Summary
Updated Aug 30, 2026
Shannon Thomas is Senior Vice President of CMS ENERGY CORP (CMS). 1 SEC Form 4 filing on record, dated 2 February 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Shannon Thomas has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Shannon Thomas files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- John G. Russell - $1.13M of CMS open-market activity in the last 12 months
- Brandon J. Hofmeister - $826K of CMS open-market activity in the last 12 months
- Lauren Y. Snyder - $158K of CMS open-market activity in the last 12 months
- Diane Leopold - $153K of CMS open-market activity in the last 12 months
- Scott B. McIntosh - $137K of CMS open-market activity in the last 12 months
- Srikanth Maddipati - $14K of CMS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Shannon Thomas?
Shannon Thomas is a corporate insider, tracked as Senior Vice President of CMS ENERGY CORP (CMS). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Shannon Thomas last file a Form 4?
The only primary Form 4 on record is dated 2 February 2026.
Where can I see all of Shannon Thomas's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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