Alan Fournier's TDG Position Overview
Alan Fournier (via Pennant Investors, Lp) currently holds 18,471 shares of TransDigm Group Incorporated (TDG) worth $24.56 M, representing 5.88% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Alan Fournier has maintained a long-term strategic position in TDG, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2017, adding 362,500 shares. Largest reduction occurred in Q4 2015, reducing 501,015 shares.
Analysis based on 13F filings available since 2013 Q2
Alan Fournier's TransDigm Group Incorporated (TDG) Holding Value Over Time
Track share changes against reported price movement
Quarterly TransDigm Group Incorporated (TDG) Trades by Alan Fournier
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q3 2025 | -1,400 | Reduce 7.05% | 18,471 | $1318.02 |
| Q2 2025 | -6,700 | Reduce 25.22% | 19,871 | $1520.64 |
| Q1 2025 | +7,200 | Add 37.17% | 26,571 | $1383.29 |
| Q3 2024 | -13,000 | Reduce 40.16% | 19,371 | $1427.13 |
| Q2 2024 | -9,629 | Reduce 22.93% | 32,371 | $1277.61 |
| Q4 2022 | +13,906 | Add 49.50% | 42,000 | $629.65 |
| Q3 2022 | -3,406 | Reduce 10.81% | 28,094 | $524.81 |
| Q1 2022 | +3,406 | Add 12.12% | 31,500 | $651.56 |
| Q4 2020 | -7,906 | Reduce 21.96% | 28,094 | $618.85 |
| Q3 2020 | +6,600 | Add 22.45% | 36,000 | $475.11 |
| Q2 2020 | -24,700 | Reduce 45.66% | 29,400 | $442.04 |
| Q1 2020 | +6,600 | Add 13.89% | 54,100 | $320.18 |
| Q4 2019 | -3,000 | Reduce 5.94% | 47,500 | $560.00 |
| Q2 2019 | +8,200 | Add 19.39% | 50,500 | $483.80 |
| Q1 2019 | +2,000 | Add 4.96% | 42,300 | $454.00 |
| Q4 2018 | -20,970 | Reduce 34.23% | 40,300 | $340.05 |
| Q3 2018 | +5,000 | Add 8.89% | 61,270 | $372.30 |
| Q2 2018 | +31,270 | Add 125.08% | 56,270 | $345.14 |
| Q1 2018 | -211,973 | Reduce 89.45% | 25,000 | $306.96 |
| Q4 2017 | -62,662 | Reduce 20.91% | 236,973 | $274.62 |
| Q3 2017 | +7,386 | Add 2.53% | 299,635 | $255.65 |
| Q2 2017 | -266,900 | Reduce 47.73% | 292,249 | $268.87 |
| Q1 2017 | +362,500 | Add 184.34% | 559,149 | $220.16 |
| Q4 2016 | -171,127 | Reduce 46.53% | 196,649 | $248.96 |
| Q3 2016 | -230,000 | Reduce 38.48% | 367,776 | $289.12 |
| Q2 2016 | -153,075 | Reduce 20.39% | 597,776 | $263.69 |
| Q1 2016 | -127,885 | Reduce 14.55% | 750,851 | $220.34 |
| Q4 2015 | -501,015 | Reduce 36.31% | 878,736 | $228.45 |
| Q3 2015 | -150,500 | Reduce 9.83% | 1.38 M | $212.41 |
| Q2 2015 | -248,600 | Reduce 13.98% | 1.53 M | $224.67 |
| Q1 2015 | -119,400 | Reduce 6.29% | 1.78 M | $218.72 |
| Q4 2014 | -240,000 | Reduce 11.22% | 1.9 M | $196.35 |
| Q2 2014 | -135,859 | Reduce 5.97% | 2.14 M | $167.26 |
| Q4 2013 | +151,500 | Add 7.14% | 2.27 M | $161.02 |
| Q3 2013 | -30,100 | Reduce 1.40% | 2.12 M | $138.70 |
| Q2 2013 | +2.15 M | Add 0.00% | 2.15 M | $156.77 |
Alan Fournier's TransDigm Group Incorporated Investment FAQs
Alan Fournier first purchased TransDigm Group Incorporated (TDG) in Q2 2013, acquiring 2,152,710 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Alan Fournier has held TransDigm Group Incorporated (TDG) for 51 quarters since Q2 2013.
Alan Fournier's largest addition to TransDigm Group Incorporated (TDG) was in Q2 2013, adding 2,152,710 shares worth $337.48 M.
According to the latest 13F filing for Q4 2025, Alan Fournier's firm, Pennant Investors, Lp, owns 18,471 shares of TransDigm Group Incorporated (TDG), valued at approximately $24.56 M.
As of the Q4 2025 filing, TransDigm Group Incorporated (TDG) represents approximately 5.88% of Alan Fournier's publicly disclosed stock portfolio, making it one of their key holdings.
Alan Fournier's peak holding in TransDigm Group Incorporated (TDG) was 2,274,110 shares, as reported at the end of Q4 2013.