Form 8-K

8-K — STEM, INC.

Accession: 0001758766-26-000078

Filed: 2026-08-12

Period: 2026-08-12

CIK: 0001758766

SIC: 7373 (SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN)

Item: Completion of Acquisition or Disposition of Assets

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — stem-20260812.htm (Primary)

EX-99 (exhibit99-8xkx20260812xq22.htm)

GRAPHIC (stem-logoxcolorxbluea.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: stem-20260812.htm · Sequence: 1

stem-20260812

FALSE000175876600017587662026-08-122026-08-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_______________________________________

FORM 8-K

_______________________________________

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date Earliest Event Reported): August 12, 2026

_______________________________________

STEM, INC.

(Exact name of registrant as specified in its charter)

_______________________________________

Delaware 001-39455 85-1972187

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

1400 Post Oak Boulevard., Suite 560, Houston, Texas 77056

(Address of principal executive offices including zip code)

1-877-374-7836

Registrant’s telephone number, including area code

_______________________________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on

which registered

Common stock, par value $0.0001 STEM New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On August 12, 2026, Stem, Inc. (the “Company”) issued a press release announcing its financial results for the quarter ended June 30, 2026. The press release has been posted on the Company’s internet website at https://investors.stem.com/stock-and-financials/quarterly-results/default.aspx. A copy of the press release is furnished herewith as Exhibit 99 and is incorporated herein by reference into this Item 2.02. Slides in connection with the press release are available on the Stem Investor Relations website at https://investors.stem.com/stock-and-financials/quarterly-results/default.aspx. In accordance with General Instructions B.2. of Form 8-K, the information will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor will it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), except as expressly set forth by specific reference in such a filing.

Item 7.01. Regulation FD Disclosure.

On August 12, 2026, the Company issued a press release, a copy of which is furnished with this Form 8-K as Exhibit 99 and incorporated into this Item 7.01 by reference. In accordance with General Instruction B.2. of Form 8-K, the information will not be deemed “filed” for purposes of Section 18 of the Exchange Act, nor will it be deemed incorporated by reference into any filing under the Securities Act, except as expressly set forth by specific reference in such a filing.

Also, see Item 2.02, “Results of Operations and Financial Condition.”

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

The exhibit listed below is furnished pursuant to Item 9.01 of this Form 8-K.

Exhibit No. Description

Second Quarter 2026 Earnings Release

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

_____________________________________________________________________________________________

SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STEM, INC.

Date: August 12, 2026

By: /s/ Saul R. Laureles

Name: Saul R. Laureles

Title: Chief Legal Officer and Secretary

_____________________________________________________________________________________________

EX-99

Filename: exhibit99-8xkx20260812xq22.htm · Sequence: 2

Document

Exhibit 99

Stem Announces Second Quarter 2026 Results

Achieved fifth consecutive quarter of positive adjusted EBITDA

PowerTrackTM software revenue up 11% YoY

PowerTrackTM Energy Management System (EMS) recognized as leading, global innovative solution with The smarter E AWARD win

Reaffirming full year 2026 financial and operating guidance

HOUSTON – August 12, 2026 – Stem, Inc. (“Stem,” “we” or the “Company”) (NYSE: STEM), a global leader in AI-enabled clean energy software and services, today announced its results for the quarter ended June 30, 2026.

Financial Highlights

•Revenue of $33.7 million, down 12% from $38.4 million in 2Q25

•Software, services, and edge hardware revenue of $33.4 million, up 1% from $32.9 million in 2Q25

•GAAP gross profit of $13.9 million, up 9% from $12.8 million in 2Q25

•GAAP gross margin of 41%, up from 33% in 2Q25

•Non-GAAP gross profit of $18.4 million, down from $18.7 million in 2Q25

•Non-GAAP gross margin of 55%, up from 49% in 2Q25

•Net loss of $14.4 million versus net income of $202.5 million in 2Q25

•Adjusted EBITDA of $6.2 million up 63% from $3.8 million in 2Q25

•Operating cash flow of $0.3 million versus $(21.3) million in 2Q25

•Ended 2Q26 with $38.4 million in cash and cash equivalents versus $36.6 million in 1Q26

Operating Highlights

•Bookings of $36.8 million, up 39% from $26.5 million in 1Q26

•Contracted backlog of $27.1 million, up 18% from $23.0 million at the end of 1Q26

•Storage operating assets under management (“AUM”) of 1.8 gigawatt hours (“GWh”), up 6% sequentially

•Solar operating AUM of 38.3 gigawatts (“GW”), up 2% sequentially

•Contracted annual recurring revenue (“CARR”) of $69.0 million, up from $67.2 million at the end of 1Q26

