Charles Masters
Senior Vice President · Atmus Filtration Technologies Inc.
- 2024
- Jun 2, 2026
- 6
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Charles Masters 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.
- Stephanie Disher - $1.16M in ATMU purchases and sales in the last 12 months
- Renee Swan - $313K in ATMU purchases and sales in the last 12 months
- Jack Kienzler - $232K in ATMU purchases and sales in the last 12 months
- Gretchen R. Haggerty - $110K in ATMU purchases and sales in the last 12 months
- Stephen E. Macadam - $100K in ATMU purchases and sales in the last 12 months
- Diego Donoso - $4K in ATMU purchases and sales in the last 12 months
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Frequently asked questions
Who is Charles Masters?
Charles Masters is a corporate insider, tracked as Senior Vice President of Atmus Filtration Technologies Inc. (ATMU). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Charles Masters last file a Form 4?
The most recent primary Form 4 on record is dated 2 June 2026, one of 6 filings going back to 2024.
Has Charles Masters been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($131K) across all tracked filings.
