Insiders who reported open-market trades in the last 12 months at the companies Nathan Mark Gronberg 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.
Robert A. Katz - $4.94M in MTN purchases and sales in the last 12 months
Angela A. Korch - $25K in MTN purchases and sales in the last 12 months
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Nathan Mark Gronberg is a corporate insider, tracked as VP, Controller & CAO of VAIL RESORTS INC (MTN). InsiderAlpha holds 6 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 Nathan Mark Gronberg submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Nathan Mark Gronberg is VP, Controller & CAO of VAIL RESORTS INC (MTN). 6 SEC Form 4 filings on record going back to 2024, most recently on 7 October 2026.
Recent transactions
16
The latest 16 SEC Form 4 transactions reported by Nathan Mark Gronberg.
InsiderAlpha's records for Nathan Mark Gronberg go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