•Annual recurring revenue (“ARR”) of $62.4 million, up from $61.2 million at the end of 1Q26

“The second quarter reflected strong momentum across our core PowerTrack platform and continued expansion of our international footprint,” stated Arun Narayanan, Chief Executive Officer of Stem. “We brought PowerTrack EMS to Latin America this quarter with the Granja Solar project in Chile, where our software will serve as the control system for a 135 MW solar facility being retrofitted with a 420 megawatt-hour battery storage system – a strong proof point for the kind of hybrid, utility-scale project that validates the commercial prospects of our EMS offering. Our products were also recognized internationally, with PowerTrack EMS receiving ‘The smarter E AWARD 2026’ in Europe for the Smart Integrated Energy category, an honor given to industry pioneers driving major innovations across energy storage and smart integrated energy, and a prestigious recognition for the clean energy industry. Alongside this sustained commercial progress, we are continuing to execute with discipline, delivering our fifth consecutive quarter of positive adjusted EBITDA and record non-GAAP gross margins. We remain focused on driving operating leverage, strengthening our core platform, and building the foundation for accelerated growth in 2027 and beyond.”

“Our second quarter results reflect our continued dedication to driving operating leverage in the business,” stated Brian Musfeldt, Chief Financial Officer of Stem. “Non-GAAP gross margins, adjusted EBITDA, and operating cash flow improved significantly versus the prior year. Because of our consistent performance and expectations for the rest of the year, we are pleased to reaffirm full year 2026 guidance across all metrics.”

Key Financial Results and Operating Metrics

($ in millions, unless otherwise noted)

Three Months Ended June 30, Six Months Ended June 30,

2026 2025 2026 2025

Key Financial Results

Revenue $ 33.7 $ 38.4 $ 62.7 $ 70.9

GAAP Gross Profit $ 13.9 $ 12.8 $ 24.8 $ 23.3

GAAP Gross Margin (%) 41 % 33 % 40 % 33 %

Non-GAAP Gross Profit* $ 18.4 $ 18.7 $ 33.6 $ 33.5

Non-GAAP Gross Margin (%)* 55 % 49 % 54 % 47 %

Net Income (Loss) $ (14.4) $ 202.5 $ (33.3) $ 177.5

Adjusted EBITDA* $ 6.2 $ 3.8 $ 8.2 $ (0.8)

Key Operating Metrics

Bookings $ 36.8 $ 34.3 $ 63.3 $ 68.8

Contracted Backlog** $ 27.1 $ 26.8 $ 27.1 $ 26.8

CARR** $ 69.0 $ 69.2 $ 69.0 $ 69.2

ARR** $ 62.4 $ 58.5 $ 62.4 $ 58.5

Solar Operating AUM (in GW)** 38.3 32.7 38.3 32.7

Storage Operating AUM (in GWh)** 1.8 1.7 1.8 1.7

* Non-GAAP financial measures. See the section below titled “Use of Non-GAAP Financial Measures” for details and the section below titled “Reconciliations of Non-GAAP Financial Measures” for reconciliations.

** At period end.

Second Quarter 2026 Financial and Operating Results

Financial Results

Revenue decreased 12% year-over-year to $33.7 million, versus $38.4 million in the second quarter of 2025, driven by significantly reduced battery hardware resales and lower managed services revenue. Revenue from software, services, and edge hardware was $33.4 million for the second quarter of 2026, up 1% from $32.9 million for the second quarter of 2025, driven by 11% year-over-year growth in PowerTrack software revenue, partially offset by lower managed services revenue.

GAAP gross profit was $13.9 million, or 41%, versus $12.8 million, or 33%, in the second quarter of 2025. The year-over-year increase in GAAP gross profit ($) and GAAP gross margin (%) was driven by reduced costs, increased higher-margin software, services, and edge hardware sales, and reduced lower-margin battery hardware resale and managed services revenue.

Non-GAAP gross profit was $18.4 million, or 55%, versus $18.7 million, or 49%, in the second quarter of 2025. The year-over-year decrease in non-GAAP gross profit ($) was driven by significantly decreased lower-margin battery hardware resales and managed services revenue. The year-over-year increase in non-GAAP gross margin (%) reflects increased higher-margin software, services, and edge hardware sales, along with reduced lower-margin battery hardware resale revenue.

Net loss was $14.4 million versus the second quarter of 2025 net income of $202.5 million. The year-over-year decrease was primarily due to a one-time gain on extinguishment of debt in the second quarter of 2025, which was partially offset by increased GAAP gross profit and lower operating expenses in the second quarter of 2026.

Adjusted EBITDA was $6.2 million, up 63% compared to $3.8 million in the second quarter of 2025. The year-over-year improvement was primarily driven by a higher mix of high-margin software and services revenue combined with lower operating expenses.

