Company: FTCI
Filing Date: 2025-06-20
Form Type: S-8
Source: 0001193125-25-143249
Chunk: 1

Company: FTC Solar, Inc.
Filing Date: 2025-06-20
Form: S-8
Chunk 1
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 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 the Securities Act. ☐

EXPLANATORY NOTE This Registration Statement on Form S-8(this “ Registration Statement”) is filed by FTC Solar, Inc. (the “ Company”) to register an additional 514,152 shares (the “ Evergreen Shares”) of the Company’s common stock, par value $0.0001 per share (the “ Common Stock”), issuable under the FTC Solar, Inc. 2021 Stock Incentive Plan (the “ 2021 Stock Incentive Plan”). The shares of Common Stock being registered pursuant to this Registration Statement are the same class as, and in addition to, other securities for which Registration Statements on Forms S-8were filed with the Securities and Exchange Commission (the “ SEC”) on April 30, 2021, July 1, 2022, February 28, 2023 and May 17, 2024, respectively, with respect to the 2021 Stock Incentive Plan. PART I INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

| Item 1. | Plan Information.* |

| Item 2. | Registrant Information and Employee Plan Annual Information.* |

| * | The information specified in Item 1 and Item 2 of Part I of Form S-8 is                                                                                                                                                                                                                                                                                                             
 omitted from this Registration Statement in accordance with the provisions of Rule 428 under the Securities Act of 1933, as amended (the “Securities Act”) and the introductory note to Part I of Form S-8. The documents containing the information specified in Part I of Form S-8 will be delivered to the participants in the equity benefit plans covered by this Registration 
 Statement as specified by Rule 428(b)(1) under the Securities Act.                                                                                                                                                                                                                                                                                                                  |

PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

| Item 3. | Incorporation of Documents by Reference. |

The following documents filed by the Company are incorporated herein by reference (except for portions thereof furnished or otherwise not filed with the SEC pursuant to Items 2.02 or 7.01 of Form 8-Kand exhibits furnished on such form that relate to such items, which are deemed not to be incorporated by reference into this Registration Statement):

All other reports and documents subsequently filed by the Company pursuant to Sections 13(a), 13