Form 8-K

8-K — CMS ENERGY CORP

Accession: 0001104659-26-049718

Filed: 2026-04-28

Period: 2026-04-28

CIK: 0000811156

SIC: 4931 (ELECTRIC & OTHER SERVICES COMBINED)

Item: Results of Operations and Financial Condition

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2612873d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2612873d1_ex99-1.htm)

EX-99.2 — EXHIBIT 99.2 (tm2612873d1_ex99-2.htm)

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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 of earliest event reported)

April 28, 2026

Commission

Registrant; State of Incorporation;

IRS Employer

File Number

Address; and Telephone Number

Identification No.

1-9513

CMS ENERGY CORPORATION

(A Michigan Corporation)

One Energy Plaza

Jackson, Michigan 49201

(517) 788-0550

38-2726431

1-5611

CONSUMERS ENERGY COMPANY

Michigan Corporation)

One Energy Plaza

Jackson, Michigan 49201

(517) 788-0550

38-0442310

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:

¨ 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

CMS Energy Corporation Common Stock, $0.01 par value

CMS

New York Stock Exchange

CMS Energy Corporation 5.625% Junior Subordinated Notes due 2078

CMSA

New York Stock Exchange

CMS Energy Corporation 5.875% Junior Subordinated Notes due 2078

CMSC

New York Stock Exchange

CMS Energy Corporation 5.875% Junior Subordinated Notes due 2079

CMSD

New York Stock Exchange

CMS Energy Corporation, Depositary Shares,

each representing a 1/1,000th interest in a share of 4.200% Cumulative Redeemable Perpetual Preferred Stock, Series C

CMS PRC

New York Stock Exchange

Consumers

Energy Company Cumulative Preferred Stock, $100 par value: $4.50 Series

CMS-PB

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: CMS Energy Corporation ¨ Consumers

Energy Company ¨

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.  CMS

Energy Corporation ¨ Consumers

Energy Company ¨

Co-Registrant CIK

0000201533

Co-Registrant Amendment Flag

false

Co-Registrant Form Type

8-K

Co-Registrant DocumentPeriodEndDate

2026-04-28

Co-Registrant Written Communications

false

Co-Registrant Solicitating Materials

false

Co-Registrant PreCommencement Tender Offer

false

Co-Registrant PreCommencement Issuer Tender Offer

false

Item 2.02. Results of Operations and Financial Condition.

On April 28, 2026, CMS Energy Corporation (“CMS Energy”)

issued a News Release, in which it announced its 2026 first quarter results. Attached as Exhibit 99.1

to this report and incorporated herein by reference is a copy of the CMS Energy News Release, furnished as a part of this report.

Exhibit 99.1 contains certain financial measures that are considered

“non-GAAP financial measures” as defined in Securities and Exchange Commission rules. Other than forward-looking earnings

guidance, Exhibit 99.1 contains a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures

calculated and presented in accordance with accounting principles generally accepted in the United States. Adjustments could include items

such as discontinued operations, asset sales, impairments, restructuring costs, business optimization initiative, major enterprise resource

planning software implementations, changes in accounting principles, voluntary separation program, changes in federal and state tax policy,

regulatory items from prior years, unrealized gains or losses from mark-to-market adjustments, recognized in net income related to NorthStar

Clean Energy's interest expense, or other items. Management views adjusted earnings as a

key measure of CMS Energy’s present operating financial performance and uses adjusted earnings for external communications with

analysts and investors. Internally, CMS Energy uses adjusted earnings to measure and assess performance. Because CMS Energy is not able

to estimate the impact of specific line items, which have the potential to significantly impact, favorably or unfavorably, reported earnings

in future periods, Exhibit 99.1 does not contain reported earnings guidance nor a reconciliation for the comparable future period earnings.

The adjusted earnings should be considered supplemental information to assist in understanding our business results, rather than as a

substitute for the reported earnings. All references to net income refer to net income available

to common stockholders and references to earnings per share are on a diluted basis.

Item 7.01. Regulation FD Disclosure.

The information set forth in the CMS Energy News Release dated April

28, 2026, attached as Exhibit 99.1, is incorporated by reference in response to this Item 7.01.