The Company ended the second quarter with $38.4 million in cash and cash equivalents, versus $36.6 million reported at the end of the first quarter of 2026.

Operating Results

Bookings were $36.8 million in the second quarter of 2026, up 39% from $26.5 million in the first quarter of 2026.

Contracted backlog was $27.1 million at the end of the second quarter of 2026, up 18% from $23.0 million at the end of the first quarter of 2026.

CARR was $69.0 million at the end of the second quarter of 2026, up 3% from $67.2 million at the end of the first quarter of 2026.

ARR increased 2% to $62.4 million at the end of the second quarter of 2026 from $61.2 million at the end of the first quarter of 2026. PowerTrack ARR increased 3% sequentially to $42.8 million in the second quarter of 2026 from $41.7 million at the end of the first quarter of 2026. Managed services ARR increased slightly to $19.6 million from $19.5 million at the end of the first quarter of 2026.

Solar operating AUM increased 2% sequentially to 38.3 GW for the second quarter of 2026. Storage operating AUM increased 6% sequentially to 1.8 GWh for the quarter.

The following table provides a summary of contracted backlog at the end of the second quarter of 2026, and includes only hardware and non-recurring services contracts, compared to backlog at the end of the first quarter of 2026 ($ in millions):

End of 1Q26

$ 23.0

Add: Bookings 20.7

Less: Hardware revenue (15.1)

Project and professional services revenue (1.2)

Amendments/Cancellations (0.3)

End of 2Q26

$ 27.1

Business Updates

•On August 12, 2026, the Company announced that Solarmarkt Group, together with engineering, procurement, and construction partner Pannonwatt Energetikai Megoldások Zrt., selected Stem's PowerTrack™ EMS as the integrated energy management, power plant control (PPC), and SCADA platform for the hybridization of two operating utility-scale solar plants in Hungary. The projects are expected to add a 40 MW / 80 MWh battery energy storage system to each of Solarmarkt Group's existing 60 MWp solar facilities. Stem previously supplied the PPC capabilities for the solar assets in 2025 and 2026 using a hybrid-ready PowerTrack architecture. Under the new agreement, the same software and controls foundation are expected to expand across the battery systems at each site, helping to enable solar generation, storage, grid interconnection, and market dispatch to operate through a single integrated solution.

•On July 1, 2026, the Company announced that its PowerTrack EMS won The smarter E AWARD 2026 in the Smart Integrated Energy category. Organized by Solar Promotion International GmbH and Freiburg Management and Marketing International GmbH, The smarter E AWARD is presented across five industry categories, honoring pioneers of the energy industry driving major innovations across energy storage and smart integrated energy. The Smart Integrated Energy category specifically highlights technologies advancing the integration, management, and performance of clean energy systems. The award was announced during The smarter E Europe in Munich, Europe's largest alliance of exhibitions for the energy industry, bringing together Intersolar Europe, ees Europe, Power2Drive Europe, and EM-Power Europe.

•On June 17, 2026, the Company announced the launch of AIONA, Stem’s AI services offering developed in direct response to growing customer and market demand for practical, execution-focused artificial intelligence solutions. AIONA builds on Stem’s deep experience applying AI, data science, optimization, and automation across complex clean energy environments.

•On May 27, 2026, the Company announced that Copec Flux, the renewable energy subsidiary of Copec S.A., is deploying Stem’s PowerTrack EMS at the Granja Solar project in Chile. This development expands Stem’s Latin America footprint and represents a meaningful step into the region’s utility-scale hybrid market. The Granja project is an existing 135 MW PV project that Copec is retrofitting with a 420 MWh BESS to create a hybrid solar-plus-storage facility that allows Copec to supply energy to the national energy grid at more valuable times. As part of that expansion, Stem’s PowerTrack EMS is expected to serve as the site’s master control system, providing the controls architecture needed to manage the integrated asset.

•On May 13, 2026, the Company announced that it entered into a services agreement with Bluesphere Ventures to support its portfolio of standalone battery energy storage projects participating in New York's Value of Distributed Energy Resources (VDER) program. Under the agreement, Stem is expected to provide revenue modeling, market analysis, and intelligence across Bluesphere Ventures' pipeline of battery storage projects located within Consolidated Edison (ConEd) territory in New York City.

•On April 30, 2026, the Company announced a co-marketing agreement with Nuvation Energy, a North American provider of battery management and energy control solutions, to jointly promote a fully North American-made BESS control stack. The agreement brings together Stem’s PowerTrack EMS and Unit Controller with Nuvation’s Battery Management System, to create an integrated control layer designed to meet growing demand for secure, compliant, and domestically sourced energy infrastructure.

