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
Q4 2015Lone Pine CapitalSell-44,0642,171,359$496,047
Q4 2015Triple Frond PartnersBuy9,243334,243$76,358
Q3 2015Viking Global InvestorsBuy680,7981,138,974$241,929
Q3 2015AltaRock PartnersBuy186,242619,863$131,665
Q3 2015Renaissance Technologies LLCSell-58,30027,400$5,820
Q3 2015Triple Frond PartnersBuy50,000325,000$69,033
Q3 2015Tiger Global ManagementSell-35,2191,220,282$259,200
Q2 2015Tiger Global ManagementSell-1,313,1141,255,501$282,073
Q2 2015Viking Global InvestorsBuy458,176458,176$102,938
Q2 2015AltaRock PartnersBuy201,871433,621$97,422
Q1 2015Lone Pine CapitalBuy428,5872,215,423$484,557
Q1 2015Renaissance Technologies LLCSell-313,30085,700$18,744
Q1 2015Triple Frond PartnersBuy275,000275,000$60,148
Q1 2015AltaRock PartnersBuy76,666231,750$50,688
Q1 2015Tiger Global ManagementBuy25,0032,568,615$561,807
Q4 2014Renaissance Technologies LLCBuy377,700399,000$78,344
Q4 2014AltaRock PartnersBuy155,084155,084$30,451
Q4 2014Tiger Global ManagementSell-5,0762,543,612$499,438
Q3 2014Lone Pine CapitalBuy807,4411,786,836$329,367
Q3 2014Renaissance Technologies LLCSell-12,11721,300$3,926
Q2 2014Tiger Global ManagementSell-74,2842,548,688$426,294
Q2 2014Lone Pine CapitalSell-54,523979,395$163,814
Q1 2014Lone Pine CapitalSell-1,734,7111,033,918$191,482
Q4 2013Tiger Global ManagementBuy822,9722,622,972$422,351
Q4 2013Lone Pine CapitalBuy212,4192,768,629$445,805
Q4 2013Renaissance Technologies LLCSell-4,18333,417$5,381
Q3 2013Tiger Global ManagementBuy1,270,0001,800,000$249,660
Q3 2013Renaissance Technologies LLCBuy23,00037,600$5,215
Q2 2013Lone Pine CapitalBuy2,556,2102,556,210$400,737
Q2 2013Tiger Global ManagementBuy530,000530,000$83,088

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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