# EDGAR Filing Document

**Accession Number:** 0001758766
**File Stem:** 0001758766-25-000073
**Filing Date:** 2025-11
**Character Count:** 124005
**Document Hash:** eedba3e1574c3a56a8e36fbd71dd1e33
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001758766-25-000073.hdr.sgml**: 20251126

**ACCESSION NUMBER**: 0001758766-25-000073

**CONFORMED SUBMISSION TYPE**: S-3

**PUBLIC DOCUMENT COUNT**: 18

**FILED AS OF DATE**: 20251126

**DATE AS OF CHANGE**: 20251126

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STEM, INC.
- **CENTRAL INDEX KEY:** 0001758766
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 264466193
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-3
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291820
- **FILM NUMBER:** 251530855

**BUSINESS ADDRESS:**
- **STREET 1:** 1400 POST OAK BOULEVARD, SUITE 560
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** 877-374-7836

**MAIL ADDRESS:**
- **STREET 1:** 1400 POST OAK BOULEVARD, SUITE 560
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Star Peak Energy Transition Corp.
- **DATE OF NAME CHANGE:** 20200714

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Star Peak Energy Acquisition Corp.
- **DATE OF NAME CHANGE:** 20181119

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Roaring Fork Acquisition Corp.
- **DATE OF NAME CHANGE:** 20181109

**As filed with the Securities and Exchange Commission on November 26, 2025**

**Registration No. 333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;** 

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

**FORM S-3**

**REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933**

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

**STEM, INC.**

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

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

---

| | |
|:---|:---|
| **Delaware** | **85-1972187** |
| **(State or other jurisdiction of incorporation or organization)** | **(I.R.S. Employer Identification Number)** |

---

**1400 Post Oak Boulevard, Suite 560<br>Houston, Texas 77056<br>877-374-7836<br>(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)**

**Saul R. Laureles<br>Chief Legal Officer and Corporate Secretary<br>1400 Post Oak Boulevard, Suite 560<br>Houston, Texas 77056<br>877-374-7836<br>(Name, address, including zip code, and telephone number, including area code, of agent for service)**

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

***With a copy to:***

**Eric Scarazzo<br>Gibson, Dunn & Crutcher LLP<br>200 Park Avenue<br>New York, New York 10166-0193<br>(212) 351-4000**

**Approximate date of commencement of proposed sale to the public**: From time to time after the effective date of this registration statement.

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.

---

| | |
|:---|:---|
| 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 pursuant to Section 7(a)(2)(B) of Securities Act. ☐

&nbsp;&nbsp;&nbsp;&nbsp;**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 or until the registration statement shall become effective on such date as the Commission acting pursuant to said Section 8(a) may determine.**<br>

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**The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.**

**PROSPECTUS**

**Subject to Completion, dated November 26, 2025**

![image_1.jpg](image_1.jpg)

**STEM, INC.**

**$200,000,000**

**Common Stock**

**Preferred Stock**

**Warrants**

**Rights**

**Units**

We may offer and sell from time to time in one or more offerings, in amounts, at prices and on terms determined at the time of any such offering, (1) shares of our common stock, par value $0.0001 per share ("Common Stock"), (2) shares of our preferred stock, which we may issue in one or more series, (3) warrants, (4) rights and (5) units. The aggregate offering price of securities sold under this prospectus will not exceed $200.0 million. This prospectus describes the general terms of these securities and the general manner in which these securities will be offered. We will provide the specific terms of these securities in supplements to this prospectus, which will also describe the specific manner in which these securities will be offered and may also supplement, update or amend information contained in this prospectus. This prospectus may not be used to offer or sell securities without a prospectus supplement describing the method and terms of the offering. You should read this prospectus and any accompanying prospectus supplement, together with the documents we incorporate by reference, before you invest in our securities.

The securities may be sold separately or together through underwriters, dealers or, agents or directly to investors. If any underwriters, dealers or agents are involved in the sale of these securities we will set forth their names and describe their compensation in the applicable prospectus supplement. For additional information on the methods of sale, you should refer to the section entitled "Plan of Distribution" in this prospectus and in the applicable prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from such sale will also be set forth in a prospectus supplement.

Our Common Stock is listed on the New York Stock Exchange ("NYSE") under the symbol "STEM." The last reported sale price of our Common Stock on the NYSE on November 25, 2025 was $16.02 per share. We recommend that you obtain current market quotations for our Common Stock prior to making an investment decision.

**Investing in our securities involves risks. See "Risk Factors" in this prospectus, starting on page [2](#i833de08b42874632af61ad3c20c8f81e_25), as well as those contained in any accompanying prospectus supplement and in the documents incorporated by reference in this prospectus for a discussion of the factors you should carefully consider before deciding to purchase these securities.** 

**Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.**

Prospectus dated , 2025

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**TABLE OF CONTENTS**

**<u>Page</u>**

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| | |
|:---|:---|
| [ABOUT THIS PROSPECTUS](#i91db342873d34190b156cc48f8741559) | [ii](#i91db342873d34190b156cc48f8741559) |
| [WHERE YOU CAN FIND MORE INFORMATION](#i0d6694be7a2947b3b2ef2777ceb01bc9) | [iii](#i0d6694be7a2947b3b2ef2777ceb01bc9) |
| [INCORPORATION OF CERTAIN INFORMATION BY REFERENCE](#ib85528841565418f87eaf945cce89057) | [iii](#ib85528841565418f87eaf945cce89057) |
| [CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS](#i0ad80e3e2e004f1a99dcf520cbcb7e03) | [v](#i0ad80e3e2e004f1a99dcf520cbcb7e03) |
| [OUR COMPANY](#i69d391b7a93646cfbbb501c1bd9d5f82) | [1](#i69d391b7a93646cfbbb501c1bd9d5f82) |
| [RISK FACTORS](#i9e67ad9c6acd438f854b17481b8a90a7) | [2](#i9e67ad9c6acd438f854b17481b8a90a7) |
| [USE OF PROCEEDS](#i76e394aa3a10452687426b6f0bb95dbd) | [3](#i76e394aa3a10452687426b6f0bb95dbd) |
| [DESCRIPTION OF SECURITIES](#i5a71e1d88a5345f7acbf72952b4f7e93) | [4](#i5a71e1d88a5345f7acbf72952b4f7e93) |
| [PLAN OF DISTRIBUTION](#iba1329b564844042908da1bf613fcf46) | [15](#iba1329b564844042908da1bf613fcf46) |
| [LEGAL MATTERS](#i4df23121095f440a853c96219b7b3b0d) | [18](#i4df23121095f440a853c96219b7b3b0d) |
| [EXPERTS](#i561ae54692e642cf83f1192d330dc3b9) | [18](#i561ae54692e642cf83f1192d330dc3b9) |

---

i

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**ABOUT THIS PROSPECTUS**

This prospectus is part of a registration statement we filed with the Securities and Exchange Commission (the "SEC" or the "Commission") using a "shelf" registration process. By using a shelf registration statement, we may sell, from time to time, in one or more offerings, any combination of the securities described in this prospectus, up to a maximum aggregate offering price of $200.0 million.

This prospectus provides you with a general description of the securities that may be offered. Each time we sell securities, we will provide one or more prospectus supplements that will contain specific information about the terms of the offering. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The prospectus supplement and any related free writing prospectus may add, update or change the information contained in this prospectus. If there is any inconsistency between the information in this prospectus and any prospectus supplement, you should rely on the information in the prospectus supplement. Before you invest in our securities, you should read both this prospectus and any prospectus supplement together with the additional information described under the headings "Where You Can Find More Information" and "Incorporation of Certain Information by Reference."

You should rely only on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement. We have not authorized anyone to provide you with information in addition to or different from that contained in this prospectus and any applicable prospectus supplement. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained or incorporated by reference into in this prospectus or any applicable prospectus supplement or free writing prospectus. You must not rely on any unauthorized information or representations. This prospectus or any accompanying prospectus supplement does not offer to sell or ask for offers to buy any securities other than those to which it relates and it does not constitute an offer to sell or ask for offers to buy any of the securities in any jurisdiction where it is unlawful, where the person making the offer is not qualified to do so, or to any person who cannot legally be offered the securities. The information contained in this prospectus, any accompanying prospectus supplement or any document incorporated by reference in each of them is current only as of its date. Our business, financial condition, results of operations and prospects may have changed since those dates.

In this prospectus, except as otherwise indicated or as the context otherwise requires, all references to "Stem," the "Company," "we," "us," "our" and "ours" refer to Stem, Inc. and its consolidated subsidiaries.

ii

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**WHERE YOU CAN FIND MORE INFORMATION**

We file annual, quarterly and special reports, proxy statements and other information with the SEC, and we have filed with the SEC a registration statement on Form S-3 under the Securities Act of 1933, as amended (the "Securities Act"), with respect to the securities offered by this prospectus. This prospectus, which forms part of the registration statement, does not contain all of the information included in the registration statement, including its exhibits and schedules. For further information about us and the securities described in this prospectus, you should refer to the registration statement, its exhibits and schedules and our reports, proxies, information statements and other information filed with the SEC. Our filings are available to the public on the Internet, through a database maintained by the SEC at www.sec.gov. Our filings are also available, free of charge, on our website at www.stem.com. We have included our website address for the information of prospective investors and do not intend it to be an active link to our website. Information contained on our website does not constitute a part of this prospectus or any applicable prospectus supplement (or any document incorporated by reference herein or therein).

