THERMO FISHER SCIENTIFIC INC (TMO) Institutional Ownership Changes & 13F Activity

THERMO FISHER SCIENTIFIC INC (TMO). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Viking Global Investors, Renaissance Technologies LLC, Cantillon Capital Management, Parnassus Endeavor Fund, and Lindsell Train.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2020Cantillon Capital ManagementSell-4,781964,200$449,105
Q4 2020Matrix Advisors Value FundSell-2,19421,840$10,173
Q4 2020Dodge & Cox Stock FundSell-28534,845$16,230
Q4 2020Sequoia Financial AdvisorsBuy512,866$1,335
Q4 2020Mairs & Power Growth FundBuy51,355$631
Q3 2020AKO CapitalBuy435,377435,377$192,228
Q3 2020Viking Global InvestorsSell-356,9211,377,223$608,071
Q3 2020Sound Shore ManagementSell-28,357160,052$70,666
Q3 2020Cantillon Capital ManagementSell-11,867968,981$427,824
Q3 2020Sequoia Financial AdvisorsBuy2,8152,815$1,243
Q3 2020Dodge & Cox Stock FundSell-84035,130$15,511
Q3 2020ARK InvestSell-82077$34
Q3 2020Matrix Advisors Value FundSell-54424,034$10,611
Q3 2020Mairs & Power Growth FundSell-751,350$596
Q2 2020Viking Global InvestorsBuy588,1071,734,144$628,350
Q2 2020Sound Shore ManagementSell-128,524188,409$68,268
Q2 2020Renaissance Technologies LLCBuy65,500191,917$69,539
Q2 2020Cantillon Capital ManagementBuy10,323980,848$355,400
Q2 2020Matrix Advisors Value FundSell-8,16324,578$8,906
Q2 2020Sequoia Financial AdvisorsSell-2,6130$996
Q2 2020Olstein Capital ManagementSell-2,5007,000$2,536
Q2 2020Dodge & Cox Stock FundSell-32035,970$13,033
Q2 2020Eagle Capital ManagementSell-29428,785$10,430
Q2 2020Mairs & Power Growth FundSell-311,425$516
Q1 2020Renaissance Technologies LLCSell-236,327126,417$35,852
Q1 2020Sound Shore ManagementSell-41,748316,933$89,882
Q1 2020Matrix Advisors Value FundSell-5,61432,741$9,285
Q1 2020Cantillon Capital ManagementSell-1,256970,525$275,241
Q1 2020Eagle Capital ManagementSell-13629,079$8,247
Q1 2020Mairs & Power Growth FundSell-751,456$413

Frequently asked questions about TMO activity

  • Which institutional owners are buying TMO?

    Institutional owners buying TMO 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 TMO activity?

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

  • Is institutional interest in TMO increasing?

    Institutional interest in TMO 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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