---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-013521"
form_type: "8-K"
ticker: "CMS"
cik: "0000811156"
company_name: "CMS ENERGY CORP"
filed_at: "2026-02-11T23:59:59+00:00"
generated_at: "2026-05-16T03:27:22.535117+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# CMS Energy updates ATM equity program; $492.3M shares remain available for sale

## Summary
- Filed updated prospectus supplement for at-the-market offering of up to $1B in common stock.
- As of Feb 11, 2026, $507.7M already sold under previous supplement; $492.3M remain available.
- Shares may be sold via forward sale agreements; CMS expects to receive proceeds only upon physical settlement.
- Offering is part of ongoing capital management; CMS has no obligation to sell remaining shares.

## SEC filing metadata
- accession: 0001104659-26-013521
- form_type: 8-K
- ticker: CMS
- cik: 0000811156
- company_name: CMS ENERGY CORP
- filed_at: 2026-02-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/811156/000110465926013521/0001104659-26-013521-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/811156/000110465926013521/tm265757d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-013521
- JSON: https://secwatch.observer/filing/0001104659-26-013521.json
- Plain text: https://secwatch.observer/filing/0001104659-26-013521.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.