By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
CMS insiders were on both sides of the trade this year. Buys came to roughly $168,000 (two buyers), sales to $2.1 million (three sellers).
Leopold Diane (Director) made the biggest buy, worth around $153,000. That includes C-suite money, which tends to get the most attention.
Members of Congress reported 5 trades in CMS over the past two years (one member). On the institutional side, 819 funds reported holding CMS at the end of Q2 2026, and more funds bought than sold. Zooming out by quarter: Last full quarter: net buying by insiders. Insiders bought in 2 of the last 7 full quarters.
Are insiders buying or selling CMS stock?
In the last 12 months Cms Energy Corp insiders made open-market purchases worth about $168,000 and sales worth about $2.1 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in CMS?
The most recent open-market insider trade in CMS was filed on 2026-08-03.
How many institutions own CMS?
819 investment managers reported holding CMS in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded CMS?
Yes. Members of Congress reported 5 trades in CMS over the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).