CMS Energy will hold a webcast to discuss its 2026 first quarter results

and provide a business and financial outlook on April 28 at 10:00 a.m. (ET). A copy of the CMS Energy presentation is furnished as Exhibit 99.2

to this report. A webcast of the presentation will be available on the CMS Energy website, www.cmsenergy.com.

In accordance with General Instruction B.2 of Form 8-K, the information

in this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, shall not be deemed “filed” for the purposes of

Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liabilities of that section, nor shall it be deemed

incorporated by reference in any filing under the Securities Act of 1933.

Investors and others should note that CMS Energy routinely posts important

information on its website and considers the Investor Relations section, www.cmsenergy.com/investor-relations, a channel of distribution.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Index

99.1

CMS Energy News Release dated April 28, 2026

99.2

CMS Energy presentation dated April 28, 2026

104

Cover Page Interactive Data File (the cover page XBRL tags are embedded in the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act

of 1934, the Registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

CMS ENERGY CORPORATION

Dated: April 28, 2026

By:

/s/ Rejji P. Hayes

Rejji P. Hayes

Executive Vice President and Chief Financial Officer

CONSUMERS ENERGY COMPANY

Dated: April 28, 2026

By:

/s/ Rejji P. Hayes

Rejji P. Hayes

Executive Vice President and Chief Financial Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2612873d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

CMS Energy Announces First Quarter Results

for 2026, Reaffirms 2026 Adjusted EPS Guidance

JACKSON, Mich., April 28, 2026 – CMS Energy

announced today reported earnings per share of $1.10 for the first quarter of 2026, compared to $1.01 per share for 2025. The company’s

adjusted earnings per share for the first quarter were $1.13, compared to $1.02 per share for 2025.

CMS Energy reaffirmed its 2026 adjusted earnings

guidance of $3.83 to $3.90 per share (*See below for important information about non-GAAP measures) and long-term adjusted EPS growth

of 6 to 8 percent, with continued confidence toward the high end.

“Strong execution in the first quarter has

positioned us well for the year ahead,” said Garrick Rochow, President and CEO of CMS Energy and Consumers Energy. “We’re

building momentum across our triple bottom line in support of customers, communities and investors.”

CMS Energy (NYSE: CMS) is a Michigan-based energy

provider featuring Consumers Energy as its primary business. It also owns and operates independent power generation businesses.

# # #

CMS

Energy will hold a webcast to discuss its 2026 first quarter results and provide a business and financial outlook on Tuesday, April 28

at 10:00 a.m. (EDT). To participate in the webcast, go to CMS Energy’s homepage (cmsenergy.com) and select “Events

and Presentations.”

Important

information for investors about non-GAAP measures and other disclosures.

This news

release contains non-Generally Accepted Accounting Principles (non-GAAP) measures, such as adjusted earnings. All references to net income

refer to net income available to common stockholders and references to earnings per share are on a diluted basis. Adjustments could include

items such as discontinued operations, asset sales, impairments, restructuring costs, business optimization initiative, major enterprise

resource planning software implementations, changes in accounting principles, voluntary separation program, changes in federal tax policy,

regulatory items from prior years, unrealized gains or losses from mark-to-market adjustments, recognized in net income related

to NorthStar Clean Energy's interest expense, or other items. Management views adjusted earnings as a key measure of the company's present

operating financial performance and uses adjusted earnings for external communications with analysts and investors. Internally, the company

uses adjusted earnings to measure and assess performance. Because the company is not able to estimate the impact of specific line items,

which have the potential to significantly impact, favorably or unfavorably, the company's reported earnings in future periods, the company

is not providing reported earnings guidance nor is it providing a reconciliation for the comparable future period earnings. The company's

adjusted earnings should be considered supplemental information to assist in understanding our business results, rather than as a substitute

for the reported earnings.

This news release contains

"forward-looking statements." The forward-looking statements are subject to risks and uncertainties that could cause CMS Energy's

and Consumers Energy's results to differ materially. All forward-looking statements should be considered in the context of the risk and

other factors detailed from time to time in CMS Energy's and Consumers Energy's Securities and Exchange Commission filings.

Investors and others should note that

CMS Energy routinely posts important information on its website and considers the Investor Relations section, www.cmsenergy.com/investor-relations,

a channel of distribution.