•On April 28, 2026, the Company announced it acquired the assets of raicoon GmbH, a Vienna-based provider of automated fault detection and event management for solar asset performance. The acquisition enhances Stem’s PowerTrack platform by improving how operational data is analyzed and translated into action, helping customers identify, prioritize, and resolve performance issues more quickly across their renewable energy portfolios.

Outlook

The Company is reaffirming its full-year 2026 guidance as follows ($ millions, unless otherwise noted):

Revenue $140 - $190

Software, services, & edge hardware $130 - $150

Battery hardware resale Up to $40

Non-GAAP Gross Margin (%)* 40% - 50%

Adjusted EBITDA* $10 - $15

Operating Cash Flow $0 - $10

Year end ARR** $65 - $70

* See the section below titled “Reconciliations of Non-GAAP Financial Measures” for information regarding why Stem is unable to reconcile non-GAAP Gross Margin and adjusted EBITDA guidance to their most comparable financial measures calculated in accordance with GAAP.

** See below for definitions.

Some Factors Affecting our Business and Operations

The Company is subject to risk and exposure from the evolving macroeconomic, regulatory, geopolitical and business environment, including uncertainty regarding the effects of the One Big Beautiful Bill (OBBB) on our business and that of our suppliers and customers, the effects of increased import tariffs and retaliatory trade policies, global inflationary pressures and interest rates, potential economic slowdowns or recessions, government shutdowns, and geopolitical pressures, including the armed conflicts between Russia and Ukraine and in the Middle East, as well as tensions between China and the United States, and uncertainty around other current and future trade policies and other regulations. We regularly monitor and attempt to mitigate the direct and indirect effects of these circumstances on our business and financial results, although there is no guarantee of the extent to which we will be successful in these efforts.

Use of Non-GAAP Financial Measures

In addition to financial results determined in accordance with U.S. generally accepted accounting principles (“GAAP”), this earnings press release contains the following non-GAAP financial measures: adjusted EBITDA, non-GAAP gross profit and non-GAAP gross margin.

We use these non-GAAP financial measures for financial and operational decision-making and to evaluate our operating performance and prospects, develop internal budgets and financial goals, and facilitate period-to-period comparisons. Management believes that these non-GAAP financial measures provide meaningful supplemental information regarding our performance and liquidity by excluding certain expenses and expenditures that may not be indicative of our operating performance, such as stock-based compensation and other non-cash charges, as well as discrete cash charges that are infrequent in nature. We believe that both management and investors benefit from referring to these non-GAAP financial measures in assessing our performance and when planning, forecasting, and analyzing future periods. These non-GAAP financial measures also facilitate management’s internal comparisons to our historical performance and liquidity as well as comparisons to our competitors’ operating results, to the extent that competitors define these metrics in the same manner that we do. We believe these non-GAAP financial measures are useful to investors both because they (1) allow for greater transparency with respect to key metrics used by management in its financial and operational decision-making and (2) are used by investors and analysts to help them analyze the health of our business. Our calculation of these non-GAAP financial measures may differ from similarly titled non-GAAP measures, if any, reported by other companies. In addition, other companies may not publish these or similar measures. These non-GAAP financial measures should be considered in addition to, not as a substitute for, or superior to, other measures of financial performance prepared in accordance with GAAP. For

reconciliation of adjusted EBITDA and non-GAAP gross profit and margin to their most comparable GAAP measures, see the section below entitled “Reconciliations of Non-GAAP Financial Measures.”

Definitions of Non-GAAP Financial Measures

We define adjusted EBITDA as net (loss) income attributable to Stem before depreciation and amortization, including amortization of internally developed software, interest expense, further adjusted to exclude stock-based compensation and other income and expense items, including change in fair value of warrant liability, impairment of assets held for sale, and income tax provision or benefit. The expenses and other items that we exclude in our calculation of adjusted EBITDA may differ from the expenses and other items, if any, that other companies exclude when calculating adjusted EBITDA.

We define non-GAAP gross profit as gross profit excluding amortization of capitalized software, and impairments related to decommissioning of end-of-life systems. We define non-GAAP gross margin as non-GAAP gross profit as a percentage of revenue.

See also the section below entitled “Reconciliations of Non-GAAP Financial Measures.”

Conference Call Information

Stem will hold a conference call to discuss this earnings press release and business outlook on Wednesday, August 12, 2026, beginning at 5:00 p.m. Eastern Time. The conference call and accompanying slides may be accessed via a live webcast on a listen-only basis on the Events & Presentations page of the Investor Relations section of the Company’s website at https://investors.stem.com/news-events/ir-calendar. The call can also be accessed live over the telephone by dialing (877) 407-3982, or for international callers, (201) 493-6780 and referencing Stem. An audio replay will be available shortly after the call and can be accessed by dialing (844) 512-2921 or for international callers by dialing (412) 317-6671. The passcode for the replay is 13757930. The replay will be available until September 12, 2026. An archive of the webcast will be available shortly after the call on Stem’s website at https://investors.stem.com for 6 months following the call.