**INCORPORATION OF CERTAIN INFORMATION BY REFERENCE**

The SEC allows us to "incorporate by reference" information into this prospectus. This means that we can disclose important information about us and our financial condition to you by referring you to another document filed separately with the SEC. The information incorporated by reference is considered to be a part of this prospectus, except any information that is superseded by information that is included in a document subsequently filed with the SEC.

This prospectus incorporates by reference the documents listed below that we have previously filed with the SEC and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), from the date of this prospectus until the termination of an offering of securities, except that we are not incorporating by reference any information furnished (and not filed) with the SEC, including any information furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K or related exhibits furnished pursuant to Item 9.01 of Form 8-K:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• <u>[our Annual Report on Form 10-K](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000175876625000005/stem-20241231.htm)</u> for the fiscal year ended December 31, 2024, filed with the SEC on March 5, 2025 (our "2024 Form 10-K");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• our Quarterly Reports on Form 10-Q for the quarterly periods ended <u>[March 31, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000175876625000012/stem-20250331.htm)</u>, <u>[June 30, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000175876625000027/stem-20250630.htm)</u> and <u>[September 30, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001758766/000175876625000066/stem-20250930.htm)</u>, filed with the SEC on April 30, 2025, August 8, 2025 and October 30, 2025, respectively;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• our Current Reports on Form 8-K or Form 8-K/A filed with the SEC on <u>[January 16, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525007442/d858581d8k.htm)</u> (Item 5.02 only), <u>[January 21, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525009557/d893867d8k.htm)</u>, <u>[February 4, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525020088/d858889d8ka.htm)</u>, <u>[February 25, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525035289/d937137d8k.htm)</u>, <u>[March 7, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525049919/d939078d8k.htm)</u>, <u>[March 18, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525056217/d928070d8k.htm)</u> (Item 5.02 only), <u>[March 25, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001758766/000175876625000007/stem-20250324.htm)</u>, <u>[April 14, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525079764/d946758d8k.htm)</u>, <u>[June 5, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525135268/d42665d8k.htm)</u>, <u>[June 16, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000175876625000020/stem-20250611.htm)</u>, <u>[June 30, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525152073/d63876d8k.htm)</u> (Items 1.01, 2.03 and 3.02 only), <u>[July 2, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525154971/d63569d8k.htm)</u> (Item 5.02 only), <u>[July 3, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000119312525155177/d69896d8ka.htm)</u> (Item 5.02 only), <u>[July 22, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/1758766/000175876625000023/stem-20250630.htm)</u> and <u>[Oc](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001758766/000175876625000061/stem-20251015.htm)[tober 16, 2025](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001758766/000175876625000061/stem-20251015.htm)</u>;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the description of our Common Stock, par value $0.0001 per share, included in our registration statement on <u>[Form 8-A](https://www.sec.gov/Archives/edgar/data/1758766/000110465920095995/tm2024791d10_8a12b.htm)</u>, filed on August 17, 2020, as subsequently amended and updated from time to time, including by our Description of Securities, filed as <u>[Exhibit 4.3](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001758766/000175876622000032/stem-20211231.htm)</u> to our Annual Report on Form 10-K filed with the SEC on February 28, 2022; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other reports filed with the SEC pursuant to Section 13(a) or Section 15(d) of the Exchange Act since the end of the fiscal year covered by our 2024 Form 10-K.

Any statement contained in a document all or a portion of which is incorporated or deemed to be incorporated by reference herein will be deemed to be modified or superseded to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified will not be deemed to constitute a part hereof, except as so modified, and any statement so superseded will not be deemed to constitute a part hereof.

A copy of any document incorporated by reference in this prospectus may be obtained at no cost by writing or telephoning us at the following address and telephone number:

1400 Post Oak Boulevard, Suite 560<br>Houston, Texas 77056

iii

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<br>Attention: Investor Relations<br>877-374-7836

We maintain a website at www.stem.com. Information about us, including our reports filed with the SEC, is available through that site. Such reports are accessible at no charge through our website and are made available as soon as reasonably practicable after such material is filed with or furnished to the SEC. Our website and the information contained on that website, or connected to that website, are not incorporated by reference in this prospectus. You may read and copy any materials we file with the SEC at the SEC's website mentioned under the heading "Where You Can Find More Information." The information on the SEC's website is not incorporated by reference in this prospectus.

iv

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**CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS**

This prospectus, any accompanying prospectus supplement and the documents incorporated by reference herein and therein, and any related free writing prospectus, as well as other statements we make, contains "forward-looking statements" as defined by the Private Securities Litigation Report Act of 1995, which include any statements that are not historical facts. Such statements often contain words such as "expect," "may," "can," "believe," "predict," "plan," "potential," "projected," "projections," "forecast," "estimate," "intend," "anticipate," "ambition," "goal," "target," "think," "should," "could," "would," "will," "hope," "see," "likely," and other similar words. These forward-looking statements are based on the beliefs and assumptions of management. Although the Company believes that its plans, intentions and expectations reflected in or suggested by these forward-looking statements are reasonable, the Company cannot assure you that it will achieve or realize these plans, intentions or expectations. Forward-looking statements are inherently subject to risks, uncertainties and assumptions. Generally, statements that are not historical facts, including statements concerning the Company's possible or assumed future actions, business strategies, events or results of operations, are forward-looking statements.

We discuss in greater detail, and incorporate by reference into this prospectus in their entirety, the risks and uncertainties discussed in Part I, Item 1A, "Risk Factors" in our most recent Annual Report on Form 10-K, and any subsequent reports on Form 10-Q, as well as any amendments thereto and in subsequent filings with the SEC. These risk factors are not exhaustive. New risk factors emerge from time to time and it is not possible for us to predict all such risk factors, nor can we assess the impact of all such risk factors on our business or the extent to which any factor or combination of factors may cause actual results to differ materially from those contained in any forward-looking statements. All forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by the foregoing cautionary statements.

This prospectus and the documents incorporated by reference into this prospectus contain industry, statistical and market data derived from our own internal estimates and research, as well as from industry and general publications and research, surveys and studies conducted by third parties. All of the market data used in this prospectus involve a number of assumptions and limitations, and we cannot guarantee the accuracy or completeness of such information. While we are not aware of any misstatements regarding the third-party information and we believe that each of these surveys, studies and publications is reliable, the industry in which we operate is subject to a high degree of uncertainty and risk due to a variety of important factors. These and other factors could cause results to differ materially from those expressed in the estimates made by third parties and by us.

In addition, statements that "we believe" and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based on information available to us as of the date such statements are made and while we believe that information provides a reasonable basis for these statements, that information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant information. These statements are inherently uncertain, and investors are cautioned not to unduly rely on these statements.

Forward-looking statements in this prospectus and the documents incorporated by reference herein are made as of the date of this prospectus or the documents incorporated by reference herein, and the Company disclaims any intention or obligation to update publicly or revise such forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law.

v

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**OUR COMPANY** 

Stem is reimagining technology to drive the energy transition. We help asset owners, operators, and stakeholders benefit from the full value of their energy portfolio by enabling the intelligent development, deployment and operation of clean energy assets. Our integrated software suite, PowerTrack, provides asset monitoring software and solutions, supported by professional and managed services, under one roof. Our solutions and services are designed to provide customers with the information they need clearly and accurately and help harness raw data to inform actionable insight. With global projects managed in 55 countries, customers have relied on Stem for nearly 20 years to help maximize the value of their clean energy projects.

PowerTrack is our integrated suite of software and solutions for solar, storage and hybrid assets. Within the PowerTrack product suite we offer PowerTrack Software, PowerTrack Energy Management System, PowerTrack Supervisory Control and Data Acquisition, PowerTrack Power Plant Controller, PowerTrack Logger and PowerTrack Optimizer.

The PowerTrack Software for solar monitoring and analytics enables the standardization of energy portfolios on one hardware agnostic application. We offer commercial- and utility-scale edge hardware solutions, which are original equipment manufacturer-agnostic devices that are used to connect customers' solar and storage assets to our software applications in a unified view. We offer project services to our PowerTrack customers to assist with designing and commissioning of solutions. We offer Managed Services, which are full lifecycle, storage services covering the design, procurement, commissioning, operation and optimization of energy storage and hybrid systems, enabled by our PowerTrack Optimizer software. Our comprehensive suite of Professional Services supports solar and storage projects through every stage of the project lifecycle, providing our customers with the expertise needed to navigate complexity and scale clean energy portfolios. We serve project developers, asset owners, engineering, procurement and construction firms and distributors.

**Corporate Information** 

We are incorporated in the State of Delaware. We maintain executive offices at 1400 Post Oak Boulevard, Suite 560, Houston, Texas 77056, and our telephone number is (877) 374-7836. Our website address is www.stem.com. The information contained on our website or available through our website is not incorporated by reference into and should not be considered a part of this prospectus, and the reference to our website in this prospectus is an inactive textual reference only.

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**RISK FACTORS**

Investing in our securities involves risks. You should carefully consider all of the information contained or incorporated by reference in this prospectus, including the risks, uncertainties and other factors described in our most recent Annual Report on Form 10-K, as supplemented and updated by subsequent periodic and current reports that we have filed or will file with the SEC, and in other documents which are incorporated by reference into this prospectus, as well as the risk factors and other information contained in or incorporated by reference into any accompanying prospectus supplement before investing in any of our securities. Our financial condition, results of operations or cash flows could be materially adversely affected by any of these risks. The risks and uncertainties described in the documents incorporated by reference herein are not the only risks and uncertainties that you may face and new risks may emerge at any time and we cannot predict such risks or estimate the extent to which they may affect our financial performance.