Media Contacts: Katie Carey, 517/740-1739

Investment Analyst Contact: Travis Uphaus, 517/817-9241

Page 1 of 3

CMS ENERGY CORPORATION

Consolidated Statements

of Income

(Unaudited)

In Millions, Except Per Share Amounts

Three Months Ended

3/31/26

3/31/25

Operating revenue

$ 2,730

$ 2,447

Operating expenses

2,240

1,953

Operating Income

490

494

Other income

Interest charges

203

186

Income Before Income Taxes

362

358

Income tax expense

Net Income

277

295

Loss attributable to noncontrolling interests

(63 )

(9 )

Net Income Attributable to CMS Energy

340

304

Preferred stock dividends

Net Income Available to Common Stockholders

$ 338

$ 302

Diluted Earnings Per Average Common Share

$ 1.10

$ 1.01

Page 2 of 3

CMS ENERGY CORPORATION

Summarized Consolidated Balance Sheets

(Unaudited)

In Millions

As of

3/31/26

12/31/25

Assets

Current assets

Cash and cash equivalents

$ 175

$ 509

Restricted cash and cash equivalents

106

Other current assets

2,762

2,857

Total current assets

3,025

3,472

Non-current assets

Plant, property, and equipment

31,533

30,680

Other non-current assets

5,727

5,789

Total Assets

$ 40,285

$ 39,941

Liabilities and Equity

Current liabilities (1)

$ 2,232

$ 2,592

Non-current liabilities (1)

8,924

8,740

Capitalization

Debt and finance leases (excluding securitization debt) (2)

18,538

18,313

Preferred stock and securities

224

Noncontrolling interests

585

567

Common stockholders' equity

9,242

8,920

Total capitalization (excluding securitization debt)

28,589

28,024

Securitization debt (2)

540

585

Total Liabilities and Equity

$ 40,285

$ 39,941

(1) Excludes debt and finance leases.

(2) Includes current and non-current portions.

CMS

ENERGY CORPORATION

Summarized

Consolidated Statements of Cash Flows

(Unaudited)

In Millions

Three Months Ended

3/31/26

3/31/25

Beginning of Period Cash and Cash Equivalents, Including Restricted Amounts

$ 615

$ 178

Net cash provided by operating activities

705

1,000

Net cash used in investing activities

(1,073 )

(918 )

Cash flows from operating and investing activities

(368 )

Net cash provided by financing activities

266

Total Cash Flows

$ (352 )

$ 348

End of Period Cash and Cash Equivalents, Including Restricted Amounts

$ 263

$ 526

Page 3 of 3

CMS ENERGY CORPORATION

Reconciliation of GAAP Net Income to Non-GAAP

Adjusted Net Income

(Unaudited)

In Millions,

Except Per Share Amounts

Three Months Ended

3/31/26

3/31/25

Net Income Available to Common Stockholders

$ 338

$ 302

Reconciling items:

Other exclusions from adjusted earnings**

Tax impact

(3 )

(1 )

Adjusted net income – non-GAAP

$ 346

$ 304

Average Common Shares Outstanding - Diluted

307.1

299.1

Diluted Earnings Per Average Common Share

Reported net income per share

$ 1.10

$ 1.01

Reconciling items:

Other exclusions from adjusted earnings**

0.04

0.01

Tax impact

(0.01 )

(*)

Adjusted net income per share – non-GAAP

$ 1.13

$ 1.02

* Less than $0.5 million or $0.01 per share.

** Includes major enterprise resource planning software implementations

and unrealized gains or losses from mark-to-market adjustments, recognized in net income related to NorthStar Clean Energy's interest

expense.

Management views adjusted (non-Generally Accepted Accounting Principles) earnings as a key measure of the Company's present operating financial performance and uses adjusted earnings for external communications with analysts and investors. Internally, the Company uses adjusted earnings to measure and assess performance. Adjustments could include items such as discontinued operations, asset sales, impairments, restructuring costs, business optimization initiative, major enterprise resource planning software implementations, changes in accounting principles, voluntary separation program, changes in federal and state tax policy, regulatory items from prior years, unrealized gains or losses from mark-to-market adjustments, recognized in net income related to NorthStar Clean Energy's interest expense, or other items. The adjusted earnings should be considered supplemental information to assist in understanding our business results, rather than as a substitute for reported earnings.

