Alan Fournier's TDG Position Overview
Alan Fournier (via Pennant Investors, Lp) currently holds 18,471 shares of TransDigm Group Incorporated (TDG) worth $24.35 M, representing 6.55% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 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
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +2.15 M | Add 0.00% | 2.15 M | $156.77 |
| Q3 2013 | -30,100 | Reduce 1.40% | 2.12 M | $138.70 |
| Q4 2013 | +151,500 | Add 7.14% | 2.27 M | $161.02 |
| Q2 2014 | -135,859 | Reduce 5.97% | 2.14 M | $167.26 |
| Q4 2014 | -240,000 | Reduce 11.22% | 1.9 M | $196.35 |
| Q1 2015 | -119,400 | Reduce 6.29% | 1.78 M | $218.72 |
| Q2 2015 | -248,600 | Reduce 13.98% | 1.53 M | $224.67 |
| Q3 2015 | -150,500 | Reduce 9.83% | 1.38 M | $212.41 |
| Q4 2015 | -501,015 | Reduce 36.31% | 878,736 | $228.45 |
| Q1 2016 | -127,885 | Reduce 14.55% | 750,851 | $220.34 |
| Q2 2016 | -153,075 | Reduce 20.39% | 597,776 | $263.69 |
| Q3 2016 | -230,000 | Reduce 38.48% | 367,776 | $289.12 |
| Q4 2016 | -171,127 | Reduce 46.53% | 196,649 | $248.96 |
| Q1 2017 | +362,500 | Add 184.34% | 559,149 | $220.16 |
| Q2 2017 | -266,900 | Reduce 47.73% | 292,249 | $268.87 |
| Q3 2017 | +7,386 | Add 2.53% | 299,635 | $255.65 |
| Q4 2017 | -62,662 | Reduce 20.91% | 236,973 | $274.62 |
| Q1 2018 | -211,973 | Reduce 89.45% | 25,000 | $306.96 |
| Q2 2018 | +31,270 | Add 125.08% | 56,270 | $345.14 |
| Q3 2018 | +61,271 | Add 0.00% | 61,270 | $372.30 |
| Q4 2018 | -20,970 | Reduce 34.23% | 40,300 | $340.05 |
| Q1 2019 | +2,000 | Add 4.96% | 42,300 | $454.00 |
| Q2 2019 | +8,200 | Add 19.39% | 50,500 | $483.80 |
| Q4 2019 | -3,000 | Reduce 5.94% | 47,500 | $560.00 |
| Q1 2020 | +6,600 | Add 13.89% | 54,100 | $320.18 |
| Q2 2020 | -24,700 | Reduce 45.66% | 29,400 | $442.04 |
| Q3 2020 | +6,600 | Add 22.45% | 36,000 | $475.11 |
| Q4 2020 | -7,906 | Reduce 21.96% | 28,094 | $618.85 |
| Q1 2022 | +3,406 | Add 12.12% | 31,500 | $651.56 |
| Q3 2022 | -3,406 | Reduce 10.81% | 28,094 | $524.81 |
| Q4 2022 | +13,906 | Add 49.50% | 42,000 | $629.65 |
| Q2 2024 | -9,629 | Reduce 22.93% | 32,371 | $1277.61 |
| Q3 2024 | -13,000 | Reduce 40.16% | 19,371 | $1427.13 |
| Q1 2025 | +7,200 | Add 37.17% | 26,571 | $1383.29 |
| Q2 2025 | -6,700 | Reduce 25.22% | 19,871 | $1520.64 |
| Q3 2025 | -1,400 | Reduce 7.05% | 18,471 | $1318.02 |
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 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Alan Fournier's largest addition to TransDigm Group Incorporated (TDG) was in Q2 2013, adding 2,152,710 shares worth $337.48 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Alan Fournier's firm, Pennant Investors, Lp, owns 18,471 shares of TransDigm Group Incorporated (TDG), valued at approximately $24.35 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, TransDigm Group Incorporated (TDG) represents approximately 6.55% of Alan Fournier's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Alan Fournier's peak holding in TransDigm Group Incorporated (TDG) was 2,274,110 shares, as reported at the end of Q4 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.