ATMU insider trading — Atmus Filtration Technologies Inc.
Over the last 90 days, insiders at Atmus Filtration Technologies Inc. (ATMU) made 1 open-market purchase worth $100K and 1 open-market sale worth $197K, making them net sellers by $97K. The largest purchase was by Macadam Stephen E. (Director), who bought 2,000 shares for $100K on Aug 12, 2026. The largest sale was by Swan Renee (Chief People Officer), who sold 3,870 shares for $197K on Aug 17, 2026.
Updated Oct 16, 2026.
Recent ATMU insider transactions
Every Form 4 filed by Atmus Filtration Technologies Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 17, 2026 | Swan Renee | Chief People Officer | S · Sale | Direct | 3,870 | $50.89 | $197K | Form 4 |
| Aug 12, 2026 | Macadam Stephen E. | Director | P · Purchase | Direct | 2,000 | $49.78 | $100K | Form 4 |
ATMU insider trading FAQ
Are insiders buying ATMU stock?
Yes. In the last 90 days, Atmus Filtration Technologies Inc. insiders made 1 open-market purchase totaling $100K, and 1 open-market sale totaling $197K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading ATMU?
Recent buyers: Macadam Stephen E.. Recent sellers: Swan Renee.
Where does ATMU insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.