EX-99.2 — EXHIBIT 99.2

EX-99.2

Filename: tm2612873d1_ex99-2.htm · Sequence: 3

Exhibit 99.2

2026 First Quarter Results & Outlook April 28 , 2026

2 Enter “so what” if necessary – Century Gothic, Bold, Size 18 or smaller This presentation is made as of the date hereof and contains “forward - looking statements” as defined in Rule 3b - 6 of the Securit ies Exchange Act of 1934, Rule 175 of the Securities Act of 1933, and relevant legal decisions. The forward - looking statements are subject to risks and uncertainties. All forward - lo oking statements should be considered in the context of the risk and other factors detailed from time to time in CMS Energy’s and Consumers Energy’s Securities and Exchange Commissi on filings. Forward - looking statements should be read in conjunction with “FORWARD - LOOKING STATEMENTS AND INFORMATION” and “RISK FACTORS” sections of CMS Energy’s and Consumers Energy’s most recent Form 10 - K and as updated in reports CMS Energy and Consumers Energy file with the Securities and Exchange Commission. CMS Energy’s and Cons ume rs Energy’s “FORWARD - LOOKING STATEMENTS AND INFORMATION” and “RISK FACTORS” sections are incorporated herein by reference and discuss important factors th at could cause CMS Energy’s and Consumers Energy’s results to differ materially from those anticipated in such statements. CMS Energy and Consumers Energy undertake no ob ligation to update any of the information presented herein to reflect facts, events or circumstances after the date hereof. The presentation also includes non - GAAP measures when describing CMS Energy’s results of operations and financial performance. A reconciliation of each of these measures to the most directly comparable GAAP measure is included in the appendix and posted on our website at www.cmsenergy.com . Investors and others should note that CMS Energy routinely posts important information on its website and considers the Inves tor Relations section, www.cmsenergy.com/investor - relations , a channel of distribution. Presentation endnotes are included after the appendix. 2

3 Investment Thesis . . . . . . o ver two decades of industry - leading financial performance. Strong Cash Flow & Balance Sheet Attractive & Diversified Growth Long Capital Runway Top - Tier Regulatory Jurisdiction Affordability driven by the CE Way + Digital Long Capital Runway Top - Tier Regulatory Jurisdiction a Clean Energy Leader Presentation endnotes are included at the end of the presentation.

4 v Recent Electric Rate Order . . . . . . u nderscores support for reliability investments. Presentation endnotes are included at the end of the presentation. 2023 2024 2025 2026 Approved Requested ~52% ~54% ~60% ~ 66 % % Electric Approved a ($M) $287 $155 $160 $83 $255 $154 $328 b $217 b Customer Benefits: • Enhanced reliability • Accelerated vegetation management (from 7 - yr to 5 - yr cycle ) • Distribution system updates & grid hardening • Maintained affordability Deliberate Process S upportive energy policy & l egislation Productive pre - filings, approvals and mechanisms (e.g. REP, IRP, 5 - yr electric reliability roadmap, IRM) Strong testimony and business cases x x x Yields constructive outcomes Settled

5 Q2: File New Rate Case By Oct. 16th: Expected Order U - 21981 Michigan’s Strong Regulatory Environment . . . . . . provides constructive outcomes and forward - looking visibility. Electric Gas Supportive Energy Policy • Timely recovery of investments x Forward - looking test years/earn authorized ROEs x 10 - month rate cases x Monthly fuel adjustment trackers (PSCR/GCR) x Constructive ROEs • Supportive incentives enhanced w/ 2023 Michigan Energy Law x Energy efficiency incentives x FCM adder on PPAs • Appointed commissioners x Staggered 6 - year terms Electric Supply 2026 June : File IRP Presentation endnotes are included at the end of the presentation. Mar. 27 th : Order $217M a , 9.90 % ROE U - 21870 Highlights Electric Order a Constructive outcome with support for ~ 66 % of final ask x Staff Position Supportive of ~76% of $240M ask b & ~94% c gas infrastructure x REP Order Approval of an additional 8 GW of solar and 2.8 GW of wind x

