Woodline Partners’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
2026
Q2
$31M Buy
607,471
+251,535
+71% +$13.7M 0.1% 276
2026
Q1
$20.2M Buy
355,936
+98,714
+38% +$5.83M 0.08% 340
2025
Q4
$13.4M Buy
257,222
+50,069
+24% +$2.42M 0.05% 391
2025
Q3
$9.34M Sell
207,153
-251,089
-55% -$10.5M 0.04% 453
2025
Q2
$16.7M Buy
458,242
+300,875
+191% +$10.7M 0.09% 319
2025
Q1
$5.78M Buy
+157,367
New +$6.21M 0.04% 465

Other funds holding ATMU

Woodline Partners's ATMU Position: Q2 2026 in Review

Woodline Partners increased its Atmus Filtration Technologies (ATMU) stake by 71% in Q2 2026, buying an estimated $13.7M and bringing the position to 607,471 shares worth $31M. The position accounts for 0.1% of the portfolio, ranked #276.

Woodline Partners first reported a position in ATMU in Q1 2025 and has held it in 6 quarters since. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

  • Woodline Partners held 607,471 shares of Atmus Filtration Technologies worth $31M as of Q2 2026.
  • Woodline Partners bought 251,535 Atmus Filtration Technologies shares in Q2 2026, an estimated $13.7M.
  • Atmus Filtration Technologies made up 0.1% of Woodline Partners's portfolio in Q2 2026, its #276 holding.
  • Woodline Partners first reported a position in Atmus Filtration Technologies in Q1 2025 and has held it in 6 quarters since.
  • 335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Woodline Partners's 13F filing for Q2 2026, filed 14 Aug 2026.