CMS (CMS Energy Corporation)
Insider Trading Activity
Every open-market purchase and sale reported by CMS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-03 | SRIKANTH MADDIPATI | EVP/CFO | Buy | — | — |
| 2026-06-16 | SRIKANTH MADDIPATI | EVP/CFO | A | — | — |
| 2026-05-27 | Brandon J. Hofmeister | Senior Vice President | Sell | — | — |
| 2026-05-11 | Deborah H Butler | Director | A | — | — |
| 2026-05-11 | Diane Leopold | Director | A | — | — |
| 2026-05-11 | RALPH IZZO | Director | A | — | — |
| 2026-05-11 | SUZANNE F. SHANK | Director | A | — | — |
| 2026-05-11 | Myrna Soto | Director | A | — | — |
| 2026-05-11 | John G Sznewajs | Director | A | — | — |
| 2026-05-11 | Richard Patrick Keyes | Director | A | — | — |
| 2026-05-11 | JOHN G RUSSELL | Director | A | — | — |
| 2026-05-11 | RONALD J TANSKI | Director | A | — | — |
| 2026-05-11 | Laura Wright | Director | A | — | — |
| 2026-03-30 | Garrick J Rochow | President and CEO | MIXED | — | — |
| 2026-03-30 | Rejji P Hayes | EVP/CFO | MIXED | — | — |
| 2026-03-30 | Brandon J. Hofmeister | Senior Vice President | MIXED | — | — |
| 2026-03-30 | Shaun M Johnson | Executive Vice President & CLO | MIXED | — | — |
| 2026-03-30 | Tonya L Berry | Executive Vice President & COO | MIXED | — | — |
| 2026-03-30 | Lauren Y Snyder | Senior Vice President | MIXED | — | — |
| 2026-03-30 | Scott B McIntosh | VP, Controller, CAO | MIXED | — | — |
| 2026-03-04 | Scott B McIntosh | VP, Controller, CAO | Sell | — | — |
| 2026-03-02 | Brandon J. Hofmeister | Senior Vice President | MIXED | — | — |
| 2026-02-27 | Diane Leopold | Director | Buy | — | — |
| 2026-02-23 | JOHN G RUSSELL | Director | Sell | — | — |
| 2026-02-23 | Richard Patrick Keyes | Director | A | — | — |
| 2026-02-23 | Diane Leopold | Director | A | — | — |
| 2026-02-02 | Garrick J Rochow | President and CEO | A | — | — |
| 2026-02-02 | Rejji P Hayes | EVP/CFO | A | — | — |
| 2026-02-02 | Tonya L Berry | Executive Vice President & COO | A | — | — |
| 2026-02-02 | Shaun M Johnson | Executive Vice President & CLO | A | — | — |
| 2026-02-02 | Brandon J. Hofmeister | Senior Vice President | A | — | — |
| 2026-02-02 | Shannon Thomas | Senior Vice President | A | — | — |
| 2026-02-02 | Lauren Y Snyder | Senior Vice President | A | — | — |
| 2026-02-02 | Scott B McIntosh | VP, Controller, CAO | A | — | — |
| 2026-01-28 | Garrick J Rochow | President and CEO | MIXED | — | — |
| 2026-01-28 | Rejji P Hayes | EVP/CFO | MIXED | — | — |
| 2026-01-28 | Tonya L Berry | Executive Vice President & COO | MIXED | — | — |
| 2026-01-28 | Shaun M Johnson | Executive Vice President & CLO | MIXED | — | — |
| 2026-01-28 | Brandon J. Hofmeister | Senior Vice President | MIXED | — | — |
| 2026-01-28 | Lauren Y Snyder | Senior Vice President | MIXED | — | — |
| 2026-01-28 | Scott B McIntosh | VP, Controller, CAO | MIXED | — | — |
| 2025-11-04 | Brandon J. Hofmeister | Senior Vice President | Sell | — | — |
| 2025-09-11 | Shaun M Johnson | SVP and General Counsel | G | — | — |
| 2025-09-08 | Lauren Y Snyder | Senior Vice President | Sell | — | — |
| 2025-08-12 | Brandon J. Hofmeister | Senior Vice President | Sell | — | — |
| 2025-05-08 | Brandon J. Hofmeister | Senior Vice President | Sell | — | — |
| 2025-05-06 | RONALD J TANSKI | Director | A | — | — |
| 2025-05-06 | John G Sznewajs | Director | A | — | — |
| 2025-05-06 | JOHN G RUSSELL | Director | A | — | — |
| 2025-05-06 | KURT L DARROW | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | President and CEO | 637,918 | — |
| — | President and CEO | 465,186 | — |
| — | Director | 373,243 | — |
| — | EVP/CFO | 276,825 | — |
| — | Vice Chairman | 189,171 | — |
| — | Senior Vice President | 148,622 | — |
| — | Director | 138,130 | — |
| — | — | 130,131 | — |
| — | Senior Vice President | 125,480 | — |
| — | SVP and General Counsel | 121,211 | — |
| — | Senior Vice President | 118,922 | — |
| — | Executive Vice President & CLO | 109,325 | — |
| — | SVP & Chief Legal Counsel | 108,239 | — |
| — | Senior Vice President | 94,490 | — |
| — | Senior Vice President | 84,348 | — |
| — | Director | 81,334 | — |
| — | VP of Principal Subsidiary | 72,990 | — |
| — | Executive Vice President & COO | 70,105 | — |
| — | Senior Vice President | 67,114 | — |
| — | Senior Vice President | 65,528 | — |
| — | Senior Vice President | 55,811 | — |
| — | Director | 53,973 | — |
| — | Director | 49,607 | — |
| — | Director | 48,100 | — |
| — | Director | 47,117 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CMS quote page; the site-wide leaderboard is on the insider transactions hub.