ATMUS FILTRATION TECHNOLOGIE (ATMU) Institutional Ownership Changes & 13F Activity

ATMUS FILTRATION TECHNOLOGIE (ATMU). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Eminence Capital, Lp, T. Rowe Price Investment Management, Inc., Fmr Llc, Parsifal Capital Management, Lp, and Qube Research & Technologies Ltd.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Op Asset Management LtdBuy+84,992+227.6%122,340$6.95MQ1 2026Sep 28, 2026
Algert Global LlcSell-55,005-9.7%514,932$29.23MQ1 2026Aug 11, 2026
Wells Fargo & Company/MnSell-63,326-35.4%115,512$6.56MQ1 2026Jul 08, 2026
Bank Of America CorpBuy+225,601+33.8%893,577$50.73MQ1 2026May 18, 2026
California State Teachers Retirement SystemBuy+18,890+24.0%97,466$5.53MQ1 2026May 18, 2026
Altshuler Shaham LtdBuy+21—21$4.03KQ1 2026May 18, 2026
Eminence Capital, LpSell-2,543,351-66.5%1,281,995$72.78MQ1 2026May 15, 2026
T. Rowe Price Investment Management, Inc.Buy+1,526,174+2800.2%1,580,676$89.73MQ1 2026May 15, 2026
Fmr LlcBuy+517,992+11.7%4,937,777$280.32MQ1 2026May 15, 2026
Parsifal Capital Management, LpSell-445,300-36.1%788,987$44.79MQ1 2026May 15, 2026
Qube Research & Technologies LtdBuy+406,965+121.8%741,198$42.08MQ1 2026May 15, 2026
Morgan StanleySell-386,409-18.2%1,736,994$98.61MQ1 2026May 15, 2026
Nomura Asset Management International Inc.Buy+284,198—284,198$16.13MQ1 2026May 15, 2026
Marshall Wace, LlpSell-242,118-42.9%322,609$18.31MQ1 2026May 15, 2026
Geode Capital Management, LlcBuy+216,401+8.9%2,645,085$150.18MQ1 2026May 15, 2026
Wellington Management Group LlpSell-216,074-13.5%1,386,421$78.71MQ1 2026May 15, 2026
Price T Rowe Associates IncSell-191,194-4.1%4,486,690$254.71MQ1 2026May 15, 2026
Janus Henderson Group PlcBuy+181,792+13.3%1,551,117$88.10MQ1 2026May 15, 2026
D. E. Shaw & Co., Inc.Buy+176,783+12.2%1,620,752$92.01MQ1 2026May 15, 2026
Ancora Advisors LlcSell-172,326-45.9%203,289$11.54MQ1 2026May 15, 2026
Barclays PlcBuy+165,006+114.8%308,725$17.53MQ1 2026May 15, 2026
Westwood Holdings Group IncSell-142,299-10.3%1,239,186$70.35MQ1 2026May 15, 2026
Hotchkis & Wiley Capital Management LlcSell-133,127-45.7%158,026$8.97MQ1 2026May 15, 2026
Voloridge Investment Management, LlcSell-132,738-44.2%167,596$9.51MQ1 2026May 15, 2026
Tidal Investments LlcBuy+120,572—120,572$6.84MQ1 2026May 15, 2026
Castleark Management LlcBuy+119,350—119,350$6.78MQ1 2026May 15, 2026
Susquehanna International Group, LlpSell-104,911-23.6%339,083$19.25MQ1 2026May 15, 2026
Woodline Partners LpBuy+98,714+38.4%355,936$20.21MQ1 2026May 15, 2026
Goldman Sachs Group IncBuy+90,625+2.8%3,290,936$186.83MQ1 2026May 15, 2026
Frontier Capital Management Co LlcBuy+88,667+13.6%742,221$42.14MQ1 2026May 15, 2026
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Frequently asked questions about ATMU activity

  • Which institutional owners are buying ATMU?

    Institutional owners buying ATMU include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ATMU activity?

    "Buy" means an investor increased their reported position in ATMU compared to the prior reporting period. This reflects growing exposure to ATMUS FILTRATION TECHNOLOGIE (ATMU) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATMU increasing?

    Institutional interest in ATMU can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.