6 Affordable Customer Bills . . . . . . through the CE Way, episodic cost savings, and energy waste reduction. Presentation endnotes are included at the end of the presentation. ~1% ~ 3% ~3½% ~5% 2014-2025 Latest Update Annual Electric & Gas Combined Residential Bill Growth b (CAGR) CMS 5 - yr Plan Avg. (2026 - 2030) CPI Energy Bills (Current) CPI Energy Bills (Historic) CMS ~2½% 5½% ~5% Consumers Energy Great Lakes Avg. National Avg. Annual Electric Residential Bill Growth a 2021 – 2025 (CAGR) ~ 2½ % ~ 1 % ~3%

7 Expansive Economic Development Efforts . . . . . . drive diversified growth, including data centers, across Michigan. Electric Gas Combined 2023 New Load 2024 New Load 2025 New Load • Adding ~130 jobs & $1.3B investment in Michigan MI Potash & Salt Co. Hemlock Semi - conductor Switch Data Center Ford Blue Oval (2% – 3%/ yr a ) Corning Inc. ~660 MW b ~100 MW b signed in 2025 450 MW Online b ~110 MW b signed YTD Sales Growth Cities on the Rise : #1 Grand Rapids, MI – as ranked by Linkedin 2025 U.S. State Ranking: #6 for B usiness – as ranked by CNBC 2025 U.S. State Ranking: #4 for C ost of Doing B usiness – as ranked by CNBC 2025 U.S. State Ranking : Top 5 for Workforce Development – as ranked by Site Selection Magazine 2026 U.S. State Ranking : #3 for Manufacturing & Semiconductor Jobs – as ranked by Business Facilities 2026 • H igh - grade producer of potash for fertilizer & industrial use Includes: Presentation endnotes are included after the appendix.

8 Economic Development Pipeline . . . . . . drives numerous benefits. ~9 GW Pipeline Semi - conductor Advanced Final Stages 4 – 5 GW 1½ – 2 GW Qualified Data Centers Manufacturing ~1 – 2 GW • +1 GW of new load reduces the average customer 5 - yr rate CAGR by ~2% • +1 GW of new load provides $2B – $5B capital opportunity Progress Made: x Commercial agreement on EFA terms x Commercial agreement on rate contract x Continued community engagement Large Load Sensitivities: Announced on Q2 2025 Call

9 Commentary Amount Financial Results & Outlook . . . . . . reflect strong growth. Long - Term Outlook 2026 Full - Year Outlook Q1 2026 Results $1.13 Adjusted EPS Toward the high end Up 11¢ $3.06 – $3.12 $2.28 Adjusted EPS Guidance Annual Dividend Per Share (DPS) Toward the high end Consistent DPS growth Up $4 vs. prior plan 6% to 8%+ Adjusted EPS Growth Dividend Payout Ratio Utility Capital Plan ($B) a $24 $3.83 – $3.90 Executing on Plan ~55% payout over time Presentation endnotes are included after the appendix. 6% to 8%

10 2025 Weather Rates, Renewables & Investment Reliability, Storms incl. Productivity Parent Financing, Tax & Other Normal Weather Rates, Renewables & Investment Reliability, Storms incl. Productivity Parent Financing, Tax & Other 2026 2026 Adjusted EPS . . . . . . continued confidence toward the high end. First Three Months 11¢ Nine Months To - Go 11¢ – 18 ¢ Presentation endnotes are included after the appendix. $3.83 – $3.90 1¢ $3.61 11¢ 4 ¢ (23)¢ 24¢ 6 ¢ – 13 ¢ (5)¢ 4 ¢ First Quarter $1. 13 First Quarter $1.02 2026 2025 $1.10 $1.01 Reported EPS 0.03 0.01 Adjustments a $ 1.13 $ 1.02 Adjusted EPS a First Quarter EPS Results

11 Actual Plan ($M) ($M) Consumers Energy: -- $1,735 First Mortgage Bonds CMS Energy: $1,000 $1,000 Nov. 2025 Convert @ 3.125% $142 ~$700 Planned Equity Retirements (incl. term loans): -- $115 b Consumers Energy -- $300 CMS Energy Existing Facilities $1,100M (Nov - 2030) $750M (Nov - 2030) $300M (Nov - 2028) Consumers Energy CMS Energy Financings 2026 Planned Financings . . . . . . fund customer investments and provide ample liquidity. Presentation endnotes are included after the appendix. ~$ 2.4 B a of net liquidity x ~$495M (incl. $142M) priced favorably to Plan

