CMS Energy (CMS) insider buying and selling
Every Table I transaction reported by directors and officers of S&P 500 companies on SEC Form 4 filings (2 business days to file): each row labeled with its official transaction code, nothing filtered out beforehand.
Open-market purchases (code P) are the rare signal, in green; sales (code S) are common and often pre-scheduled (10b5-1). Table II (derivatives) is not included: its prices are exercise prices, not market values. Guide: insider buying.
| Date | Ticker | Insider | Role | Shares | Price | Amount | % of stake | Type / filing |
|---|
Download these transactions as CSV No account, no sign-up. The data is public: it comes from SEC Form 4 filings.
CMS Energy Corporation (CMS) insider buying and selling: 2 purchases, 6 sales
60 Form 4 Table I transactions filed with the SEC by CMS Energy Corporation insiders between 2025-09-08 and 2026-08-03 (15-month history): 2 open-market purchases and 6 sales, plus 52 transactions under other Form 4 codes, broken down one by one below. The largest open-market trade is a sale of $1.1M by Russell John G on 2026-02-20.
CMS Energy insider buying and selling over the last 12 months
Between Oct 21, 2025 and Oct 20, 2026, CMS Energy insiders filed 2 purchases worth $168k and 5 sales worth $2.1M on the open market. The net balance is on the sell side: $1.9M more sold than bought.
The biggest buyer was Leopold Diane (Director): $153k in 1 purchase, out of 2 different buyers. The biggest seller was Russell John G (Director): $1.1M in 1 sale, out of 3 different sellers.
The largest trade of the period was a sale of $1.1M on Feb 20, 2026, by Russell John G (Director). Form 4 on sec.gov (0001180661-26-000004).
None of the 5 sales carries the 10b5-1 plan flag on the Form 4 (sales scheduled months ahead).
The last three months show 1 purchase and 0 sales, against 0 and 1 in the three before. The latest purchase is from Jul 31, 2026; the latest sale from May 26, 2026.
Against its sector (Utilities, 31 companies with an insider page on this site), over the same dates the median is 5 sales and 0 purchases on the open market. CMS Energy has more sales than 14 of the other 30, ranks 16 of 31 by net dollars sold, and 11 of the 31 have at least one purchase, CMS Energy included.
The 20 most important trades
The 2 open-market purchases first, then the rest, each type from largest to smallest. The full history is in the tool above, already searched.
See all 60 CMS trades in the full history →
| Trade date | Filed | Insider | Role | Amount | Code | Filing |
|---|---|---|---|---|---|---|
| 2026-02-25 | 2026-02-27 | Leopold Diane | Director | $153k | P — Open-market purchase | SEC |
| 2026-07-31 | 2026-08-03 | Maddipati Srikanth | EVP/CFO | $14k | P — Open-market purchase | SEC |
| 2026-02-20 | 2026-02-23 | Russell John G | Director | $1.1M | S — Open-market saleForm 4 footnoteF1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.75 to $75.76, inclusive. The reporting person undertakes to provide to CMS Energy Corporation ("CMS"), any security holder of CMS, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. | SEC |
| 2026-02-27 | 2026-03-02 | Hofmeister Brandon J. | Senior Vice President | $313k | S — Open-market saleForm 4 footnoteF1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.23 to $78.26, inclusive. The reporting person undertakes to provide to CMS Energy Corporation ("CMS"), any security holder of CMS, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4. | SEC |
| 2025-11-03 | 2025-11-04 | Hofmeister Brandon J. | Senior Vice President | $290k | S — Open-market saleForm 4 footnoteF1 The total holdings reflect an adjustment of 454 additional shares of Common Stock of CMS acquired as a result of dividend reinvestment or equivalents pursuant to the Restricted Stock awards granted in accordance with the provisions of the CMS Performance Incentive Stock Plan. | SEC |
| 2026-05-26 | 2026-05-27 | Hofmeister Brandon J. | Senior Vice President | $223k | S — Open-market sale | SEC |
| 2025-09-05 | 2025-09-08 | Snyder Lauren Y | Senior Vice President | $158k | S — Open-market saleForm 4 footnoteF1 The total holdings reflect an adjustment of 81 additional shares of Common Stock of CMS acquired as a result of dividend reinvestment or equivalents pursuant to the Restricted Stock awards granted in accordance with the provisions of the CMS Performance Incentive Stock Plan. | SEC |
| 2026-03-02 | 2026-03-04 | Mcintosh Scott B | VP, Controller, CAO | $137k | S — Open-market saleForm 4 footnoteF1 The total holdings reflect an adjustment of 123 additional shares of Common Stock of CMS acquired as a result of dividend reinvestment or equivalents pursuant to the Restricted Stock awards granted in accordance with the provisions of the CMS Performance Incentive Stock Plan. | SEC |
| 2026-01-26 | 2026-01-28 | Rochow Garrick J | President and CEO | $2.0M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Rochow Garrick J | President and CEO | $2.0M | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-01-26 | 2026-01-28 | Hayes Rejji P | EVP/CFO | $656k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Hayes Rejji P | EVP/CFO | $633k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-01-26 | 2026-01-28 | Johnson Shaun M | Executive Vice President & CLO | $345k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Johnson Shaun M | Executive Vice President & CLO | $329k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-01-26 | 2026-01-28 | Hofmeister Brandon J. | Senior Vice President | $302k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Hofmeister Brandon J. | Senior Vice President | $287k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-01-26 | 2026-01-28 | Berry Tonya L | Executive Vice President & COO | $214k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Berry Tonya L | Executive Vice President & COO | $202k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-01-26 | 2026-01-28 | Mcintosh Scott B | VP, Controller, CAO | $101k | F — Tax withholding (shares surrendered for taxes) | SEC |
| 2026-03-26 | 2026-03-30 | Mcintosh Scott B | VP, Controller, CAO | $91k | F — Tax withholding (shares surrendered for taxes) | SEC |
The period balance: money in, money out
Across the Form 4 filings submitted between Sep 8, 2025 and Aug 3, 2026, CMS Energy Corporation open-market activity adds up to 2 purchases worth $168k and 6 sales worth $2.3M. The net balance is $2.1M on the sell side.
