback Policy	10-K	001-39489	97	April 15, 2025
107**	Calculation of Filing Fee Table.

† Certain of the exhibits and schedules to these exhibits have been omitted in accordance with Regulation S-K Item 601(a)(5). The registrant agrees to furnish a copy of all omitted exhibits and schedules to the SEC upon its request.

# Indicates management contract or compensatory plan or arrangement.

* Filed herewith.

** Previously filed.

Signatures

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Centennial, State of Colorado, on June 18, 2025.

NUBURU, INC.
By:	/s/ Alessandro Zamboni
Name:	Alessandro Zamboni
Title:	Executive Chairman

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated:

Name	Position	Date
/s/ Alessandro Zamboni	Executive Chairman	June 18, 2025
Alessandro Zamboni	(Principal Executive Officer and Principal Financial and Accounting Officer)
*	Director	June 18, 2025
Matteo Ricchebuono
*	Director	June 18, 2025
Shawn Taylor
*	Director	June 18, 2025
Dario Barisoni