Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
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Healthcare of Ontario Pension Plan (HOOPP) Trust Fund’s Atmus Filtration Technologies ATMU Stock Holding History

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund’s Portfolio ATMU Stock Details ATMU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$13.4M Sell
262,643
-191,995
-42% -$10.4M 0.02% 533
2026
Q1 		$25.8M Buy
454,638
+401,315
+753% +$23.7M 0.04% 305
2025
Q4 		$2.77M Buy
+53,323
New +$2.58M ﹤0.01% 820
2025
Q3 		– Sell
-67,800
Closed -$2.47M – 1184
2025
Q2 		$2.47M Hold
67,800
– – ﹤0.01% 625
2025
Q1 		$2.49M Hold
67,800
– – 0.01% 598
2024
Q4 		$2.66M Sell
67,800
-522,300
-89% -$21.2M 0.01% 632
2024
Q3 		$22.1M Buy
590,100
+93,900
+19% +$3.06M 0.05% 254
2024
Q2 		$14.3M Buy
+496,200
New +$15M 0.04% 239

Other funds holding ATMU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund's ATMU Position: Q2 2026 in Review

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund reduced its Atmus Filtration Technologies (ATMU) stake by 42% in Q2 2026, selling an estimated $10.4M and leaving 262,643 shares worth $13.4M. The position accounts for 0.02% of the portfolio, ranked #533.

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund first reported a position in ATMU in Q2 2024 and has held it in 8 quarters since. The position peaked at $25.8M in Q1 2026. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

  • Healthcare of Ontario Pension Plan (HOOPP) Trust Fund held 262,643 shares of Atmus Filtration Technologies worth $13.4M as of Q2 2026.
  • Healthcare of Ontario Pension Plan (HOOPP) Trust Fund sold 191,995 Atmus Filtration Technologies shares in Q2 2026, an estimated $10.4M.
  • Atmus Filtration Technologies made up 0.02% of Healthcare of Ontario Pension Plan (HOOPP) Trust Fund's portfolio in Q2 2026, its #533 holding.
  • Healthcare of Ontario Pension Plan (HOOPP) Trust Fund first reported a position in Atmus Filtration Technologies in Q2 2024 and has held it in 8 quarters since.
  • Healthcare of Ontario Pension Plan (HOOPP) Trust Fund's Atmus Filtration Technologies position peaked at $25.8M in Q1 2026.
  • 335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Healthcare of Ontario Pension Plan (HOOPP) Trust Fund's 13F filing for Q2 2026, filed 13 Aug 2026.