CMS insider buying and SEC filings, explained
CMS Energy Corp. · CIK 811156
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- NYSE, NYSE, NYSE, NYSE, NYSE
- Industry (SIC)
- Electric & Other Services Combined
- State of incorporation
- MI
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$168K
Insiders who bought
2
Sold (not marked 10b5-1)
$2.1M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jul 31, 2026 | Purchase (code P) | Srikanth Maddipati (CFO) bought 200 shares at $72.46 ($14K), reported as a purchase (code P). Holdings up 1% to 34,895 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 3, 2026 |
| May 26, 2026 | Sale | Brandon J. Hofmeister (Senior Vice President) sold 3,000 shares at $74.31 ($223K). Holdings down 4% to 67,111 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 27, 2026 |
| Mar 2, 2026 | Sale | Scott B McIntosh (VP, Controller, CAO) sold 1,750 shares at $78.21 ($137K). Holdings down 7% to 24,223 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 4, 2026 |
| Feb 27, 2026 | Sale | Brandon J. Hofmeister (Senior Vice President) sold 4,000 shares at about $78.24 ($313K). Holdings down 5% to 70,670 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
| Feb 25, 2026 | Purchase (code P) | Diane Leopold (Director) bought 2,000 shares at $76.70 ($153K), reported as a purchase (code P). Holdings up 260% to 2,769 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 27, 2026 |
| Feb 20, 2026 | Sale | John G. Russell (Director) sold 14,914 shares at about $75.76 ($1.1M). Holdings down 10% to 131,568 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 23, 2026 |
| Nov 3, 2025 | Sale | Brandon J. Hofmeister (Senior Vice President) sold 4,000 shares at about $72.47 ($290K). Holdings down 6% to 64,490 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 4, 2025 |
36 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 12:31 PM ET 8-K | Other event (Item 8.01) | SEC filing | |
| Oct 27, 2026, 6:39 AM ET 8-K | Earnings released (Item 2.02) Reg FD disclosure (Item 7.01) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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