About Stem

Stem (NYSE: STEM) is a global leader reimagining technology to support the energy transition. We turn complexity into clarity and potential into performance.

Stem helps asset owners, operators, and energy stakeholders unlock the full value of their portfolios by enabling the intelligent development, deployment, and operation of clean energy assets. Stem’s integrated software suite, PowerTrack™, is the industry-standard and best-in-class platform for asset monitoring and optimization and is backed by expert professional and managed services, all delivered under one roof. Designed to address complex energy challenges seamlessly, our technology transforms raw data into clear, actionable insights, providing the visibility and intelligence needed to drive performance. With projects across 55 countries, customers have trusted Stem for nearly 20 years to maximize the value of their clean energy investments.

Driven by human and artificial intelligence, Stem is unlocking energy intelligence. Learn more at stem.com.

Forward-Looking Statements

This earnings press release, as well as other statements we make, contains “forward-looking statements” within the meaning of the federal securities laws, 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. Forward-looking statements address matters that are, to varying degrees, uncertain, such as statements about our financial and operating performance, guidance, targets and other forecasts or expectations regarding, or dependent on, our business outlook and strategy and expectations around our software-centric business; our ability to secure sufficient and timely inventory from suppliers; our ability to meet contracted customer demand; our ability to manage manufacturing or delivery delays; our ability to manage our supply chain and distribution channels; our acquisitions, joint ventures, partnerships and other alliances; forecasts or expectations regarding the energy transition and global climate change; the integration and optimization of energy resources; our business strategies and those of our customers; our ability to retain or upgrade current customers, further penetrate existing markets or expand into new markets; the effects of natural disasters and other events beyond our control; the impacts of the One Big Beautiful Bill Act (“OBBB”) on our business and that of our customers; the direct or indirect effects on our business of macroeconomic factors and geopolitical instability, such as the armed conflicts between Russia and Ukraine and in the Middle East; and our outlook and future results of operations, including revenue, adjusted EBITDA and other metrics. Such forward-looking statements are subject to risks, uncertainties, and other factors that could cause actual results or outcomes to differ materially from those expressed or implied by such forward-looking statements, including but not limited to our inability to execute on, and achieve the expected benefits from, our operational and strategic initiatives; including from our cost reduction and restructuring efforts; our inability to successfully execute on our new software-centric strategy; the effects of the OBBB on our business and that of our customers; our inability to secure sufficient and timely inventory from our suppliers, as well as contracted quantities of equipment; our inability to meet contracted customer demand; supply chain interruptions and manufacturing or delivery delays; disruptions in sales, production, service or other business activities; general macroeconomic and business conditions in key regions of the world, including inflationary pressures, general economic slowdown or a recession, high interest rates, changes in monetary policy, changes in trade policies, including tariffs or other trade restrictions or the threat of such actions, government shutdowns, and instability in financial institutions; the direct and indirect effects of widespread health emergencies on our workforce, operations, financial results and cash flows; geopolitical instability, such as the armed conflicts between Russia and Ukraine and in the Middle East; the results of operations and financial condition of our customers and suppliers; pricing pressures; severe weather and seasonal factors; our inability to continue to grow and manage our growth effectively; our inability to attract and retain qualified employees and key personnel; our inability to comply with, and the effect on our business of, evolving legal standards and regulations, including those concerning data protection, consumer privacy, sustainability, and evolving labor standards; risks relating to the development and performance of our software-enabled services; our inability to retain or upgrade current customers, further penetrate existing markets or expand into new markets; the risk that our business, financial condition and results of operations may be adversely affected by other political, economic, business and competitive factors; and other risks and uncertainties discussed in this release and in our most recent Forms 10-K, 10-Q and 8-K filed with or furnished to the SEC. If one or more of these or other risks or uncertainties materialize (or the consequences of any such development changes), or should our underlying assumptions prove incorrect, our actual results or outcomes, or the timing of these results or outcomes, may vary materially from those reflected in our forward-looking statements. Forward-looking statements and other statements in this release regarding our environmental, social, and other sustainability plans and goals are not an indication that these statements are necessarily material to the Company, investors, or other stakeholders, or required to be disclosed in our filings under U.S. securities laws or any other laws or requirements applicable to the Company. Forward-looking statements in this earnings press release are made as of the date of this release, 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.