For more information about our SEC filings, please see "Where You Can Find More Information" and "Incorporation of Certain Information by Reference" in this prospectus.

If any of the risks discussed in the foregoing documents were to occur, our business, financial condition, results of operations and prospects could be materially adversely affected. Also, please read the cautionary statement in this prospectus under "Cautionary Note Regarding Forward-Looking Statements."

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**USE OF PROCEEDS**

Unless otherwise set forth in a prospectus supplement with respect to the proceeds from the sale of the particular securities to which such prospectus supplement relates, we intend to use the net proceeds from the sale of the offered securities for general corporate purposes, including working capital. In addition, we may use a portion of such net proceeds for acquisitions of complementary businesses, technologies or other assets, or to fund the repayment, refinancing or redemption of outstanding debt. If we decide to use the net proceeds from a particular offering of securities for a particular purpose, we will describe that purpose, as well as any other required disclosures, in the related prospectus supplement. As a result, management will retain broad discretion over the allocation of the net proceeds of any offering.

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**DESCRIPTION OF SECURITIES**

The following summary of the material terms of our securities is not intended to be a complete summary of the rights and preferences of such securities, and is qualified by reference to our Second Amended and Restated Certificate of Incorporation, as amended (the "Certificate of Incorporation"), our Second Amended and Restated Bylaws, as amended (the "Bylaws"), and the warrant-related documents described herein, which are exhibits to the registration statement of which this prospectus is a part. We urge you to read each of the Certificate of Incorporation, the Bylaws and the warrant-related documents described herein in their entirety for a complete description of the rights and preferences of our securities. This section also summarizes relevant provisions of the Delaware General Corporation Law ("DGCL"). The terms of the DGCL are more detailed than the general information provided below. Therefore, you should carefully consider the actual provisions of these laws.

**DESCRIPTION OF CAPITAL STOCK**

**Authorized and Outstanding Stock**

The Certificate of Incorporation authorizes the issuance of 251,000,000 shares, consisting of (i) 250,000,000 shares of Common Stock, par value $0.0001 per share, and (ii) 1,000,000 shares of preferred stock, par value $0.0001 per share (the "Preferred Stock").

As of October 22, 2025, there were outstanding 8,390,208 shares of Common Stock, no shares of Preferred Stock outstanding, and 439,919 Warrants outstanding.

**Common Stock**

Holders of the Common Stock are entitled to one vote for each share held of record on all matters submitted to a vote of stockholders, including the election or removal of directors. Holders of the Common Stock do not have cumulative voting rights in the election of directors, meaning that the holders of a majority of the shares voting for the election of directors can elect all of the candidates standing for election.

Holders of the Common Stock do not have preemptive, subscription, redemption or conversion rights. Such Common Stock is not subject to further calls or assessment by the Company. There are no redemption or sinking fund provisions applicable to Common Stock. The rights, powers, preferences and privileges of holders of Common Stock are subject to those of the holders of any shares of the Preferred Stock that we may authorize and issue in the future.

In the event of the Company's liquidation, dissolution or winding up, and after payment in full of all amounts required to be paid to creditors and to the holders of Preferred Stock having liquidation preferences, if any, holders of the Common Stock are be entitled to receive pro rata our remaining assets available for distribution.

The Common Stock is listed on the NYSE, where it is traded under the symbol "STEM." Any additional shares of Common Stock that we will issue will also be listed on the NYSE.

**Preferred Stock**

The Certificate of Incorporation authorizes the board of directors to establish one or more series of preferred stock (including convertible preferred stock). Unless required by law or by the NYSE, the authorized shares of preferred stock will be available for issuance without further action by the holders of the Common Stock. The board of directors has the discretion to determine the powers, preferences and relative, participating, optional and other special rights, and the qualifications, limitations or restrictions thereof, including, without limitation, voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock, including, without limitation:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the designation of the series;

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the number of shares of the series, which the board of directors may, except where otherwise provided in the preferred stock designation, increase (but not above the total number of authorized shares of the class) or decrease (but not below the number of shares then outstanding);

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• whether dividends, if any, will be cumulative or non-cumulative and the dividend rate of the series;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the dates at which dividends, if any, will be payable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the redemption rights and price or prices, if any, for shares of the series;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the terms and amounts of any sinking fund provided for the purchase or redemption of shares of the series;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the amounts payable on shares of the series in the event of any voluntary or involuntary liquidation, dissolution or winding-up of the Company's affairs;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• whether the shares of the series will be convertible into shares of any other class or series, or any other security, of the Company or any other corporation, and, if so, the specification of the other class or series or other security, the conversion price or prices or rate or rates, any rate adjustments, the date or dates as of which the shares will be convertible and all other terms and conditions upon which the conversion may be made; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• restrictions on the issuance of shares of the same series or of any other class or series; and the voting rights, if any, of the holders of the series.

The Company could issue a series of preferred stock that could, depending on the terms of the series, impede or discourage an acquisition attempt or other transaction that some, or a majority, of the holders of the Common Stock might believe to be in their best interests or in which the holders of the Common Stock might receive a premium for the Common Stock over the market price of the Common Stock. Additionally, the issuance of preferred stock could adversely affect the rights of holders of the Common Stock by restricting dividends on the Common Stock, diluting the voting power of the Common Stock or subordinating the liquidation rights of the Common Stock. As a result of these or other factors, the issuance of preferred stock could have an adverse effect on the market price of the Common Stock. We currently have no plans to issue any preferred stock.

**Dividends**

The DGCL permits a corporation to declare and pay dividends out of "surplus" or, if there is no "surplus", out of its net profits for the fiscal year in which the dividend is declared and/or the preceding fiscal year. "Surplus" is defined as the excess of the net assets of the corporation over the amount determined to be the capital of the corporation by the board of directors. The capital of the corporation is typically calculated to be (and cannot be less than) the aggregate par value of all issued shares of capital stock. Net assets equals the fair value of the total assets minus total liabilities. The DGCL also provides that dividends may not be paid out of net profits if, after the payment of the dividend, capital is less than the capital represented by the outstanding stock of all classes having a preference upon the distribution of assets.

The Company has not paid any cash dividends on its Common Stock to date. Declaration and payment of any dividend in the future will be subject to the discretion of the board of directors. The time and amount of dividends will be dependent upon the Company's financial condition, operations, cash requirements and availability, debt repayment obligations, capital expenditure needs and restrictions in the Company's debt instruments, industry trends, the provisions of Delaware law affecting the payment of distributions to stockholders and any other factors the board of directors may consider relevant. In addition, the board of directors is not currently contemplating and does not anticipate declaring any stock dividends in the foreseeable future. Further, the Company's ability to declare dividends may be limited by restrictive covenants contained in the agreements governing the indebtedness of the Company's subsidiaries.

**Annual Stockholder Meetings**

The Bylaws provide that annual stockholder meetings will be held at a date, time and place, if any, as exclusively selected by the board of directors. To the extent permitted under applicable law, the Company may conduct meetings by remote communications, including by webcast.

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**Anti-Takeover Effects of the Company's Certificate of Incorporation and Bylaws and Certain Provisions of Delaware Law**

The Certificate of Incorporation, Bylaws, and the DGCL contain provisions, as summarized in the following paragraphs, that are intended to enhance the likelihood of continuity and stability in the composition of the Company's board of directors and to discourage certain types of transactions that may involve an actual or threatened acquisition of the Company. These provisions are intended to avoid costly takeover battles, reduce the Company's vulnerability to a hostile change of control and enhance the ability of the Company's board of directors to maximize stockholder value in connection with any unsolicited offer to acquire the Company. However, these provisions may have an anti-takeover effect and may delay, deter, or prevent a merger or acquisition of the Company by means of a tender offer, a proxy contest or other takeover attempt that a stockholder might consider in its best interest, including those attempts that might result in a premium over the prevailing market price for the shares of Common Stock held by stockholders.

*Authorized but Unissued Capital Stock*

Delaware law does not require stockholder approval for any issuance of authorized shares.

However, the listing requirements of NYSE, which would apply so long as the Common Stock remains listed on the NYSE, require stockholder approval of certain issuances equal to or exceeding 20% of the then- outstanding voting power of the Company's capital stock or the-then outstanding number of shares of Common Stock. These additional shares may be used for a variety of corporate purposes, including future public offerings, to raise additional capital or to facilitate acquisitions.

The Company's board of directors may generally issue preferred shares on terms calculated to discourage, delay or prevent a change of control of the Company or the removal of its management. Moreover, the Company's authorized but unissued shares of preferred stock will be available for future issuances without stockholder approval and could be utilized for a variety of corporate purposes, including future offerings to raise additional capital, to facilitate acquisitions and employee benefit plans.

One of the effects of the existence of unissued and unreserved Common Stock or preferred stock may be to enable the Company's board of directors to issue shares to persons friendly to current management, which issuance could render more difficult or discourage an attempt to obtain control of the Company by means of a merger, tender offer, proxy contest or otherwise, and thereby protect the continuity of the Company's management and possibly deprive the Company's stockholders of opportunities to sell their shares of Common Stock at prices higher than prevailing market prices.

*Classified Board of Directors*

The Certificate of Incorporation provides that the Company's board of directors are classified into three (3) classes of directors, with the classes to be as nearly equal in number as possible, and with each director serving a three (3) year term. As a result, approximately one-third (1/3) of the Company's board of directors will be elected each year. The classification of directors will make it more difficult for stockholders to change the composition of the Company's board of directors. The Certificate of Incorporation and the Bylaws provide that, subject to any rights of holders of preferred stock to elect additional directors under specified circumstances, the number of directors will be fixed from time to time exclusively pursuant to a resolution adopted by the board of directors.

