TRANSDIGM GROUP INC (TDG) Institutional Ownership Changes & 13F Activity

TRANSDIGM GROUP INC (TDG) 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 Third Point, AltaRock Partners, Vulcan Value Partners, Renaissance Technologies LLC, and Lone Pine Capital.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2017Meritage GroupBuy439,177439,177$118,082
Q2 2017AltaRock PartnersBuy36,094572,164$153,838
Q2 2017Hancock Classic ValueSell-328758$204
Q1 2017Tiger Global ManagementBuy2,111,9572,540,728$559,367
Q1 2017Triple Frond PartnersBuy150,850479,998$105,676
Q1 2017AltaRock PartnersSell-55,434536,070$118,021
Q1 2017Oakcliff Capital PartnersBuy49,72749,727$10,948
Q1 2017Hancock Classic ValueBuy1,0861,086$239
Q1 2017Sequoia Financial AdvisorsBuy1001,050$231
Q4 2016Third PointSell-881,000250,000$62,240
Q4 2016Tiger Global ManagementSell-791,511428,771$106,747
Q4 2016Lone Pine CapitalSell-222,3832,028,392$504,988
Q4 2016AltaRock PartnersBuy152,356591,504$147,261
Q4 2016Renaissance Technologies LLCBuy127,300223,000$55,518
Q4 2016Triple Frond PartnersBuy46,148329,148$81,945
Q4 2016Sequoia Financial AdvisorsBuy950950$237
Q3 2016Lone Pine CapitalSell-129,6452,250,775$650,744
Q3 2016Triple Frond PartnersSell-34,500283,000$81,821
Q2 2016AltaRock PartnersSell-291,067439,148$115,799
Q2 2016Lone Pine CapitalBuy262,5612,380,420$627,693
Q2 2016Third PointBuy131,0001,131,000$298,233
Q2 2016Triple Frond PartnersSell-57,500317,500$83,722
Q1 2016Third PointBuy1,000,0001,000,000$220,340
Q1 2016Viking Global InvestorsSell-498,8181,101,310$242,663
Q1 2016Lone Pine CapitalSell-53,5002,117,859$466,649
Q1 2016Triple Frond PartnersBuy40,757375,000$82,628
Q1 2016AltaRock PartnersBuy34,972730,215$160,896
Q4 2015Viking Global InvestorsBuy461,1541,600,128$365,549
Q4 2015AltaRock PartnersBuy75,380695,243$158,828
Q4 2015Renaissance Technologies LLCBuy68,30095,700$21,863

Frequently asked questions about TDG activity

  • Which institutional owners are buying TDG?

    Institutional owners buying TDG 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 TDG activity?

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

  • Is institutional interest in TDG increasing?

    Institutional interest in TDG 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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