12 . Strong Balance Sheet . . . . . . m aintains credit metrics and solid investment - grade ratings. Consumers Energy CMS Energy Senior Secured Commercial Paper Outlook Senior Unsecured Junior Subordinated Outlook Last Review A1 P - 2 Negative Baa2 Baa3 Stable Mar. 2026 A+ F - 2 Stable BBB BB+ Stable Mar. 2026 S&P Moody’s Fitch x Forward - looking recovery x Constructive rate construct x Strong operating cash flow generation x 100% fixed rate debt x Hybrid debt (w/ equity credit) x Limited near - term maturities Key Strengths A A - 2 Stable BBB BBB - Stable Dec . 2025

13 Recession Industry - Leading Financial Performance . . . . . . for over two decades, regardless of conditions. 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026+ Recession Adjusted EPS Dividend Weather Help Hurt Cold winter Mild summer Warm winter Hot summer Mild summer Cold winter Polar vortex Mild summer Warm winter Hot summer Hot summer Summer - less Storms Hot summer Storms Hot summer Warm winter Warm winter Mild winter Governor (D) Governor (R) Governor (D) Commission (D) Commission (D) Commission (R) Commission (I) Commission (D) Dave Joos John Russell Patti Poppe Ken Whipple Recession/ Pandemic Garrick Rochow Mild w/ storms Hot summer Mild w/ storms Hot w/ s torms +6% to +8% Adjusted EPS Growth Low double - digit TSR

14 14 Q&A Thank You!

15 Appendix

16 Michigan’s Gubernatorial Candidates . . . . . . a re engaged with CMS Energy on energy a ffordability solutions. John James (R) U.S. Representative (District 10) Jocelyn Benson (D) Secretary of State Mike Duggan (I) Former Detroit Mayor Gubernatorial Race Focus • Growth enabler in the state • Energy ready sites • Large load tariff • Legislative reform • State personal property tax reform • Reducing regulatory burdens on businesses that drive costs • Expansion of bill assistance programs • Including energy efficiency programs and support for vulnerable customers Company Solutions • Economic Development • Affordability: groceries, healthcare, insurance, energy costs, housing & childcare • Education Policy • Public Safety

17 Rate Case Outcomes . . . . . . highlight consistent and constructive regulatory construct. Presentation endnotes are included at the end of the presentation. % Electric Approved a ($M) % Gas Approved a ($M) 2022 2023 2024 2025 Approved Requested ~56% ~54% ~75% $175 Settled $95 $113 $63 $208 $157 Settled v 2023 2024 2025 2026 Approved Requested ~52% ~54% ~60% ~66% $287 Settled $155 $160 $83 $255 $154 $328 b $217 b ~73% $233 $170 Settled

18 36% 36% 28% Updated Customer Investment Plan . . . . . . delivers benefits for customers and investors. New Utility Investment Plan Rate Base Growth Presentation endnotes are included after the appendix. E lectric Generation Electric Distribution & Other Gas Utility $24B ’26 – ’30 72% Electric utility investment x ~$50M pre - tax for FCM by 2030 with additional upside x ~$65M/yr pre - tax for Energy Efficiency incentive x NorthStar – DIG re - contracting opportunities Non - Rate Base Earnings b 2025 2030 $28.4B $ 46 .8B 10½%/ yr a Up $4B from prior plan

19 2026 Sensitivities . . . . . . r eflect effective risk mitigation. Presentation endnotes are included after the appendix. Full - Year Impact OCF Adj. EPS Sensitivity ($M) 33 18 + + ( ¢) 8 4 + + 1% 1 + + Sales a Electric (~38,000 GWh) Gas (~311 Bcf) 60 + 0 + 50 ¢ + Gas Prices ($/Bcf) 9 7 + + 2 2 + + 10 bps 10 + + Utility Earned ROE Electric Gas 4 1 50 bps + Interest Rates 0 4 100 bps + Effective Tax Rate (21%) + + + + Electric Residential Commercial Industrial 5 ¢ 2 ½ 3¢ (1% Full Year in Volume) 2025 Adj. EPS Sensitivities Gas ½ 1 < ½