*Business Combinations*

The Company is a Delaware corporation and is subject to the provisions of Section 203 of the DGCL, which regulates corporate takeovers. This statute prevents certain Delaware corporations, under certain circumstances, from engaging in a "business combination" with:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• a stockholder who owns 20% or more of the Company's outstanding voting stock (otherwise known as an "interested stockholder");

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• an affiliate of an interested stockholder; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• an associate of an interested stockholder, for three (3) years following the date that the stockholder became an interested stockholder.

A "business combination" includes a merger or sale of more than 10% of the Company's assets. However, the above provisions of Section 203 do not apply if:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the Company's board of directors approves the transaction that made the stockholder an "interested stockholder, prior to the date of the transaction";

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• after the completion of the transaction that resulted in the stockholder becoming an interested stockholder, that stockholder owned at least 85% of the Company's voting stock outstanding at the time the transaction commenced, other than statutorily excluded shares of Common Stock; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• on or subsequent to the date of the transaction, the initial business combination is approved by the Company's board of directors and authorized at a meeting of the Company's stockholders, and not by written consent, by an affirmative vote of at least two-thirds (2/3) of the outstanding voting stock not owned by the interested stockholder.

*Amendments to the Certificate of Incorporation and Bylaws*

Any amendment to the Certificate of Incorporation will be required to be approved by a majority of the Company's board of directors as well as, if required by law or the Certificate of Incorporation, a majority of the outstanding shares entitled to vote on the amendment and a majority of the outstanding shares of each class entitled to vote thereon as a class, except that the amendment of provisions to board classification, stockholder action, certificate amendments, and liability of directors must be approved by not less than 66 2/3% of the outstanding shares entitled to vote on the amendment, voting together as a single class. Any amendment to our Bylaws will be required to be approved by either a majority of the Company's board of directors or not less than 66 2/3% of the outstanding shares entitled to vote on the amendment, voting together as a single class.

*Removal of Directors; Vacancies*

Under the DGCL, and as provided in the Certificate of Incorporation, a director serving on a classified board may be removed by the stockholders only for cause and only by the affirmative vote of holders of at least 66 2/3% of the voting power of all outstanding shares of stock entitled to vote generally in the election of directors, voting together as a single class. In addition, the Certificate of Incorporation provides that any newly created directorship on the board of directors that results from an increase in the number of directors and any vacancies on the board of directors will be filled only by the affirmative vote of a majority of the remaining directors then in office or by a sole remaining director (and not by stockholders) even if less than a quorum.

*No Cumulative Voting*

Under Delaware law, the right to vote cumulatively does not exist unless the amended and restated certificate of incorporation specifically authorizes cumulative voting. Neither our Certificate of Incorporation nor our Bylaws permit cumulative voting.

*No Written Consent of Stockholders*

The Certificate of Incorporation provides that all stockholder actions be taken by a vote of the stockholders at an annual or special meeting, and that stockholders may not take any action by written consent in lieu of a meeting. This limit may lengthen the amount of time required to take stockholder actions and would prevent the amendment of our Bylaws or removal of directors by our stockholders without holding a meeting of stockholders.

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*Special Stockholder Meetings*

The Certificate of Incorporation provides that special meetings of the Company's stockholders may be called at any time only by or at the direction of the chief executive officer, the board of directors or the chairperson of the board of directors pursuant to a resolution adopted by a majority of the board of directors. The Bylaws provide that the business transacted at a special meeting shall be limited to the matters so stated in the notice for such meeting. These provisions may have the effect of deferring, delaying or discouraging hostile takeovers, or changes in control or management of the Company.

*Requirements for Advance Notification of Director Nominations and Stockholder Proposals*

The Bylaws establish advance notice procedures with respect to stockholder proposals and the nomination of candidates for election as directors, other than nominations made by or at the direction of the board of directors or a committee of the board of directors. In order for any matter to be "properly brought" before a meeting, a stockholder must comply with advance notice requirements and provide the Company with certain information. Generally, to be timely, a stockholder's notice must be received at the Company's principal executive offices not less than 90 days nor more than 120 days prior to the first anniversary date of the immediately preceding annual meeting of stockholders. The Bylaws also specify requirements as to the form and content of a stockholder's notice. The Bylaws allow the board of directors to adopt rules and regulations for the conduct of meetings as it deems appropriate, which may have the effect of precluding the conduct of certain business at a meeting if the rules and regulations are not followed. These provisions may also defer, delay, or discourage a potential acquirer from conducting a solicitation of proxies to elect the acquirer's own slate of directors or otherwise attempting to influence or obtain control of the Company.

**Dissenters' Rights of Appraisal and Payment**

Under the DGCL, with certain exceptions, the Company's stockholders have appraisal rights in connection with a merger or consolidation of the Company. Pursuant to the DGCL, stockholders who properly request and perfect appraisal rights in connection with such merger or consolidation will have the right to receive payment of the fair value of their shares as determined by the Delaware Court of Chancery.

**Stockholders' Derivative Actions**

Under the DGCL, any of the Company's stockholders may bring an action in the Company's name to procure a judgment in the Company's favor, also known as a derivative action, provided that the stockholder bringing the action is a holder of the Company's shares at the time of the transaction to which the action relates or such stockholder's stock thereafter devolved by operation of law.

**Exclusive Forum**

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**Conflicts of Interest**

Delaware law permits corporations to adopt provisions renouncing any interest or expectancy in certain opportunities that are presented to the corporation or its officers, directors, or stockholders. The Certificate of Incorporation, to the extent allowed by Delaware law, renounces any interest or expectancy that the Company has in, or right to be offered an opportunity to participate in, specified business opportunities that are from time to time presented to the Company's officers, directors or their respective affiliates in circumstances where the application of any such doctrine would conflict with any fiduciary duties or contractual obligations they may have, and the Company renounces any expectancy that any of the directors or officers of the Company will offer any such corporate opportunity of which they may become aware to the Company, except with respect to any of the directors or officers of the Company regarding a corporate opportunity that was offered to such person solely in his or her capacity as a director or officer of the Company and (i) such opportunity is one the Company is legally and contractually permitted to undertake and would otherwise be reasonable for it to pursue and (ii) the director or officer is permitted to refer that opportunity to the Company without violating any legal obligation.

**Limitations on Liability and Indemnification of Officers and Directors**

The DGCL authorizes corporations to limit or eliminate the personal liability of directors to corporations and their stockholders for monetary damages for breaches of directors' fiduciary duties, subject to certain exceptions. The Certificate of Incorporation includes a provision that eliminates the personal liability of directors for monetary damages for any breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL. The effect of these provisions is to eliminate the rights of the Company and its stockholders, through stockholders' derivative suits on the Company's behalf, to recover monetary damages from a director for breach of fiduciary duty as a director, including breaches resulting from grossly negligent behavior. However, exculpation does not apply to any director if the director has acted in bad faith, knowingly or intentionally violated the law, authorized illegal dividends or redemptions or derived an improper benefit from his or her actions as a director.

The Bylaws provide that the Company must indemnify and advance expenses to the Company's directors and officers to the fullest extent authorized by the DGCL. The Company also is expressly authorized to carry directors' and officers' liability insurance providing indemnification for the Company's directors, officers and certain employees for some liabilities. The Company believes that these indemnification and advancement provisions and insurance are useful to attract and retain qualified directors and executive officers.

The limitation of liability, advancement and indemnification provisions in the Certificate of Incorporation and the Bylaws may discourage stockholders from bringing a lawsuit against directors for breach of their fiduciary duty.

These provisions also may have the effect of reducing the likelihood of derivative litigation against directors and officers, even though such an action, if successful, might otherwise benefit the Company and its stockholders. In addition, your investment may be adversely affected to the extent the Company pays the costs of settlement and damage awards against directors and officers pursuant to these indemnification provisions.

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**DESCRIPTION OF WARRANTS**

**General** 

We may issue debt warrants for the purchase of debt securities or stock warrants for the purchase of preferred stock or Common Stock.

The warrants will be issued under warrant agreements to be entered into between us and the purchasers or between us and a bank or trust company, as warrant agent, all to be set forth in the applicable prospectus supplement relating to any or all warrants in respect of which this prospectus is being delivered. We will file a copy of the warrant and warrant agreement with the SEC each time we issue a series of warrants, and these warrants and warrant agreements will be incorporated by reference into the registration statement of which this prospectus forms a part.

The following description sets forth certain general terms and provisions of the warrants to which any applicable prospectus supplement may relate. The particular terms of the warrants to which any applicable prospectus supplement may relate and the extent, if any, to which such general provisions may apply to the warrants so offered will be described in the applicable prospectus supplement. The following summary of certain provisions of the warrants, warrant agreements and warrant certificates does not purport to be complete and is subject to, and is qualified in its entirety by express reference to, all the provisions of the warrant agreements and warrant certificates, including the definitions therein of certain terms.

**<u>Debt Warrants</u>**

*General*. Reference is made to the applicable prospectus supplement for the terms of debt warrants in respect of which this prospectus is being delivered, the debt securities warrant agreement relating to such debt warrants and the debt warrant certificates representing such debt warrants, including the following:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the designation, aggregate principal amount and terms of the debt securities purchasable upon exercise of such debt warrants and the procedures and conditions relating to the exercise of such debt warrants;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the designation and terms of any related debt securities with which such debt warrants are issued and the number of such debt warrants issued with each such debt security;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date, if any, on and after which such debt warrants and any related offered securities will be separately transferable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the principal amount of debt securities purchasable upon exercise of each debt warrant and the price at which such principal amount of debt securities may be purchased upon such exercise;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date on which the right to exercise such debt warrants shall commence and the date on which such right shall expire;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• a discussion of the material U.S. federal income tax considerations applicable to the ownership or exercise of debt warrants;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• whether the debt warrants represented by the debt warrant certificates will be issued in registered or bearer form, and, if registered, where they may be transferred and registered;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• call provisions of such debt warrants, if any; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other terms of the debt warrants.

