TDG β€” TRANSDIGM GROUP INC COM

Ownership history in RENAISSANCE TECHNOLOGIES LLC  Β·  38 quarters on record

This page tracks every 13F SEC filing in which RENAISSANCE TECHNOLOGIES LLC reported a position in TRANSDIGM GROUP INC COM (TDG). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.21% (2023 Q4)
πŸ“Š Avg. % of fund
0.06%
πŸ“… First filed
2009 Q4
πŸ“… Last filed
2025 Q3
⏱ Quarters held
38

Position Intelligence

RENAISSANCE TECHNOLOGIES LLC Γ— TDG AI Analytics

πŸ“ˆ RENAISSANCE TECHNOLOGIES LLC outperformed the S&P 500 by +26.5% annually on this TDG position. Timing score: 46% (17/37 decisions correct). Average cost basis: $208.85. Maximum drawdown during holding period: –17.6%.

πŸ“ˆ Position Alpha vs SPY
+26.5%
annualised excess return

πŸ”₯ Exceptional β€” beat the S&P 500 by 26.5% per year on this position.
37 quarters analyzed

⏱️ Timing Score
46%

➑️ Neutral timing β€” roughly coin-flip accuracy on add/trim calls.
17 of 37 add/trim decisions correct

πŸ’° Entry Quality
$208.85
+531.1% vs current ($1318.02)

Best entry: $20.39 (2009 Q4)  Β·  Worst: $1132.23 (2024 Q2)

πŸ›‘οΈ Drawdown Resilience
–17.6%
max drawdown while held

πŸ’Ž No drawdown exceeding 20% during the holding period β€” exceptionally stable.

πŸ’ͺ Fund Conviction
42%
buy-side decisions

16 adds Β· 22 trims. Bought during 2 of 7 down-price quarters. πŸ“‰ Predominantly trimming β€” distribution phase.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.0% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    TDG price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 1,200 -49,300 -97.6% 0.00% $1.6M $1318.02
2025 Q2 REDUCED 50,500 -19,500 -27.9% 0.10% $76.8M $1422.81
2025 Q1 REDUCED 70,000 -3,700 -5.0% 0.15% $96.8M $1294.29
2024 Q4 REDUCED 73,700 -1,800 -2.4% 0.14% $93.4M $1185.75
2024 Q3 REDUCED 75,500 -11,100 -12.8% 0.16% $107.7M $1264.74
2024 Q2 ADDED 86,600 +3,400 +4.1% 0.19% $110.6M $1132.23
2024 Q1 REDUCED 83,200 -54,000 -39.4% 0.16% $102.5M $1091.46
2023 Q4 ADDED 137,200 +42,400 +44.7% 0.21% $138.8M $896.49
2023 Q3 REDUCED 94,800 -3,000 -3.1% 0.14% $79.9M $720.69
2023 Q2 ADDED 97,800 +13,500 +16.0% 0.13% $87.5M $764.32
28 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding TDG

As of 2025 Q4 β€” sorted by position size

Ampfield Management, L.P. 3Y 65.8% BRX Global LP 3Y 36.8% Blacksheep Fund Management Ltd 3Y 31.61% ALTAROCK PARTNERS LP 3Y 7Y 25.28% Anabranch Capital Management, LP 3Y 24.63% Triple Frond Partners LLC 3Y 7Y 14.36% Bluegrass Capital Partners LP 3Y 14.3% Oakcliff Capital Partners, LP 3Y 7Y 13.78% Stockbridge Partners LLC 3Y 7Y 12.71% LYNWOOD PRICE CAPITAL MANAGEMENT LP 11.32%
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