Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000811156-26-000004
Filing Date
2026-02-10
Accepted
2026-02-10 11:30:40
Documents
171
Period of Report
2025-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K (CMS ENERGY AND CONSUMERS) cms-20251231.htm   iXBRL 10-K 5959118
7 EXHIBIT 21.1 - SUBSIDIARIES (CMS ENERGY AND CONSUMERS) cms10k20251231_ex21-1.htm EX-21.1 79653
8 EXHIBIT 23.1 - CONSENT (CMS ENERGY) cms10k20251231_ex23-1.htm EX-23.1 2121
9 EXHIBIT 23.2 - CONSENT (CONSUMERS) cms10k20251231_ex23-2.htm EX-23.2 2038
10 EXHIBIT 31.1 - CEO 302 CERTIFICATION (CMS ENERGY) cms10k20251231_ex31-1.htm EX-31.1 10143
11 EXHIBIT 31.2 - CFO 302 CERTIFICATION (CMS ENERGY) cms10k20251231_ex31-2.htm EX-31.2 10148
12 EXHIBIT 31.3 - CEO 302 CERTIFICATION (CONSUMERS) cms10k20251231_ex31-3.htm EX-31.3 10141
13 EXHIBIT 31.4 - CFO 302 CERTIFICATION (CONSUMERS) cms10k20251231_ex31-4.htm EX-31.4 10142
14 EXHIBIT 32.1 - 906 CERTIFICATION (CMS ENERGY) cms10k20251231_ex32-1.htm EX-32.1 7352
15 EXHIBIT 32.2 - 906 CERTIFICATION (CONSUMERS) cms10k20251231_ex32-2.htm EX-32.2 7595
16 EX-4.1.KK - 155TH SUPPLEMENTAL INDENTURE cms10k20251231_ex41kk.htm EX-4.1KK 210371
17 GRAPHIC - CMS LOGO cms-20251231_g1.jpg GRAPHIC 54700
18 GRAPHIC - CE LOGO cms-20251231_g2.jpg GRAPHIC 190141
19 GRAPHIC - SERVICE TERRITORY MAP cms-20251231_g3.jpg GRAPHIC 817686
20 GRAPHIC - CE ELECTRIC UTILITY OPERATING REVENUE cms-20251231_g4.jpg GRAPHIC 52207
21 GRAPHIC - CE MONTHLY WEATHER-NORMALIZED ELECTRIC DELIVERIES cms-20251231_g5.jpg GRAPHIC 126854
22 GRAPHIC - CE GAS UTILITY OPERATING REVENUE cms-20251231_g6.jpg GRAPHIC 57454
23 GRAPHIC - CE MONTHLY WEATHER-NORMALIZED GAS DELIVERIES cms-20251231_g7.jpg GRAPHIC 102145
24 GRAPHIC - GAS SUPPLY DELIVERED TO CE GCC&GCR CUSTOMERS cms-20251231_g8.jpg GRAPHIC 56068
25 GRAPHIC - COMPARISON OF FIVE-YEAR CUMULATIVE TOTAL RETURN cms-20251231_g9.jpg GRAPHIC 98829
26 GRAPHIC - STRATEGY cms-20251231_g10.jpg GRAPHIC 459305
27 GRAPHIC - CE EMISSIONS REDUCTIONS cms-20251231_g11.jpg GRAPHIC 124765
28 GRAPHIC - CE PLANNED CAPITAL EXPENDITURES cms-20251231_g12.jpg GRAPHIC 60413
29 GRAPHIC - CE CEP COMMITTED CAPACITY ADDITIONS cms-20251231_g13.jpg GRAPHIC 65154
  Complete submission text file 0000811156-26-000004.txt   45997597

Data Files

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174 EXTRACTED XBRL INSTANCE DOCUMENT cms-20251231_htm.xml XML 11520453
Mailing Address ONE ENERGY PLAZA JACKSON MI 49201
Business Address ONE ENERGY PLAZA JACKSON MI 49201 5177880550
CONSUMERS ENERGY CO (Filer) CIK: 0000201533 (see all company filings)

EIN.: 380442310 | State of Incorp.: MI | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-05611 | Film No.: 26614384
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)

Mailing Address ONE ENERGY PLAZA JACKSON MI 49201
Business Address ONE ENERGY PLAZA JACKSON MI 49201 5177880550
CMS ENERGY CORP (Filer) CIK: 0000811156 (see all company filings)

EIN.: 382726431 | State of Incorp.: MI | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-09513 | Film No.: 26614383
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)