The debt warrant certificates will be exchangeable for new debt warrant certificates of different denominations and debt warrants may be exercised at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement. Prior to the exercise of their debt warrants, holders of debt warrants will not have any of the rights of holders of the debt securities purchasable upon such exercise and will not be entitled to any payments of principal and premium, if any, and interest, if any, on the debt securities purchasable upon such exercise.

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*Exercise of Debt Warrants*. Each debt warrant will entitle the holder to purchase for cash such principal amount of debt securities at such exercise price as shall in each case be set forth in, or be determinable as set forth in, the applicable prospectus supplement relating to the debt warrants offered thereby. Unless otherwise specified in the applicable prospectus supplement, debt warrants may be exercised at any time up to 5:00 p.m., New York City time, on the expiration date set forth in the applicable prospectus supplement. After 5:00 p.m., New York City time, on the expiration date, unexercised debt warrants will become void.

Debt warrants may be exercised as set forth in the applicable prospectus supplement relating to the debt warrants. Upon receipt of payment and the debt warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will, as soon as practicable, forward the debt securities purchasable upon such exercise. If less than all of the debt warrants represented by such debt warrant certificate are exercised, a new debt warrant certificate will be issued for the remaining amount of debt warrants.

**Stock Warrants** 

*General*. Reference is made to the applicable prospectus supplement for the terms of stock warrants in respect of which this prospectus is being delivered, the stock warrant agreement relating to such stock warrants and the stock warrant certificates representing such stock warrants, including the following:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the type and number of shares of preferred stock or Common Stock purchasable upon exercise of such stock warrants and the procedures and conditions relating to the exercise of such stock warrants;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date, if any, on and after which such stock warrants and related offered securities will be separately tradeable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the offering price of such stock warrants, if any;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the initial price at which such shares may be purchased upon exercise of stock warrants and any provision with respect to the adjustment thereof;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date on which the right to exercise such stock warrants shall commence and the date on which such right shall expire;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• a discussion of the material U.S. federal income tax considerations applicable to the ownership or exercise of stock warrants;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• call provisions of such stock warrants, if any;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• anti-dilution provisions of the stock warrants, if any;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other terms of the stock warrants; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• information relating to any preferred stock purchasable upon exercise of such stock warrants.

The stock warrant certificates will be exchangeable for new stock warrant certificates of different denominations and stock warrants may be exercised at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement. Prior to the exercise of their stock warrants, holders of stock warrants will not have any of the rights of holders of shares of capital stock purchasable upon such exercise, and will not be entitled to any dividend payments on such capital stock purchasable upon such exercise.

*Exercise of Stock Warrants*. Each stock warrant will entitle the holder to purchase for cash such number of shares of preferred stock or Common Stock, as the case may be, at such exercise price as shall in each case be set forth in, or be determinable as set forth in, the applicable prospectus supplement relating to the stock warrants offered thereby. Unless otherwise specified in the applicable prospectus supplement, stock warrants may be exercised at any time up to 5:00 p.m., California time, on the expiration date set forth in the applicable prospectus supplement. After 5:00 p.m., California time, on the expiration date, unexercised stock warrants will become void.

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Stock warrants may be exercised as set forth in the applicable prospectus supplement relating thereto. Upon receipt of payment and the stock warrant certificates properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will, as soon as practicable, forward a certificate representing the number of shares of capital stock purchasable upon such exercise. If less than all of the stock warrants represented by such stock warrant certificate are exercised, a new stock warrant certificate will be issued for the remaining amount of stock warrants.

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**DESCRIPTION OF RIGHTS**

We may issue rights to purchase Common Stock or preferred stock. This prospectus and any accompanying prospectus supplement will contain the material terms and conditions for each right. The accompanying prospectus supplement may add, update or change the terms and conditions of the rights as described in this prospectus.

We will describe in the applicable prospectus supplement the terms and conditions of the issue of rights being offered, the rights agreement relating to the rights and the rights certificates representing the rights, including, as applicable:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the title of the rights;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date of determining the stockholders entitled to the rights distribution;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the title, aggregate number of shares of Common Stock or preferred stock purchasable upon exercise of the rights;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the exercise price;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the aggregate number of rights issued;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date, if any, on and after which the rights will be separately transferable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date on which the right to exercise the rights will commence and the date on which the right will expire; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other terms of the rights, including terms, procedures and limitations relating to the distribution, exchange and exercise of the rights.

Each right will entitle the holder of rights to purchase for cash the principal amount of shares of Common Stock or preferred stock at the exercise price provided in the applicable prospectus supplement. Rights may be exercised at any time up to the close of business on the expiration date for the rights provided in the applicable prospectus supplement. After the close of business on the expiration date, all unexercised rights will be void.

Holders may exercise rights as described in the applicable prospectus supplement. Upon receipt of payment and the rights certificate properly completed and duly executed at the corporate trust office of the rights agent or any other office indicated in the applicable prospectus supplement, we will, as soon as practicable, forward the shares of Common Stock or preferred stock purchasable upon exercise of the rights. If less than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby underwriting arrangements, as described in the applicable prospectus supplement.

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**DESCRIPTION OF UNITS**

We may issue units consisting of any combination of the other types of securities offered under this prospectus in one or more series. We may evidence each series of units by unit certificates that we will issue under a separate agreement. We may enter into unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. We will indicate the name and address of the unit agent in the applicable prospectus supplement relating to a particular series of units.

The following description, together with the additional information included in any applicable prospectus supplement, summarizes the general features of the units that we may offer under this prospectus. You should read the applicable prospectus supplement that we may authorize to be provided to you related to the series of units being offered, as well as the complete unit agreements that contain the terms of the units. Specific unit agreements will contain additional important terms and provisions and we will file as an exhibit to the registration statement of which this prospectus forms a part, or will incorporate by reference from another report that we file with the SEC, the form of each unit agreement relating to units offered under this prospectus.

If we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without limitation, the following, as applicable:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the title of the series of units;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• identification and description of the separate constituent securities comprising the units;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the price or prices at which the units will be issued;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the date, if any, on and after which the constituent securities comprising the units will be separately transferable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• a discussion of certain United States federal income tax considerations applicable to the units; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other terms of the units and their constituent securities.

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**PLAN OF DISTRIBUTION**

We may sell the securities offered through this prospectus in primary offerings (1) to or through underwriters or dealers, (2) directly to purchasers, including our affiliates, (3) through agents, (4) in an "at the market offering," within the meaning of Rule 415(a)(4) of the Securities Act or (5) through a combination of any these methods. The securities may be distributed at a fixed price or prices, which may be changed, market prices prevailing at the time of sale, prices related to the prevailing market prices, or negotiated prices. The applicable prospectus supplement will include the following information:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the terms of the offering;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the names of any underwriters or agents;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the name or names of any managing underwriter or underwriters;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the purchase price of the securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the net proceeds from the sale of the securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any delayed delivery arrangements;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any underwriting discounts, commissions and other items constituting underwriters' compensation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any initial public offering price;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any discounts or concessions allowed or reallowed or paid to dealers; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any commissions paid to agents.

*Sale through underwriters or dealers* 

If underwriters are used in the sale, the underwriters will acquire the securities for their own account, including through underwriting, purchase, security lending or repurchase agreements with us. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions. Underwriters may sell the securities in order to facilitate transactions in any of our other securities (described in this prospectus or otherwise), including other public or private transactions and short sales. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless otherwise indicated in the applicable prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers. The applicable prospectus supplement will include the names of the principal underwriters, the respective amount of securities underwritten, the nature of the obligation of the underwriters to take the securities and the nature of any material relationship between an underwriter and us.

If dealers are used in the sale of securities offered through this prospectus, we will sell the securities to them as principals. They may then resell those securities to the public at varying prices determined by the dealers at the time of resale. The applicable prospectus supplement will include the names of the dealers and the terms of the transaction.

*Direct sales and sales through agents* 

We may sell the securities offered through this prospectus directly. In this case, no underwriters or agents would be involved. Such securities may also be sold through agents designated from time to time. The applicable prospectus supplement will name any agent involved in the offer or sale of the offered securities and will describe any commissions payable to the agent by us. Unless otherwise indicated in the applicable prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

------

We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. The terms of any such sales will be described in the applicable prospectus supplement.

*Delayed delivery contracts* 

If the applicable prospectus supplement indicates, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the applicable prospectus supplement. The applicable prospectus supplement will describe the commission payable for solicitation of those contracts.

*Market making, stabilization and other transactions* 

Unless the applicable prospectus supplement states otherwise, each series of offered securities will be a new issue and will have no established trading market. We may elect to list any series of offered securities on an exchange. Any underwriters that we use in the sale of offered securities may make a market in such securities, but may discontinue such market making at any time without notice. Therefore, we cannot assure you that the securities will have a liquid trading market.

Any underwriter may also engage in stabilizing transactions, syndicate covering transactions and penalty bids in accordance with Rule 104 under the Exchange Act. Stabilizing transactions involve bids to purchase the underlying security in the open market for the purpose of pegging, fixing or maintaining the price of the securities. Syndicate covering transactions involve purchases of the securities in the open market after the distribution has been completed in order to cover syndicate short positions.

