Stephen E. Macadam insider trades: Atmus Filtration Technologies (ATMU) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Stephen reports to the SEC
and 2 more companies
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | ATMU | ↑ Buy | 2,000 | $49.78 | $100K | Direct | Aug 13, 2026 (1d) |
| Nov 7, 2025 | LPX | ↑ Buy | 3,200 | $78.06 | $250K | Direct | Nov 12, 2025 (5d) |
| Aug 7, 2024 | ATMU | ↑ Buy | 8,250 | $31.56 | $260K | Direct | Aug 8, 2024 (1d) |
| Aug 6, 2024 | SNBR | ↑ Buy | 43,000 | $12.35 | $531K | Direct | Aug 8, 2024 (2d) |
| Nov 10, 2023 | SNBR | ↑ Buy | 50,000 | $9.70 | $485K | Direct | Nov 14, 2023 (4d) |
| Nov 9, 2023 | ATMU | ↑ Buy | 5,200 | $19.49 | $101K | Direct | Nov 9, 2023 (0d) |
| May 26, 2023 | ATMU | ↑ Buy | 4,600 | $21.75 | $100K | Direct | May 26, 2023 (0d) |
| Mar 22, 2022 | VRTV | ↑ Buy | 1,600 | $126.53 | $202K | Direct | Mar 23, 2022 (1d) |
| Nov 30, 2021 | VRTV | ↑ Buy | 1,500 | $126.63 | $190K | Direct | Dec 1, 2021 (1d) |
| Aug 9, 2021 | LPX | ↑ Buy | 1,850 | $56.24 | $104K | Direct | Aug 9, 2021 (0d) |
| Mar 23, 2021 | VRTV | ↑ Buy | 5,000 | $39.49 | $197K | Direct | Mar 23, 2021 (0d) |
| Nov 6, 2020 | LPX | ↑ Buy | 6,400 | $31.32 | $200K | Direct | Nov 9, 2020 (3d) |
| May 7, 2020 | LPX | ↑ Buy | 5,000 | $20.96 | $105K | Direct | May 8, 2020 (1d) |
| Feb 28, 2020 | LPX | ↑ Buy | 3,600 | $27.46 | $99K | Direct | Mar 2, 2020 (3d) |
| Aug 8, 2019 | NPO | ↓ Sell | 11,261 | $67.26 | $757K | Direct | Aug 9, 2019 (1d) |
| Nov 6, 2017 | NPO | ↓ Sell | 25,000 | $84.06 | $2.1M | Direct | Nov 7, 2017 (1d) |
| Aug 7, 2017 | NPO | ↓ Sell | 26,318 | $74.08 | $1.9M | Direct | Aug 8, 2017 (1d) |
| May 4, 2017 | NPO | ↓ Sell | 15,000 | $72.21 | $1.1M | Direct | May 8, 2017 (4d) |
| Mar 1, 2017 | NPO | ↓ Sell | 10,000 | $67.00 | $670K | Direct | Mar 2, 2017 (1d) |
| Feb 22, 2017 | NPO | ↓ Sell | 20,000 | $65.12 | $1.3M | Direct | Feb 23, 2017 (1d) |
| Nov 10, 2016 | NPO | ↓ Sell | 30,000 | $57.72 | $1.7M | Direct | Nov 14, 2016 (4d) |
| Sep 28, 2016 | VVV | ↑ Buy | 5,000 | $22.00 | $110K | Direct | Sep 30, 2016 (2d) |
| May 10, 2013 | AXLL | ↑ Buy | 1,000 | $47.51 | $48K | Direct | May 13, 2013 (3d) |
| Aug 7, 2012 | NPO | ↑ Buy | 13,900 | $33.25 | $462K | Direct | Aug 8, 2012 (1d) |
| Aug 10, 2011 | NPO | ↑ Buy | 2,500 | $39.70 | $99K | Direct | Aug 10, 2011 (0d) |
| Jun 24, 2011 | NPO | ↑ Buy | 2,250 | $44.73 | $101K | Direct | Jun 27, 2011 (3d) |
| Jun 9, 2010 | NPO | ↑ Buy | 4,063 | $29.51 | $120K | Direct | Jun 10, 2010 (1d) |
| Nov 17, 2008 | NPO | ↑ Buy | 5,793 | $17.19 | $100K | Direct | Nov 18, 2008 (1d) |
| Nov 4, 2008 | NPO | ↑ Buy | 4,609 | $21.70 | $100K | Direct | Nov 5, 2008 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ATMU insiders
Open-market trades in the last 12 months
About Stephen E. Macadam's insider trades
Stephen E. Macadam is a director at Atmus Filtration Technologies (ATMU). Since Nov 4, 2008, Stephen has reported 22 open-market purchases worth $4.1M and 7 sales worth $9.6M on SEC Form 4. In the last 12 months: 2 buys ($349K).
Their filings also include grants and awards (72 filings), option exercises (21 filings), shares withheld for taxes (16 filings), shares returned to the company (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ATMU insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.