Stem Investor Contacts

Erin Reed, Stem

Marc Silverberg, ICR

IR@stem.com

Stem Media Contacts

Tatjana Legans, Stem

press@stem.com

Source: Stem, Inc.

STEM, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

(in thousands, except share and per share amounts)

June 30, 2026 December 31, 2025

ASSETS

Current assets:

Cash and cash equivalents (VIE: $337 and $560 as of June 30, 2026 and December 31, 2025, respectively)

$ 38,415 $ 48,915

Accounts receivable, net of allowances of $2,717 and $3,893 as of June 30, 2026 and December 31, 2025, respectively

33,222 38,353

Inventory 6,122 4,587

Assets held for sale 1,229 —

Other current assets (VIE: $300 and $0 as of June 30, 2026 and December 31, 2025, respectively)

10,339 8,236

Total current assets 89,327 100,091

Energy storage systems, net 33,990 43,925

Contract origination costs, net 6,121 7,466

Goodwill 2,463 —

Intangible assets, net 113,045 123,028

Operating lease right-of-use assets 10,598 9,571

Other noncurrent assets 24,229 24,806

Total assets $ 279,773 $ 308,887

LIABILITIES AND STOCKHOLDERS’ DEFICIT

Current liabilities:

Accounts payable (VIE: $157 and $440 as of June 30, 2026 and December 31, 2025, respectively)

$ 14,468 $ 10,310

Accrued liabilities 21,796 26,875

Accrued payroll 5,552 9,131

Financing obligation, current portion 13,151 13,792

Deferred revenue, current portion 44,381 43,625

Other current liabilities 8,168 6,832

Total current liabilities 107,516 110,565

Deferred revenue, noncurrent 81,634 85,251

Asset retirement obligation 4,385 4,349

Convertible notes, noncurrent 184,007 183,594

Senior secured notes, noncurrent 135,212 128,796

Financing obligation, noncurrent 24,010 29,590

Warrant liability 2,207 5,121

Lease liabilities, noncurrent 10,070 9,860

Other liabilities 729 820

Total liabilities 549,770 557,946

Stockholders’ deficit:

Preferred stock, $0.0001 par value; 1,000,000 shares authorized as of June 30, 2026 and December 31, 2025; zero shares issued and outstanding as of June 30, 2026 and December 31, 2025

— —

Common stock, $0.0001 par value; 250,000,000 and 250,000,000 shares authorized as of June 30, 2026 and December 31, 2025, respectively; 9,607,873 and 8,489,540 issued and outstanding as of June 30, 2026 and December 31, 2025, respectively

1 1

Additional paid-in capital 1,252,624 1,239,263

Accumulated other comprehensive (loss) income (141) 41

Accumulated deficit (1,522,055) (1,488,747)

Total Stem stockholders’ deficit (269,571) (249,442)

Non-controlling interests (426) 383

Total stockholders’ deficit (269,997) (249,059)

Total liabilities and stockholders’ deficit $ 279,773 $ 308,887

STEM, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(UNAUDITED)

(in thousands, except share and per share amounts)

Three Months Ended

June 30, Six Months Ended

June 30,

2026 2025 2026 2025

Revenue

Services and other revenue $ 18,618 $ 20,852 $ 37,292 $ 38,573

Hardware revenue 15,036 17,522 25,362 32,313

Total revenue 33,654 38,374 62,654 70,886

Cost of revenue

Cost of services and other 11,559 14,262 23,503 25,675

Cost of hardware 8,208 11,312 14,405 21,873

Total cost of revenue 19,767 25,574 37,908 47,548

Gross profit 13,887 12,800 24,746 23,338

Operating expenses:

Sales and marketing 7,437 7,250 13,954 14,042

Research and development 6,459 9,993 13,034 21,321

General and administrative 8,207 8,900 16,873 22,466

(Remeasurement of) impairment of assets held for sale (545) — 2,770 —

Total operating expenses 21,558 26,143 46,631 57,829

Loss from operations (7,671) (13,343) (21,885) (34,491)

Other (expense) income, net:

Interest expense (7,510) (4,072) (14,869) (8,362)

Gain on extinguishment of debt — 220,047 — 220,047

Change in fair value of warrant liability 503 — 2,914 —

Other income, net 308 374 657 870

Total other (expense) income, net (6,699) 216,349 (11,298) 212,555

(Loss) income before provision for income taxes (14,370) 203,006 (33,183) 178,064

Provision for income taxes (13) (475) (125) (533)

Net (loss) income $ (14,383) $ 202,531 $ (33,308) $ 177,531

Net (loss) income per share attributable to common stockholders, basic $ (1.58) $ 24.31 $ (3.78) $ 21.48

