ATMU
Atmus Filtration Technologies Inc. · Manufacturing · Market cap $3.8B
Insiders sold $1.7M net in the last 90 days ·4 sellers, 1 buyer· latest Form 4 filed Aug 18, 2026
Insider Buying
$211K
reported purchases (SEC code P)
Insider Selling
$1.8M
reported sales (SEC code S)
Unique Insiders
7
in the rolling window
Latest filing
Aug 18, 2026
Swan Renee
Atmus Filtration Technologies Inc. (ATMU) has 31 SEC Form 4 filings (42 transaction rows) in the rolling window, disclosed by 7 distinct insiders. Most recent filing: Aug 18, 2026.
Inside the rolling window, 7 insiders at Atmus Filtration Technologies Inc. reported 4 open-market purchases totaling $211K and 7 open-market sales totaling $1.8M. The most active filer is Director Donoso Diego with 4 filings. Insiders have net sold $1.6M over the trailing 6 months. The most recent open-market filing is a sale of 3,870 shares by Chief People Officer Swan Renee, dated Aug 17, 2026, worth $197K.
- Industry:Auto - Parts
- CEO:Stephanie Juanita Disher
- Employees:4,500
- HQ:Nashville, TN, US
- IPO:2023-05-26
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief People Officer | Sale | 3,870 | $197K | Aug 18 | -7.0% | SEC ↗ | |
Macadam Stephen E.First in 9 months | Director | Purchase | 2,000 | $100K | Aug 13 | -6.8% | SEC ↗ |
Swan ReneeFirst filing | Chief People Officer | Sale | 2,566 | $116K | Jun 2 | -1.8% | SEC ↗ |
Disher StephanieFirst filing | Chief Executive Officer | Sale | 25,652 | $1.2M | Jun 2 | -1.8% | SEC ↗ |
Masters CharlesFirst filing | Senior Vice President | Sale | 2,890 | $131K | Jun 2 | -1.8% | SEC ↗ |
Kienzler JackFirst filing | Chief Financial Officer | Sale | 5,132 | $232K | Jun 2 | -1.8% | SEC ↗ |
HAGGERTY GRETCHEN RFirst filing | Director | Purchase | 1,973.351 | $110K | May 13 | -14.3% | SEC ↗ |
Donoso DiegoFirst filing | Director | Sale | 40 | $2K | Nov 19 | -1.1% | SEC ↗ |
Donoso DiegoFirst filing | Director | Purchase | 25 | $1K | Nov 19 | — | SEC ↗ |
Donoso DiegoFirst filing | Director | Purchase | 15 | $687 | Nov 19 | — | SEC ↗ |
Donoso DiegoFirst filing | Director | Sale | 20 | $977 | Nov 19 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does ATMU have?
Atmus Filtration Technologies Inc. (ATMU) has 31 SEC Form 4 filings (42 transaction rows) in the rolling 365-day window, disclosed by 7 distinct insiders. Most recent filing: Aug 18, 2026.
When was the most recent SEC Form 4 filing for ATMU?
The most recent Form 4 filing for ATMU on Tracefour is dated Aug 18, 2026.
Who is the most active insider at ATMU?
The most active SEC Form 4 filer at ATMU in the rolling window is Director Donoso Diego, with 4 filings.
What is the net insider flow at ATMU over the last 6 months?
Over the trailing 180 days, insiders at ATMU have net sold $1.6M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ATMU in the current window?
Inside the rolling window, insiders at ATMU bought $211K and sold $1.8M based on SEC Form 4 filings.
Can I get alerts for ATMU insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Atmus Filtration Technologies Inc. (ATMU). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Atmus Filtration Technologies Inc. is in the Manufacturing sector.