Post-Effective Amendment to Registration Statement (Form POS AM)

As filed with the Securities and Exchange Commission on March 6, 2026

Registration No. 333-262250

Registration No. 333-263745

Registration No. 333-270151

Registration No. 333-289015

Registration No. 333-279118

Registration No. 333-257989

Registration No. 333-251657

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Post-Effective Amendment No. 1 to

Form S-3 Registration Statement File No. 333-262250

Form S-3 Registration Statement File No. 333-263745

Form S-3 Registration Statement File No. 333-270151

Form S-3 Registration Statement File No. 333-289015

Post-Effective Amendment No. 3 to

Form S-3 Registration Statement File No. 333-279118

Post-Effective Amendment No. 2 to

Form S-1 on Form S-3 Registration Statement File No. 333-257989

Post-Effective Amendment No. 4 to

Form S-1 on Form S-3 Registration Statement File No. 333-251657

Under

The Securities Act of 1933

Luminar Technologies, Inc.

(Exact name of the registrant as specified in its charter)

151 Gibraltar Court

Sunnyvale, California 94089

(800) 532-2417

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

Paul Ricci

151 Gibraltar Court

Sunnyvale, California 94089

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

Copies to:

Weil, Gotshal & Manges LLP

767 5th Ave

New York, NY 10153

(212) 310-8000

Approximate date of commencement of proposed sale to the public: This post-effective amendment is being filed to deregister the unsold securities previously registered under these Registration Statements.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box: ☐

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, other than securities offered only in connection with dividend or interest reinvestment plans, 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 registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

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.

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 7(a)(2)(B) of Securities Act. ☐

DEREGISTRATION OF UNSOLD SECURITIES

These Post-Effective Amendments (these "Post-Effective Amendments"), filed by Luminar Technologies, Inc. a Delaware corporation (the "Registrant"), relate to the following Registration Statements on Form S-3 previously filed by the Registrant (collectively, the "Registration Statements") with the Securities and Exchange Commission (the "SEC"):

* The number of shares of Class A common stock originally registered have not been adjusted to reflect the one-for-fifteen (1-for-15) reverse stock split that became effective on November 20, 2024.

In connection with filing for voluntary petitions for relief under chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the District of Delaware on December 15, 2025, the Registrant is terminating all offerings of its securities pursuant to existing registration statements under the Securities Act of 1933, including the Registration Statements.

Pursuant to the undertaking made by the Registrant in the Registration Statements to remove from registration by means of a post-effective amendment any of the securities that had been registered for issuance that remain unsold at the termination of the offering, the Registrant is filing these Post-Effective Amendments to terminate the effectiveness of each Registration Statement and to deregister, as of the effectiveness of these Post-Effective Amendments, any and all shares of Class A common stock or other securities registered thereunder that remain unsold as of the effectiveness date. As a result of this deregistration and upon the effectiveness of these Post-Effective Amendments, no securities will remain registered pursuant to the Registration Statements.

SIGNATURE

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused these Post-Effective Amendments to the Registration Statements to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Sunnyvale, State of California, on March 6, 2026.

Note: No other person is required to sign these Post-Effective Amendment in reliance upon Rule 478 under the Securities Act of 1933.