ATMU Atmus Filtration Technologies Inc.
Price Chart
Executive Summary
CEO Stephanie Disher and CFO Jack Kienzler sold a combined $1.39M in open-market shares on June 1, 2026, at ~$45.25 per share. The sales represent ~0.04% of ATMU's $3.7B market cap, falling well below the 0.1% materiality threshold, and are likely routine portfolio diversification or tax-planning moves rather than a bearish signal.
Key Financial Metrics
Actionable Insight
The dollar value is immaterial relative to market cap, and both sales occurred on the same day, suggesting a coordinated liquidity event (e.g., 10b5-1 plan or tax-related sale). No bearish read-through warranted. Monitor for any subsequent Form 4 filings that might reveal 10b5-1 plan adoption or additional insider activity.
Key Facts
- CEO Stephanie Disher sold 25,652 shares for $1.16M on June 1, 2026.
- CFO Jack Kienzler sold 5,132 shares for $232K on June 1, 2026.
- Total insider sales of $1.39M represent ~0.04% of ATMU's $3.7B market cap.
- Both sales were open-market transactions at $45.247 per share.
- No insider purchases were reported in the cluster window.
Financial Impact
Total insider sales of $1.39M, or ~0.04% of market cap — trivial relative to company size.
Risk Factors
- If additional insider sales emerge in coming weeks without 10b5-1 plan disclosure, the cluster could become more informative.
- The stock has underperformed recently (T+5 moves of -9% to -11% on prior neutral reports), but insider selling at this scale does not explain that move.
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ATMU-1780439095072 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 2, 2026
12d ago
|
Insider Cluster
| $47.37 $47.21 | ▼ −0.34% | ▼ −0.74% | $49.80 (+5.13%) |
|
May 13, 2026
4w ago
|
8-K
| $54.15 $53.98 | ▼ −0.31% | ▼ −1.09% | $49.80 (−8.03%) |
|
May 11, 2026
4w ago
|
3
| $56.60 $55.50 | ▼ −1.94% | ▼ −1.81% | $49.80 (−12.01%) |
|
May 11, 2026
4w ago
|
8-K
| $56.60 $55.50 | ▼ −1.94% | ▼ −1.81% | $49.80 (−12.01%) |
US Market Status
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