Only codes P and S count, where an insider puts in or takes out their own money. A selling balance like CMS Energy Corporation's is the norm in the S&P 500, where much of the pay comes as stock. It is not a recommendation to buy or sell: it is what was filed.
Every transaction, code by code
| Code | What it means | Trades | Reported amount |
|---|---|---|---|
| A | Grant or award | 35 | $0 |
| F | Tax withholding (shares surrendered for taxes) | 14 | $7.3M |
| S | Open-market sale | 6 | $2.3M |
| G | Gift | 3 | $0 |
| P | Open-market purchase | 2 | $168k |
| Total | Everything filed in the period | 60 | $9.7M |
38 of the 60 rows carry no usable amount on the Form 4: they count as trades and add $0. The code labels come from the SEC index.
Who has traded
Over the 15 months of history, 19 distinct people or entities have filed CMS Energy Corporation transactions: 2 bought on the open market and 4 sold. Counted by CIK, the fixed number the SEC gives each filer, and not by name, which each filer types their own way.
| Filer | Role | Transactions | Bought (count) | Sold (count) | Last filed |
|---|---|---|---|---|---|
| Russell John G | Director | 2 | — | $1.1M (1) | 2026-05-11 |
| Hofmeister Brandon J. | Senior Vice President | 10 | — | $826k (3) | 2026-05-27 |
| Snyder Lauren Y | Senior Vice President | 6 | — | $158k (1) | 2026-03-30 |
| Leopold Diane | Director | 3 | $153k (1) | — | 2026-05-11 |
| Mcintosh Scott B | VP, Controller, CAO | 6 | — | $137k (1) | 2026-03-30 |
| Maddipati Srikanth | EVP/CFO | 2 | $14k (1) | — | 2026-08-03 |
| Johnson Shaun M | Executive Vice President & CLO | 6 | — | — | 2026-03-30 |
| Berry Tonya L | Executive Vice President & COO | 5 | — | — | 2026-03-30 |
Shown here are the 8 who moved the most money, out of 19. The rest are in the full history, one link above. The name links to all their trades, in any company. "Transactions" counts any code; the money, open market only. Role: from their latest filing.
Month by month
By the month the trade was executed, not the month it was filed; months with no trades show zero. The busiest month was Feb 2026: 1 purchase and 2 sales, worth $1.6M. 9 of the 15 months have none.
| Month | Purchases | Amount | Sales | Amount |
|---|---|---|---|---|
| Aug 2025 | 0 | $0 | 0 | $0 |
| Sep 2025 | 0 | $0 | 1 | $158k |
| Oct 2025 | 0 | $0 | 0 | $0 |
| Nov 2025 | 0 | $0 | 1 | $290k |
| Dec 2025 | 0 | $0 | 0 | $0 |
| Jan 2026 | 0 | $0 | 0 | $0 |
| Feb 2026 | 1 | $153k | 2 | $1.4M |
| Mar 2026 | 0 | $0 | 1 | $137k |
| Apr 2026 | 0 | $0 | 0 | $0 |
| May 2026 | 0 | $0 | 1 | $223k |
| Jun 2026 | 0 | $0 | 0 | $0 |
| Jul 2026 | 1 | $14k | 0 | $0 |
| Aug 2026 | 0 | $0 | 0 | $0 |
| Sep 2026 | 0 | $0 | 0 | $0 |
| Oct 2026 | 0 | $0 | 0 | $0 |
The last month may be partial: a Form 4 is filed up to two business days later. The table does not say whether the pattern is good or bad; it says when it happened.
CMS Energy Corporation (CMS) analysis page →
Other Utilities companies with insider trades
All 500 are listed in the section index →
Which insiders are buying their own company stock →
How to read this data
None of the 6 sales in the table is flagged as scheduled (10b5-1 plan), the kind signed months ahead and executed automatically. CMS Energy's 2 open-market purchases (code P) are the rare signal: insiders are already paid in stock, so buying more means putting in their own money. The latest filing is from Aug 3, 2026, and a Form 4 arrives up to two business days after the trade.
5 of the 20 rows in the table carry footnotes from the Form 4 itself, folded into the code column and copied verbatim; a row with no footnote means the filing has none.
Guide: Insider buying · all guides
What is behind these trades
The concepts on this page, explained from scratch in the Academy. Free, no account.
- What the efficiency hypothesis says and what it does NOT sayIf an insider's purchase is public and anyone can read it, is there any information left in it? That is the exact question that brings people here.
- Who really moves the market: the types of investorWho sits on the other side of each order, and where a company's own insiders fit among them.
- Supply, demand and price: why it rises and falls constantlyHow a piece of news ends up inside the price, and why the reaction to a filed sale is rarely the one you would expect.
Source: SEC EDGAR Form 4. This is a list of public facts, not financial advice or a recommendation to buy or sell.