Net loss per share attributable to common stockholders, diluted $ (1.58) $ (1.79) $ (3.78) $ (4.54)

Numerator used to compute net (loss) income per share:

Net (loss) income attributable to Stem common stockholders, basic $ (14,383) $ 202,531 $ (33,308) $ 177,531

Net loss attributable to Stem common stockholders, diluted $ (14,383) $ (15,160) $ (33,308) $ (38,205)

Weighted-average shares used in computing net (loss) income per share to common stockholders, basic 9,110,452 8,330,679 8,815,386 8,263,378

Weighted-average shares used in computing net loss per share to common stockholders, diluted 9,110,452 8,481,799 8,815,386 8,414,498

STEM, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(in thousands)

Six Months Ended

June 30,

2026 2025

OPERATING ACTIVITIES

Net (loss) income $ (33,308) $ 177,531

Adjustments to reconcile net (loss) income to net cash used in operating activities:

Depreciation and amortization expense 21,918 22,242

Non-cash interest expense, including interest expenses associated with debt issuance costs 737 210

Stock-based compensation 3,501 5,712

Change in fair value of warrant liability (2,914) —

Non-cash lease expense 1,319 1,362

Accretion of asset retirement obligations 123 119

Impairment loss of energy storage systems 103 1,413

Gain on disposal and abandonment of property, plant and equipment

(112) —

Impairment loss of project assets 4 966

Impairment of assets held for sale, net 2,770 —

Provision for credit losses on accounts receivable 17 1,547

Gain on extinguishment of debt — (220,047)

Other (16) 53

Changes in operating assets and liabilities:

Accounts receivable 5,114 14,772

Inventory (1,535) 6,321

Other assets (1,397) 1,715

Contract origination costs, net (547) (573)

Project assets (4) (2,202)

Accounts payable 4,083 (18,727)

Accrued expenses and other liabilities (3,339) (1,174)

Deferred revenue (2,861) (2,793)

Lease liabilities (1,631) (1,189)

Net cash used in operating activities (7,975) (12,742)

INVESTING ACTIVITIES

Capital expenditures on internally-developed software (2,555) (4,626)

Purchase of property and equipment — (48)

Net cash used in investing activities (2,555) (4,674)

FINANCING ACTIVITIES

Proceeds from issuances of common stock under at-the-market program, net 5,631 —

Repayment of financing obligations (4,701) (8,355)

Proceeds from issuance of senior secured notes — 10,000

(Distributions to) contributions from non-controlling interests, net (809) 37

Net cash provided by financing activities 121 1,682

Effect of exchange rate changes on cash, cash equivalents and restricted cash (91) 225

Net decrease in cash, cash equivalents and restricted cash (10,500) (15,509)

Cash, cash equivalents and restricted cash, beginning of year 50,701 58,085

Cash, cash equivalents and restricted cash, end of period $ 40,201 $ 42,576

RECONCILIATION OF CASH, CASH EQUIVALENTS, AND RESTRICTED CASH WITHIN THE UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS TO THE AMOUNTS SHOWN IN THE STATEMENTS OF CASH FLOWS ABOVE:

Cash and cash equivalents $ 38,415 $ 40,790

Restricted cash included in other noncurrent assets 1,786 1,786

Total cash, cash equivalents, and restricted cash $ 40,201 $ 42,576

STEM, INC.

RECONCILIATIONS OF NON-GAAP FINANCIAL MEASURES

(UNAUDITED)

The following table provides a reconciliation of adjusted EBITDA to net loss:

Three Months Ended June 30, Six Months Ended June 30,

2026 2025 2026 2025

(in thousands) (in thousands)

Net (loss) income $ (14,383) $ 202,531 $ (33,308) $ 177,531

Adjusted to exclude the following:

Depreciation and amortization (1)

11,507 12,926 22,025 24,621

Interest expense 7,510 4,072 14,869 8,362

Gain on extinguishment of debt — (220,047) — (220,047)

Stock-based compensation 1,454 1,395 3,501 5,712

Change in fair value of warrant liability (503) — (2,914) —

Recovery of accounts receivable write-off (2)

— (3,500) — (3,500)

(Remeasurement of) impairment of assets held for sale (545) — 2,770 —

Provision for income taxes 13 475 125 533

Other expenses (3)

1,173 5,965 1,158 5,978

Adjusted EBITDA $ 6,226 $ 3,817 $ 8,226 $ (810)

Adjusted EBITDA, as used in the Company's full-year 2026 guidance, is a non-GAAP financial measure that excludes or has otherwise been adjusted for items impacting comparability. The Company is unable to reconcile projected adjusted EBITDA to net loss, its most directly comparable forward-looking GAAP financial measure, without unreasonable effort, because the Company is unable to predict with a reasonable degree of certainty its change in stock-based compensation expense, depreciation and amortization expense, and other items that may affect net loss. The unavailable information could have a significant effect on the Company’s full-year 2026 GAAP financial results.

