Over 12 months, Atmus Filtration Technologies Inc. saw more selling than buying from its insiders — purchases of about $211,000 against sales of $1.8 million.
Biggest single buyer: HAGGERTY GRETCHEN R, Director, with roughly $104,000.
On the institutional side, 335 funds reported holding ATMU at the end of Q2 2026, and funds were split between buying and selling. Zooming out by quarter: 2 quarters in a row of net selling by insiders. Insiders bought in 3 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | Swan Renee | Executive Officer | Sell | 3,870 | $50.89 | $197K | SEC |
| Aug 13, 2026 | Macadam Stephen E. | Director | Buy | 2,000 | $49.78 | $100K | SEC |
| Jun 2, 2026 | Swan Renee | Executive Officer | Sell | 2,566 | $45.25 | $116K | SEC |
| Jun 2, 2026 | Masters Charles | President | Sell | 2,890 | $45.25 | $131K | SEC |
| Jun 2, 2026 | Kienzler Jack | CFO | Sell | 5,132 | $45.25 | $232K | SEC |
| Jun 2, 2026 | Disher Stephanie | CEO | Sell | 25,652 | $45.25 | $1.2M | SEC |
| May 13, 2026 | HAGGERTY GRETCHEN R | Director | Buy | 1,872 | $55.74 | $104K | SEC |
| May 13, 2026 | HAGGERTY GRETCHEN R | Director | Buy | 100 | $55.71 | $6K | SEC |
| May 13, 2026 | HAGGERTY GRETCHEN R | Director | Buy | 1 | $55.74 | $56 | SEC |
| Nov 19, 2025 | Donoso Diego | Director | Buy | 25 | $45.00 | $1K | SEC |
| Nov 19, 2025 | Donoso Diego | Director | Buy | 15 | $45.81 | $687 | SEC |
| Nov 19, 2025 | Donoso Diego | Director | Sell | 20 | $48.84 | $977 | SEC |
| Nov 19, 2025 | Donoso Diego | Director | Sell | 40 | $37.79 | $2K | SEC |
| Aug 27, 2024 | HAGGERTY GRETCHEN R | Director | Buy | 5,849 | $34.20 | $200K | SEC |
| Aug 8, 2024 | Macadam Stephen E. | Director | Buy | 8,250 | $31.56 | $260K | SEC |
In the last 12 months Atmus Filtration Technologies Inc. insiders made open-market purchases worth about $211,000 and sales worth about $1.8 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in ATMU was filed on 2026-08-18.
335 investment managers reported holding ATMU in SEC Form 13F filings for Q2 2026.
No congressional trades in ATMU were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).