Summary
Updated Aug 31, 2026
Markus Hartmann is General Counsel of Mister Car Wash, Inc. (MCW). 1 SEC Form 4 filing on record, dated 3 December 2024. Most recent open-market trade: sold $4K of MCW on 3 December 2024. Lifetime open-market sales: $4K.
Recent Transactions
2Every recent SEC Form 4 transaction Markus Hartmann has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Markus Hartmann go back to 2024: 1 primary Form 4 filing, an average of 0.3 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Markus Hartmann 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 Lo-Minn Lai - $156K of MCW open-market activity in the last 12 months
- Jedidiah Marc Gold - $34K of MCW open-market activity in the last 12 months
- Joseph Duane Matheny - $16K of MCW 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 Markus Hartmann?
Markus Hartmann is a corporate insider, tracked as General Counsel of Mister Car Wash, Inc. (MCW). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Markus Hartmann last file a Form 4?
The only primary Form 4 on record is dated 3 December 2024.
Has Markus Hartmann been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($4K) across all tracked filings.
Where can I see all of Markus Hartmann'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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