(1) Depreciation and amortization reflects depreciation and amortization expense, impairment loss of energy storage systems, and impairment loss of project assets.

(2) As previously disclosed, the Company wrote off certain receivables determined to be uncollectible. During the three and six months ended June 30, 2025, the Company recovered $3.5 million of the receivables previously written off.

(3) Adjusted EBITDA for the three and six months ended June 30, 2026 included other expenses of $1.2 million and $1.2 million, respectively. For the three months ended June 30, 2026, other expenses includes $1.1 million for acquisition and divestiture related charges and $0.1 million of other non-recurring expenses. For the six months ended June 30, 2026, other expenses includes $1.1 million for acquisition and divestiture related charges and $0.1 million of other non-recurring expenses.

Adjusted EBITDA for the three and six months ended June 30, 2025 included other expenses of $6.0 million and $6.0 million, respectively. For the three months ended June 30, 2025, other expenses includes $5.9 million for expenses related to restructuring costs to pursue greater efficiency and to realign our business and strategic priorities. For the six months ended June 30, 2025, other expenses includes $5.9 million for expenses related to restructuring costs to pursue greater efficiency and to realign our business and strategic priorities and $0.1 million of other non-recurring expenses.

The following table provides a reconciliation of non-GAAP gross profit and margin to GAAP gross profit and margin ($ in millions):

Three Months Ended June 30, Six Months Ended June 30,

2026 2025 2026 2025

Revenue $ 33.7 $ 38.4 $ 62.7 $ 70.9

Cost of revenue (19.8) (25.6) (37.9) (47.6)

GAAP gross profit 13.9 12.8 24.8 23.3

GAAP gross margin (%) 41 % 33 % 40 % 33 %

Adjustments to Gross Margin:

Amortization of capitalized software & developed technology 4.4 4.5 8.7 8.8

Impairments 0.1 1.4 0.1 1.4

Non-GAAP gross profit $ 18.4 $ 18.7 $ 33.6 $ 33.5

Non-GAAP gross margin (%) 55 % 49 % 54 % 47 %

Non-GAAP gross margin as used in the Company's full-year 2026 guidance, is a non-GAAP financial measure that excludes or has otherwise been adjusted for items impacting comparability. The Company is unable to reconcile projected non-GAAP gross margin to GAAP gross margin, its most directly comparable forward-looking GAAP financial measure, without unreasonable efforts, because the Company is currently unable to predict with a reasonable degree of certainty its change in amortization of capitalized software, impairments, and other items that may affect GAAP gross margin. The unavailable information could have a significant effect on the Company’s full-year 2026 GAAP financial results.

Key Definitions:

Item

Definition

ARR Annualized value from operating customer subscription contracts, including solar software, storage software & recurring managed services, and any recurring professional services contracts.

Bookings

Total value of executed customer purchase orders, as of the end of the relevant period (e.g. quarterly bookings or annual bookings). Customer purchase orders are typically executed three to six months ahead of hardware installation. The booking amount includes (1) hardware revenue, which is typically recognized at delivery of the energy storage hardware system and/or edge device to the customer, and (2) services revenue, which represents total nominal software and services contract value recognized ratably over the contract period.

Battery Hardware Resale Revenue Sales of energy storage systems.

CARR Annualized value from Stem customer subscription contracts with executed purchase orders signed in the period for systems that are not yet operating, and all operating Stem customer subscription contracts, including solar software, storage software & recurring managed services, and some recurring professional services contracts.

Contracted Backlog

Total value of hardware and non-recurring services bookings with executed purchase orders in dollars, as reflected on a specific date. Backlog increases as new purchase orders are executed (bookings) and decreases as hardware is delivered and recognized as revenue and as services are provided.

Edge Hardware Sales of edge device hardware to aid in the collection of site data and the real-time operation and control of a site.

Operating Cash Flow Net cash provided by (used in) operating activities. Does not represent the change in balance sheet cash which will be further impacted by investing and financing activities.

Project and Professional Services Revenue

Full lifecycle energy services including development and engineering, procurement and integration, performance and operations support, and revenue tied to Development Company investments.

Solar Operating AUM

Total GW of solar systems in operation.

PowerTrack Software Revenue Recurring SaaS revenue from PowerTrack software.

Storage Operating AUM

Total GWh of energy storage systems in operation.

Managed Services Revenue Includes (1) recurring revenue related to the operation and optimization of energy storage and hybrid portfolios managed by Stem and (2) Host Customer recurring and merchant revenues.

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