20 Endnotes

21 Presentation Endnotes Slide 3: a UBS Research, 2025 state rankings and D.C. Slide 4: a All amounts exclude deferrals including 2026 b Represents 2026 company revised position of $387M and order of $277M excluding $24M deferral surcharge, ~$22M vegetation management and ~$15M S4HANA deferrals and ~$60M demand response revenue revision Slide 5: a Excludes deferrals; Represents 2026 company revised position of $387M and order of $277M excluding $24M deferral surcharge, ~$22M vege ta tion management and ~$15M S4HANA deferrals and ~$60M demand response revenue revision b Represents MPSC Staff position of $183M vs. Company position of $240M c Represents MPSC Staff position on investment of $101M vs. Company position of $108M Slide 6: a Source : EIA form 861M; residential electric bill change; 12 - month average Jan - Dec 2025 vs 2021 b Source : Historical 2014 - 2025 CAGR, Bls.gov CPI energy bills; 12 - months ended as of October 2025; Source: Current: Bls.gov CPI energy bills; 2026 March vs. March 2025 Slide 7: a Annual sales growth over 5 - year plan through 2030, CAGR b Anticipated load at full ramp up Slide 9: a $24B utility capital investment plan (2026 - 2030), up $4B from prior plan (2025 - 2029) Slide 10: a Adjusted EPS Slide 11 : a $2,281M in unreserved revolvers + $75M of unrestricted cash; excludes cash unavailable for debt retirement, such as cash held at NorthStar b Excludes securitization debt retirements of $121M Slide 17: a Excludes deferrals b Electric represents 2026 company revised position of $387M and order of $277M excluding $24M deferral surcharge, ~$22M vegetation management and ~$15M S4HANA deferrals and ~$60M demand response revenue revision Slide 18: a Assumes $28.4B rate base in 2025, $46.8B in 2030, CAGR b Over plan period years 2026 - 2030 Slide 19: a Reflects 2026 sales forecast; weather - normalized 21

22 GAAP Reconciliation CMS Energy provides historical financial results on both a reported (GAAP) and adjusted (non - GAAP) basis and provides forward - lo oking guidance on an adjusted basis. During an oral presentation, references to “earnings” are on an adjusted basis. All references to net income ref er to net income available to common stockholders and references to earnings per share are on a diluted basis. Adjustments could include items such as disc ont inued operations, asset sales, impairments, restructuring costs, business optimization initiative, major enterprise resource planning software implementatio ns, changes in accounting principles, voluntary separation program, changes in federal and state tax policy, regulatory items from prior years, unrealized gains or lo sses from mark - to - market adjustments, recognized in net income related to NorthStar Clean Energy's interest expense, or other items. Management views adj usted earnings as a key measure of the company’s present operating financial performance and uses adjusted earnings for external communications with ana lysts and investors. Internally, the company uses adjusted earnings to measure and assess performance. Because the company is not able to estimate th e impact of specific line items, which have the potential to significantly impact, favorably or unfavorably, the company's reported earnings in future per iods, the company is not providing reported earnings guidance nor is it providing a reconciliation for the comparable future period earnings. The adju ste d earnings should be considered supplemental information to assist in understanding our business results, rather than as a substitute for the reported earnin gs. 22

23 CMS ENERGY CORPORATION Reconciliation of GAAP Net Income to Non - GAAP Adjusted Net Income (Unaudited) In Millions, Except Per Share Amounts Three Months Ended 3/31/25 3/31/26 302 $ 338 $ Net Income Available to Common Stockholders Reconciling items: 3 11 Other exclusions from adjusted earnings** (1) (3) Tax impact 304 $ 346 $ Adjusted net income – non - GAAP 299.1 307.1 Average Common Shares Outstanding - Diluted Diluted Earnings Per Average Common Share 1.01 $ 1.10 $ Reported net income per share Reconciling items: 0.01 0.04 Other exclusions from adjusted earnings** (*) (0.01) Tax impact 1.02 $ 1.13 $ Adjusted net income per share – non - GAAP Less than $0.5 million or $0.01 per share. * Includes major enterprise resource planning software implementations and unrealized gains or losses from mark - to - market adjustme nts, recognized in net income related to NorthStar Clean Energy's interest expense. **

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