undamentalytics Newsletter

CMS Energy insider trading

Every open-market purchase and sale by CMS Energy's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
CMS Energy insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following CMS Energy’s insiders pay?

From May 6, 2010 to August 3, 2026, 29 insiders reported 7 open-market purchases and 159 sales not made under a pre-set plan in CMS Energy. Twelve months after each purchase was reported, the shares were +5.4% against the S&P 500 on average (median +7.1%), over 5 purchases with a full year of prices; 60% beat the index. After sales, the shares moved −3.9% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 19, 2013 into $20,586 by November 2, 2026, +5.6% a year. It held shares 34% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $22,088 (+6.2% a year), and held throughout $57,396 (+14.2%).

$0$20.0k$40.0k$60.0k 2013201520172019202120232025 $57.4k$22.1k$20.6k
Copying CMS Energy's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by CMS Energy's insiders from August 19, 2013, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 34% of the time.
CMS Energy: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Mengebier David G Senior Vice President 0 — — 18 +2.7% (18) November 22, 2017
Hofmeister Brandon J. Senior Vice President 0 — — 16 −10.1% (13) May 27, 2026
Venkat Dhenuvakonda Rao Senior Vice President 0 — — 13 −7.0% (13) May 12, 2022
Rich Brian F Senior Vice President 0 — — 11 −4.7% (11) August 1, 2024
Barba Glenn P Vice President, CAO 0 — — 10 +3.0% (10) August 9, 2021
Brossoit Jean-Francois Senior Vice President 0 — — 10 −18.3% (10) September 2, 2021
Barfield Jon E Director 0 — — 9 −2.7% (9) June 10, 2024
Butler John M Senior Vice President 0 — — 8 +1.0% (8) March 9, 2017
Brunner James E SVP & Chief Legal Counsel 0 — — 7 +1.3% (7) March 5, 2014
Hendrian Catherine A Senior Vice President 0 — — 7 −12.6% (7) June 13, 2023
Mcintosh Scott B VP, Controller, CAO 0 — — 7 −13.1% (6) March 4, 2026
Reynolds Catherine M SVP and General Counsel 0 — — 7 +6.7% (7) May 9, 2019
Russell John G President and CEO 0 — — 6 −4.7% (5) February 23, 2026
Webb Thomas J Vice Chairman 0 — — 6 −7.0% (6) May 30, 2017
Malone Daniel J Senior Vice President 0 — — 4 −3.9% (4) May 31, 2017
Harvey William D Director 3 +14.8% (3) 100% 0 — November 9, 2016
Johnson Shaun M SVP and General Counsel 0 — — 3 −19.8% (3) February 14, 2023
Joos David W Director 0 — — 3 +7.2% (3) November 6, 2012
Yasinsky John B Director 0 — — 3 +16.7% (3) February 26, 2015
Paquette Joseph Farnand Jr Other 0 — — 2 +1.9% (2) August 13, 2010
Pierre Percy A Other 0 — — 2 +8.1% (2) August 13, 2010
Rochow Garrick J Senior Vice President 0 — — 2 +4.5% (2) August 21, 2017
Way Kenneth L Director 0 — — 2 −4.3% (2) November 6, 2012
Wright Laura Director 1 −6.8% (1) 0% 1 −8.0% (1) February 21, 2025
Ayres Merribel S Director 0 — — 1 −13.8% (1) March 20, 2013
Leopold Diane Director 1 — — 0 — February 27, 2026
Maddipati Srikanth EVP/CFO 1 — — 0 — August 3, 2026
Snyder Lauren Y Senior Vice President 0 — — 1 −19.4% (1) September 8, 2025
Soto Myrna Director 1 −10.8% (1) 0% 0 — March 9, 2016

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded CMS Energy

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of CMS Energy in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 20 selling crowds, −3.7%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
March 31, 20263 selling−16.3%−35.3%not yet
December 31, 20243 selling+22.3%−0.5%−11.3%
June 28, 20243 selling+13.9%+4.4%+5.3%
November 30, 20233 selling−7.8%−4.2%−9.5%
March 31, 20233 selling−10.6%−21.4%−28.7%
June 30, 20224 selling−7.5%−6.0%−28.2%
August 31, 20214 selling−8.8%+4.4%+19.5%
May 29, 20204 selling−12.3%−11.8%−30.2%
May 31, 20194 selling+6.3%−4.7%−5.3%
May 31, 20183 selling−0.5%+10.4%+23.9%
May 31, 20175 selling+1.6%−3.6%−14.1%
March 31, 20164 selling+5.4%−3.7%−9.0%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 20. Total returns from the month end; past patterns are not a forecast.

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