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
Q3 2022Vulcan Value PartnersSell-211,1161,019,056$534,821
Q3 2022Renaissance Technologies LLCBuy83,200222,300$116,667
Q3 2022Lone Pine CapitalSell-46,819737,523$387,067
Q3 2022AltaRock PartnersBuy43,7001,502,379$788,479
Q3 2022Meritage GroupBuy4,006574,399$301,456
Q3 2022Triple Frond PartnersSell-109146,291$76,776
Q2 2022Vulcan Value PartnersSell-794,7181,230,172$660,196
Q2 2022Renaissance Technologies LLCBuy132,100139,100$74,651
Q2 2022Meritage GroupSell-46,729570,393$306,113
Q2 2022AltaRock PartnersBuy37,4001,458,679$782,829
Q1 2022Vulcan Value PartnersSell-198,5902,024,890$1,319,297
Q1 2022Third PointSell-166,878160,000$104,246
Q1 2022AltaRock PartnersBuy70,2251,421,279$926,020
Q1 2022Meritage GroupSell-39,995617,122$402,080
Q1 2022Sequoia Financial AdvisorsSell-3,5613,451$2,248
Q1 2022Renaissance Technologies LLCSell-2,8007,000$4,561
Q4 2021Vulcan Value PartnersBuy179,7872,223,480$1,414,756
Q4 2021Third PointSell-123,122326,878$207,986
Q4 2021AltaRock PartnersBuy24,8721,351,054$859,649
Q4 2021Triple Frond PartnersBuy18,006146,400$93,151
Q4 2021Sequoia Financial AdvisorsBuy3,7807,012$4,462
Q4 2021Meritage GroupBuy2,101657,117$418,110
Q3 2021Vulcan Value PartnersBuy70,5792,043,693$1,276,429
Q3 2021AltaRock PartnersBuy70,0001,326,182$828,293
Q3 2021Lone Pine CapitalBuy66,879784,342$489,876
Q3 2021Meritage GroupSell-11,217655,016$409,103
Q3 2021Sequoia Financial AdvisorsSell-3,7263,232$2,019
Q3 2021Lountzis Asset ManagementBuy33$1,873
Q2 2021AltaRock PartnersBuy303,6191,256,182$813,114
Q2 2021Vulcan Value PartnersSell-60,7811,973,114$1,277,177

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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