Penalty bids permit the underwriters to reclaim a selling concession from a syndicate member when the securities originally sold by the syndicate member are purchased in a syndicate covering transaction to cover syndicate short positions. Stabilizing transactions, syndicate covering transactions and penalty bids may cause the price of the securities to be higher than it would be in the absence of the transactions. The underwriters may, if they commence these transactions, discontinue them at any time.

*Derivative transactions and hedging* 

We, the underwriters or other agents may engage in derivative transactions involving the securities. These derivatives may consist of short sale transactions and other hedging activities. The underwriters or agents may acquire a long or short position in the securities, hold or resell securities acquired and purchase options or futures on the securities and other derivative instruments with returns linked to or related to changes in the price of the securities. In order to facilitate these derivative transactions, we may enter into security lending or repurchase agreements with the underwriters or agents. The underwriters or agents may effect the derivative transactions through sales of the securities to the public, including short sales, or by lending the securities in order to facilitate short sale transactions by others. The underwriters or agents may also use the securities purchased or borrowed from us or others (or, in the case of derivatives, securities received from us in settlement of those derivatives) to directly or indirectly settle sales of the securities or close out any related open borrowings of the securities.

*Electronic auctions* 

We may also make sales through the Internet or through other electronic means. Since we may from time to time elect to offer securities directly to the public, with or without the involvement of agents, underwriters or dealers, utilizing the Internet or other forms of electronic bidding or ordering systems for the pricing and allocation of such securities, you should pay particular attention to the description of that system we will provide in a prospectus supplement.

------

Such electronic system may allow bidders to directly participate, through electronic access to an auction site, by submitting conditional offers to buy that are subject to acceptance by us, and which may directly affect the price or other terms and conditions at which such securities are sold. These bidding or ordering systems may present to each bidder, on a so-called "real-time" basis, relevant information to assist in making a bid, such as the clearing spread at which the offering would be sold, based on the bids submitted, and whether a bidder's individual bids would be accepted, prorated or rejected.

Upon completion of such an electronic auction process, securities will be allocated based on prices bid, terms of bid or other factors. The final offering price at which securities would be sold and the allocation of securities among bidders would be based in whole or in part on the results of the Internet or other electronic bidding process or auction.

*General information* 

Agents, underwriters, and dealers may be entitled, under agreements entered into with us, to indemnification by us against certain liabilities, including liabilities under the Securities Act.

------

**LEGAL MATTERS** 

The validity of the securities offered hereby has been passed upon for us by Gibson, Dunn & Crutcher LLP, New York, New York. If the validity of any securities is also passed upon by counsel for the underwriters, dealers or agents of an offering of those securities, that counsel will be named in the applicable prospectus supplement.

**EXPERTS**

The consolidated financial statements of Stem, Inc. as of December 31, 2024 and 2023, and for each of the three years in the period ended December 31, 2024, incorporated by reference in this prospectus by reference to Stem, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2024 and the effectiveness of Stem, Inc.'s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports. Such consolidated financial statements are incorporated by reference in reliance upon the reports of such firm given their authority as experts in accounting and auditing.

------

![image_1.jpg](image_1.jpg)

**$200,000,000**

**Common Stock**

**Preferred Stock**

**Warrants**

**Rights**

**Units**

**PROSPECTUS**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2025

------

**PART II<br>INFORMATION NOT REQUIRED IN PROSPECTUS** 

**Item 14.&nbsp;&nbsp;&nbsp;&nbsp;Other Expenses of Issuance and Distribution.**

The following table shows the costs and expenses, other than underwriting discounts and commissions, payable in connection with the sale and distribution of the securities being registered. All amounts are estimated.

---

| | |
|:---|:---|
| **Type** | **Amount** |
| SEC registration fee | $27620<sup>(1)</sup> |
| Legal fees and expenses | \* |
| Accounting fees and expenses | \* |
| Financial printing and miscellaneous expenses | \* |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | \* |

---

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

(1) This amount does not reflect the SEC registration fee offset pursuant to Rule 457(p) of the Securities Act.

\* These fees cannot be estimated at this time, because they are calculated based on the securities offered and the number of issuances. An estimate of the aggregate expenses in connection with the sale and distribution of the securities being offered will be included in the applicable prospectus supplement.

**Item 15.&nbsp;&nbsp;&nbsp;&nbsp;Indemnification of Directors and Officers.**

The Company's Second Amended and Restated Certificate of Incorporation, as amended (the "Certificate of Incorporation"), includes a provision that eliminates the personal liability of directors for monetary damages for any breach of fiduciary duty as a director to the fullest extent such exemption from liability or limitation thereof is permitted under the Delaware General Corporation Law ("DGCL"). The Certificate of Incorporation and the Company's Amended and Restated Bylaws provide that the Company must indemnify and advance expenses to the Company's directors and officers involved in certain proceedings, to the fullest extent authorized by the applicable laws of the State of Delaware and the DGCL, respectively. The Company also is expressly authorized to carry directors' and officers' liability insurance providing indemnification for the Company's directors, officers and certain employees for some liabilities.

The Company entered into indemnification agreements with each of its directors and executive officers. The indemnification agreements provide that the Company indemnify each of its directors and executive officers against any and all expenses incurred by that director or executive officer because of his or her status as one of its directors or executive officers, to the fullest extent permitted by law. In addition, the indemnification agreements provide that the Company will advance all expenses incurred by its directors or executive officers in connection with a legal proceeding involving his or her status as a director or executive officer upon request by such director or executive officer, provided that, among other things, such advance will be made only upon receipt of an undertaking by or on behalf of the indemnitee to repay all amounts so advanced if it is ultimately determined that the indemnitee is not entitled to be indemnified.

------

**Item 16.&nbsp;&nbsp;&nbsp;&nbsp;Exhibits.**

A list of exhibits filed with this registration statement is set forth in the Exhibit Index, and such exhibits are incorporated into this Item 16 by reference.

---

| | | |
|:---|:---|:---|
| **Exhibit No.** | **Description** | **Incorporation by Reference** |
| 1.1\*\* | Form of Underwriting Agreement |  |
| &nbsp;&nbsp;&nbsp;&nbsp;4.1 | <u>[Second Amended and Restated Certificate of Incorporation](https://www.sec.gov/Archives/edgar/data/1758766/000110465921061061/tm2115079d1_ex3-1.htm)</u> | Incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the SEC on May 4, 2021 |
| &nbsp;&nbsp;&nbsp;&nbsp;4.2 | <u>[Certificate of Amendment](https://www.sec.gov/Archives/edgar/data/1758766/000175876625000020/exhibit31-8xkx20250616cert.htm)</u> | Incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the SEC on June 11, 2025  |
| &nbsp;&nbsp;&nbsp;&nbsp;4.3 | <u>[Second Amended and Restated Bylaws](https://www.sec.gov/Archives/edgar/data/1758766/000175876625000066/stem-10xq2025q3_ex33second.htm)</u> | Incorporated by reference to Exhibit 3.3 to the Company's Quarterly Report on Form 10-Q filed on October 30, 2025 |
| 4.4\*\* | Certificate of Designation, Preferences and Rights |  |
| 4.5\*\* | Form of Warrant |  |
| 4.6\*\* | Form of Warrant Agreement |  |
| 4.7\*\* | Form of Unit Agreement |  |
| 4.8\*\* | Form of Rights Agreement |  |
| &nbsp;&nbsp;&nbsp;&nbsp;5.1\* | <u>[Opinion of Gibson, Dunn & Crutcher LLP](exhibit5-gdcopinion.htm)</u> |  |
| &nbsp;&nbsp;&nbsp;&nbsp;23.1\* | <u>[Consent of Deloitte & Touche LLP, independent registered public accounting firm](exhibit231-deloitteconsent.htm)</u> |  |
| &nbsp;&nbsp;&nbsp;&nbsp;23.2\* | <u>[Consent of Gibson, Dunn & Crutcher LLP](exhibit5-gdcopinion.htm)</u> (included as part of Exhibit 5.1) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;24.1\* | <u>[Power of Attorney](#i833de08b42874632af61ad3c20c8f81e_67)</u> (included in the signature pages) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;107\* | <u>[Filing Fee Table](exfilingfees.htm)</u> |  |

---

<u>&nbsp;&nbsp;&nbsp;&nbsp;</u>

\*&nbsp;&nbsp;&nbsp;&nbsp;Filed herewith.

\*\* To be filed by amendment or incorporated by reference prior to the offering of securities.

------

**Item 17.&nbsp;&nbsp;&nbsp;&nbsp;Undertakings.**

The undersigned registrant hereby undertakes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended (the "Securities Act");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Securities and Exchange Commission (the "Commission") pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the "Calculation of Filing Fee Tables" table in the effective registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

*provided, however,* that paragraphs (i), (ii) and (iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining liability under the Securities Act to any purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5) or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. *Provided*, *however*, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv)&nbsp;&nbsp;&nbsp;&nbsp;Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;&nbsp;That, for purposes of determining any liability under the Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

------

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, the registrant, Stem, Inc., a Delaware corporation, 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 this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Houston, State of Texas, on November 26, 2025.

STEM, INC.

