ILLINOIS TOOL WORKS (ITW) Institutional Ownership Changes & 13F Activity

ILLINOIS TOOL WORKS (ITW) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Sequoia Financial Advisors, Mairs & Power Growth Fund, Cullen Value Fund, and Ariel Appreciation Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2020Ariel Appreciation FundSell-149,69687,025$12,368
Q1 2020Mairs & Power Growth FundSell-3002,349$334
Q1 2020Sequoia Financial AdvisorsSell-1961,900$270
Q4 2019Ariel Appreciation FundSell-39,542236,721$42,522
Q4 2019Sequoia Financial AdvisorsSell-1,2102,096$377
Q3 2019Ariel Appreciation FundSell-83,349276,263$43,232
Q3 2019Mairs & Power Growth FundSell-2502,649$415
Q3 2019Sequoia Financial AdvisorsBuy763,306$517
Q2 2019Ariel Appreciation FundSell-3,296359,612$54,233
Q2 2019Sequoia Financial AdvisorsSell-283,230$487
Q1 2019Sequoia Financial AdvisorsBuy1,7773,258$468
Q1 2019Ariel Appreciation FundSell-853362,908$52,088
Q4 2018Ariel Appreciation FundSell-61,453363,761$46,085
Q4 2018Mairs & Power Growth FundSell-1012,899$367
Q3 2018Renaissance Technologies LLCBuy141,700678,700$95,778
Q3 2018Ariel Appreciation FundSell-1,386425,214$60,006
Q3 2018Mairs & Power Growth FundSell-4503,000$423
Q3 2018Sequoia Financial AdvisorsBuy1561,481$209
Q2 2018Ariel Appreciation FundSell-6,842426,600$59,101
Q2 2018Mairs & Power Growth FundSell-1993,450$478
Q1 2018Ariel Appreciation FundSell-4,901433,442$67,903
Q1 2018Mairs & Power Growth FundSell-5773,649$572
Q1 2018Sequoia Financial AdvisorsSell-61,325$208
Q4 2017Ariel Appreciation FundSell-43,411438,343$73,138
Q4 2017Sequoia Financial AdvisorsBuy1,3311,331$222
Q3 2017Ariel Appreciation FundSell-1,597481,754$71,280
Q3 2017Mairs & Power Growth FundBuy1,0004,226$625
Q2 2017Ariel Appreciation FundSell-190,007483,351$69,240
Q1 2017Ariel Appreciation FundSell-80,971673,358$89,200
Q1 2017Mairs & Power Growth FundBuy1,0273,226$427

Frequently asked questions about ITW activity

  • Which institutional owners are buying ITW?

    Institutional owners buying ITW 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 ITW activity?

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

  • Is institutional interest in ITW increasing?

    Institutional interest in ITW 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.

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