CMS · Insider Trading

CMS Energy Corporation

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.

Form 4 Filings
50
most recent
Open-Market Buys
2
code P
Sales
7
code S
Reporting Insiders
22
current holders
CMS — Recent Form 4 Transactions (latest 2026-08-03)
FiledInsiderRole TypeSharesValue
2026-08-03 Srikanth Maddipati EVP/CFO Buy +200 +$14.49K
2026-06-16 Srikanth Maddipati EVP/CFO A +10,184 —
2026-05-27 Brandon J. Hofmeister Senior Vice President Sell −3,000 −$222.93K
2026-05-11 Deborah H Butler Director A +2,411 —
2026-05-11 Diane Leopold Director A +2,411 —
2026-05-11 Ralph Izzo Director A +2,411 —
2026-05-11 Suzanne F. Shank Director A +2,411 —
2026-05-11 Myrna Soto Director A +2,411 —
2026-05-11 John G Sznewajs Director A +2,411 —
2026-05-11 Richard Patrick Keyes Director A +2,411 —
2026-05-11 John G Russell Director A +2,411 —
2026-05-11 Ronald J Tanski Director A +2,411 —
2026-05-11 Laura Wright Director A +2,411 —
2026-03-30 Garrick J Rochow President and CEO MIXED −6,152 −$1.97M
2026-03-30 Rejji P Hayes EVP/CFO MIXED −1,974 −$632.78K
2026-03-30 Brandon J. Hofmeister Senior Vice President MIXED −896 −$286.92K
2026-03-30 Shaun M Johnson Executive Vice President & CLO MIXED −7,595 −$329.06K
2026-03-30 Tonya L Berry Executive Vice President & COO MIXED −621 −$201.66K
2026-03-30 Lauren Y Snyder Senior Vice President MIXED +100 −$43.81K
2026-03-30 Scott B McIntosh VP, Controller, CAO MIXED −169 −$91.37K
2026-03-04 Scott B McIntosh VP, Controller, CAO Sell −1,750 −$136.86K
2026-03-02 Brandon J. Hofmeister Senior Vice President MIXED −4,000 −$312.94K
2026-02-27 Diane Leopold Director Buy +2,000 +$153.40K
2026-02-23 John G Russell Director Sell −14,914 −$1.13M
2026-02-23 Richard Patrick Keyes Director A +769 —
2026-02-23 Diane Leopold Director A +769 —
2026-02-02 Garrick J Rochow President and CEO A +123,413 —
2026-02-02 Rejji P Hayes EVP/CFO A +33,144 —
2026-02-02 Tonya L Berry Executive Vice President & COO A +20,451 —
2026-02-02 Shaun M Johnson Executive Vice President & CLO A +19,747 —
2026-02-02 Brandon J. Hofmeister Senior Vice President A +13,752 —
2026-02-02 Shannon Thomas Senior Vice President A +7,757 —
2026-02-02 Lauren Y Snyder Senior Vice President A +3,526 —
2026-02-02 Scott B McIntosh VP, Controller, CAO A +5,008 —
2026-01-28 Garrick J Rochow President and CEO MIXED −26,150 −$2.03M
2026-01-28 Rejji P Hayes EVP/CFO MIXED −8,455 −$656.22K
2026-01-28 Tonya L Berry Executive Vice President & COO MIXED −2,763 −$214.09K
2026-01-28 Shaun M Johnson Executive Vice President & CLO MIXED −4,447 −$344.85K
2026-01-28 Brandon J. Hofmeister Senior Vice President MIXED −3,895 −$301.93K
2026-01-28 Lauren Y Snyder Senior Vice President MIXED −670 −$53.43K
2026-01-28 Scott B McIntosh VP, Controller, CAO MIXED −1,301 −$101.43K
2025-11-04 Brandon J. Hofmeister Senior Vice President Sell −4,000 −$289.88K
2025-09-11 Shaun M Johnson SVP and General Counsel G −715 —
2025-09-08 Lauren Y Snyder Senior Vice President Sell −2,220 −$158.20K
2025-08-12 Brandon J. Hofmeister Senior Vice President Sell −2,000 −$147.25K
2025-05-08 Brandon J. Hofmeister Senior Vice President Sell −2,198 −$161.79K
2025-05-06 Ronald J Tanski Director A +2,401 —
2025-05-06 John G Sznewajs Director A +2,401 —
2025-05-06 John G Russell Director A +2,401 —
2025-05-06 Kurt L Darrow Director A +2,401 —
CMS — Current Insider Holders
InsiderRole Shares HeldValue
Garrick J Rochow President and CEO 637,918 $42.98M
Rejji P Hayes EVP/CFO 276,825 $18.65M
John G Russell Director 138,130 $9.31M
Shaun M Johnson Executive Vice President & CLO 109,325 $7.37M
LeeRoy Wells Jr Senior Vice President 84,348 $5.68M
Tonya L Berry Executive Vice President & COO 70,105 $4.72M
Brandon J. Hofmeister Senior Vice President 67,114 $4.52M
Catherine A Hendrian Senior Vice President 55,811 $3.76M
Laura Wright Director 43,623 $2.94M
Kurt L Darrow Director 42,098 $2.84M
Myrna Soto Director 41,023 $2.76M
Deborah H Butler Director 39,850 $2.68M
John G Sznewajs Director 37,594 $2.53M
Srikanth Maddipati EVP/CFO 34,895 $2.35M
Scott B McIntosh VP, Controller, CAO 24,054 $1.62M
Suzanne F. Shank Director 23,680 $1.60M
Ronald J Tanski Director 20,903 $1.41M
Lauren Y Snyder Senior Vice President 16,596 $1.12M
Ralph Izzo Director 10,779 $726.18K
Shannon Thomas Senior Vice President 7,757 $522.59K
Diane Leopold Director 5,180 $348.98K
Richard Patrick Keyes Director 3,180 $214.24K
CMS Insider Trading FAQ
Who are the insiders at CMS?
22 officers, directors and 10%+ beneficial owners currently report holdings in CMS via SEC Form 4.
Are CMS insiders buying or selling?
Across the 50 most recent Form 4 filings for CMS, 2 were open-market purchases (code P) and 7 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is CMS insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CMS filing is dated 2026-08-03.
How to read Form 4 activity

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.

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.