By:&nbsp;&nbsp;&nbsp;&nbsp;<u>/s/ Saul R. Laureles&nbsp;&nbsp;&nbsp;&nbsp;</u><br>Name:&nbsp;&nbsp;&nbsp;&nbsp;Saul R. Laureles<br>Title:&nbsp;&nbsp;&nbsp;&nbsp;Chief Legal Officer and Secretary

------

**POWER OF ATTORNEY**

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned do hereby constitute and appoint Saul R. Laureles as the individual's true and lawful attorney-in-fact and agent, with full power and authority to do any and all acts and things and to execute any and all instruments which said attorney and agent determines may be necessary or advisable or required to enable said corporation to comply with the Securities Act of 1933, as amended, and any rules or regulations or requirements of the Securities and Exchange Commission in connection with this registration statement. Without limiting the generality of the foregoing power and authority, the powers granted include the power and authority to sign the names of the undersigned officers and directors in the capacities indicated below to this registration statement, to any and all amendments, both pre-effective and post-effective, supplements to this registration statement and subsequent registration statements relating to the offering to which this registration statement relates (including pursuant to Rule 462(b)), and to any and all instruments or documents filed as part of or in conjunction with this registration statement or amendments or supplements thereof, and each of the undersigned hereby ratifies and confirms that such attorney and agent shall do or cause to be done by virtue hereof. This Power of Attorney may be signed in several counterparts.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities indicated on November 26, 2025.

---

| | |
|:---|:---|
| **Signature** | **Title** |
| /s/ Arun Narayanan | Chief Executive Officer |
| Arun Narayanan | (Principal Executive Officer) |
| /s/ Brian Musfeldt | Chief Financial Officer |
| Brian Musfeldt | (Principal Financial Officer) |
| /s/ Rahul Shukla | Chief Accounting Officer |
| Rahul Shukla | (Principal Accounting Officer) |
| /s/ David Buzby | Chairman of the Board of Directors |
| David Buzby | |
| /s/ Ira Birns | Director |
| Ira Birns | |
| /s/ Adam E. Daley | Director |
| Adam E. Daley | |
| /s/ Vasudevan Guruswamy | Director |
| Vasudevan Guruswamy | |
| /s/ Krishna Shivram | Director |
| Krishna Shivram | |
| /s/ Anil Tammineedi | Director |
| Anil Tammineedi | |
| /s/ Laura D'Andrea Tyson | Director |
| Laura D'Andrea Tyson | |

---

## Ex-Filing

?xml version='1.0' encoding='ASCII'? exfilingfees

**Exhibit 107**

**Calculation of Filing Fee Tables**

**Form S-3** (Form Type)

**STEM, INC.**

(Exact Name of Registrant as Specified in its Charter)

**Table 1: Newly Registered and Carry Forward Securities**

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Security Type** | **Security Class Title** | **Fee Calculation or Carry Forward Rule** | **Amount Registered (2)**  | **Proposed Maximum Offering Price Per Unit (2)** | **Maximum Aggregate Offering Price** | **Fee Rate** | **Amount of Registration Fee** | **Amount of Registration Fee** | **Carry Forward Form Type** | **Carry Forward File Number** | **Carry Forward Initial Effective Date** | **Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward** |
| **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** |
| Fees to Be Paid | Equity (1) | Common stock, par value $0.0001 per share  |  |  |  |  |  |  |  |  |  |  |  |
| Fees to Be Paid | Equity (1) | Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
| Fees to Be Paid | Other (1) | Warrants |  |  |  |  |  |  |  |  |  |  |  |
| Fees to Be Paid | Other (1) | Rights |  |  |  |  |  |  |  |  |  |  |  |
| Fees to Be Paid | Other (1) | Units |  |  |  |  |  |  |  |  |  |  |  |
| Fees to Be Paid | Unallocated (Universal) Shelf (1) |  | 457(o) |  | (3) | $200000000 | 0.00013810 | $27620.00 | $27620.00 |  |  |  |  |
| **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** |
| Carry Forward Securities | N/A | N/A | N/A | N/A | N/A | N/A |  |  | N/A | N/A | N/A | N/A | N/A |
|  |  | Total Offering Amounts | Total Offering Amounts | Total Offering Amounts | $200000000 | $200000000 | $27620.00 | $27620.00 |  |  |  |  |  |
|  |  | Total Fees Previously Paid | Total Fees Previously Paid | Total Fees Previously Paid |  |  |  |  |  |  |  |  |  |
|  |  | Total Fee Offsets | Total Fee Offsets | Total Fee Offsets |  |  | $27620.00 | $27620.00 |  |  |  |  |  |
|  |  | Net Fee Due | Net Fee Due | Net Fee Due |  |  | $0.00 | $0.00 |  |  |  |  |  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Represents securities that may be offered and sold from time to time in one or more offerings by Stem, Inc. (the "Registrant").

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Such indeterminate number or amount of common stock, preferred stock, warrants to purchase any combination of the foregoing securities, rights, as may from time to time be issued at indeterminate prices, and units composed of one or more of the foregoing securities, with an aggregate initial offering price not to exceed $200,000,000. Securities registered hereunder may be sold separately or together in any combination with other securities registered hereunder. The securities registered hereunder also include such indeterminate number of shares of common stock and preferred stock as may be issued upon conversion of or exchange for securities that provide for conversion or exchange, upon exercise of securities or pursuant to the antidilution provisions of any other securities.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The proposed maximum aggregate offering price per class of security will be determined from time to time by the Registrant in connection with the issuance by the Registrant of the securities registered hereunder and is not specified as to each class of security pursuant to Instruction 2.A(ii)(b) of Form S-3 under the Securities Act.

------

**Table 2: Fee Offset Claims and Sources** 

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Registrant**<br>**or Filer**<br>**Name** | **Form**<br>**or**<br>**Filing**<br>**Type** | **File**<br>**Number** | **Initial**<br>**Filing**<br>**Date** | **Filing**<br>**Date** | **Fee**<br>**Offset**<br>**Claimed** | **Security**<br>**Type**<br>**Associated**<br>**with Fee**<br>**Offset**<br>**Claimed** | **Security**<br>**Title**<br>**Associated**<br>**with Fee<br>Offset**<br>**Claimed** | **Unsold**<br>**Securities**<br>**Associated**<br>**with Fee**<br>**Offset**<br>**Claimed** | **Unsold**<br>**Aggregate**<br>**Offering**<br>**Amount**<br>**Associated**<br>**with Fee**<br>**Offset**<br>**Claimed** | **Fee**<br>**Paid**<br>**with**<br>**Fee**<br>**Offset**<br>**Source** |
| Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) | Rules 457(b) and 0-11(a)(2) |
| Fee Offset<br>Claims |  |  |  |  |  |  |  |  |  |  |  |
| Fee Offset<br>Sources |  |  |  |  |  |  |  |  |  |  |  |
| Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) | Rule 457(p) |
| Fee Offset<br>Claims | Stem, Inc. | S-3 | 333-267275 | September 2, 2022 |  | $27620.00(1) | Unallocated (Universal) Shelf |  |  | $600000000.00 |  |
| Fee Offset<br>Sources | Stem, Inc. | S-3 | 333-267275 |  | September 2, 2022 |  |  |  |  |  | $55620.00 |

---

(1) Stem, Inc. previously filed a Registration Statement on Form S-3 with the Securities and Exchange Commission on September 2, 2022 (File No. 333-267275) (the "Prior Registration Statement"), which registered up to $600,000,000 aggregate principal amount of common stock, preferred stock, debt securities, warrants to purchase any combination of the foregoing securities, rights, and units composed of one or more of the foregoing securities. In connection with the Prior Registration Statement, the Registrant paid a filing fee of $55,620.00, calculated in accordance with Rule 457(o) under the Securities Act. No securities were sold pursuant to the Prior Registration Statement, leaving $55,620.00 in previously paid fees available for future offset. In accordance with Rule 457(p) under the Securities Act, the Registrant is using $27,620.00 of the unused filing fees to offset the filing fee payable in connection with this filing. Accordingly, no additional registration fees are due to be paid at this time.

## Exhibit 5.1

**Exhibit 5.1**

![image_0.jpg](image_0.jpg)

November 26, 2025

Stem, Inc.

1400 Post Oak Boulevard, Suite 560

Houston, Texas 77056

Re:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stem, Inc. <br>Registration Statement on Form S-3

Ladies and Gentlemen:

We have acted as counsel to Stem, Inc., a Delaware corporation (the "<u>Company</u>"), in connection with the preparation and filing with the Securities and Exchange Commission (the "<u>Commission</u>") of a Registration Statement on Form S-3 (the "<u>Registration Statement</u>") under the Securities Act of 1933, as amended (the "<u>Securities Act</u>"), relating to the registration under the Securities Act and the proposed issuance and sale from time to time pursuant to Rule 415 under the Securities Act, together or separately and in one or more series (if applicable) of:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)shares of the Company's common stock, par value $0.0001 per share (the "<u>Common Stock</u>");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)rights to purchase Common Stock or Preferred Stock (the "<u>Rights</u>");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)shares of the Company's preferred stock, par value $0.0001 per share (the "<u>Preferred Stock</u>");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv)warrants for the purchase of Common Stock or Preferred Stock (the "<u>Warrants</u>"); and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v)units of the Company comprised of any combination of Common Stock, Preferred Stock, Warrants and Rights (the "<u>Units</u>").

The Common Stock, Rights, Preferred Stock, Warrants and Units are collectively referred to herein as the "Securities."

