Summary
Updated Sep 1, 2026
Langley Steinert is Executive Chair, Director, 10% Owner of CarGurus, Inc. (CARG). 12 SEC Form 4 filings on record going back to 2024, most recently on 2 July 2026. Most recent open-market trade: sold $44K of CARG on 23 December 2024. Lifetime open-market sales: $9.50M.
Recent Transactions
20Every recent SEC Form 4 transaction Langley Steinert has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Langley Steinert go back to 2024: 12 primary Form 4 filings, an average of 4.0 per year. 22 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Langley Steinert 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.
- Samuel Zales - $1.81M of CARG open-market activity in the last 12 months
- Jason Trevisan - $1.55M of CARG open-market activity in the last 12 months
- Dafna Sarnoff - $1.26M of CARG open-market activity in the last 12 months
- Stephen Kaufer - $1.00M of CARG open-market activity in the last 12 months
- Javier Zamora - $832K of CARG open-market activity in the last 12 months
- Jennifer Ladd Hanson - $713K of CARG 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 Langley Steinert?
Langley Steinert is a corporate insider, tracked as Executive Chair, Director, 10% Owner of CarGurus, Inc. (CARG). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Langley Steinert submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Langley Steinert been buying or selling stock?
Recorded transactions: 0 open-market purchases and 22 open-market sales ($9.50M) across all tracked filings.
Where can I see all of Langley Steinert'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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