Cornerstone Planning Group’s Atmus Filtration Technologies ATMU Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
Sell
-6
Closed -$280 1716
2025
Q3
$280 Hold
6
﹤0.01% 1590
2025
Q2
$228 Hold
6
﹤0.01% 1452
2025
Q1
$200 Buy
+6
New +$237 ﹤0.01% 1462

Other funds holding ATMU

Cornerstone Planning Group's ATMU Position: Q4 2025 in Review

Cornerstone Planning Group sold out of Atmus Filtration Technologies (ATMU) in Q4 2025, closing a stake of 6 shares — an estimated $280 sold.

Cornerstone Planning Group first reported a position in ATMU in Q1 2025 and held it in 3 quarters. The position peaked at $280 in Q3 2025. 311 funds tracked by Wall St. Rank hold ATMU as of Q4 2025.

  • Cornerstone Planning Group reported no remaining Atmus Filtration Technologies position as of Q4 2025 after selling out during the quarter.
  • Cornerstone Planning Group sold 6 Atmus Filtration Technologies shares in Q4 2025, an estimated $280.
  • Cornerstone Planning Group first reported a position in Atmus Filtration Technologies in Q1 2025 and held it in 3 quarters.
  • Cornerstone Planning Group's Atmus Filtration Technologies position peaked at $280 in Q3 2025.
  • 311 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q4 2025.

Based on Cornerstone Planning Group's 13F filing for Q4 2025, filed 2 Feb 2026.