In arriving at the opinions expressed below, we have examined originals, or copies certified or otherwise identified to our satisfaction as being true and complete copies of the originals, of the specimen Common Stock and Rights certificates, and such other documents, corporate records, certificates of officers of the Company and of public officials and other instruments as we have deemed necessary or advisable to enable us to render these opinions. In our examination, we have assumed the genuineness of all signatures, the legal capacity and competency of all natural persons, the authenticity of all documents submitted to us as originals and the conformity to original documents of all documents submitted to us as copies. As to any facts material to these opinions, we have relied to the extent we deemed appropriate and without independent

**Gibson, Dunn & Crutcher LLP**<br>200 Park Avenue \| New York, NY 10166-0193 \| T: 212.351.4000 \| F: 212.351.4035 \| gibsondunn.com<br>

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investigation upon statements and representations of officers and other representatives of the Company and others.

We have assumed without independent investigation that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)at the time any Securities are sold pursuant to the Registration Statement (the "<u>Relevant Time</u>"), the Registration Statement and any supplements and amendments thereto (including post-effective amendments) will be effective and will comply with all applicable laws;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)at the Relevant Time, a prospectus supplement will have been prepared and filed with the Commission describing the Securities offered thereby and all related documentation and will comply with all applicable laws;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)all Securities will be issued and sold in the manner stated in the Registration Statement and the applicable prospectus supplement;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv)at the Relevant Time, all corporate or other action required to be taken by the Company to duly authorize each proposed issuance of Securities and any related documentation (including (i) the due reservation of any shares of Common Stock or Preferred Stock for issuance upon exercise, conversion or exchange of any Securities for Common Stock or Preferred Stock (a "<u>Convertible Security</u>"), and (ii) the execution (in the case of certificated Securities), delivery and performance of the Securities and any related documentation referred to in paragraphs 1 through 5 below) shall have been duly completed and shall remain in full force and effect;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v)upon issuance of any Common Stock or Preferred Stock, including upon exercise, conversion or exchange of any Convertible Security, the total number of shares of Common Stock or Preferred Stock issued and outstanding will not exceed the total number of shares of Common Stock or Preferred Stock, as applicable, that the Company is then authorized to issue under its certificate of incorporation and other relevant documents; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(vi)at the Relevant Time, a definitive purchase, underwriting or similar agreement and any other necessary agreement with respect to any Securities offered or issued will have been duly authorized by all necessary corporate or other action of the Company and duly executed and delivered by the Company and the other parties thereto.

Based on the foregoing and in reliance thereon, and subject to the assumptions, exceptions, qualifications and limitations set forth herein, we are of the opinion that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.With respect to any shares of Preferred Stock, when:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.the certificate of designations relating to such Preferred Stock (the "<u>Certificate of Designations</u>") has been duly executed and filed with the Office of the Secretary of State of the State of Delaware,

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.such shares have been issued either (i) in accordance with the applicable definitive purchase, underwriting or similar agreement and for the consideration therefor provided for therein or (ii) upon exercise, conversion or exchange of any Convertible Security and for any additional consideration specified in such Convertible Security or the instrument governing such Convertible Security providing for such conversion or exercise, which consideration (including any consideration paid for such Convertible Security), on a per-share basis, shall in either event not be less than the par value of the Preferred Stock, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.any such Convertible Security was previously validly issued and is fully paid an non-assessable (in the case of an equity Security) or is a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms,

such shares of Preferred Stock will be validly issued, fully paid and non-assessable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.With respect to shares of Common Stock, when:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.such shares of Common Stock have been duly executed (in the case of certificated shares) and delivered either (i) in accordance with the applicable definitive purchase, underwriting or similar agreement for the consideration provided for therein, or (ii) upon conversion or exercise of any Convertible Security, in accordance with the terms of such Convertible Security or the instrument governing such Convertible Security providing for such conversion or exercise, and for any additional consideration specified therein, which consideration (including any consideration paid for such Convertible Security), on a per-share basis, shall in either event not be less than the par value of the Common Stock, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.any such Convertible Security was previously validly issued and is fully paid and non-assessable (in the case of an equity Security) or is a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms,

such shares of Common Stock will be validly issued, fully paid and non-assessable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.With respect to any Rights, when

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.the related rights agreement (the "<u>Rights Agreement</u>"), if any, has been duly executed and delivered by the Company and each other party thereto,

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.when the Rights have been established in accordance with the Rights Agreement, if any, or the applicable definitive purchase, underwriting or similar agreement, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.such Rights have been executed (in the case of certificated Rights) and delivered in accordance with the Rights Agreement, if any, and the applicable definitive purchase, underwriting or similar agreement for the consideration provided for therein,

such Rights will be legal, valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.With respect to any Warrants, when:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.the warrant agreement relating to such Warrants (the "<u>Warrant Agreement</u>"), if any, has been duly executed and delivered by the Company and each other party thereto,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.the terms of the Warrants have been established in accordance with the Warrant Agreement, if any, and the applicable definitive purchase, underwriting or similar agreement, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.the Warrants have been duly executed (in the case of certificated Warrants) and delivered in accordance with the Warrant Agreement, if any, and the applicable definitive purchase, underwriting or similar agreement for the consideration provided for therein,

such Warrants will be legal, valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.With respect to any Units, when:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.the unit agreement relating to the Units (the "<u>Unit Agreement</u>"), if any, has been duly executed and delivered by the Company and each other party thereto,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.the terms of the Units have been duly established in accordance with the Unit Agreement, if any, and the applicable definitive purchase, underwriting or similar agreement, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.the Units have been duly executed (in the case of certificated Units) and delivered in accordance with the Unit Agreement, if any, and the applicable definitive purchase, underwriting or similar agreement for the consideration provided for therein,

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the Units will be legal, valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

The opinions expressed above are subject to the following exceptions, qualifications, limitations and assumptions:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A.We render no opinion herein as to matters involving the laws of any jurisdiction other than the State of New York and the United States of America and, for purposes of paragraphs 1 and 2, the Delaware General Corporation Law. We are not admitted to practice in the State of Delaware; however, we are generally familiar with the Delaware General Corporation Law as currently in effect and have made such inquiries as we consider necessary to render the opinions contained in paragraphs 1 and 2 above. Without limitation, we do not express any opinion regarding any Delaware contract law. This opinion is limited to the effect of the current state of the laws of the State of New York and the United States of America and, to the limited extent set forth above, the laws of the State of Delaware and the facts as they currently exist. We assume no obligation to revise or supplement this opinion in the event of future changes in such laws or the interpretations thereof or such facts.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.The opinions above with respect to the Rights, the Rights Agreement, the Warrants, the Warrant Agreement, the Units and the Unit Agreement (collectively, the "<u>Documents</u>") are each subject to (i) the effect of any bankruptcy, insolvency, reorganization, moratorium, arrangement or similar laws affecting the rights and remedies of creditors' generally, including without limitation the effect of statutory or other laws regarding fraudulent transfers or preferential transfers, and (ii) general principles of equity, including without limitation concepts of materiality, reasonableness, good faith and fair dealing and the possible unavailability of specific performance, injunctive relief or other equitable remedies regardless of whether enforceability is considered in a proceeding in equity or at law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.We express no opinion regarding the effectiveness of (i) any waiver of stay, extension or usury laws or of unknown future rights; (ii) any waiver (whether or not stated as such) under any Document of, or any consent thereunder relating to, unknown future rights or the rights of any party thereto existing, or duties owing to it, as a matter of law; (iii) any waiver (whether or not stated as such) contained in any Document of rights of any party, or duties owing to it, that is broadly or vaguely stated or does not describe the right or duty purportedly waived with reasonable specificity; (iv) provisions relating to indemnification, exculpation or contribution, to the extent such provisions may be held unenforceable as contrary to public policy or federal or state securities laws or due to the negligence or willful misconduct of the indemnified party; (v) any provision in any Document waiving the right to object to venue in any court; (vi) any agreement to submit to the jurisdiction of any Federal court; (vii) any waiver of the right to jury trial; or (viii) any provision to the effect that every right or remedy is cumulative and may be exercised in addition to any other right or remedy or that the election of some particular remedy does not preclude recourse to one or more others.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D.To the extent relevant to our opinions in paragraphs 4 and 5 and not covered by our opinions in paragraphs 1 or 2, we have assumed that any securities, currencies or

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commodities underlying, comprising or issuable upon exchange, conversion or exercise of any Rights, Warrants, or Units are validly issued, fully paid and non-assessable (in the case of an equity security) or a legal, valid and binding obligation of the issuer thereof, enforceable against such issuer in accordance with its terms.

You have informed us that you intend to issue Securities from time to time on a delayed or continuous basis, and we understand that prior to issuing any Securities pursuant to the Registration Statement (i) you will advise us in writing of the terms thereof, and (ii) you will afford us an opportunity to (x) review the operative documents pursuant to which such Securities are to be issued or sold (including the applicable offering documents), and (y) file such supplement or amendment to this opinion (if any) as we may reasonably consider necessary or appropriate.

We consent to the filing of this opinion as an exhibit to the Registration Statement, and we further consent to the use of our name under the caption "Legal Matters" in the Registration Statement and the prospectus that forms a part thereof. In giving these consents, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations of the Commission promulgated thereunder.

Very truly yours,

/s/ GIBSON, DUNN & CRUTCHER LLP

## Exhibit 23.1

**Exhibit 23.1**

![image_01.jpg](image_01.jpg)

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

We consent to the incorporation by reference in this Registration Statement on Form S-3 of our reports dated March 4, 2025 relating to the financial statements of Stem, Inc. and the effectiveness of Stem, Inc.'s internal control over financial reporting, appearing in the Annual Report on Form 10-K for the year ended December 31, 2024. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ Deloitte & Touche LLP

San Francisco, California

November 26, 2025

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